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Our engine ran 10,000 Monte Carlo plate appearances of Hunter Goodman against Nick Pivetta at Petco Park. It gives a 18.4% probability of a hit per plate appearance, with 33.8% strikeouts, 5.2% walks and 3.5% home runs per PA. Average simulated length: 3.2 pitches per plate appearance. No raw head-to-head rate drives any of these numbers; the inputs are regressed multi-season rates for both players (methodology below).
| Outcome | Sim probability | Rate |
|---|---|---|
| Walk | 5.2% | |
| Strikeout | 33.8% | |
| Hit by pitch | 0.6% | |
| Single | 11.3% | |
| Double | 3.2% | |
| Triple | 0.5% | |
| Home run | 3.5% | |
| Batted-ball out | 42.0% |
Where the simulated plate appearances ended, and the hit probability conditioned on that count.
| Count | PA ends here | P(hit) at count | K / BB |
|---|---|---|---|
| 0-3 | 15.7% | 0.0% | |
| 0-0 | 14.7% | 31.7% | |
| 0-1 | 13.8% | 29.8% | |
| 1-3 | 12.0% | 0.0% | |
| 1-2 | 7.0% | 26.0% | |
| 0-2 | 7.0% | 30.4% | |
| 1-1 | 6.9% | 30.1% | |
| 2-3 | 6.0% | 0.0% | |
| 1-0 | 4.4% | 28.8% |
Career line: 9 PA, 4 hits (2 HR), 1 BB, 2 SO. .500 AVG / 2.056 OPS. Statcast-era pitch log: 12 PA across 2 seasons (2025–2026).
| Season | PA | H | HR | BB | SO | OPS |
|---|---|---|---|---|---|---|
| 2025 | 8 | 4 | 2 | 1 | 1 | 2.339 |
| 2026 | 1 | 0 | 0 | 0 | 1 | .000 |
Read rate: 9 career PA is 0.0% of one full batter season. One extra dropped popup changes the career average by 12.5 points.
Re-running the same 10,000 simulated PAs with Petco Park's factors (hit 0.96x, home run 0.88x) moves the hit probability from 19.6% in a neutral park to 18.4%, a -1.2-point move.
Nick Pivetta's 2026 pitch mix (22,488 pitches tracked).
| Pitch | Usage | Avg velo | Whiff / swing |
|---|---|---|---|
| Four-Seam Fastball | 50.5% | 94 mph | |
| Knuckle Curve | 13.4% | 79 mph | |
| Slider | 9.7% | 85 mph | |
| Curveball | 9.3% | 79 mph | |
| Sweeper | 6.5% | 82 mph | |
| Cutter | 5.8% | 88 mph | |
| Sinker | 3.1% | 94 mph | |
| Changeup | 1.3% | 87 mph | |
| Split-Finger | 0.4% | 87 mph |
| Pitch | PA | H | K | Whiff / swing |
|---|---|---|---|---|
| Four-Seam Fastball | 5 | 1 | 1 | 0% |
| Sweeper | 4 | 2 | 1 | 0% |
Inputs: Hunter Goodman's and Nick Pivetta's last-three-season lines (3104 PA / 2457 BF weighted 1x/2x/3x by recency), shrunk toward league average, blended with a log5 odds-ratio matchup model, conditioned on real league count-level pitch and batted-ball frequencies, and park-adjusted with committed park factors. The count process is calibrated per pair so simulated strikeout and walk rates land within 0.3% of the model targets (this page: 0.03% K error,0.03% BB error).
Head-to-head history never enters the simulation; a batter-pitcher pair shares a few dozen career PAs at most, and honesty means the model's priors are the players' own multi-season tendencies, not a 30-PA fluke. Full engine notes on the methodology page.