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Uploaded by livestrong on Jul 1, 2009
A celebrated American long-distance runner, Ryan Hall discusses how tempo runs are done and why they are the best gauge of marathon fitness and readiness.
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@WillingToPooNvm nice
EndlessStarfall 1 year ago
he just jogged around area 51
WillingToPooNvm 1 year ago
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@WillingToPooNvm nice
EndlessStarfall 1 year ago
he just jogged around area 51
WillingToPooNvm 1 year ago