diff --git a/osu.Game.Rulesets.Mania/ManiaRuleset.cs b/osu.Game.Rulesets.Mania/ManiaRuleset.cs
index dad9633a37..39f22b7672 100644
--- a/osu.Game.Rulesets.Mania/ManiaRuleset.cs
+++ b/osu.Game.Rulesets.Mania/ManiaRuleset.cs
@@ -156,7 +156,7 @@ namespace osu.Game.Rulesets.Mania
                         NormalActionStart = ManiaAction.Key1,
                     }.GenerateKeyBindingsFor(variant, out _);
                 case PlayfieldType.Dual:
-                    getDualStageKeyCounts(variant, out int s1K, out int s2K);
+                    int keys = getDualStageKeyCount(variant);
 
                     var stage1Bindings = new VariantMappingGenerator
                     {
@@ -177,7 +177,7 @@ namespace osu.Game.Rulesets.Mania
                         SpecialKey = InputKey.Tilde,
                         SpecialAction = ManiaAction.Special1,
                         NormalActionStart = ManiaAction.Key1
-                    }.GenerateKeyBindingsFor(s1K, out var nextNormal);
+                    }.GenerateKeyBindingsFor(keys, out var nextNormal);
 
                     var stage2Bindings = new VariantMappingGenerator
                     {
@@ -198,7 +198,7 @@ namespace osu.Game.Rulesets.Mania
                         SpecialKey = InputKey.BackSlash,
                         SpecialAction = ManiaAction.Special2,
                         NormalActionStart = nextNormal
-                    }.GenerateKeyBindingsFor(s2K, out _);
+                    }.GenerateKeyBindingsFor(keys, out _);
 
                     return stage1Bindings.Concat(stage2Bindings);
             }
@@ -214,8 +214,8 @@ namespace osu.Game.Rulesets.Mania
                     return $"{variant}K";
                 case PlayfieldType.Dual:
                 {
-                    getDualStageKeyCounts(variant, out int s1K, out int s2K);
-                    return $"{s1K}K + {s2K}K";
+                    var keys = getDualStageKeyCount(variant);
+                    return $"{keys}K + {keys}K";
                 }
             }
         }
@@ -224,14 +224,7 @@ namespace osu.Game.Rulesets.Mania
         /// Finds the number of keys for each stage in a <see cref="PlayfieldType.Dual"/> variant.
         /// </summary>
         /// <param name="variant">The variant.</param>
-        /// <param name="stage1">The number of keys for the first stage.</param>
-        /// <param name="stage2">The number of keys for the second stage.</param>
-        private void getDualStageKeyCounts(int variant, out int stage1, out int stage2)
-        {
-            int totalKeys = variant - (int)PlayfieldType.Dual;
-            stage1 = (int)Math.Ceiling(totalKeys / 2f);
-            stage2 = (int)Math.Floor(totalKeys / 2f);
-        }
+        private int getDualStageKeyCount(int variant) => (variant - (int)PlayfieldType.Dual) / 2;
 
         /// <summary>
         /// Finds the <see cref="PlayfieldType"/> that corresponds to a variant value.
diff --git a/osu.Game.Rulesets.Mania/Mods/ManiaModDualStages.cs b/osu.Game.Rulesets.Mania/Mods/ManiaModDualStages.cs
index 2611d1c6a2..1ba4ef9af1 100644
--- a/osu.Game.Rulesets.Mania/Mods/ManiaModDualStages.cs
+++ b/osu.Game.Rulesets.Mania/Mods/ManiaModDualStages.cs
@@ -1,7 +1,6 @@
 // Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
-using System;
 using System.Collections.Generic;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Mania.Beatmaps;
@@ -38,8 +37,8 @@ namespace osu.Game.Rulesets.Mania.Mods
             var newDefinitions = new List<StageDefinition>();
             foreach (var existing in mrc.Beatmap.Stages)
             {
-                newDefinitions.Add(new StageDefinition { Columns = (int)Math.Ceiling(existing.Columns / 2f) });
-                newDefinitions.Add(new StageDefinition { Columns = (int)Math.Floor(existing.Columns / 2f) });
+                newDefinitions.Add(new StageDefinition { Columns = existing.Columns / 2 });
+                newDefinitions.Add(new StageDefinition { Columns = existing.Columns / 2 });
             }
 
             mrc.Beatmap.Stages = newDefinitions;