marathon

noun 0.770

marathoner

noun 0.734

half marathon

noun 0.730

ultra

noun 0.626

road race

noun 0.593

enduro

noun 0.587

obstacle race

noun 0.569

stage race

noun 0.565

triathlon

noun 0.562

ultralight

noun 0.555

footrace

noun 0.552

ultralente

noun 0.551

cross country

noun 0.547

thru-hike

noun 0.543

walkathon

noun 0.542

ultrashort

noun 0.540

ultrarich

noun 0.529

endurance

noun 0.527

ironman

noun 0.525

running day

noun 0.525

ultraproduct

noun 0.524

long track

noun 0.524

run-walk

noun 0.523

extreme sport

noun 0.520

ultraviolet

noun 0.519

ultramarine

noun 0.516

relay race

noun 0.516

long run

noun 0.513

runner

noun 0.513

overexercise

noun 0.512

long haul

noun 0.504

forced march

noun 0.503

ultra high frequency

noun 0.502

thru-hiker

noun 0.502

outrun

noun 0.501

country mile

noun 0.500

biathlon

noun 0.500