It's also hugely popular among football fans because it provides a single set of familiar benchmarks for them to compare the new class of college players with current stars and historic greats (who's faster, Saquon Barkley or Ezekiel Elliott? Check out their "simulcam" 40 times). Nonetheless, many analysts are critical of Combine events--often derided as the "Underwear Olympics" due to the athletes' ensembles--as predictors of future NFL success, noting that players are unlikely to run 40 yards in a straight line (the 40-yard dash), repeatedly lift 225 lbs. So that begs the question--just how well does Combine performance predict NFL success? To test the usefulness of using only Combine results for forecasting a player's future performance, we've created two models to predict two different measures of players' football "quality": Approximate Value (AV score) and draft quintile.