Joined: Dec 2004
Posts: 12,537
Likes: 791
From: Middle of da Mitten
Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Catrike Speed
Um... 200km is 200 kilometers, or 200 thousand meters, which is 2 metric centuries or about 124 miles. So OP did not say it wrong.
Sounds like a bit of chafing, possibly exacerbated by a little jock itch.