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Bobby Kielty headshot

Players · K · RF · 2007 regular season

Bobby Kielty

Age
31
B/T
S/R
Height
6' 1"
Weight
225 lb
Number
#23
Born
August 5, 1976 in Moreno Valley, CA, United States
MLB debut
April 10, 2001

Compare with…

dbWAR
.8
Regular season, 2005–2007 only
PA
101
AVG
.218
OBP
.287
SLG
.287
wRC+
49
100 = avg

Bobby Kielty was a right fielder for the Boston Red Sox. In 2007 he hit 1 home run and knocked in 12 RBIs, notching 19 hits across 101 plate appearances in 32 games. His batting average was .218, 18.5% lower than the league average of .268. He reached base at a .287 clip and slugged .287, for an OPS of .574, 24.3% lower than the league mark of .758 — the worst on his team, and 417th of 439 among MLB batters with 100+ plate appearances. He made contact on 65.9% of his swings. Adjusted for his ballpark and league, his 49 wRC+ puts his offence 51% below average. That comes to -0.4 dbWAR — -6.0 runs with the bat, -0.3 for the ballpark, -0.1 on the bases, +0.1 on double plays, -1.0 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, 2007 regular season.

wRC+49
wOBA.264
ISO.069
BB%7.9%
WAR-.4

How the WAR is built

Runs above replacement, 2007. These terms sum to -4.5 runs, divided by runs-per-win to give WAR. There is no fielding term.

Batting-6.0Ballpark-0.3Baserunning-0.1Double plays+0.1Position-1.0Replacement+2.9
BattingBallparkBaserunningDouble playsPositionReplacement

WAR by season

0.70.1-0.4050607

Batting Regular season

Standard and advanced, by season. Regular-season games only — postseason games are listed separately below. Seasons on file run 2005–2007; his career began in 2001, and earlier seasons are not in this data yet.

Trend
2007BOS/OAK32101191120826.218.287.287.069.2817.9%25.7%.264-6.049-0.4
2006OAK792977383622249.270.329.441.170.3047.4%16.5%.338+0.41030.7
2005OAK11643399105735067.263.350.395.133.29511.5%15.5%.334+1.31010.6

Separate from the regular season

Postseason Postseason

Wild Card through World Series. These games are counted on their own: none of them are in the regular-season tables, career totals, league context, leaderboards or dbWAR on this page.

Postseason batting

Postseason Bobby Kielty's postseason batting, by October and round. Not part of any regular-season figure on this page.
SeasonTeamRoundGPAABRH2B3BHRRBIBBSOSBAVGOBPSLGOPS
2007 PostBOSPostseason total376230013120.500.5711.0001.571
ALCS265120002120.400.500.400.900
World Series1111100110001.0001.0004.0005.000
2006 PostOAKALCS222000000000.000.000.000.000
2005–2007Postseason total · 2 Octobers598230013120.375.444.7501.194

Box-score and rate statistics only. wOBA, wRC+, FIP and dbWAR are measured against a full league season, and a postseason is a few teams playing each other for a month, so they are not computed for October.

Platoon splits

How he hits left- and right-handed pitching.

Batting by the hand the pitcher throws with, 2007. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHP6050130614.260.333.300.29323.3%
vs RHP413761212.162.220.270.22229.3%

Spray chart

Where every ball he put in play landed, 2007.

Loading 62 batted balls…

Hot and cold zones

Batting average by pitch location, 2007.

—————2 AB—2 AB—2 AB—1 AB—5 AB—3 AB—7 AB—4 AB—3 AB
Below averageLeague averageAbove average
Batting average by location of the pitch that ended each plate appearance, catcher's view. The bordered square is the strike zone; the outer band is chase territory. Cells with fewer than 8 at-bats are left grey rather than shown as signal. League average on the same attribution is .266.

Situational hitting

How Bobby Kielty hits by base state, outs, score and late-game pressure — each read against his own season line.

Split by
By who is on base when he comes up. The season line is repeated as the baseline.
SituationPAABHHRRBIBBSOAVGOBPSLGwOBA
All situations101——————.218.287.287.264
Bases empty4541800413.195.267.220.233
Runner on first252571205.280.280.400.297
Runners on564611112413.239.304.348.289
RISP3121401048.190.323.286.283

Runners on includes runners in scoring position, which is the convention every reference uses. Counted from play-by-play, 2007.

Not in the 2007 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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Bobby Kielty

Similar players

Nearest 2007 seasons by discipline, contact, power and speed, on rate statistics rather than totals.

How these are computed

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.