Players · K · Pitcher · 2005 regular season
Dae-Sung Koo
- Age
- 36
- B/T
- L/L
- Height
- 6' 1"
- Weight
- 185 lb
- Born
- August 2, 1969 in Daejeon, South Korea
- MLB debut
- April 4, 2005
- dbWAR
- .3 Regular season, 2 season(s)
- IP
- 23.0
- ERA
- 3.91
- FIP
- 4.11
- K/9
- 9.0
- FIP−
- 96 100 = avg
Dae-Sung Koo was a relief pitcher for the New York Mets. In 2005 he struck out 23 batters over 23.0 innings across 33 appearances, going 0-0. His ERA of 3.91 was 8.8% lower than the league average of 4.29 — 7th of 15 on his team, and 177th of 442 among MLB pitchers with 20+ innings. Stripping out defence, his 4.11 FIP suggests the ERA was no fluke. He missed bats on 19.0% of swings (7.5% of every pitch he threw), walked 12.3% of the batters he faced and struck out 21.7%. His 0.2 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, 2005 regular season.
Pitching Regular season
Standard and advanced, by season. Regular-season games only.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2005 | NYM | 33 | 0 | 23.0 | 0 | 0 | 0 | 22 | 10 | 23 | 13 | 3.91 | 4.11 | 1.52 | 9.0 | 5.1 | 91 | 96 | 0.2 | — |
Batting Regular season
Standard and advanced, by season. Regular-season games only.
| Trend | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2005 | NYM | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | .500 | .500 | 1.000 | .500 | 1.000 | 0.0% | 50.0% | .640 | +0.5 | 314 | 0.1 | — |
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 | 58 | 46 | 11 | 1 | 9 | 14 | .239 | .379 | .348 | .339 | 24.1% |
| vs RHB | 48 | 42 | 11 | 1 | 4 | 9 | .262 | .313 | .429 | .313 | 18.8% |
Spray chart
Where every ball he put in play landed, 2005.
Loading 1 batted balls…
Not in the 2005 data: pitch types, recorded in every park from 2008. 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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Similar players
Nearest 2005 seasons by command, run prevention and role, on rate statistics rather than totals.
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.