USSA Legal for Masters and U21-U14 Athletes:173: 104-65-88 (21m radius) 166: 105-65-89 (18.5m radius) 159: 104-64-87 (17.2m radius) 152: 101-64-85 (17.2m radius) USSA Legal for U12 Athletes:145: 104-64-87 (14.2m radius)