Isaac Lyon
Washington Nationals (AAA)P
Age: 22
Bats/Throws: R/R
6'3" / 200
DOB: 1/26/2004
(22 years, 7 months, 16 days)
P
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Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingCollege
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | GCU | NCAA | 19 | 0 | 1 | 0 | 10 | 3 | 13.2 | 5.27 | 1.98 | 1.98 | .358 | 41.3% | 7.24 | 7.10 | |||||||||
| 2024 | GCU | NCAA | 20 | 6 | 1 | 1 | 17 | 11 | 81.2 | 8.71 | 1.76 | 0.66 | .352 | 71.4% | 3.97 | 4.61 | |||||||||
| 2025 | GCU | NCAA | 21 | 3 | 4 | 0 | 15 | 15 | 86.0 | 9.21 | 2.41 | 0.42 | .373 | 70.2% | 4.19 | 4.38 | |||||||||
| 2025 | SEA | A | 21 | 0 | 2 | 0 | 4 | 4 | 12.1 | 10.95 | 2.19 | 2.92 | .364 | 67.2% | 40.5% | 28.6% | 7.30 | 6.52 | 3.29 | ||||||
| 2026 | WSN | ST | 22 | 0 | 0 | 0 | 1 | 0 | 2.0 | 13.50 | 0.00 | 0.00 | .000 | 100.0% | 66.7% | 0.0% | 0.00 | 0.65 | 1.59 | ||||||
| 2026 | OOPSY | PROJ | 22 | 0 | 0 | 0 | 1 | 1 | 3.0 | 7.00 | 3.67 | 1.46 | .293 | 69.3% | 5.07 | 5.06 | 0.0 | ||||||||
| 2026 | WSN | A | 22 | 2 | 0 | 0 | 3 | 0 | 8.0 | 6.75 | 2.25 | 1.13 | .217 | 78.9% | 52.2% | 25.0% | 3.38 | 4.91 | 3.98 | ||||||
| 2026 | WSN | A+ | 22 | 0 | 1 | 0 | 6 | 6 | 20.1 | 9.74 | 3.98 | 0.00 | .265 | 83.3% | 64.6% | 0.0% | 1.33 | 3.08 | 4.11 | ||||||
| 2026 | WSN | AA | 22 | 6 | 4 | 1 | 15 | 12 | 73.2 | 7.82 | 2.20 | 0.73 | .302 | 71.4% | 51.8% | 9.8% | 3.79 | 3.74 | 4.22 | ||||||
| 2026 | WSN | AAA | 22 | 2 | 0 | 0 | 3 | 3 | 13.2 | 9.22 | 2.63 | 0.00 | .242 | 83.3% | 36.4% | 0.0% | 1.32 | 3.65 | 2.32 | 4.32 | |||||
| 2026 | WSN | MiLB | 22 | 10 | 5 | 1 | 27 | 21 | 115.2 | 8.25 | 2.57 | 0.54 | .284 | 75.3% | 52.2% | 7.7% | 3.03 | 3.65 | 3.54 | 4.20 | |||||
| 2026 | Steamer | ROS | 22 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.97 | 3.07 | 1.13 | .297 | 70.8% | 4.45 | 4.55 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 22 | 0 | 0 | 0 | 1 | 1 | 4.1 | 5.18 | 3.06 | 1.16 | .292 | 63.9% | 5.00 | 4.82 | 0.0 |
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | GCU | NCAA | 19 | 0 | 1 | 0 | 10 | 3 | 13.2 | 5.27 | 1.98 | 1.98 | .358 | 41.3% | 7.24 | 7.10 | |||||||||
| 2024 | GCU | NCAA | 20 | 6 | 1 | 1 | 17 | 11 | 81.2 | 8.71 | 1.76 | 0.66 | .352 | 71.4% | 3.97 | 4.61 | |||||||||
| 2025 | GCU | NCAA | 21 | 3 | 4 | 0 | 15 | 15 | 86.0 | 9.21 | 2.41 | 0.42 | .373 | 70.2% | 4.19 | 4.38 | |||||||||
| 2025 | SEA | A | 21 | 0 | 2 | 0 | 4 | 4 | 12.1 | 10.95 | 2.19 | 2.92 | .364 | 67.2% | 40.5% | 28.6% | 7.30 | 6.52 | 3.29 | ||||||
| 2026 | WSN | ST | 22 | 0 | 0 | 0 | 1 | 0 | 2.0 | 13.50 | 0.00 | 0.00 | .000 | 100.0% | 66.7% | 0.0% | 0.00 | 0.65 | 1.59 | ||||||
| 2026 | OOPSY | PROJ | 22 | 0 | 0 | 0 | 1 | 1 | 3.0 | 7.00 | 3.67 | 1.46 | .293 | 69.3% | 5.07 | 5.06 | 0.0 | ||||||||
| 2026 | WSN | A | 22 | 2 | 0 | 0 | 3 | 0 | 8.0 | 6.75 | 2.25 | 1.13 | .217 | 78.9% | 52.2% | 25.0% | 3.38 | 4.91 | 3.98 | ||||||
| 2026 | WSN | A+ | 22 | 0 | 1 | 0 | 6 | 6 | 20.1 | 9.74 | 3.98 | 0.00 | .265 | 83.3% | 64.6% | 0.0% | 1.33 | 3.08 | 4.11 | ||||||
| 2026 | WSN | AA | 22 | 6 | 4 | 1 | 15 | 12 | 73.2 | 7.82 | 2.20 | 0.73 | .302 | 71.4% | 51.8% | 9.8% | 3.79 | 3.74 | 4.22 | ||||||
| 2026 | WSN | AAA | 22 | 2 | 0 | 0 | 3 | 3 | 13.2 | 9.22 | 2.63 | 0.00 | .242 | 83.3% | 36.4% | 0.0% | 1.32 | 3.65 | 2.32 | 4.32 | |||||
| 2026 | WSN | MiLB | 22 | 10 | 5 | 1 | 27 | 21 | 115.2 | 8.25 | 2.57 | 0.54 | .284 | 75.3% | 52.2% | 7.7% | 3.03 | 3.65 | 3.54 | 4.20 | |||||
| 2026 | Steamer | ROS | 22 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.97 | 3.07 | 1.13 | .297 | 70.8% | 4.45 | 4.55 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 22 | 0 | 0 | 0 | 1 | 1 | 4.1 | 5.18 | 3.06 | 1.16 | .292 | 63.9% | 5.00 | 4.82 | 0.0 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingCollege
| Season | Team | Level | W | L | ERA | G | GS | QS | CG | ShO | SV | HLD | BS | IP | TBF | H | R | ER | HR | BB | IBB | HBP | WP | BK | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | GCU | NCAA | 0 | 1 | 7.24 | 10 | 3 | 0 | 0 | 0 | 13.2 | 68 | 22 | 17 | 11 | 3 | 3 | 1 | 1 | 0 | 8 | ||||
| 2024 | GCU | NCAA | 6 | 1 | 3.97 | 17 | 11 | 0 | 0 | 1 | 81.2 | 367 | 94 | 42 | 36 | 6 | 16 | 16 | 10 | 0 | 79 | ||||
| 2025 | GCU | NCAA | 3 | 4 | 4.19 | 15 | 15 | 1 | 1 | 0 | 86.0 | 392 | 101 | 46 | 40 | 4 | 23 | 17 | 1 | 0 | 88 | ||||
| 2025 | SEA | A | 0 | 2 | 7.30 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 12.1 | 55 | 16 | 10 | 10 | 4 | 3 | 0 | 0 | 0 | 0 | 15 | |
| 2026 | WSN | ST | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2.0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | |
| 2026 | OOPSY | PROJ | 0 | 0 | 5.07 | 1 | 1 | 0 | 0 | 0 | 3.0 | 14 | 3 | 2 | 2 | 0 | 1 | 0 | 0 | 2 | |||||
| 2026 | WSN | A | 2 | 0 | 3.38 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 8.0 | 33 | 6 | 3 | 3 | 1 | 2 | 0 | 1 | 0 | 0 | 6 | |
| 2026 | WSN | A+ | 0 | 1 | 1.33 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 20.1 | 82 | 13 | 4 | 3 | 0 | 9 | 0 | 2 | 1 | 0 | 22 | |
| 2026 | WSN | AA | 6 | 4 | 3.79 | 15 | 12 | 1 | 0 | 1 | 0 | 1 | 73.2 | 305 | 71 | 32 | 31 | 6 | 18 | 0 | 2 | 4 | 0 | 64 | |
| 2026 | WSN | AAA | 2 | 0 | 1.32 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 13.2 | 51 | 8 | 2 | 2 | 0 | 4 | 0 | 0 | 0 | 0 | 14 | |
| 2026 | WSN | MiLB | 10 | 5 | 3.03 | 27 | 21 | 1 | 0 | 1 | 0 | 1 | 115.2 | 471 | 98 | 41 | 39 | 7 | 33 | 0 | 5 | 5 | 0 | 106 | |
| 2026 | Steamer | ROS | 0 | 0 | 4.45 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 5.00 | 1 | 1 | 0 | 0 | 0 | 4.1 | 17 | 4 | 3 | 2 | 1 | 1 | 0 | 0 | 2 |
| Season | Team | Level | W | L | ERA | G | GS | QS | CG | ShO | SV | HLD | BS | IP | TBF | H | R | ER | HR | BB | IBB | HBP | WP | BK | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | GCU | NCAA | 0 | 1 | 7.24 | 10 | 3 | 0 | 0 | 0 | 13.2 | 68 | 22 | 17 | 11 | 3 | 3 | 1 | 1 | 0 | 8 | ||||
| 2024 | GCU | NCAA | 6 | 1 | 3.97 | 17 | 11 | 0 | 0 | 1 | 81.2 | 367 | 94 | 42 | 36 | 6 | 16 | 16 | 10 | 0 | 79 | ||||
| 2025 | GCU | NCAA | 3 | 4 | 4.19 | 15 | 15 | 1 | 1 | 0 | 86.0 | 392 | 101 | 46 | 40 | 4 | 23 | 17 | 1 | 0 | 88 | ||||
| 2025 | SEA | A | 0 | 2 | 7.30 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 12.1 | 55 | 16 | 10 | 10 | 4 | 3 | 0 | 0 | 0 | 0 | 15 | |
| 2026 | WSN | ST | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2.0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | |
| 2026 | OOPSY | PROJ | 0 | 0 | 5.07 | 1 | 1 | 0 | 0 | 0 | 3.0 | 14 | 3 | 2 | 2 | 0 | 1 | 0 | 0 | 2 | |||||
| 2026 | WSN | A | 2 | 0 | 3.38 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 8.0 | 33 | 6 | 3 | 3 | 1 | 2 | 0 | 1 | 0 | 0 | 6 | |
| 2026 | WSN | A+ | 0 | 1 | 1.33 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 20.1 | 82 | 13 | 4 | 3 | 0 | 9 | 0 | 2 | 1 | 0 | 22 | |
| 2026 | WSN | AA | 6 | 4 | 3.79 | 15 | 12 | 1 | 0 | 1 | 0 | 1 | 73.2 | 305 | 71 | 32 | 31 | 6 | 18 | 0 | 2 | 4 | 0 | 64 | |
| 2026 | WSN | AAA | 2 | 0 | 1.32 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 13.2 | 51 | 8 | 2 | 2 | 0 | 4 | 0 | 0 | 0 | 0 | 14 | |
| 2026 | WSN | MiLB | 10 | 5 | 3.03 | 27 | 21 | 1 | 0 | 1 | 0 | 1 | 115.2 | 471 | 98 | 41 | 39 | 7 | 33 | 0 | 5 | 5 | 0 | 106 | |
| 2026 | Steamer | ROS | 0 | 0 | 4.45 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 5.00 | 1 | 1 | 0 | 0 | 0 | 4.1 | 17 | 4 | 3 | 2 | 1 | 1 | 0 | 0 | 2 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingAveragesCollege
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | GCU | NCAA | 5.27 | 1.98 | 2.67 | 1.98 | 11.8% | 4.4% | 7.4% | .344 | 1.83 | .358 | 41.3% | 7.10 | ||||||
| 2024 | GCU | NCAA | 8.71 | 1.76 | 4.94 | 0.66 | 21.5% | 4.4% | 17.2% | .281 | 1.35 | .352 | 71.4% | 4.61 | ||||||
| 2025 | GCU | NCAA | 9.21 | 2.41 | 3.83 | 0.42 | 22.4% | 5.9% | 16.6% | .287 | 1.44 | .373 | 70.2% | 4.38 | ||||||
| 2025 | SEA | A | 10.95 | 2.19 | 5.00 | 2.92 | 27.3% | 5.5% | 21.8% | .308 | 1.54 | .364 | 67.2% | 166 | 151 | 6.52 | ||||
| 2026 | WSN | ST | 13.50 | 0.00 | 3.00 | 0.00 | 50.0% | 0.0% | 50.0% | .000 | 0.00 | .000 | 100.0% | 0 | 13 | 0.65 | ||||
| 2026 | OOPSY | PROJ | 7.00 | 3.67 | 1.91 | 1.46 | 17.1% | 9.0% | 8.1% | .265 | 1.49 | .293 | 69.3% | 5.06 | ||||||
| 2026 | WSN | A | 6.75 | 2.25 | 3.00 | 1.13 | 18.2% | 6.1% | 12.1% | .200 | 1.00 | .217 | 78.9% | 71 | 103 | 4.91 | ||||
| 2026 | WSN | A+ | 9.74 | 3.98 | 2.44 | 0.00 | 26.8% | 11.0% | 15.9% | .183 | 1.08 | .265 | 83.3% | 27 | 61 | 3.08 | ||||
| 2026 | WSN | AA | 7.82 | 2.20 | 3.56 | 0.73 | 21.0% | 5.9% | 15.1% | .249 | 1.21 | .302 | 71.4% | 83 | 79 | 3.74 | ||||
| 2026 | WSN | AAA | 9.22 | 2.63 | 3.50 | 0.00 | 27.5% | 7.8% | 19.6% | .170 | 0.88 | .242 | 83.3% | 27 | 48 | 2.32 | ||||
| 2026 | WSN | MiLB | 8.25 | 2.57 | 3.21 | 0.54 | 22.5% | 7.0% | 15.5% | .226 | 1.13 | .284 | 75.3% | 66 | 74 | 3.54 | ||||
| 2026 | Steamer | ROS | 5.97 | 3.07 | 1.94 | 1.13 | 15.2% | 7.8% | 7.4% | .270 | 1.41 | .297 | 70.8% | 4.55 | ||||||
| 2026 | OOPSY | ROS | 5.18 | 3.06 | 1.69 | 1.16 | 13.9% | 8.2% | 5.7% | .272 | 1.36 | .292 | 63.9% | 4.82 |
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | GCU | NCAA | 5.27 | 1.98 | 2.67 | 1.98 | 11.8% | 4.4% | 7.4% | .344 | 1.83 | .358 | 41.3% | 7.10 | ||||||
| 2024 | GCU | NCAA | 8.71 | 1.76 | 4.94 | 0.66 | 21.5% | 4.4% | 17.2% | .281 | 1.35 | .352 | 71.4% | 4.61 | ||||||
| 2025 | GCU | NCAA | 9.21 | 2.41 | 3.83 | 0.42 | 22.4% | 5.9% | 16.6% | .287 | 1.44 | .373 | 70.2% | 4.38 | ||||||
| 2025 | SEA | A | 10.95 | 2.19 | 5.00 | 2.92 | 27.3% | 5.5% | 21.8% | .308 | 1.54 | .364 | 67.2% | 166 | 151 | 6.52 | ||||
| 2026 | WSN | ST | 13.50 | 0.00 | 3.00 | 0.00 | 50.0% | 0.0% | 50.0% | .000 | 0.00 | .000 | 100.0% | 0 | 13 | 0.65 | ||||
| 2026 | OOPSY | PROJ | 7.00 | 3.67 | 1.91 | 1.46 | 17.1% | 9.0% | 8.1% | .265 | 1.49 | .293 | 69.3% | 5.06 | ||||||
| 2026 | WSN | A | 6.75 | 2.25 | 3.00 | 1.13 | 18.2% | 6.1% | 12.1% | .200 | 1.00 | .217 | 78.9% | 71 | 103 | 4.91 | ||||
| 2026 | WSN | A+ | 9.74 | 3.98 | 2.44 | 0.00 | 26.8% | 11.0% | 15.9% | .183 | 1.08 | .265 | 83.3% | 27 | 61 | 3.08 | ||||
| 2026 | WSN | AA | 7.82 | 2.20 | 3.56 | 0.73 | 21.0% | 5.9% | 15.1% | .249 | 1.21 | .302 | 71.4% | 83 | 79 | 3.74 | ||||
| 2026 | WSN | AAA | 9.22 | 2.63 | 3.50 | 0.00 | 27.5% | 7.8% | 19.6% | .170 | 0.88 | .242 | 83.3% | 27 | 48 | 2.32 | ||||
| 2026 | WSN | MiLB | 8.25 | 2.57 | 3.21 | 0.54 | 22.5% | 7.0% | 15.5% | .226 | 1.13 | .284 | 75.3% | 66 | 74 | 3.54 | ||||
| 2026 | Steamer | ROS | 5.97 | 3.07 | 1.94 | 1.13 | 15.2% | 7.8% | 7.4% | .270 | 1.41 | .297 | 70.8% | 4.55 | ||||||
| 2026 | OOPSY | ROS | 5.18 | 3.06 | 1.69 | 1.16 | 13.9% | 8.2% | 5.7% | .272 | 1.36 | .292 | 63.9% | 4.82 |
