Today's "World Record Day" special one-off track meet in Valencia, Spain really lived up to its namesake.
Breakout superstar Joshua Cheptegei took on the 10,000m world record, set way back in 2005 by Kenenisa Bekele. Meanwhile, 22-year-old phenom Letesenbet Giday delivered arguably the most surprising performance of this very strange track season by crushing the women's 5,000m world record.
NN Running Day was a weird and wonderful event, featuring just these two staged world record attempts. Alex Cyr and Michael Doyle unpack all the action, and discuss legacies, witnessing history in the making, and if running should stage more of these sorts of events in the future.