diff --git a/Sources/src/main/kotlin/allin/data/postgres/PostgresBetDataSource.kt b/Sources/src/main/kotlin/allin/data/postgres/PostgresBetDataSource.kt
index 58a553a..35c0fd1 100644
--- a/Sources/src/main/kotlin/allin/data/postgres/PostgresBetDataSource.kt
+++ b/Sources/src/main/kotlin/allin/data/postgres/PostgresBetDataSource.kt
@@ -197,12 +197,27 @@ class PostgresBetDataSource(private val database: Database) : BetDataSource {
             }
         )
 
-        if (bet.type == BetType.CUSTOM) {
-            bet.response.forEach { selected ->
+        val responses = if (bet.type == BetType.BINARY) {
+            listOf(YES_VALUE, NO_VALUE)
+        } else {
+            bet.response
+        }
+
+        responses.forEach { response ->
+            database.betAnswerInfos.add(
+                BetAnswerInfoEntity {
+                    this.betId = bet.id
+                    this.response = response
+                    this.totalStakes = 0
+                    this.odds = 1f
+                }
+            )
+
+            if (bet.type == BetType.CUSTOM) {
                 database.responses.add(
                     ResponseEntity {
                         this.betId = bet.id
-                        this.response = selected
+                        this.response = response
                     }
                 )
             }
diff --git a/Sources/src/main/kotlin/allin/data/postgres/PostgresParticipationDataSource.kt b/Sources/src/main/kotlin/allin/data/postgres/PostgresParticipationDataSource.kt
index c6b3b96..6a56aa3 100644
--- a/Sources/src/main/kotlin/allin/data/postgres/PostgresParticipationDataSource.kt
+++ b/Sources/src/main/kotlin/allin/data/postgres/PostgresParticipationDataSource.kt
@@ -34,8 +34,9 @@ class PostgresParticipationDataSource(private val database: Database) : Particip
             if (it.response == participation.answer) {
                 it.totalStakes += participation.stake
             }
-            val probability = it.totalStakes / betInfo.totalStakes.toFloat()
-            it.odds = 1 / probability
+
+            val probability = (it.totalStakes / betInfo.totalStakes.toFloat())
+            it.odds = if (probability == 0f) 1f else 1 / probability
             it.flushChanges()
         }
     }