Definition: The Master's Division in running is for runners who are over a certain age. Unfortunately that age is not standardized. In some places, the minimum age for a master's division runner is 35; in other places, it can be 50. The Masters Track and Field Committee of USA Track and Field (USTAF) bylaws say that a masters athlete "shall be at least 40 years old on the first day of the meet." Most races advertise the age for master's division on the race sign up. Otherwise, it's a good idea to ask.
Pronunciation: mass-ters
Examples: Brad couldn't wait until his 40th birthday, so he could register in the master's division at his next race.
