diff --git a/osu.Game.Rulesets.Osu/Objects/Slider.cs b/osu.Game.Rulesets.Osu/Objects/Slider.cs
index 61056832e9..76439ca530 100644
--- a/osu.Game.Rulesets.Osu/Objects/Slider.cs
+++ b/osu.Game.Rulesets.Osu/Objects/Slider.cs
@@ -3,7 +3,6 @@
 
 using OpenTK;
 using osu.Game.Rulesets.Objects.Types;
-using System;
 using System.Collections.Generic;
 using osu.Game.Rulesets.Objects;
 using System.Linq;
@@ -120,14 +119,16 @@ namespace osu.Game.Rulesets.Osu.Objects
 
         private void createTicks()
         {
-            if (TickDistance == 0) return;
-
             var length = Curve.Distance;
-            var tickDistance = Math.Min(TickDistance, length);
+            var tickDistance = MathHelper.Clamp(TickDistance, 0, length);
+
+            if (tickDistance == 0) return;
 
             var minDistanceFromEnd = Velocity * 0.01;
 
-            for (var span = 0; span < this.SpanCount(); span++)
+            var spanCount = this.SpanCount();
+
+            for (var span = 0; span < spanCount; span++)
             {
                 var spanStartTime = StartTime + span * SpanDuration;
                 var reversed = span % 2 == 1;
diff --git a/osu.Game/Beatmaps/Formats/LegacyBeatmapDecoder.cs b/osu.Game/Beatmaps/Formats/LegacyBeatmapDecoder.cs
index 3e7b36f324..d58318994f 100644
--- a/osu.Game/Beatmaps/Formats/LegacyBeatmapDecoder.cs
+++ b/osu.Game/Beatmaps/Formats/LegacyBeatmapDecoder.cs
@@ -8,6 +8,7 @@ using OpenTK.Graphics;
 using osu.Game.Beatmaps.Timing;
 using osu.Game.Rulesets.Objects.Legacy;
 using osu.Game.Beatmaps.ControlPoints;
+using OpenTK;
 
 namespace osu.Game.Beatmaps.Formats
 {
@@ -319,7 +320,7 @@ namespace osu.Game.Beatmaps.Formats
                 beatmap.ControlPointInfo.TimingPoints.Add(new TimingControlPoint
                 {
                     Time = time,
-                    BeatLength = beatLength,
+                    BeatLength = MathHelper.Clamp(beatLength, 100, 60000),
                     TimeSignature = timeSignature
                 });
             }
diff --git a/osu.Game/Rulesets/Objects/Legacy/Osu/ConvertHitObjectParser.cs b/osu.Game/Rulesets/Objects/Legacy/Osu/ConvertHitObjectParser.cs
index 19f9a93976..d2a0530dd9 100644
--- a/osu.Game/Rulesets/Objects/Legacy/Osu/ConvertHitObjectParser.cs
+++ b/osu.Game/Rulesets/Objects/Legacy/Osu/ConvertHitObjectParser.cs
@@ -1,6 +1,7 @@
 // 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 OpenTK;
 using osu.Game.Rulesets.Objects.Types;
 using System.Collections.Generic;
@@ -29,7 +30,7 @@ namespace osu.Game.Rulesets.Objects.Legacy.Osu
                 Position = position,
                 NewCombo = newCombo,
                 ControlPoints = controlPoints,
-                Distance = length,
+                Distance = Math.Max(0, length),
                 CurveType = curveType,
                 RepeatSamples = repeatSamples,
                 RepeatCount = repeatCount