diff --git a/src/modifier/modifier.ts b/src/modifier/modifier.ts
index a92105f1b94..7ab09482f4b 100644
--- a/src/modifier/modifier.ts
+++ b/src/modifier/modifier.ts
@@ -18,7 +18,6 @@ import type { VoucherType } from "#app/system/voucher";
 import { Command } from "#app/ui/command-ui-handler";
 import { addTextObject, TextStyle } from "#app/ui/text";
 import { BooleanHolder, hslToHex, isNullOrUndefined, NumberHolder, toDmgValue } from "#app/utils";
-import { Abilities } from "#enums/abilities";
 import { BattlerTagType } from "#enums/battler-tag-type";
 import { BerryType } from "#enums/berry-type";
 import { Moves } from "#enums/moves";
@@ -1624,18 +1623,6 @@ export class FlinchChanceModifier extends PokemonHeldItemModifier {
     return super.shouldApply(pokemon, flinched) && !!flinched;
   }
 
-  /**
-   * Checks for any chance modifying abilities
-   * @param pokemon
-   * @returns `2` if the pokemon involved has a Serene Grace-like ability | `1` if it does not
-   */
-  getSecondaryChanceMultiplier(pokemon: Pokemon): number {
-    if (pokemon.hasAbility(Abilities.SERENE_GRACE)) {
-      return 2;
-    }
-    return 1;
-  }
-
   /**
    * Applies {@linkcode FlinchChanceModifier}
    * @param pokemon the {@linkcode Pokemon} that holds the item
@@ -1644,8 +1631,7 @@ export class FlinchChanceModifier extends PokemonHeldItemModifier {
    */
   override apply(pokemon: Pokemon, flinched: BooleanHolder): boolean {
     // The check for pokemon.battleSummonData is to ensure that a crash doesn't occur when a Pokemon with King's Rock procs a flinch
-    const secondaryChanceMultiplier = pokemon.battleSummonData ? this.getSecondaryChanceMultiplier(pokemon) : 1;
-    if (!flinched.value && pokemon.randSeedInt(100) < (this.getStackCount() * secondaryChanceMultiplier * this.chance)) {
+    if (!flinched.value && pokemon.randSeedInt(100) < (this.getStackCount() * this.chance)) {
       flinched.value = true;
       return true;
     }
diff --git a/src/test/abilities/serene_grace.test.ts b/src/test/abilities/serene_grace.test.ts
index 6ba56d1a594..a19b5c82546 100644
--- a/src/test/abilities/serene_grace.test.ts
+++ b/src/test/abilities/serene_grace.test.ts
@@ -7,8 +7,6 @@ import Phaser from "phaser";
 import { allMoves } from "#app/data/move";
 import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
 import { FlinchAttr } from "#app/data/move";
-import { FlinchChanceModifier } from "#app/modifier/modifier";
-
 
 describe("Abilities - Serene Grace", () => {
   let phaserGame: Phaser.Game;
@@ -48,21 +46,4 @@ describe("Abilities - Serene Grace", () => {
 
     expect(airSlashFlinchAttr.getMoveChance).toHaveLastReturnedWith(60);
   });
-
-  it("Serene Grace should double the chance of King Rock's activating", async () => {
-    game.override
-      .startingHeldItems([{ name: "KINGS_ROCK", count: 1 }]);
-
-    await game.classicMode.startBattle([ Species.SHUCKLE ]);
-
-    const kingsRockInstance = game.scene.findModifier(m => m instanceof FlinchChanceModifier) as FlinchChanceModifier;
-    vi.spyOn(kingsRockInstance, "getSecondaryChanceMultiplier");
-
-    game.move.select(Moves.TACKLE);
-    await game.setTurnOrder([ BattlerIndex.PLAYER, BattlerIndex.ENEMY ]);
-    await game.move.forceHit();
-    await game.phaseInterceptor.to("BerryPhase");
-
-    expect(kingsRockInstance.getSecondaryChanceMultiplier).toHaveLastReturnedWith(2);
-  });
 });