diff --git a/data/challenges/hacienda.challenge b/data/challenges/hacienda.challenge
index 2ad4e300b..3dc3480fd 100644
--- a/data/challenges/hacienda.challenge
+++ b/data/challenges/hacienda.challenge
@@ -6,11 +6,11 @@
     
     <hard>
         <karts number="5"/>
-        <requirements position="1" time="152"/>
+        <requirements position="1" time="170"/>
     </hard>
     <medium>
         <karts number="4"/>
-        <requirements time="165"/>
+        <requirements time="185"/>
     </medium>
     <easy>
         <karts number="4"/>
diff --git a/data/challenges/islandtrack.challenge b/data/challenges/islandtrack.challenge
index f029ae2e2..7571e4e0b 100644
--- a/data/challenges/islandtrack.challenge
+++ b/data/challenges/islandtrack.challenge
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <challenge version="2">
     <track id="islandtrack" laps="3"/>
-    <mode major="single" minor="followtheleader"/>
+    <mode major="single" minor="quickrace"/>
     <requirements trophies="95"/>
     
     <hard>
diff --git a/data/challenges/mansion.challenge b/data/challenges/mansion.challenge
index 5cb16c55d..06cc9795e 100644
--- a/data/challenges/mansion.challenge
+++ b/data/challenges/mansion.challenge
@@ -6,14 +6,14 @@
      
     <hard>
         <karts number="5"/>
-        <requirements time="110"/>
+        <requirements time="130"/>
     </hard>
     <medium>
         <karts number="4"/>
-        <requirements time="120"/>
+        <requirements time="145"/>
     </medium>
     <easy>
         <karts number="4"/>
-        <requirements time="145"/>
+        <requirements time="160"/>
     </easy>
 </challenge>
diff --git a/data/challenges/snowpeak.challenge b/data/challenges/snowpeak.challenge
index 1484bbadb..8e03d2459 100644
--- a/data/challenges/snowpeak.challenge
+++ b/data/challenges/snowpeak.challenge
@@ -6,11 +6,11 @@
     
     <hard>
         <karts number="5"/>
-        <requirements position="1" time="137"/>
+        <requirements position="1" time="152"/>
     </hard>
     <medium>
         <karts number="4"/>
-        <requirements time="150"/>
+        <requirements time="175"/>
     </medium>
     <easy>
         <karts number="4"/>
diff --git a/data/challenges/xr591.challenge b/data/challenges/xr591.challenge
index 8d8863a14..4ec3a78a9 100644
--- a/data/challenges/xr591.challenge
+++ b/data/challenges/xr591.challenge
@@ -6,15 +6,15 @@
     
     <hard>
         <karts number="1"/>
-        <requirements energy="16" time="150"/>
+        <requirements energy="16" time="140"/>
     </hard>
     <medium>
         <karts number="1"/>
-        <requirements energy="14" time="160"/>
+        <requirements energy="14" time="155"/>
     </medium>
     <easy>
         <karts number="1"/>
-        <requirements energy="12" time="165"/>
+        <requirements energy="12" time="170"/>
     </easy>
 </challenge>