Players · M · Pitcher · 2024
James McArthur
- Age
- 28
- B/T
- R/R
- Height
- 6' 7"
- Weight
- 230 lb
- Number
- #66
- Born
- December 11, 1996 in New Braunfels, TX, United States
- MLB debut
- June 28, 2023
- Drafted
- 2018, round 12
- College
- Mississippi
- High school
- New Braunfels
- Salary, 2024
- $745,750
- dbWAR
- .9 2 season(s)
- IP
- 56.2
- ERA
- 4.92
- FIP
- 4.17
- K/9
- 7.8
- FIP−
- 102 100 = avg
James McArthur was a relief pitcher for the Kansas City Royals. In 2024 he struck out 49 batters over 56.2 innings across 57 appearances, going 5-7. His ERA of 4.92 was 20.7% higher than the league average of 4.08 — 13th of 15 on his team, and 410th of 541 among MLB pitchers with 20+ innings. Stripping out defence, his 4.17 FIP suggests he pitched better than his ERA shows. He missed bats on 28.3% of swings (13.4% of every pitch he threw), walked 5.7% of the batters he faced and struck out 19.8%. His 0.3 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, 2024.
WAR by season
Pitching
Standard and advanced, by season.
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 | 113 | 105 | 31 | 4 | 6 | 24 | .295 | .345 | .448 | .344 | 21.2% |
| vs RHB | 133 | 123 | 37 | 4 | 7 | 25 | .301 | .341 | .463 | .346 | 18.8% |
Pitch sequencing
What James McArthur throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
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Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Sinker | 321 | 95.1 | 2,283 | 41.7% | 13.7% | 99 | .323 | .834 | |
| Curveball | 304 | 83.7 | 2,782 | 50.0% | 36.7% | 71 | .268 | .720 | |
| Slider | 194 | 87.7 | 2,263 | 50.5% | 42.6% | 40 | .350 | .947 | |
| Four-Seam Fastball | 82 | 94.7 | 2,401 | 39.0% | 16.7% | 19 | .158 | .516 |
Head to head
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Similar players
Nearest 2024 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.