Luigi's Island- 1:59.474
Sunset Forest- 2:24.694
Mushroom Peaks- 3:57.984
GBA Sky Garden- 2:46.936
Rezway- 2:22.944
GCN Rainbow Road- 3:51.866
Haunted Woods- 3:02.954
ASDF Course- 1:04.443
Penguin Canyon- 2:03.022
Fishdom Island- N/A
Incendia Castle- 3:38.814
GBA Rainbow Road- 3:17.044
Space Road- N/A
SNES Bowser Castle 2- 2:57.505
SNES Rainbow Road- 2:48.085
Green Hill Zone- 1:46.033
Codename: BIGBOX- 1:26.675
N64 Royal Raceway- 3:20.800
Northpole Slide- N/A
GBA Cheep Cheep Island- 1:38.332
N64 Yoshi Valley- 3:22.306
Wario's Lair- 3:47.364
Thwomp Cave- 2:09.595
Jungle Safari- 3:14.186
Kartwood Creek- 2:06.610
SNES Mario Circuit 1- 1:27.452
Chomp Valley- N/A
DS Airship Fortress- 2:33.794

I will keep you updated as I get new times. P.S Custom Tracks are long, which is why these times are high.