My MK (NOT MK64. My friend can destroy me in MK64 Battle... but in Racing I beat him 9/10 times.) Battle record is undefeated too. I would NOT be afraid to play you... if I lived by you. In my school, no one is realy that good at any Mario Kart game.
Of course, what I like to do when I go to someone's house is put in their MK64 cartridge if they have one, and go a 0:30.00 or something like that on Frappe Snowland 3-lap. Makes them wonder what happened.
Back on topic. SMW? Na, I was never a HUGE SMW Speed Run fan, but I did do SMW2 Speed Runs for a while. I THINK my best times on some courses (If you want to beat them) Are:
Marching Milde's Fort (100) - 7'11"86
Marching Milde's Fort (Any score) - 6'36"11
Run Like the Wind (Any score) - 57"39
Beware the Spinning Logs (100) - 1'19"96
Tap Tap the Red Nose's Fort (Any score) - 4'58"02
Those are a few of my favorite Speed Run courses. I don't know if those are my EXACT times... I'll find my recording sheets somewhere.
I have 3 categories: Any score clearing, 80+ clearing, and 100 clearing.
I can't remember my 80+ times for any level.
Everyone has their own opinions, no matter how WRONG they are.