diff --git a/app/src/main/kotlin/xyz/etztech/stonks/StatisticsImporter.kt b/app/src/main/kotlin/xyz/etztech/stonks/StatisticsImporter.kt
index 03ccc36..20aebda 100644
--- a/app/src/main/kotlin/xyz/etztech/stonks/StatisticsImporter.kt
+++ b/app/src/main/kotlin/xyz/etztech/stonks/StatisticsImporter.kt
@@ -4,8 +4,7 @@ import com.beust.klaxon.*
 import com.beust.klaxon.Klaxon
 import java.io.File
 import java.time.Instant
-import org.jetbrains.exposed.sql.Database
-import org.jetbrains.exposed.sql.insert
+import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.`java-time`.timestamp
 import org.jetbrains.exposed.sql.transactions.transaction
 import xyz.etztech.stonks.dsl.Statistics
@@ -24,14 +23,35 @@ object StatisticsImporter {
         val playerId = file.nameWithoutExtension
 
         transaction(database) {
+            val maxExpr = Statistics.value.max()
+
+            val playerStats = emptyMap<String, MutableMap<String, Long>>().toMutableMap()
+
+            Statistics.slice(Statistics.type, Statistics.name, maxExpr)
+                    .select { Statistics.playerId.eq(playerId) }
+                    .groupBy(Statistics.type, Statistics.name)
+                    .forEach {
+                        if (playerStats.containsKey(it[Statistics.type])) {
+                            playerStats[it[Statistics.type]]?.put(
+                                    it[Statistics.name], it[maxExpr]!!)
+                        } else {
+                            playerStats.put(
+                                    it[Statistics.type],
+                                    mapOf<String, Long>(it[Statistics.name] to it[maxExpr]!!)
+                                            .toMutableMap())
+                        }
+                    }
+
             statsFile?.stats?.forEach { type, stats ->
                 stats.forEach { name, value ->
-                    Statistics.insert {
-                        it[Statistics.playerId] = playerId
-                        it[Statistics.type] = type
-                        it[Statistics.name] = name
-                        it[Statistics.timestamp] = Instant.now() as Instant
-                        it[Statistics.value] = value
+                    if (playerStats.get(type)?.get(name) != value) {
+                        Statistics.insert {
+                            it[Statistics.playerId] = playerId
+                            it[Statistics.type] = type
+                            it[Statistics.name] = name
+                            it[Statistics.timestamp] = Instant.now() as Instant
+                            it[Statistics.value] = value
+                        }
                     }
                 }
             }