Tyron Guerrero
BOS • P • Throws R • 2026 Season
Yahoo eligible: RP
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 207 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.
Primary pitch: Sinker (100%)
Season Stats
The big number is the actual stat. The bar below it is this pitcher's percentile vs 385 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 | 13.1 | — | 1.05 | 13.5 | 1.4 | .567 |
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 (26 games)
| Date | Opp | Dec | IP | H | R | ER | BB | SO | HR | P |
|---|---|---|---|---|---|---|---|---|---|---|
| Aug 2 | @ Los Angeles Dodgers | - | 1 | 2 | 1 | 1 | 0 | 1 | 0 | 23 |
| Aug 1 | @ Los Angeles Dodgers | - | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 11 |
| Jul 29 | @ Athletics | - | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 11 |
| Jul 26 | vs Toronto Blue Jays | - | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 16 |
| Jul 24 | vs Toronto Blue Jays | - | 1.1 | 0 | 0 | 0 | 0 | 1 | 0 | 13 |
| Jul 20 | vs Baltimore Orioles | - | 1.1 | 2 | 1 | 1 | 0 | 3 | 0 | 19 |
| Jul 17 | vs Tampa Bay Rays | - | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 13 |
| Jul 10 | @ New York Mets | - | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 19 |
| Jul 9 | @ Chicago White Sox | W | 1.2 | 2 | 0 | 0 | 0 | 1 | 0 | 19 |
| Jul 5 | @ Los Angeles Angels | - | 2 | 0 | 0 | 0 | 1 | 1 | 0 | 26 |
| Jun 29 | vs Washington Nationals | - | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 15 |
| Jun 28 | vs New York Yankees | - | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 9 |
| Jun 24 | @ Colorado Rockies | - | 0.2 | 2 | 3 | 0 | 0 | 1 | 0 | 25 |
| Jun 22 | @ Colorado Rockies | - | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 8 |
| Jun 20 | @ Seattle Mariners | - | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 14 |
| Jun 17 | vs Toronto Blue Jays | - | 1.2 | 1 | 0 | 0 | 0 | 3 | 0 | 18 |
| Jun 13 | vs Texas Rangers | - | 0.1 | 2 | 1 | 1 | 0 | 1 | 1 | 18 |
| Jun 12 | vs Texas Rangers | - | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 12 |
| Jun 8 | @ Tampa Bay Rays | - | 1.1 | 1 | 0 | 0 | 0 | 2 | 0 | 16 |
| Jun 7 | @ New York Yankees | - | 0.2 | 0 | 0 | 0 | 0 | 1 | 0 | 10 |
| May 31 | @ Cleveland Guardians | - | 0.2 | 1 | 0 | 0 | 0 | 1 | 0 | 15 |
| May 30 | @ Cleveland Guardians | - | 0.2 | 1 | 0 | 0 | 0 | 1 | 0 | 7 |
| May 28 | vs Atlanta Braves | - | 0.1 | 1 | 0 | 0 | 0 | 0 | 0 | 8 |
| May 26 | vs Atlanta Braves | - | 2 | 2 | 2 | 2 | 0 | 4 | 1 | 36 |
| May 24 | vs Minnesota Twins | L | 0.2 | 2 | 2 | 2 | 0 | 2 | 0 | 14 |
| May 22 | vs Minnesota Twins | - | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 16 |