diff --git a/PKHeX.Core/Saves/SAV1.cs b/PKHeX.Core/Saves/SAV1.cs
index f247fde47..0854395b2 100644
--- a/PKHeX.Core/Saves/SAV1.cs
+++ b/PKHeX.Core/Saves/SAV1.cs
@@ -7,7 +7,7 @@ namespace PKHeX.Core;
 /// <summary>
 /// Generation 1 <see cref="SaveFile"/> object.
 /// </summary>
-public sealed class SAV1 : SaveFile, ILangDeviantSave, IEventFlagArray
+public sealed class SAV1 : SaveFile, ILangDeviantSave, IEventFlagArray, IEventWorkArray<byte>
 {
     protected internal override string ShortSummary => $"{OT} ({Version}) - {PlayTimeString}";
     public override string Extension => ".sav";
@@ -164,6 +164,11 @@ public void SetEventFlag(int flagNumber, bool value)
         SetFlag(Offsets.EventFlag + (flagNumber >> 3), flagNumber & 7, value);
     }
 
+    // Event Work
+    public int EventWorkCount => 0x100;
+    public byte GetWork(int index) => Data[Offsets.EventWork + index];
+    public void SetWork(int index, byte value) => Data[Offsets.EventWork + index] = value;
+
     protected override byte[] GetFinalData()
     {
         var capacity = Japanese ? PokeListType.StoredJP : PokeListType.Stored;
diff --git a/PKHeX.Core/Saves/Substructures/Gen12/SAV1Offsets.cs b/PKHeX.Core/Saves/Substructures/Gen12/SAV1Offsets.cs
index db7c347d8..7b4764c1e 100644
--- a/PKHeX.Core/Saves/Substructures/Gen12/SAV1Offsets.cs
+++ b/PKHeX.Core/Saves/Substructures/Gen12/SAV1Offsets.cs
@@ -22,6 +22,7 @@ private static SAV1Offsets GetINT() => new()
         CurrentBoxIndex = 0x284C,
         Coin = 0x2850,
         ObjectSpawnFlags = 0x2852, // 2 bytes after Coin
+        EventWork = 0x289C,
         Starter = 0x29C3,
         EventFlag = 0x29F3,
         PlayTime = 0x2CED,
@@ -48,6 +49,7 @@ private static SAV1Offsets GetJPN() => new()
         CurrentBoxIndex = 0x2842,
         Coin = 0x2846,
         ObjectSpawnFlags = 0x2848, // 2 bytes after Coin
+        EventWork = 0x2892,
         Starter = 0x29B9,
         EventFlag = 0x29E9,
         PlayTime = 0x2CA0,
@@ -75,6 +77,7 @@ private static SAV1Offsets GetJPN() => new()
     public int ObjectSpawnFlags { get; private init; }
     public int Starter { get; private init; }
     public int EventFlag { get; private init; }
+    public int EventWork { get; private init; }
     public int PlayTime { get; private init; }
     public int Daycare { get; private init; }
     public int Party { get; private init; }