
P · 2021
Justus Sheffield
- Age
- 26
- B/T
- L/L
- Height
- 5' 10"
- Weight
- 224 lb
- Born
- May 13, 1996 in Tullahoma, TN, USA
- MLB debut
- September 19, 2018
Age shown as of the 2022 season.
- dbWAR
- .7 7 season(s)
- PA
- 2
- AVG
- .500
- OBP
- .500
- SLG
- .500
- wRC+
- 192 100 = avg
Justus Sheffield is a pitcher for the Seattle Mariners. In 2021 he hit 0 home runs and knocked in 0 RBIs, notching 1 hit across 2 plate appearances in 1 game. His batting average was .500, 105.1% higher than the league average of .244. He reached base at a .500 clip and slugged .500, for an OPS of 1.000, 37.4% higher than the league mark of .728. He averaged 98.0 mph off the bat, hit 100.0% of balls in play at 95 mph or better and made contact on 66.7% of his swings. Adjusted for his ballpark and league, his 192 wRC+ puts his offence 92% above average. That comes to 0.0 dbWAR — +0.2 runs with the bat, -0.0 on the bases, +0.0 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, 2021.
How the WAR is built
Runs above replacement, 2021. These four terms sum to +0.3 runs, divided by runs-per-win to give WAR.
WAR by season
Batting
Standard and advanced, by season.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | .500 | .500 | .500 | .000 | 1.000 | 0.0% | 50.0% | .438 | +0.2 | 192 | 0.0 | |
| 2019 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | .000 | .000 | .000 | .000 | — | 0.0% | 100.0% | .000 | -0.6 | -121 | -0.0 |
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 6 | 1 | 11.2 | 1 | 0 | 0 | 9 | 5 | 7 | 6 | 3.86 | 4.83 | 1.29 | 5.4 | 4.6 | 97 | 122 | -0.0 | |
| 2021 | 21 | 15 | 80.1 | 7 | 8 | 0 | 105 | 61 | 63 | 43 | 6.83 | 5.66 | 1.84 | 7.1 | 4.8 | 160 | 133 | -0.6 | |
| 2020 | 10 | 10 | 55.1 | 4 | 3 | 0 | 52 | 22 | 48 | 20 | 3.58 | 3.17 | 1.30 | 7.8 | 3.3 | 80 | 71 | 1.3 | |
| 2019 | 8 | 7 | 36.0 | 0 | 1 | 0 | 44 | 22 | 37 | 18 | 5.50 | 4.71 | 1.72 | 9.3 | 4.5 | 122 | 105 | 0.2 | |
| 2018 | 3 | 0 | 2.2 | 0 | 0 | 0 | 4 | 3 | 0 | 3 | 10.13 | 11.41 | 2.63 | 0.0 | 10.1 | 244 | 275 | -0.2 |
Platoon splits
How he hits left- and right-handed pitching.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHP | 2 | 2 | 1 | 0 | 0 | 1 | .500 | .500 | .500 | .438 | 50.0% |
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 94 | 80 | 21 | 2 | 12 | 17 | .263 | .362 | .400 | .340 | 18.1% |
| vs RHB | 292 | 253 | 84 | 12 | 31 | 46 | .332 | .409 | .549 | .410 | 15.8% |
Spray chart
Where every ball he put in play landed, 2021.
Loading 1 batted balls…
Contact quality
How hard and at what angle he hits it, over 1 tracked batted balls in 2021. Percentiles are against qualified batters.
- Barrel rate
- 0.0% 0 barrels
- Exit velocity
- 98.0 mph average
- Max exit velo
- 98.0 mph, hardest hit
- Hard hit
- 100.0% 95 mph or better
- Sweet spot
- 100.0% 8–32° launch
- Launch angle
- 13.0° average
A barrel is a batted ball whose exit velocity and launch angle have historically produced at least a .500 average and 1.500 slugging — 98 mph within 26–30°, widening to 8–50° by 116 mph. Reconstructed from Statcast's published anchor points, which reproduces them exactly; the interior is within a degree. Sweet spot (8–32°) is an exact definition.
Hot and cold zones
Batting average by pitch location, 2021.
Situational hitting
How Justus Sheffield hits by base state, outs, score and late-game pressure — each read against his own season line.
| Situation | PA | AB | H | HR | RBI | BB | SO | AVG | OBP | SLG | wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|
| All situations | 2 | — | — | — | — | — | — | .500 | .500 | .500 | .438 |
| Bases empty · thin | 1 | 1 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| Runner on first · thin | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 1.000 | .876 |
| Runners on · thin | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 1.000 | .876 |
Runners on includes runners in scoring position, which is the convention every reference uses. Rows under 25 plate appearances are marked thin — at that size a rate moves several dozen points on one hit. Counted from play-by-play, 2021.
Pitch sequencing
What Justus Sheffield throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Justus Sheffield throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2021.
| Sinker | 681 | 92.3 | 2,033 | 43.2% | 10.9% | |
| Slider | 472 | 81.7 | 2,570 | 43.9% | 29.6% | |
| Changeup | 306 | 85.8 | 1,760 | 38.9% | 19.3% | |
| Four-Seam Fastball | 11 | 93.3 | 2,060 | 27.3% | 33.3% |
Head to head
Put Justus Sheffield beside up to three others.
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.