 However, because a team's record may not reflect its true talent due to luck, different measures of a team's talent were developed.First-order wins, based on pure run differential, are the number of expected wins generated by the "pythagenport" formula (see above).In addition, to further filter out the distortions of luck, Sabermetricians can also calculate a team's "expected" runs scored and allowed via a runs created-type equation (the most accurate at the team level being Base Runs).