It took me maybe an half an hour to make Bronze at the start of my first game. After I got to 100% I went back to get gold, and as phattboy said, it took an hour or less to make gold on the Bs.
the reward isnt great enough.. so i havent even really tried that much.... i got all golds on b except 8 in which i have a silver.. i got beat by about .012 and i was super pissed
