| Date | Opp | Result | Pos | AB | R | H | TB | 2B | 3B | HR | RBI | SH | SF | HBP | BB | IBB | SO | SB | CS | GIDP | PO | A | E | DP | AVG | OBP | SLG | OPS | wOBA | wRC+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2011 — Brewster Whitecaps · Washington | ||||||||||||||||||||||||||||||
| Season Total | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | 0 | — | — | — | — | — | — | |||
| 2012 — Brewster Whitecaps · Washington | ||||||||||||||||||||||||||||||
| Season Total | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 1 | 0 | — | — | — | — | — | — |
| Date | Opp | Result | Dec | GS | IP | AB | BF | H | R | ER | HR | BB | IBB | SO | HBP | SH | SF | WP | BK | ERA | WHIP | K/9 | BB/9 | FIP | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2011 — Brewster Whitecaps · Washington | |||||||||||||||||||||||||
| Season Total 0-0 | 0 | 27.1 | 98 | 117 | 18 | 7 | 6 | 1 | 14 | — | 30 | 2 | 3 | — | 4 | — | 1.98 | 1.17 | 9.88 | 4.61 | 3.14 | 174 | |||
| 2012 — Brewster Whitecaps · Washington | |||||||||||||||||||||||||
| Season Total 1-3 | 7 | 35.2 | 128 | 150 | 27 | 22 | 18 | 1 | 20 | — | 52 | 0 | 1 | 1 | 1 | — | 4.54 | 1.32 | 13.12 | 5.05 | 2.76 | 98 |
| Year | Level | Team | Org | G | PA | AB | R | H | TB | 2B | 3B | HR | RBI | BB | SO | SB | CS | HBP | SF | SAC | GIDP | AVG | OBP | SLG | OPS | BABIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | MLB | Washington Nationals | Washington Nationals | 4 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0.000 | — |
| 2019 | MLB | Washington Nationals | Washington Nationals | 9 | 10 | 9 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 1 | 0 | 0.111 | 0.111 | 0.111 | 0.222 | 0.167 |
| 2021 | MLB | Washington Nationals | Washington Nationals | 49 | 3 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0.500 | 0.667 | 0.500 | 1.167 | 1.000 |
| 2024 | MLB | Seattle Mariners | Seattle Mariners | 68 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0.000 | — |
| 2018–2024 | MLB | Career (4 yrs) | 130 | 15 | 13 | 1 | 2 | 2 | 0 | 0 | 0 | 1 | 0 | 5 | 0 | 0 | 1 | 0 | 1 | 0 | 0.154 | 0.214 | 0.154 | 0.368 | — |
| Year | Level | Team | Org | G | GS | IP | H | R | ER | BB | SO | HR | W | L | SV | ERA | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2014 | AA | Harrisburg | Washington Nationals | 5 | 5 | 19.1 | 22 | 14 | 14 | 9 | 19 | 4 | 1 | 3 | 0 | 6.52 | 1.60 | 8.84 |
| 2015 | AA | Harrisburg | Washington Nationals | 28 | 27 | 157.1 | 134 | 60 | 51 | 40 | 148 | 10 | 6 | 7 | 0 | 2.92 | 1.11 | 8.47 |
| 2016 | AAA | Syracuse | Washington Nationals | 27 | 25 | 157.0 | 138 | 63 | 55 | 57 | 133 | 11 | 7 | 9 | 0 | 3.15 | 1.24 | 7.62 |
| 2017 | AA | Harrisburg | Washington Nationals | 10 | 10 | 54.1 | 63 | 34 | 31 | 13 | 44 | 8 | 3 | 4 | 0 | 5.13 | 1.40 | 7.29 |
| 2017 | AAA | Syracuse | Washington Nationals | 13 | 13 | 66.1 | 85 | 50 | 47 | 34 | 42 | 12 | 1 | 7 | 0 | 6.38 | 1.79 | 5.70 |
| 2018 | AAA | Syracuse | Washington Nationals | 24 | 24 | 125.2 | 119 | 68 | 61 | 40 | 117 | 13 | 6 | 8 | 0 | 4.37 | 1.27 | 8.38 |
| 2018 | MLB | Washington Nationals | Washington Nationals | 4 | 2 | 12.1 | 12 | 9 | 9 | 6 | 11 | 3 | 1 | 1 | 0 | 6.57 | 1.46 | 8.03 |
| 2019 | AA | Harrisburg | Washington Nationals | 3 | 3 | 11.1 | 11 | 6 | 6 | 2 | 11 | 1 | 1 | 1 | 0 | 4.76 | 1.15 | 8.74 |
| 2019 | AAA | Fresno | Washington Nationals | 12 | 12 | 61.1 | 68 | 34 | 30 | 15 | 68 | 7 | 3 | 5 | 0 | 4.40 | 1.35 | 9.98 |
| 2019 | MLB | Washington Nationals | Washington Nationals | 9 | 8 | 43.2 | 33 | 16 | 16 | 13 | 44 | 5 | 2 | 1 | 0 | 3.30 | 1.05 | 9.07 |
| 2020 | MLB | Washington Nationals | Washington Nationals | 11 | 11 | 49.2 | 57 | 36 | 35 | 18 | 44 | 14 | 2 | 5 | 0 | 6.34 | 1.51 | 7.97 |
| 2021 | AAA | Rochester | Washington Nationals | 2 | 2 | 3.0 | 2 | 0 | 0 | 1 | 4 | 0 | 0 | 0 | 0 | 0.00 | 1.00 | 12.00 |
| 2021 | MLB | Washington Nationals | Washington Nationals | 49 | 1 | 57.1 | 57 | 35 | 34 | 28 | 59 | 10 | 4 | 1 | 0 | 5.34 | 1.48 | 9.26 |
| 2022 | MLB | 2 Teams | 2 Teams | 41 | 17 | 101.2 | 111 | 52 | 49 | 31 | 90 | 14 | 5 | 4 | 0 | 4.34 | 1.40 | 7.97 |
| 2023 | AA | Bowie | Baltimore Orioles | 1 | 1 | 2.0 | 2 | 1 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 4.50 | 1.00 | 9.00 |
| 2023 | AAA | Norfolk | Baltimore Orioles | 9 | 3 | 15.1 | 20 | 10 | 9 | 9 | 20 | 1 | 0 | 0 | 0 | 5.28 | 1.89 | 11.74 |
| 2023 | MLB | Baltimore Orioles | Baltimore Orioles | 25 | 0 | 34.2 | 39 | 22 | 20 | 15 | 34 | 6 | 1 | 2 | 0 | 5.19 | 1.56 | 8.83 |
| 2024 | MLB | Seattle Mariners | Seattle Mariners | 68 | 0 | 61.0 | 46 | 31 | 25 | 18 | 61 | 9 | 2 | 5 | 0 | 3.69 | 1.05 | 9.00 |
| 2026 | AAA | Buffalo, Round Rock, St. Paul | Toronto Blue Jays, Minnesota Twins, Texas Rangers | 12 | 12 | 49.1 | 51 | 25 | 22 | 15 | 45 | 9 | 1 | 4 | 0 | 4.01 | 1.34 | 8.21 |
| 2026 | MLB | Toronto Blue Jays - Minnesota Twins | Toronto Blue Jays - Minnesota Twins | 3 | 0 | 10.0 | 19 | 12 | 11 | 6 | 3 | 3 | 0 | 1 | 0 | 9.90 | 2.50 | 2.70 |
| 2026 | MLB | Minnesota Twins - Toronto Blue Jays | Minnesota Twins - Toronto Blue Jays | 3 | 0 | 10.0 | 19 | 12 | 11 | 6 | 3 | 3 | 0 | 1 | 0 | 9.90 | 2.50 | 2.70 |
| 2018–2026 | MLB | Career (8 yrs) | 213 | 39 | 380.1 | 393 | 225 | 210 | 141 | 349 | 67 | 17 | 21 | 0 | 4.97 | 1.40 | 8.26 | |
| 2016–2026 | AAA | Career (7 yrs) | 99 | 91 | 478.0 | 483 | 250 | 224 | 171 | 429 | 53 | 18 | 33 | 0 | 4.22 | 1.37 | 8.08 | |
| 2014–2023 | AA | Career (5 yrs) | 47 | 46 | 244.1 | 232 | 115 | 103 | 64 | 224 | 24 | 11 | 15 | 0 | 3.79 | 1.21 | 8.25 |