diff --git a/osu.Game/Extensions/ModelExtensions.cs b/osu.Game/Extensions/ModelExtensions.cs
index c8561ecdb3..3426484c14 100644
--- a/osu.Game/Extensions/ModelExtensions.cs
+++ b/osu.Game/Extensions/ModelExtensions.cs
@@ -3,6 +3,7 @@
 
 using osu.Game.Beatmaps;
 using osu.Game.Database;
+using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Rulesets;
 using osu.Game.Scoring;
 using osu.Game.Users;
@@ -85,6 +86,14 @@ namespace osu.Game.Extensions
         /// <returns>Whether online IDs match. If either instance is missing an online ID, this will return false.</returns>
         public static bool MatchesOnlineID(this IRulesetInfo? instance, IRulesetInfo? other) => matchesOnlineID(instance, other);
 
+        /// <summary>
+        /// Check whether the online ID of two <see cref="APIUser"/>s match.
+        /// </summary>
+        /// <param name="instance">The instance to compare.</param>
+        /// <param name="other">The other instance to compare against.</param>
+        /// <returns>Whether online IDs match. If either instance is missing an online ID, this will return false.</returns>
+        public static bool MatchesOnlineID(this APIUser? instance, APIUser? other) => matchesOnlineID(instance, other);
+
         private static bool matchesOnlineID(this IHasOnlineID<long>? instance, IHasOnlineID<long>? other)
         {
             if (instance == null || other == null)