diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index 5f946a2588..e9fd422e20 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -4363,50 +4363,22 @@ static void Cmd_getexp(void)
     }
 }
 
-static bool32 NoAliveMonsForPlayerAndPartner(void)
-{
-    u32 i;
-    u32 HP_count = 0;
-
-    if (gBattleTypeFlags & BATTLE_TYPE_INGAME_PARTNER && (gPartnerTrainerId == TRAINER_STEVEN_PARTNER || gPartnerTrainerId >= TRAINER_CUSTOM_PARTNER))
-    {
-        for (i = 0; i < PARTY_SIZE; i++)
-        {
-            if (GetMonData(&gPlayerParty[i], MON_DATA_SPECIES) && !GetMonData(&gPlayerParty[i], MON_DATA_IS_EGG)
-             && (!(gBattleTypeFlags & BATTLE_TYPE_ARENA) || !(gBattleStruct->arenaLostPlayerMons & gBitTable[i])))
-            {
-                HP_count += GetMonData(&gPlayerParty[i], MON_DATA_HP);
-            }
-        }
-    }
-
-    return (HP_count == 0);
-}
-
 bool32 NoAliveMonsForPlayer(void)
 {
     u32 i;
+    u32 maxI = PARTY_SIZE;
     u32 HP_count = 0;
 
+    if (B_MULTI_BATTLE_WHITEOUT < GEN_4 && gBattleTypeFlags & (BATTLE_TYPE_MULTI | BATTLE_TYPE_INGAME_PARTNER))
+        maxI = MULTI_PARTY_SIZE;
+
     // Get total HP for the player's party to determine if the player has lost
-    if (gBattleTypeFlags & BATTLE_TYPE_INGAME_PARTNER && (gPartnerTrainerId == TRAINER_STEVEN_PARTNER || gPartnerTrainerId >= TRAINER_CUSTOM_PARTNER))
+    for (i = 0; i < maxI; i++)
     {
-        // In multi battle with Steven, skip his Pokémon
-        for (i = 0; i < MULTI_PARTY_SIZE; i++)
+        if (GetMonData(&gPlayerParty[i], MON_DATA_SPECIES) && !GetMonData(&gPlayerParty[i], MON_DATA_IS_EGG)
+            && (!(gBattleTypeFlags & BATTLE_TYPE_ARENA) || !(gBattleStruct->arenaLostPlayerMons & gBitTable[i])))
         {
-            if (GetMonData(&gPlayerParty[i], MON_DATA_SPECIES) && !GetMonData(&gPlayerParty[i], MON_DATA_IS_EGG))
-                HP_count += GetMonData(&gPlayerParty[i], MON_DATA_HP);
-        }
-    }
-    else
-    {
-        for (i = 0; i < PARTY_SIZE; i++)
-        {
-            if (GetMonData(&gPlayerParty[i], MON_DATA_SPECIES) && !GetMonData(&gPlayerParty[i], MON_DATA_IS_EGG)
-             && (!(gBattleTypeFlags & BATTLE_TYPE_ARENA) || !(gBattleStruct->arenaLostPlayerMons & gBitTable[i])))
-            {
-                HP_count += GetMonData(&gPlayerParty[i], MON_DATA_HP);
-            }
+            HP_count += GetMonData(&gPlayerParty[i], MON_DATA_HP);
         }
     }
 
@@ -4446,16 +4418,9 @@ static void Cmd_checkteamslost(void)
     if (gBattleControllerExecFlags)
         return;
 
-    if (B_MULTI_BATTLE_WHITEOUT >= GEN_4 && gBattleTypeFlags & (BATTLE_TYPE_MULTI | BATTLE_TYPE_INGAME_PARTNER))
-    {
-        if (NoAliveMonsForPlayerAndPartner())
-            gBattleOutcome |= B_OUTCOME_LOST;
-    }
-    else
-    {
-        if (NoAliveMonsForPlayer())
-            gBattleOutcome |= B_OUTCOME_LOST;
-    }
+    if (NoAliveMonsForPlayer())
+        gBattleOutcome |= B_OUTCOME_LOST;
+
     if (NoAliveMonsForOpponent())
         gBattleOutcome |= B_OUTCOME_WON;