George Kirby
George Kirby is a 28-year-old starting pitcher for the Seattle Mariners. He is a power starting pitcher with pinpoint command and a deep arsenal, ranked 370th in the league at the role.
About these ratings
Tool ratings combine recorded performance with statistical estimates. Speed, arm, and fielding include outcome-based estimates rather than direct physical measurements.
CE uses the best available contract information, including partial terms, estimated salaries, and projected team control. CE shows an asterisk only when current contract information is unavailable; free agents without a current agreement use 100*.
2026 win contribution
4.50 Player Wins · 3.97 expected from replacement · 0.53 wins above replacement
Includes contributions to every team played for in 2026. Perf expresses wins above replacement on a scale where 100 is average. How the win totals reconcile
Six-tool graphs show percentiles from available performance evidence. Speed uses baserunning outcomes; Arm uses position-adjusted throwing outcomes. Movement describes tracked pitch movement within pitch type. Minor-league comparisons account for competition level; unavailable measurements display MD.
Edge Profile
Edge combines Perf, Stick, and Carry to show how valuable a player is right now. With a Perf of 93, Stick of 112, and Carry of 97, George Kirby sits in the 68th percentile, 85th percentile, and 69th percentile in those areas. His 102 Edge lands in the 77th percentile and ranks 65th among starting pitchers.
Stick Profile
Stick looks beyond the immediate results and estimates what should hold over a larger sample. George Kirby's 112 Stick suggests he is performing below what his underlying profile supports. It also places him in the 85th percentile and ranks 40th among starting pitchers.
Perf Profile
Perf measures season wins above replacement after allocating each team's actual wins to its players. It includes George Kirby's contributions to every team he played for. His 93 Perf is below average on a scale where 100 is average and 20 points is one standard deviation. It sits in the 68th percentile and ranks 86th among starting pitchers.
Carry Profile
Carry places Perf in the context of the roster around a player and includes a bounded clutch adjustment for offense, pitching, and defense when available. Close games and later innings earn more weight, and difficult defensive plays receive their own credit. His clutch runs are offense +0.0, pitching +0.8, defense -0.1. The strongest rated teammates are Randy Arozarena at 142, Bryan Woo at 130, and Cole Young at 109. George Kirby has contributed about as much as his own Perf suggests, resulting in a Carry of 97.
LI Profile
LI looks at how much useful baseball a player may still have ahead of him. At age 28, George Kirby carries a 104 LI, which points to a steady near-term outlook without a major longevity advantage. That places him in the 45th percentile and ranks 1403rd among starting pitchers.
CE Profile
CE compares expected production with the money and years attached to a contract. The model uses a 3 seasons control horizon, $6.6 million average annual value, and about $6.6 million in contract-scenario costs for George Kirby. Options and arbitration can make those years or costs conditional; manual contract inputs may lag new agreements. His 126 CE makes the contract a clear source of surplus value, placing him in the 96th percentile and 77th among starting pitchers.
NTV Profile
NTV estimates George Kirby's value on a neutral trade market before the needs of a specific club are considered. His +18 NTV reflects his present ability, expected future value, age, contract, control, positional demand, and risk. That mark sits in the 88th percentile and ranks 370th among starting pitchers. George Kirby carries clear positive value and should return a useful major league piece or prospect package.