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Study: West teams at a disadvantage due to jet lag

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Every year, when the schedules are released, we often hear about the teams that have it worst. Almost always, those teams are West teams. According to MLB.com, teams in the West division of their respective leagues had the top eight most travel-heavy schedules in 2016. The full list:

Team League Division Miles
Mariners AL West 47,704
Angels AL West 44,945
Athletics AL West 42,119
Rangers AL West 41,128
Dodgers NL West 40,294
Giants NL West 39,341
Astros AL West 38,553
Padres NL West 37,363
Rays AL East 36,916
Red Sox AL East 36,896
D-Backs NL West 35,312
Yankees AL East 35,252
Marlins NL East 35,226
Rockies NL West 33,287
Blue Jays AL East 32,895
Orioles AL East 32,322
Braves NL East 29,236
Royals AL Central 29,077
Twins AL Central 28,948
Phillies NL East 28,351
Mets NL East 26,832
White Sox AL Central 26,538
Cardinals NL Central 26,451
Pirates NL Central 26,134
Brewers NL Central 25,620
Tigers AL Central 25,450
Indians AL Central 25,176
Reds NL Central 25,108
Nationals NL East 24,664
Cubs NL Central 24,271

The averages by division:

  • AL East: 34,856 miles
  • AL Central: 25,176
  • AL West: 42,890
  • NL East: 28,862
  • NL Central: 25,517
  • NL West: 37,119

The maps aren’t up for 2017 yet, but rest assured that West teams will once again have it worst. It’s easy to see why, taking a look at the map on MLB.com. If you draw a line to split Texas in half and go straight up through North Dakota, there are only eight teams to the left of that line, leaving the other 23 condensed on the right side. When West teams aren’t playing intra-division games, they are traveling. That’s often not the case for East and Central teams. The Phillies and Pirates, for example, don’t even have to leave the state to play each other.

As Gizmodo points out, a study published today in the Proceedings of the National Academy of Sciences found a link between jet lag and performance. Sleep scientist Ravi Allada of Northwestern University analyzed 4,919 games, finding that teams that traveled East performed worse than those that traveled West. Allada and his colleagues adjusted for home field advantage and park effects.

Specifically, teams that traveled from the West to the East lost more often than East teams traveling West. They gave up more runs and scored less runs. They hit for a lower batting average, on-base percentage, and slugging percentage. They gave up more home runs, accounting for most of the decline in run prevention.

There was a peculiar finding. Allada found that jet lagged home teams performed worse than jet lagged visiting teams. He hypothesizes that “teams may be more cognizant of their schedules when traveling away, thus mitigating jet lag effects,” he told Gizmodo.

Justin Turner is a postseason monster

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A not-insignificant amount of the Dodgers’ success in recent years has to do with the emergence of Justin Turner. In his first five seasons with the Orioles and Mets, he was a forgettable infielder who had versatility, but no power. The Mets non-tendered him after the 2013 season, a move they now really regret.

In four regular seasons since, as a Dodger, Turner has hit an aggregate .303/.378/.502. His 162-game averages over those four seasons: 23 home runs, 36 doubles, 83 RBI, 80 runs scored. And he’s also a pretty good third baseman, it turns out. The Dodgers have averaged 95 wins per season over the past four years.

Turner, 32, has gotten better and better with each passing year. This year, he drew more walks (59) than strikeouts (56), a club only five other players (min. 300 PA) belonged to, and he trailed only Joey Votto (1.61) in BB/K ratio (1.05). He zoomed past his previous career-high in OPS, finishing at .945. His .415 on-base percentage was fourth-best in baseball. His batting average was fifth-best and only nine points behind NL batting champion Charlie Blackmon.

It doesn’t seem possible, but Turner has been even better in the postseason. He exemplified that with his walk-off home run to win Game 2 of the NLCS against the Cubs. Overall, entering Wednesday night’s action, he was batting .363/.474/.613 in 97 postseason plate appearances. In Game 4, he went 2-for-2 with two walks, a single, and a solo home run. That increases his postseason slash line to .378/.495/.659, now across 101 plate appearances. That’s a 1.154 OPS. The career-high regular season OPS for future first-ballot Hall of Famer Albert Pujols was 1.114 in 2008, when he won his third career MVP Award. Statistically, in the postseason, Turner hits slightly better than Pujols did in the prime of his career. Of course, we should adjust for leagues and parks and all that, but to even be in that neighborhood is incredible.

In the age of stats, the concept of “clutch” has rightfully eroded. We don’t really allow players to ascend to godlike levels anymore like the way we did Derek Jeter, for instance. (Jeter’s career OPS in the playoffs, by the way, was a comparatively pitiful .838.) Turner isn’t clutch; he’s just a damn good hitter whose careful approach at the plate has allowed him to shine in the postseason and the Dodgers can’t imagine life without him.