Players · T · Pitcher · 2012 regular season
Yoshinori Tateyama
- Age
- 37
- B/T
- R/R
- Height
- 5' 10"
- Weight
- 165 lb
- Number
- #22
- Born
- December 26, 1975 in Osaka, Japan
- MLB debut
- May 24, 2011
- dbWAR
- .1 Regular season, 2 season(s)
- IP
- 17.0
- ERA
- 9.00
- FIP
- 5.09
- K/9
- 9.5
- FIP−
- 127 100 = avg
Yoshinori Tateyama was a relief pitcher for the Texas Rangers. In 2012 he struck out 18 batters over 17.0 innings across 14 appearances, going 1-0. His ERA of 9.00 was 124.2% higher than the league average of 4.01. Stripping out defence, his 5.09 FIP suggests he pitched better than his ERA shows. He missed bats on 15.0% of swings (6.8% of every pitch he threw), walked 7.9% of the batters he faced and struck out 23.7%. His -0.1 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.
League context
Percentile among qualified pitchers, 2012 regular season.
WAR by season
Pitching Regular season
Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.
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 pitching
| Season | Team | Round | G | GS | IP | W | L | SV | H | ER | HR | BB | SO | ERA | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2011 Post | TEX | ALCS | 1 | 0 | 0.2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0.00 | 1.50 | 0.0 |
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 left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 35 | 30 | 9 | 4 | 5 | 7 | .300 | .400 | .800 | .497 | 20.0% |
| vs RHB | 41 | 40 | 9 | 0 | 1 | 11 | .225 | .244 | .275 | .231 | 26.8% |
Pitch sequencing
What Yoshinori Tateyama throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Yoshinori Tateyama throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Sinker | 160 | 87.0 | 2,021 | 51.9% | 10.5% | 43 | .302 | .999 | |
| Curveball | 80 | 70.9 | 1,928 | 48.8% | 18.2% | 15 | .200 | .467 | |
| Slider | 32 | 75.7 | 1,338 | 50.0% | 31.6% | 8 | — | — | |
| Screwball | 15 | 69.1 | 1,117 | 26.7% | 20.0% | 4 | — | — |
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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.