Otto Walker rode 200 miles in 2 hours, 32 minutes, and 58 seconds for an average speed of 78.4 miles per hour, breaking the previous record. On the same day, he broke his own record for the 300-mile race with the fastest time of 3 hours, 5 minutes, and 45 seconds with an average speed of at 76.27 miles per hour. July 3 was quite a day for Otto Walker. Not only did he win two races with record-breaking times, it was also his 25th birthday. Harley-Davidson did well for itself, too. Its riders won 1st, 2nd, 4th, 5th, 6th and 7th places in the 300-mile race.