By Ben Ulene
After this year’s World Series ended in a Game 5 comeback win for the Royals, plenty of questions remain about what caused the Mets – who almost nobody  predicted would go home after just five games – to lose so quickly. While sloppy defense certainly contributed to their collapse, an even bigger liability was their offense, which only managed a meager 7 extra-base hits in the series.
Should we be surprised that the same team that had excelled at the plate during the NLCS, putting up 21 runs in a four-game sweep of the Cubs , could only manage 10 runs over their four losses to Kansas City? Probably not; as the statistics show, the Mets not only came into the World Series with a historically weak offense, but they also were up against a Kansas City bullpen that dominated games like perhaps no other bullpen before.
|2015 Mets Offense|
|Statistic||Value||All-Time Rank (out of 202 W.S. teams since 1914)|
|R / Game||4.22||177th|
First, the Mets’ offense, for a pennant-winning team, had been weak throughout the regular season. The team’s .244 regular season batting average was the fourth-worst of any World Series team since 1914; on top of that, their 1,290 regular season strikeouts were more than any other pennant-winner aside from the 2013 Red Sox (who more than compensated with a .277 regular season team average).
The Mets’ regular season mark of 4.22 runs per game was also the third-lowest of any World Series team in the last twenty years – and the only two to score less played each other (the 2014 Royals and Giants).
Perhaps most strikingly, the team’s OPS+ for the season – a statistic that measures a team’s OPS (on-base percentage + slugging percentage) relative to the rest of the league, with 100 being the league average – was 97, putting it below average in the big leagues this year. Only 23 other teams have ever made it to the World Series with an OPS+ of 97 or lower; of those, only 9 managed to win the series, and none since the 1997 Florida Marlins.
All in all, this was not an offense that anybody should have expected to put up huge numbers against any pitching staff in the World Series.
|2015 Royals Bullpen|
|Statistic||Value||All-Time Rank (out of 202 WS teams since 1914)|
The Mets weren’t just facing any ordinary pitching unit in the World Series, however, but rather one with a historically dominant bullpen for a World Series team.
Not only did the Royals bullpen hold opposing batters to a .214 average during the regular season, the 8th lowest for any pennant-winning club, but simultaneously posted a 2.63 strikeout-to-walk ratio, the 6th best regular season mark for a World Series team. The bullpen also maintained a 2.72 ERA during the regular season, the lowest for any World Series team since the 1990 Oakland A’s.
More complex statistics also reflect the dominance of the Royals’ bullpen. Its tOPS+ against – which reflects opposing hitters’ OPS relative to how they hit against starting pitching – was 78 (the 4th lowest for a World Series bullpen), making the Royals’ bullpen one of the best all-time at shutting down opposing offenses mid-game. And the bullpen’s sOPS+ against – which reflects opposing hitters’ OPS relative to the average OPS of hitters across the league – was 80, highlighting the bullpen’s excellence at shutting down hitters entirely.
While all of these numbers are impressive, what will go in the history books is how manager Ned Yost used his bullpen, which was a lot. The Royals’ bullpen pitched 539 2/3 innings this season, more than any other pennant-winning team in history. It’s not surprising that winning teams generally pitch their bullpens less than average, since more bullpen innings generally signifies bad starting pitching; in the Royals’ case, however, their bullpen was just really effective.
During the World Series, Royals relievers pitched 23 2/3 innings, compared to their starters’ 28 1/3. Take away Franklin Morales’s 6th inning implosion in Game 3, and the numbers are staggering: 1 run and 14 hits in just over 23 innings (an ERA of 0.39), with 4 walks and 30 strikeouts. And given just how dominant those relievers had been all year – and how susceptible to offensive slumps the Mets had been – the Royals’ dominant and decisive showing might just have been a foregone conclusion.