Odds, predictions, standings, and expert analysis for every MLB game
Jonathan Heasley
Throws R · 2026 player profile
Quality of contact allowed
10-game rolling xwOBA
2026-05-27 — 2026-05-27 · 1 recorded dates. Lower xwOBA means less expected production allowed.
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Our picks on Heasley
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Pick record checked Oct 13, 2026 ET. Local preview uses saved data.
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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 |
|---|---|---|---|---|---|---|---|---|
| 4-Seam FastballFF | 39% | 91.4 | 5.3% | 0.521 | 96.0 | -9.2 | 17.8 | 2100 |
| SliderSL | 33% | 83.2 | 10.0% | 0.132 | 92.0 | 3.4 | 0.0 | 2018 |
| ChangeupCH | 19% | 84.2 | 16.7% | 0.835 | 107.8 | -11.5 | -1.4 | 1315 |
| CurveballCU | 9% | 79.9 | 0.0% | 0.434 | 85.0 | 3.0 | -11.9 | 2448 |
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 · Tampa Bay Rays | 1 | 0 | 4.0 | 2 | 0 | 11.25 | 2.00 |
| 2024 · Baltimore Orioles | 4 | 0 | 5.1 | 4 | 3 | 16.88 | 2.44 |
| 2023 · Kansas City Royals | 12 | 0 | 15.0 | 9 | 2 | 7.20 | 1.27 |
| 2022 · Kansas City Royals | 21 | 21 | 104.0 | 70 | 47 | 5.28 | 1.49 |
| 2021 · Kansas City Royals | 3 | 3 | 14.2 | 6 | 3 | 4.91 | 1.23 |
| Career | 41 | 24 | 143.0 | 91 | 55 | 6.04 | 1.49 |
Recorded game dates 1 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 |
|---|---|---|---|---|---|
| 2026-05-27 | 19 | 0.479 | 0.421 | 95.1 | 0.118 |
*PA is the count of appearances with a positive wOBA denominator.
How to read these numbers
Sample: 19 pa
Compared with 2026 pitchers with a recorded value and at least 50 batters faced.
Sample: 17 bip
Compared with 2026 pitchers with a recorded value and at least 30 batted balls.
Sample: 17 bip
Compared with 2026 pitchers with a recorded value and at least 30 batted balls.
Sample: 15 bip
Compared with 2026 pitchers with a recorded value and at least 50 batters faced.
