Players · B · 1B · 2009 regular season
Aaron Bates
- Age
- 25
- B/T
- R/R
- Height
- 6' 4"
- Weight
- 230 lb
- Number
- #75
- Born
- March 10, 1984 in New York, NY, United States
- MLB debut
- July 6, 2009
- dbWAR
- .1 Regular season, 1 season(s)
- PA
- 12
- AVG
- .364
- OBP
- .417
- SLG
- .545
- wRC+
- 159 100 = avg
Aaron Bates was a first baseman for the Boston Red Sox. In 2009 he hit 0 home runs and knocked in 2 RBIs, notching 4 hits across 12 plate appearances in 5 games. His batting average was .364, 38.6% higher than the league average of .262. He reached base at a .417 clip and slugged .545, for an OPS of .962, 28.2% higher than the league mark of .751. He made contact on 73.9% of his swings. Adjusted for his ballpark and league, his 159 wRC+ puts his offence 59% above average. That comes to 0.1 dbWAR — +0.9 runs with the bat, -0.0 for the ballpark, -0.0 on the bases, -0.2 for the position he plays, against replacement level. It includes no fielding: defensive runs are proprietary and are not estimated here, so the figure credits playing a demanding position but not playing it well.
League context
Percentile among qualified batters, 2009 regular season.
How the WAR is built
Runs above replacement, 2009. These terms sum to +1.0 runs, divided by runs-per-win to give WAR. There is no fielding term.
Batting Regular season
Standard and advanced, by season. Regular-season games only.
| Trend | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2009 | BOS | 5 | 12 | 4 | 0 | 2 | 0 | 1 | 4 | .364 | .417 | .545 | .182 | .571 | 8.3% | 33.3% | .424 | +0.9 | 159 | 0.1 | — |
Platoon splits
How he hits left- and right-handed pitching.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHP | 6 | 6 | 2 | 0 | 0 | 3 | .333 | .333 | .667 | .428 | 50.0% |
| vs RHP | 6 | 5 | 2 | 0 | 1 | 1 | .400 | .500 | .400 | .420 | 16.7% |
Spray chart
Where every ball he put in play landed, 2009.
Loading 6 batted balls…
Hot and cold zones
Batting average by pitch location, 2009.
Situational hitting
How Aaron Bates hits by base state, outs, score and late-game pressure — each read against his own season line.
| Situation | PA | AB | H | HR | RBI | BB | SO | AVG | OBP | SLG | wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|
| All situations | 12 | — | — | — | — | — | — | .364 | .417 | .545 | .424 |
| Bases empty · thin | 4 | 4 | 0 | 0 | 0 | 0 | 2 | .000 | .000 | .000 | .000 |
| Runner on first · thin | 4 | 4 | 3 | 0 | 1 | 0 | 0 | .750 | .750 | 1.250 | .867 |
| Runners on · thin | 8 | 7 | 4 | 0 | 2 | 1 | 2 | .571 | .625 | .857 | .636 |
| RISP · thin | 4 | 3 | 1 | 0 | 1 | 1 | 2 | .333 | .500 | .333 | .405 |
Runners on includes runners in scoring position, which is the convention every reference uses. Rows under 25 plate appearances are marked thin — at that size a rate moves several dozen points on one hit. Counted from play-by-play, 2009.
Not in the 2009 data: exit velocity and launch angle, first recorded in 2015. The play-by-play goes back to 2005, but the measurements on each pitch and batted ball arrived later, so the panels built from them are left off this season.
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wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.