diff --git a/build.gradle b/build.gradle
index ec7be263..b4058899 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ plugins {
 }
 
 group = 'net.momirealms'
-version = '1.2.18.2'
+version = '1.2.19'
 
 repositories {
     mavenCentral()
diff --git a/src/main/java/net/momirealms/customfishing/api/CustomFishingAPI.java b/src/main/java/net/momirealms/customfishing/api/CustomFishingAPI.java
index 80dcf803..edc6ea7a 100644
--- a/src/main/java/net/momirealms/customfishing/api/CustomFishingAPI.java
+++ b/src/main/java/net/momirealms/customfishing/api/CustomFishingAPI.java
@@ -17,8 +17,53 @@
 
 package net.momirealms.customfishing.api;
 
+import net.momirealms.customfishing.CustomFishing;
+import net.momirealms.customfishing.competition.Competition;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.Nullable;
+
 public class CustomFishingAPI {
 
+    /**
+     * return null if there's no competition
+     * @return competition
+     */
+    @Nullable
+    public static Competition getCurrentCompetition() {
+        return Competition.getCurrentCompetition();
+    }
 
+    /**
+     * get a fish's size
+     * @return size
+     */
+    public static float getFishSize(ItemStack fish) {
+        return CustomFishing.plugin.getFishingManager().getSize(fish);
+    }
 
+    /**
+     * get plugin instance
+     * @return plugin instance
+     */
+    public static CustomFishing getInstance() {
+        return CustomFishing.plugin;
+    }
+
+    /**
+     * get an item's price
+     * @param itemStack item to sell
+     * @return price
+     */
+    public static double getItemPrice(ItemStack itemStack) {
+        return CustomFishing.plugin.getSellManager().getSingleItemPrice(itemStack);
+    }
+
+    /**
+     * build an itemStack instance from key
+     * @param id item_id
+     * @return itemStack
+     */
+    public static ItemStack buildItem(String id) {
+        return CustomFishing.plugin.getIntegrationManager().build(id);
+    }
 }
diff --git a/src/main/java/net/momirealms/customfishing/competition/Competition.java b/src/main/java/net/momirealms/customfishing/competition/Competition.java
index 499ba69b..b6f1bb99 100644
--- a/src/main/java/net/momirealms/customfishing/competition/Competition.java
+++ b/src/main/java/net/momirealms/customfishing/competition/Competition.java
@@ -268,14 +268,35 @@ public class Competition {
         }
     }
 
-
     public void refreshData(Player player, float score, boolean doubleScore) {
         if (this.goal == CompetitionGoal.CATCH_AMOUNT) {
             score = 1f;
         }
-        if (doubleScore) {
-            score *= 2;
+        if (this.goal == CompetitionGoal.MAX_SIZE) {
+            doubleScore = false;
         }
-        ranking.refreshData(player.getName(), score);
+        if (this.goal == CompetitionGoal.MAX_SIZE) {
+            if (score > ranking.getPlayerScore(player.getName())) {
+                ranking.setData(player.getName(), score);
+            }
+            return;
+        }
+        ranking.refreshData(player.getName(), doubleScore ? 2 * score : score);
+    }
+
+    public CompetitionGoal getGoal() {
+        return goal;
+    }
+
+    public RankingInterface getRanking() {
+        return ranking;
+    }
+
+    public static Competition getCurrentCompetition() {
+        return currentCompetition;
+    }
+
+    public long getStartTime() {
+        return startTime;
     }
 }
diff --git a/src/main/java/net/momirealms/customfishing/competition/CompetitionGoal.java b/src/main/java/net/momirealms/customfishing/competition/CompetitionGoal.java
index e2ffd48f..25ba1199 100644
--- a/src/main/java/net/momirealms/customfishing/competition/CompetitionGoal.java
+++ b/src/main/java/net/momirealms/customfishing/competition/CompetitionGoal.java
@@ -21,6 +21,8 @@ public enum CompetitionGoal {
 
     CATCH_AMOUNT,
     TOTAL_SCORE,
+    MAX_SIZE,
+    TOTAL_SIZE,
     RANDOM
 
 }
diff --git a/src/main/java/net/momirealms/customfishing/competition/CompetitionPlayer.java b/src/main/java/net/momirealms/customfishing/competition/CompetitionPlayer.java
index 4d92fee2..7b3fe43a 100644
--- a/src/main/java/net/momirealms/customfishing/competition/CompetitionPlayer.java
+++ b/src/main/java/net/momirealms/customfishing/competition/CompetitionPlayer.java
@@ -38,6 +38,11 @@ public class CompetitionPlayer implements Comparable<CompetitionPlayer>{
         this.time = System.currentTimeMillis();
     }
 
+    public void setScore(float score){
+        this.score = score;
+        this.time = System.currentTimeMillis();
+    }
+
     public float getScore() {
         return this.score;
     }
diff --git a/src/main/java/net/momirealms/customfishing/competition/CompetitionSchedule.java b/src/main/java/net/momirealms/customfishing/competition/CompetitionSchedule.java
index 93da20f3..764392ff 100644
--- a/src/main/java/net/momirealms/customfishing/competition/CompetitionSchedule.java
+++ b/src/main/java/net/momirealms/customfishing/competition/CompetitionSchedule.java
@@ -82,7 +82,7 @@ public class CompetitionSchedule extends Function {
                     }
                 }
             }
-        }.runTaskTimer(CustomFishing.plugin, 60 - LocalTime.now().getSecond(), 200);
+        }.runTaskTimer(CustomFishing.plugin, 60 - LocalTime.now().getSecond(), 100);
     }
 
     public void stopCheck() {
diff --git a/src/main/java/net/momirealms/customfishing/competition/ranking/LocalRankingImpl.java b/src/main/java/net/momirealms/customfishing/competition/ranking/LocalRankingImpl.java
index e99b9a68..664f0dd2 100644
--- a/src/main/java/net/momirealms/customfishing/competition/ranking/LocalRankingImpl.java
+++ b/src/main/java/net/momirealms/customfishing/competition/ranking/LocalRankingImpl.java
@@ -76,6 +76,16 @@ public class LocalRankingImpl implements RankingInterface {
         return null;
     }
 
+    @Override
+    public float getPlayerScore(String player) {
+        for (CompetitionPlayer competitionPlayer : competitionPlayers) {
+            if (competitionPlayer.getPlayer().equals(player)) {
+                return competitionPlayer.getScore();
+            }
+        }
+        return 0;
+    }
+
     @Override
     public CompetitionPlayer[] getTop3Player() {
         CompetitionPlayer[] competitionPlayers = new CompetitionPlayer[3];
@@ -132,6 +142,19 @@ public class LocalRankingImpl implements RankingInterface {
         }
     }
 
+    @Override
+    public void setData(String player, float score) {
+        CompetitionPlayer competitionPlayer = getCompetitionPlayer(player);
+        if (competitionPlayer != null) {
+            removePlayer(competitionPlayer);
+            competitionPlayer.setScore(score);
+            addPlayer(competitionPlayer);
+        } else {
+            competitionPlayer = new CompetitionPlayer(player, score);
+            addPlayer(competitionPlayer);
+        }
+    }
+
     @Override
     public float getFirstScore() {
         return getScoreAt(1);
diff --git a/src/main/java/net/momirealms/customfishing/competition/ranking/RankingInterface.java b/src/main/java/net/momirealms/customfishing/competition/ranking/RankingInterface.java
index bbcc9d43..24ff17d0 100644
--- a/src/main/java/net/momirealms/customfishing/competition/ranking/RankingInterface.java
+++ b/src/main/java/net/momirealms/customfishing/competition/ranking/RankingInterface.java
@@ -28,8 +28,10 @@ public interface RankingInterface {
     Iterator<String> getIterator();
     int getSize();
     String getPlayerRank(String player);
+    float getPlayerScore(String player);
     CompetitionPlayer[] getTop3Player();
     void refreshData(String player, float score);
+    void setData(String player, float score);
     float getFirstScore();
     float getSecondScore();
     float getThirdScore();
diff --git a/src/main/java/net/momirealms/customfishing/competition/ranking/RedisRankingImpl.java b/src/main/java/net/momirealms/customfishing/competition/ranking/RedisRankingImpl.java
index be276b77..e7963d91 100644
--- a/src/main/java/net/momirealms/customfishing/competition/ranking/RedisRankingImpl.java
+++ b/src/main/java/net/momirealms/customfishing/competition/ranking/RedisRankingImpl.java
@@ -83,6 +83,17 @@ public class RedisRankingImpl implements RankingInterface {
         return String.valueOf(rank + 1);
     }
 
+    @Override
+    public float getPlayerScore(String player) {
+        Jedis jedis = JedisUtil.getJedis();
+        Double rank = jedis.zscore("cf_competition", player);
+        jedis.close();
+        if(rank == null) {
+            return 0;
+        }
+        return rank.floatValue();
+    }
+
     @Override
     public CompetitionPlayer[] getTop3Player() {
         CompetitionPlayer[] competitionPlayers = new CompetitionPlayer[3];
@@ -113,6 +124,13 @@ public class RedisRankingImpl implements RankingInterface {
         jedis.close();
     }
 
+    @Override
+    public void setData(String player, float score) {
+        Jedis jedis = JedisUtil.getJedis();
+        jedis.zadd("cf_competition", score, player);
+        jedis.close();
+    }
+
     @Override
     public float getFirstScore() {
         Jedis jedis = JedisUtil.getJedis();
diff --git a/src/main/java/net/momirealms/customfishing/manager/BonusManager.java b/src/main/java/net/momirealms/customfishing/manager/BonusManager.java
index 8ce60476..966d3241 100644
--- a/src/main/java/net/momirealms/customfishing/manager/BonusManager.java
+++ b/src/main/java/net/momirealms/customfishing/manager/BonusManager.java
@@ -172,7 +172,7 @@ public class BonusManager extends Function {
                 case "time" -> bonus.setTime(config.getDouble(key + ".modifier.time"));
                 case "difficulty" -> bonus.setDifficulty(config.getInt(key + ".modifier.difficulty"));
                 case "double-loot" -> bonus.setDoubleLoot(config.getDouble(key + ".modifier.double-loot"));
-                case "score" -> bonus.setScore(config.getDouble(key + ".modifier.score"));
+                case "score" -> bonus.setScore(config.getDouble(key + ".modifier.score") - 1);
                 case "lava-fishing" -> bonus.setCanLavaFishing(config.getBoolean(key + ".modifier.lava-fishing", false));
             }
         });
diff --git a/src/main/java/net/momirealms/customfishing/manager/FishingManager.java b/src/main/java/net/momirealms/customfishing/manager/FishingManager.java
index 0714d61f..a66292d9 100644
--- a/src/main/java/net/momirealms/customfishing/manager/FishingManager.java
+++ b/src/main/java/net/momirealms/customfishing/manager/FishingManager.java
@@ -27,6 +27,7 @@ import net.kyori.adventure.text.serializer.gson.GsonComponentSerializer;
 import net.momirealms.customfishing.CustomFishing;
 import net.momirealms.customfishing.api.event.*;
 import net.momirealms.customfishing.competition.Competition;
+import net.momirealms.customfishing.competition.CompetitionGoal;
 import net.momirealms.customfishing.data.PlayerBagData;
 import net.momirealms.customfishing.integration.AntiGriefInterface;
 import net.momirealms.customfishing.integration.MobInterface;
@@ -149,7 +150,7 @@ public class FishingManager extends Function {
             initialBonus.setDifficulty(0);
             initialBonus.setDoubleLoot(0);
             initialBonus.setTime(1);
-            initialBonus.setScore(1);
+            initialBonus.setScore(0);
             initialBonus.setWeightMD(new HashMap<>());
             initialBonus.setWeightAS(new HashMap<>());
 
@@ -400,7 +401,7 @@ public class FishingManager extends Function {
             return;
         }
         if (loot instanceof Mob mob) {
-            summonMob(player, loot, item.getLocation(), mob, bonus.getScore());
+            summonMob(player, loot, item.getLocation(), mob, bonus.getScoreBonus());
             return;
         }
         if (loot instanceof DroppedItem droppedItem){
@@ -409,7 +410,7 @@ public class FishingManager extends Function {
                     return;
                 }
             }
-            dropCustomFishingLoot(player, item.getLocation(), droppedItem, bonus.getDoubleLoot() > Math.random(), bonus.getScore());
+            dropCustomFishingLoot(player, item.getLocation(), droppedItem, bonus.getDoubleLoot() > Math.random(), bonus.getScoreBonus());
         }
     }
 
@@ -425,7 +426,7 @@ public class FishingManager extends Function {
                 return;
             }
             if (loot instanceof Mob mob) {
-                summonMob(player, loot, event.getHook().getLocation(), mob, bonus.getScore());
+                summonMob(player, loot, event.getHook().getLocation(), mob, bonus.getScoreBonus());
                 return;
             }
             if (loot instanceof DroppedItem droppedItem) {
@@ -434,7 +435,7 @@ public class FishingManager extends Function {
                         return;
                     }
                 }
-                dropCustomFishingLoot(player, event.getHook().getLocation(), droppedItem, bonus.getDoubleLoot() > Math.random(), bonus.getScore());
+                dropCustomFishingLoot(player, event.getHook().getLocation(), droppedItem, bonus.getDoubleLoot() > Math.random(), bonus.getScoreBonus());
             }
         }
     }
@@ -443,6 +444,7 @@ public class FishingManager extends Function {
         fishingPlayer.cancel();
         Loot loot = nextLoot.remove(player);
         VanillaLoot vanilla = vanillaLoot.remove(player);
+        nextBonus.remove(player);
         player.removePotionEffect(PotionEffectType.SLOW);
         if (fishingPlayer.isSuccess()) {
             if (ConfigManager.rodLoseDurability) loseDurability(player);
@@ -504,11 +506,15 @@ public class FishingManager extends Function {
             return;
         }
 
-        Bonus bonus = nextBonus.remove(player);
-
-        if (Competition.currentCompetition != null){
-            float score = (float) (droppedItem.getScore() * scoreMultiplier);
-            Competition.currentCompetition.refreshData(player, (float) (score * bonus.getScore()), isDouble);
+        if (Competition.currentCompetition != null) {
+            float score;
+            if (Competition.currentCompetition.getGoal() == CompetitionGoal.MAX_SIZE || Competition.currentCompetition.getGoal() == CompetitionGoal.TOTAL_SIZE) {
+                score = getSize(drop);
+            }
+            else {
+                score = (float) ((float) droppedItem.getScore() * scoreMultiplier);
+            }
+            Competition.currentCompetition.refreshData(player, score, fishResultEvent.isDouble());
             Competition.currentCompetition.tryAddBossBarToPlayer(player);
         }
 
@@ -553,10 +559,8 @@ public class FishingManager extends Function {
             return true;
         }
 
-        nextBonus.remove(player);
-
-        if (Competition.currentCompetition != null){
-            Competition.currentCompetition.refreshData(player, 0, isDouble);
+        if (Competition.currentCompetition != null) {
+            Competition.currentCompetition.refreshData(player, 0, fishResultEvent.isDouble());
             Competition.currentCompetition.tryAddBossBarToPlayer(player);
         }
 
@@ -596,10 +600,8 @@ public class FishingManager extends Function {
             return;
         }
 
-        nextBonus.remove(player);
-
         if (Competition.currentCompetition != null){
-            Competition.currentCompetition.refreshData(player, 0, isDouble);
+            Competition.currentCompetition.refreshData(player, 0, fishResultEvent.isDouble());
             Competition.currentCompetition.tryAddBossBarToPlayer(player);
         }
 
@@ -618,11 +620,15 @@ public class FishingManager extends Function {
             return;
         }
 
-        Bonus bonus = nextBonus.remove(player);
-
         if (Competition.currentCompetition != null) {
-            float score = (float) (loot.getScore() * scoreMultiplier);
-            Competition.currentCompetition.refreshData(player, (float) (score * bonus.getScore()), false);
+            float score;
+            if (Competition.currentCompetition.getGoal() == CompetitionGoal.MAX_SIZE || Competition.currentCompetition.getGoal() == CompetitionGoal.TOTAL_SIZE) {
+                score = 0;
+            }
+            else {
+                score = (float) loot.getScore();
+            }
+            Competition.currentCompetition.refreshData(player, (float) (score * scoreMultiplier), false);
             Competition.currentCompetition.tryAddBossBarToPlayer(player);
         }
 
@@ -714,8 +720,6 @@ public class FishingManager extends Function {
                 action.doOn(player, null);
         }
 
-        nextBonus.remove(player);
-
         AdventureUtil.playerTitle(
                 player,
                 ConfigManager.failureTitle[new Random().nextInt(ConfigManager.failureTitle.length)],
@@ -927,11 +931,11 @@ public class FishingManager extends Function {
 
         Bonus bonus = nextBonus.get(player);
         boolean isDouble = false;
-        double scoreMultiplier = 0;
+        double scoreMultiplier = 1;
         if (bonus != null) {
             speed += bonus.getDifficulty();
             isDouble = Math.random() < bonus.getDoubleLoot();
-            scoreMultiplier = bonus.getScore() + 1;
+            scoreMultiplier = bonus.getScoreBonus();
         }
 
         if (speed < 1){
@@ -1006,4 +1010,13 @@ public class FishingManager extends Function {
     public void removePlayerFromLavaFishing(Player player) {
         this.bobberTaskCache.remove(player);
     }
+
+    public float getSize(ItemStack itemStack) {
+        NBTItem nbtItem = new NBTItem(itemStack);
+        NBTCompound fishMeta = nbtItem.getCompound("FishMeta");
+        if (fishMeta != null) {
+            return fishMeta.getFloat("size");
+        }
+        return 0;
+    }
 }
diff --git a/src/main/java/net/momirealms/customfishing/manager/SellManager.java b/src/main/java/net/momirealms/customfishing/manager/SellManager.java
index ac59678e..a19f827d 100644
--- a/src/main/java/net/momirealms/customfishing/manager/SellManager.java
+++ b/src/main/java/net/momirealms/customfishing/manager/SellManager.java
@@ -165,8 +165,16 @@ public class SellManager extends Function {
                 if (config.contains("decorative-icons." + key + ".display.lore")) item.setLore(config.getStringList("decorative-icons." + key + ".display.lore"));
                 if (config.contains("decorative-icons." + key + ".custom-model-data")) item.setCustomModelData(config.getInt("decorative-icons." + key + ".custom-model-data"));
                 ItemStack itemStack = ItemStackUtil.getFromItem(item);
-                for (int slot : config.getIntegerList("decorative-icons." + key + ".slot")) {
-                    guiItems.put(slot - 1, itemStack);
+                if (config.contains("decorative-icons." + key + ".slots")) {
+                    for (int slot : config.getIntegerList("decorative-icons." + key + ".slots")) {
+                        guiItems.put(slot - 1, itemStack);
+                    }
+                }
+                // for old version compatibility
+                if (config.contains("decorative-icons." + key + ".slot")) {
+                    for (int slot : config.getIntegerList("decorative-icons." + key + ".slot")) {
+                        guiItems.put(slot - 1, itemStack);
+                    }
                 }
             });
         }
@@ -354,7 +362,7 @@ public class SellManager extends Function {
         return totalPrice;
     }
 
-    private float getSingleItemPrice(ItemStack itemStack) {
+    public float getSingleItemPrice(ItemStack itemStack) {
         NBTItem nbtItem = new NBTItem(itemStack);
         NBTCompound fishMeta = nbtItem.getCompound("FishMeta");
         float price = 0;
diff --git a/src/main/java/net/momirealms/customfishing/object/fishing/Bonus.java b/src/main/java/net/momirealms/customfishing/object/fishing/Bonus.java
index 19c857c3..8b790a46 100644
--- a/src/main/java/net/momirealms/customfishing/object/fishing/Bonus.java
+++ b/src/main/java/net/momirealms/customfishing/object/fishing/Bonus.java
@@ -56,7 +56,7 @@ public class Bonus {
         this.time = time;
     }
 
-    public double getScore() {
+    private double getScore() {
         return score;
     }
 
@@ -106,10 +106,14 @@ public class Bonus {
         if (anotherBonus.getTime() != 0) this.time += (anotherBonus.getTime() - 1);
         if (anotherBonus.getDoubleLoot() != 0) this.doubleLoot += anotherBonus.getDoubleLoot();
         if (anotherBonus.getDifficulty() != 0) this.difficulty += anotherBonus.getDifficulty();
-        if (anotherBonus.getScore() != 0) this.score += (anotherBonus.getScore() - 1);
+        if (anotherBonus.getScore() != 0) this.score += anotherBonus.getScore();
         if (anotherBonus.canLavaFishing()) this.canLavaFishing = true;
     }
 
+    public double getScoreBonus() {
+        return score + 1;
+    }
+
     public boolean hasSpecialRod() {
         return hasSpecialRod;
     }
diff --git a/src/main/resources/competition.yml b/src/main/resources/competition.yml
index 922de0a0..02e97c04 100644
--- a/src/main/resources/competition.yml
+++ b/src/main/resources/competition.yml
@@ -2,6 +2,8 @@ example:
 
   # TOTAL_SCORE
   # CATCH_AMOUNT
+  # MAX_SIZE
+  # TOTAL_SIZE
   # RANDOM
   goal: CATCH_AMOUNT
 
diff --git a/src/main/resources/sell-fish.yml b/src/main/resources/sell-fish.yml
index dcafc075..aea165ea 100644
--- a/src/main/resources/sell-fish.yml
+++ b/src/main/resources/sell-fish.yml
@@ -62,7 +62,7 @@ decorative-icons:
     material: BLACK_STAINED_GLASS_PANE
     display:
       name: ' '
-    slot:
+    slots:
       - 1
       - 2
       - 3