You guys have photo evidence of 6 teams and the starting line and the race barley began!!!
I tried to connect the starting line photo to the race photos and see what teams we got:
1-Yellow – M/F, Brian & Erica (photo)
2-Light blue- F/M , Jessica & Older man(photo)
3-Light green - ?/? , Sandy blonde guys? , possible geek team
4-Burgendy – M/F
5-Orange – M/M
6-Teal – F/? , Vegas girls? , possible blonde team
7-Grey – M/F
8-Red- M/M
9-Khaki-M/F Mikka & Blonde woman (photo)
10-Purple – F/F, Maria & Tiffany (photo)
11-Dark blue - M/M , Nate & Herbert (photo)
12-Black/White - F/F