John Guenthner

Canton, MA, USA
  • Total Results 36
  • Total Events 4
Personal Records
  • 55mH (in) - 8.41
  • 110mH - 16.81
  • 300m (in) - 39.77
  • 400mH - 59.19

To see all performances, subscribe to

MileSplit Pro
Join Now

Performance Graph for Indoor 300 Meter Dash