From press release:
The 12th Annual Alpenrose Velodrome Challenge is set to happen July 15-17 at the Alpenrose Velodrome in Portland, Oregon. With a prize list of $13,000, this is one of the richest track races in the country. Starting at 1:00pm on Friday, elite women, men and masters 40+ will come to compete for a chance to win prestige and cash.
The Alpenrose Velodrome is one of only 20 bicycle racing tracks in the nation. With corners positioned at a 44-degree angle, racers must maintain a constant speed of 12.5 miles per hour in order to remain upright on the track, which won't be a problem for these world class athletes who will reach 40 mph at top speed. Besides boasting one of the steepest banks in the nation, the track is also unique in that it is made of concrete; most others are wooden.
The Alpenrose Velodrome Challenge is free for spectators and is located at 6149 Southwest Shattuck Road.