These are the world records from all 32 tracks, shortly after MKWorld released. Some crazy shortcuts and strategies have already been discovered!

0:00 Intro
0:16 Mario Bros. Circuit
2:20 Crown City
4:42 Whistlestop Summit
6:47 DK Spaceport
8:49 Desert Hills
10:32 Shy Guy Bazaar
12:37 Wario Stadium
14:58 Airship Fortress
17:15 DK Pass
19:38 Starview Peak
22:05 Sky-High Sundae
24:14 Wario Shipyard
27:50 Koopa Troopa Beach
29:37 Faraway Oasis
32:39 Peach Stadium
35:12 Peach Beach
37:05 Salty Salty Speedway
39:20 Dino Dino Jungle
43:57 Great ? Block Ruins
46:16 Cheep Cheep Falls
48:30 Dandelion Depths
51:03 Boo Cinema
53:22 Dry Bones Burnout
55:55 Moo Moo Meadows
58:07 Choco Mountain
1:00:28 Toad's Factory
1:02:35 Bowser's Castle
1:05:09 Acorn Heights
1:07:21 Mario Circuit
1:09:06 Rainbow Road
1:13:23 Outro