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Earlier this week I looked at how MLB starting pitchers do as they work deeper into games and face hitters for the second, third, and fourth time in a game. Here are some of the key pieces of information from that post:
Results for each time they face a batter in a game (2000-2013):
Plate Appearance | AVG | OBP | SLG | OPS | K/9 | BB/9 | HR/9 | ERA |
Batter's 1st of game | .256 | .320 | .405 | .726 | 7.19 | 3.05 | 1.01 | 4.25 |
Batter's 2nd of game | .269 | .331 | .431 | .762 | 6.38 | 3.06 | 1.12 | 4.43 |
Batter's 3rd of game | .280 | .343 | .454 | .797 | 5.84 | 3.21 | 1.24 | 4.78 |
Batter's 4th+ of game | .281 | .344 | .439 | .782 | 5.44 | 3.23 | 1.07 | 4.35 |
Here's the same data, but for only 2013:
Plate Appearance | AVG | OBP | SLG | OPS | K/9 | BB/9 | HR/9 | ERA |
Batter's 1st of game | .250 | .309 | .390 | .699 | 7.92 | 2.74 | 0.94 | 3.85 |
Batter's 2nd of game | .259 | .319 | .411 | .730 | 7.12 | 2.86 | 1.04 | 4.05 |
Batter's 3rd of game | .270 | .331 | .429 | .760 | 6.48 | 3.00 | 1.08 | 4.28 |
Batter's 4th+ of game | .266 | .324 | .405 | .729 | 6.18 | 2.83 | 0.93 | 3.79 |
As you can see, the results get noticeably worse during the second time through the order, and worse again during the third time through the order. The results actually improve during the fourth time through the order, which might seem odd, but makes sense in the context of which pitchers are being allowed to face a lineup for a fourth time.
The average MLB start in 2013 included 24.98 batters faced. That's two batters short of three full trips through the lineup. A pitcher is almost always going to face a lineup twice, and will usually face most of it for a third time. Facing a lineup for a fourth time is rare though, and probably means a pitcher is on his game that day. So, it isn't that pitchers get better during that fourth time against a lineup, it's that the results you see come from a biased pool of players.
Starting pitchers faced 44,874 batters having their 1st PA of a game in 2013. They faced 42,234 having their 2nd PA of the game, a 5.9% decline (some of which is due to pitchers being pinch hit for. If you look at the decline for AL starters only, it's just 3.7%). The total falls to 31,294 batters in their 3rd PA, a decline of 25.9%. There were just 3,050 batters faced in their 4th PA, a massiv 90.3% drop from the 3rd PA total.
Among active starters with 50+ IP against batters in their 4th PA, here are some leaders:
ERA
- Adam Wainwright (1.45 ERA in 74.2 innings)
- CC Sabathia (2.61 ERA in 196.2 innings)
- Zack Greinke (2.95 in 58 innings)
K/9
- Jake Peavy (9.5 K/9 in 61.2 innings)
- Tim Lincecum (8.3 K/9 in 64.1 innings)
- Justin Verlander (8.0 K/9 in 99.1 innings)
OPS against
- Adam Wainwright (.537 in 74.2 innings)
- CC Sabathia (.652 in 196.2 innings)
- Justin Verlander (.666 in 99.1 innings)
Plate Appearance | Batters Faced | AVG | OBP | SLG | OPS | K/9 | BB/9 | HR/9 | ERA |
Batter's 1st of game | 287 | .232 | .317 | .384 | .701 | 9.8 | 4.4 | 1.1 | 3.48 |
Batter's 2nd of game | 281 | .230 | .296 | .365 | .662 | 9.4 | 3.3 | 0.8 | 3.33 |
Batter's 3rd of game | 196 | .257 | .347 | .329 | .676 | 9.2 | 4.5 | 0.2 | 2.86 |
Batters 4th+ of game | 13 | w | h | o | c | a | r | e | s |
Plate Appearance | Batters Faced | AVG | OBP | SLG | OPS | K/9 | BB/9 | HR/9 | ERA |
Batter's 1st of game | 261 | .292 | .346 | .488 | .834 | 9.8 | 3.1 | 1.4 | 5.46 |
Batter's 2nd of game | 253 | .231 | .286 | .333 | .619 | 8.8 | 2.3 | 0.7 | 3.16 |
Batter's 3rd of game | 152 | .259 | .316 | .439 | .755 | 9.3 | 2.8 | 1.3 | 3.25 |
Batters 4th+ of game | 6 | w | h | o | c | a | r | e | s |
Plate Appearance | Batters Faced | AVG | OBP | SLG | OPS | K/9 | BB/9 | HR/9 | ERA |
Batter's 1st of game | 260 | .219 | .319 | .313 | .632 | 9.9 | 4.4 | 0.7 | 3.69 |
Batter's 2nd of game | 252 | .191 | .285 | .232 | .517 | 9.0 | 3.9 | 0.1 | 2.00 |
Batter's 3rd of game | 231 | .259 | .339 | .405 | .744 | 8.6 | 2.8 | 1.0 | 5.16 |
Batters 4th+ of game | 46 | .262 | .311 | .333 | .644 | 6.5 | 1.6 | 0.8 | 4.09 |
Plate Appearance | Batters Faced | AVG | OBP | SLG | OPS | K/9 | BB/9 | HR/9 | ERA |
Batter's 1st of game | 220 | .259 | .309 | .418 | .727 | 6.9 | 2.3 | 1.0 | 3.52 |
Batter's 2nd of game | 206 | .267 | .312 | .377 | .689 | 9.1 | 2.0 | 0.7 | 3.65 |
Batter's 3rd of game | 146 | .312 | .349 | .493 | .842 | 9.2 | 1.8 | 1.3 | 5.24 |
Batters 4th+ of game | 16 | w | h | o | c | a | r | e | s |
Plate Appearance | Batters Faced | AVG | OBP | SLG | OPS | K/9 | BB/9 | HR/9 | ERA |
Batter's 1st of game | 218 | .208 | .261 | .337 | .598 | 7.0 | 2.2 | 0.7 | 3.00 |
Batter's 2nd of game | 211 | .246 | .336 | .404 | .741 | 6.8 | 4.6 | 0.7 | 3.86 |
Batter's 3rd of game | 144 | .338 | .403 | .508 | .910 | 6.7 | 3.3 | 1.2 | 4.85 |
Batters 4th+ of game | 6 | w | h | o | c | a | r | e | s |
Plate Appearance | Batters Faced | AVG | OBP | SLG | OPS | K/9 | BB/9 | HR/9 | ERA |
Batter's 1st of game | 91 | .214 | .275 | .393 | .668 | 13.1 | 2.8 | 1.6 | 4.37 |
Batter's 2nd of game | 86 | .179 | .247 | .244 | .491 | 10.6 | 2.9 | 0.4 | 1.23 |
Batter's 3rd of game | 31 | .333 | .355 | .533 | .888 | 6.4 | 1.3 | 1.3 | 2.57 |
Batters 4th+ of game | 3 | w | h | o | c | a | r | e | s |
Plate Appearance | Batters Faced | AVG | OBP | SLG | OPS | K/9 | BB/9 | HR/9 | ERA |
Batter's 1st of game | 63 | .321 | .365 | .464 | .829 | 5.4 | 3.4 | 0.0 | 6.75 |
Batter's 2nd of game | 63 | .373 | .403 | .610 | 1.013 | 3.5 | 2.1 | 2.1 | 9.00 |
Batter's 3rd of game | 40 | .500 | .564 | .688 | 1.252 | 9.0 | 7.5 | 1.5 | 13.50 |
Batters 4th+ of game | 2 | w | h | o | c | a | r | e | s |