Within-series momentum in hockey: No returns for running up the score

Drawing on data from 916 Division 1 men’s college hockey games played during a recent six-year period in the Western Collegiate Hockey Association (WCHA), we find evidence that positive momentum within 458 two-game series does not exist when controlling for team quality. We find that neither victory nor the margin of victory in Game 1 of a two-game series is predictive of the outcome of Game 2. We suggest that loss aversion should be considered in relation to questions of momentum.