Andy. What are the race number dimensions, esp #10? (Asking as pre-positioning own safety pins on a race suit as no assisted number pining allowed and no changing room privacy). Could be an event in i

http://davehaywardphotos.com/SERRL/SERRL-Winter-Series-2010-2011/Redbridge-circuit-31102010/14473765_srDJo#1074425839_zhdhU