




| ■ | USATF "Gold Standard" is measurement by bicycle equipped with a calibrated Jones Riegel meter. | 
| ■ | GPS is too inaccurate; not currently acceptable under USATF guidelines. | 
| ■ | Measuring wheels tend to yield short courses. | 
| ■ | Online mapping tools are great for rough course layout but don't yield accurate length. | 
| ■ | View sample course map | 
