Table 3.

Effect of travel direction on the impact of jet lag on away offensive performance

Away jet lag
OffenseWestWest P valueAverageEastEast P value
At-bats−0.047 ± 0.1170.68535.086 ± 0.0200.019 ± 0.1290.883
Singles−0.021 ± 0.0750.38756.131 ± 0.013−0.02 ± 0.0820.403
Doubles−0.029 ± 0.0380.2211.802 ± 0.0070.03 ± 0.0420.766
Triples0.01 ± 0.0120.8080.179 ± 0.002−0.016 ± 0.0130.099
Home runs−0.00004 ± 0.0290.49951.029 ± 0.005−0.001 ± 0.0320.491
Walks−0.03 ± 0.0570.2953.303 ± 0.0100.019 ± 0.0630.621
Strikeouts−0.077 ± 0.0740.85056.795 ± 0.0130.043 ± 0.0810.297
Stolen bases0.018 ± 0.0250.7630.637 ± 0.0040.003 ± 0.0280.544
Caught stealing0.001 ± 0.0140.46050.285 ± 0.002−0.028 ± 0.0160.96
Stolen base attempts0.019 ± 0.0290.7470.922 ± 0.005−0.025 ± 0.0320.222
Sacrifice hits−0.058 ± 0.0160*0.340 ± 0.003−0.015 ± 0.0180.198
Sacrifice flies−0.01 ± 0.0150.2350.286 ± 0.003−0.031 ± 0.0160.029*,
Grounded into double plays−0.011 ± 0.0230.6850.796 ± 0.0040.01 ± 0.0260.352
  • Away jet lag shows regression coefficients indicating effects on away offensive performance. Regression coefficients are adjusted for team effects. Parameters are expressed on a per game basis with error indicates SE of the estimated effect. P values are one tailed, derived from the regression analysis testing whether jet lag adversely impacts performance.

  • * Metrics where P < 0.05.

  • Does not pass FDR < 0.2. Average is over all 46,535 games.