
Players · K · Pitcher · 2021 regular season
Kwang Hyun Kim
- Age
- 33
- B/T
- L/L
- Height
- 6' 2"
- Weight
- 195 lb
- Born
- July 22, 1988 in Seoul, South Korea
- MLB debut
- July 24, 2020
- dbWAR
- 1.7 Regular season, 3 season(s)
- IP
- 106.2
- ERA
- 3.46
- FIP
- 4.34
- K/9
- 6.8
- FIP−
- 102 100 = avg
Kwang Hyun Kim was a starting pitcher for the St. Louis Cardinals. In 2021 he struck out 80 batters over 106.2 innings across 27 appearances, 21 of them starts, going 7-7. His ERA of 3.46 was 18.9% lower than the league average of 4.27 — 8th of 19 on his team, and 178th of 567 among MLB pitchers with 20+ innings. Stripping out defence, his 4.34 FIP suggests that his ERA had some help behind him. He missed bats on 22.0% of swings (9.7% of every pitch he threw), walked 8.6% of the batters he faced and struck out 17.7%. His 1.0 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, 2021 regular season.
WAR by season
Pitching Regular season
Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.
Batting Regular season
Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.
| Trend | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | STL | 18 | 29 | 3 | 0 | 2 | 0 | 0 | 9 | .115 | .148 | .154 | .038 | .176 | 0.0% | 31.0% | .139 | -4.3 | -25 | 0.0 | — |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 Post | STL | Wild Card | 1 | 1 | 3.2 | 0 | 0 | 0 | 5 | 3 | 0 | 2 | 2 | 7.36 | 1.91 | 4.9 |
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 | 103 | 90 | 14 | 0 | 12 | 26 | .156 | .252 | .200 | .218 | 25.2% |
| vs RHB | 349 | 315 | 84 | 12 | 27 | 54 | .267 | .331 | .422 | .327 | 15.5% |
Spray chart
Where every ball he put in play landed, 2021.
Loading 19 batted balls…
Hot and cold zones
Batting average by pitch location, 2021.
Pitch sequencing
What Kwang Hyun Kim throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Kwang Hyun Kim throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Four-Seam Fastball | 731 | 89.1 | 2,131 | 39.5% | 10.8% | 156 | .295 | .802 | |
| Slider | 671 | 83.5 | 2,113 | 49.9% | 27.4% | 162 | .204 | .594 | |
| Changeup | 210 | 80.4 | 1,603 | 35.7% | 27.7% | 57 | .246 | .751 | |
| Curveball | 158 | 69.6 | 2,141 | 43.7% | 38.0% | 27 | .185 | .474 | |
| Sinker | 14 | 89.0 | 2,076 | 21.4% | 16.7% | 5 | — | — |
Compare Kwang Hyun Kim with…
Side by side with up to three others.
Similar players
Nearest 2021 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.



