diff --git a/PKHeX.Core/Saves/SAV4DP.cs b/PKHeX.Core/Saves/SAV4DP.cs
index f261d6e92..5e6d9d993 100644
--- a/PKHeX.Core/Saves/SAV4DP.cs
+++ b/PKHeX.Core/Saves/SAV4DP.cs
@@ -148,14 +148,14 @@ private void SetActiveGiftFlags(IReadOnlyList<MysteryGift> gifts)
 
         public override string Rival
         {
-            get => GetString(0x25A8, OTLength);
+            get => GetString(0x25A8, OTLength * 2);
             set => SetString(value, OTLength).CopyTo(Data, 0x25A8);
         }
 
         public override Span<byte> Rival_Trash
         {
-            get => Data.AsSpan(0x25A8, OTLength);
-            set { if (value.Length == OTLength) value.CopyTo(Data.AsSpan(0x25A8)); }
+            get => Data.AsSpan(0x25A8, OTLength * 2);
+            set { if (value.Length == OTLength * 2) value.CopyTo(Data.AsSpan(0x25A8)); }
         }
 
         public override int X2 { get => BitConverter.ToUInt16(General, 0x25FA); set => BitConverter.GetBytes((ushort)value).CopyTo(General, 0x25FA); }
diff --git a/PKHeX.Core/Saves/SAV4HGSS.cs b/PKHeX.Core/Saves/SAV4HGSS.cs
index 3086ca483..fb1400a20 100644
--- a/PKHeX.Core/Saves/SAV4HGSS.cs
+++ b/PKHeX.Core/Saves/SAV4HGSS.cs
@@ -157,14 +157,14 @@ public override IReadOnlyList<InventoryPouch> Inventory
 
         public override string Rival
         {
-            get => GetString(0x22D4, OTLength);
+            get => GetString(0x22D4, OTLength * 2);
             set => SetString(value, OTLength).CopyTo(Data, 0x22D4);
         }
 
         public override Span<byte> Rival_Trash
         {
-            get => Data.AsSpan(0x22D4, OTLength);
-            set { if (value.Length == OTLength) value.CopyTo(Data.AsSpan(0x22D4)); }
+            get => Data.AsSpan(0x22D4, OTLength * 2);
+            set { if (value.Length == OTLength * 2) value.CopyTo(Data.AsSpan(0x22D4)); }
         }
 
         public override int X2 { get => BitConverter.ToUInt16(General, 0x236E); set => BitConverter.GetBytes((ushort)value).CopyTo(General, 0x236E); }
diff --git a/PKHeX.Core/Saves/SAV4Pt.cs b/PKHeX.Core/Saves/SAV4Pt.cs
index 2138fb720..408fa1397 100644
--- a/PKHeX.Core/Saves/SAV4Pt.cs
+++ b/PKHeX.Core/Saves/SAV4Pt.cs
@@ -114,14 +114,14 @@ public override IReadOnlyList<InventoryPouch> Inventory
 
         public override string Rival
         {
-            get => GetString(0x27E8, OTLength);
+            get => GetString(0x27E8, OTLength * 2);
             set => SetString(value, OTLength).CopyTo(Data, 0x27E8);
         }
 
         public override Span<byte> Rival_Trash
         {
-            get => Data.AsSpan(0x27E8, OTLength);
-            set { if (value.Length == OTLength) value.CopyTo(Data.AsSpan(0x27E8)); }
+            get => Data.AsSpan(0x27E8, OTLength * 2);
+            set { if (value.Length == OTLength * 2) value.CopyTo(Data.AsSpan(0x27E8)); }
         }
 
         public override int X2 { get => BitConverter.ToUInt16(General, 0x287E); set => BitConverter.GetBytes((ushort)value).CopyTo(General, 0x287E); }
diff --git a/PKHeX.Core/Saves/SAV5B2W2.cs b/PKHeX.Core/Saves/SAV5B2W2.cs
index 1c3ac913c..b6ebdf4ba 100644
--- a/PKHeX.Core/Saves/SAV5B2W2.cs
+++ b/PKHeX.Core/Saves/SAV5B2W2.cs
@@ -60,14 +60,14 @@ private void Initialize()
 
         public string Rival
         {
-            get => GetString(0x23BA4, OTLength);
+            get => GetString(0x23BA4, OTLength * 2);
             set => SetString(value, OTLength).CopyTo(Data, 0x23BA4);
         }
 
         public Span<byte> Rival_Trash
         {
-            get => Data.AsSpan(0x23BA4, OTLength);
-            set { if (value.Length == OTLength) value.CopyTo(Data.AsSpan(0x23BA4)); }
+            get => Data.AsSpan(0x23BA4, OTLength * 2);
+            set { if (value.Length == OTLength * 2) value.CopyTo(Data.AsSpan(0x23BA4)); }
         }
     }
 }