Geoff Hartlieb
ATH • P • Throws R • 2026 Season
Value
Standard score (σ), not a percentile, vs all qualified pitchers — 0 = average, +1 = one standard deviation above the mean. Built from 5x5 category z-scores (like Baseball Monster).
Control & Efficiency
Strike-throwing and length profile — drives the Likely-QS / High-K/BB start flags. The bar under each stat is this pitcher's percentile vs 236 qualified MLB starters (100th = best — already direction-adjusted, so a low BB% or P/PA scores high).
Arsenal
Throwing hand and pitch mix (share of pitches thrown) — the traits the matchup ratings below weigh against each opponent's splits.
Season Stats
The big number is the actual stat. The bar below it is this pitcher's percentile vs 441 qualified MLB pitchers (≥30 IP) this season — 100th = best, direction-adjusted (a low ERA/WHIP/BB scores high).
Splits & Tendencies
How this pitcher fares by batter hand, venue, opponent lineup quality (elite→poor offenses), and over the last 30 days. Lower ERA/WHIP is better; OPS-against shows for the hand/venue splits. Hover a tag for the numbers.
| Split | IP | ERA | WHIP | K/9 | BB/9 | OPS-agst |
|---|---|---|---|---|---|---|
| vs LHB | 10.1 | — | 1.45 | 7.0 | 5.2 | .707 |
Luck Factor
How much this pitcher's results are outrunning or trailing the quality of what actually happened — league-relative. Hover a meter for the inputs.
Game Log (13 games)
| Date | Opp | Dec | IP | H | R | ER | BB | SO | HR | P |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 13 | vs Seattle Mariners | - | 2 | 1 | 0 | 0 | 0 | 2 | 0 | 25 |
| Sep 8 | vs Toronto Blue Jays | - | 2 | 1 | 0 | 0 | 1 | 2 | 0 | 30 |
| Sep 5 | @ Seattle Mariners | - | 1 | 2 | 1 | 1 | 0 | 2 | 0 | 22 |
| Sep 4 | @ Seattle Mariners | - | 1.1 | 0 | 0 | 0 | 0 | 1 | 0 | 13 |
| Sep 2 | @ Texas Rangers | - | 2 | 2 | 0 | 0 | 0 | 1 | 0 | 26 |
| Jul 26 | @ Minnesota Twins | - | 2 | 5 | 3 | 3 | 0 | 1 | 0 | 33 |
| Jul 24 | @ Minnesota Twins | - | 0.1 | 0 | 0 | 0 | 3 | 1 | 0 | 18 |
| Jul 21 | @ Arizona Diamondbacks | - | 0.1 | 0 | 1 | 1 | 2 | 0 | 0 | 13 |
| Jul 19 | vs Washington Nationals | - | 2 | 1 | 0 | 0 | 1 | 1 | 0 | 24 |
| Jun 30 | vs Los Angeles Dodgers | - | 3 | 6 | 3 | 3 | 1 | 1 | 0 | 52 |
| Jun 27 | @ Los Angeles Angels | L | 0.2 | 2 | 1 | 1 | 0 | 0 | 0 | 9 |
| Jun 25 | @ San Francisco Giants | W | 2 | 0 | 0 | 0 | 1 | 1 | 0 | 25 |
| Jun 20 | vs Los Angeles Angels | - | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 43 |