Related Clues:

• 5K, for one
• Human ___
• Quickness contest
• Hearts and minds can do it
• Dash or marathon
• Word with "human" and "rat"
• 5K, say
• Indy 500, e.g.
• Iditarod, for one
• Where 'They're off!' may be heard
• Did a time trial
• Sprint, for one
• Participated in a marathon
• Sprint or dash
• Marathon or 10K