Odds, predictions, standings, and expert analysis for every MLB game
Mark Leiter Jr.
Throws R · 2026 player profile
Quality of contact allowed
10-game rolling xwOBA
2026-03-28 — 2026-07-18 · 36 recorded dates. Lower xwOBA means less expected production allowed.
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Our picks on Jr.
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Pick record checked Oct 13, 2026 ET. Local preview uses saved data.
Our past picks
Original reasoning and recorded results.
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Inside the repertoire
What he throws, how it moves, and when he uses it.
The arsenal
| Pitch | Usage | Velo | Whiff% | xwOBA | EV | HMov | VMov | Spin |
|---|---|---|---|---|---|---|---|---|
| Split-FingerFS | 33% | 84.3 | 45.3% | 0.204 | 83.8 | -5.1 | 2.9 | 749 |
| SinkerSI | 26% | 92.1 | 13.6% | 0.341 | 81.8 | -14.8 | 11.5 | 2016 |
| CurveballCU | 19% | 73.9 | 34.9% | 0.346 | 90.5 | 10.1 | -16.3 | 2316 |
| 4-Seam FastballFF | 12% | 92.2 | 7.7% | 0.370 | 95.3 | -7.5 | 16.2 | 1970 |
| CutterFC | 9% | 89.7 | 25.0% | 0.484 | 92.0 | 1.0 | 9.1 | 2117 |
| SliderSL | 1% | 82.5 | 0.0% | 0.963 | 85.0 | 2.1 | -1.7 | 2238 |
Contact allowed by location
Heatmap · exit velocity in mph · catcher’s view. Choose a pitch type above to filter measured contact.
Data detail
Season & career
Updated 2026-10-13. Seasons are split by team. Innings use baseball notation: .1 is one out, .2 is two outs.
| Season / team | G | GS | IP | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|
| 2026 · Athletics | 36 | 0 | 33.2 | 38 | 11 | 4.28 | 1.31 |
| 2025 · New York Yankees | 59 | 0 | 48.1 | 54 | 17 | 4.84 | 1.53 |
| 2024 · | 60 | 0 | 58.0 | 86 | 22 | 4.50 | 1.33 |
| 2024 · New York Yankees | 21 | 0 | 21.2 | 33 | 9 | 4.98 | 1.71 |
| 2024 · Chicago Cubs | 39 | 0 | 36.1 | 53 | 13 | 4.21 | 1.10 |
| 2023 · Chicago Cubs | 69 | 0 | 64.1 | 77 | 24 | 3.50 | 1.12 |
| 2022 · Chicago Cubs | 35 | 4 | 67.2 | 73 | 25 | 3.99 | 1.14 |
| 2018 · | 20 | 0 | 23.1 | 22 | 12 | 7.71 | 2.01 |
| 2018 · Toronto Blue Jays | 8 | 0 | 6.2 | 9 | 4 | 13.50 | 2.55 |
| 2018 · Philadelphia Phillies | 12 | 0 | 16.2 | 13 | 8 | 5.40 | 1.80 |
| 2017 · Philadelphia Phillies | 27 | 11 | 90.2 | 84 | 31 | 4.96 | 1.33 |
| Career | 306 | 15 | 386.0 | 434 | 142 | 4.57 | 1.33 |
Recorded game dates 36 dates
Existing chart-builder observations, grouped by date. Not an official box-score game log; missing values stay blank.
| Date | PA* | xwOBA | BA | EV (mph) | Barrel fraction |
|---|---|---|---|---|---|
| 2026-07-18 | 6 | 0.369 | 0.250 | 81.1 | 0.000 |
| 2026-07-12 | 3 | 0.203 | 0.000 | 89.0 | 0.000 |
| 2026-07-09 | 5 | 0.318 | 0.250 | 92.8 | 0.000 |
| 2026-07-03 | 3 | 0.244 | 0.000 | — | — |
| 2026-06-16 | 4 | 0.307 | 0.250 | 79.4 | 0.000 |
| 2026-06-13 | 3 | 0.181 | 0.250 | 88.9 | 0.000 |
| 2026-06-08 | 4 | 0.409 | 0.500 | 97.4 | 0.000 |
| 2026-06-07 | 3 | 0.109 | 0.000 | 90.5 | 0.000 |
| 2026-06-04 | 3 | 0.027 | 0.000 | 77.6 | 0.000 |
| 2026-06-03 | 2 | 0.114 | 0.000 | 93.1 | 0.000 |
*PA is the count of appearances with a positive wOBA denominator.
How to read these numbers
Sample: 144 pa
Compared with 2026 pitchers with a recorded value and at least 50 batters faced.
Sample: 91 bip
Compared with 2026 pitchers with a recorded value and at least 30 batted balls.
Sample: 86 bip
Compared with 2026 pitchers with a recorded value and at least 30 batted balls.
Sample: 89 bip
Compared with 2026 pitchers with a recorded value and at least 50 batters faced.
