Seth Lonsway
San Francisco GiantsP
Age: 28
Bats/Throws: L/L
6'0" / 206
DOB: 10/7/1998
(28 years, 23 days)
P
| Season | 2026 | Total |
| Team | SFG | - - - |
| Level | MLB | MLB |
| G | 2 | 2 |
| GS | 0 | 0 |
| IP | 2.1 | 2.1 |
| K% | 14.3% | 14.3% |
| BB% | 0.0% | 0.0% |
| GB% | 90.9% | 90.9% |
| ERA | 7.71 | 7.71 |
| FIP | 1.39 | 1.39 |
| WAR | 0.1 | 0.1 |
2026 Pitch
Selection
Selection
SI:48%
SL:20%
CH:18%
FA:8%
FC:8%
RosterResource
| How Acquired: | Draft |
| Draft: | 2021, Rd: 6, Pick: 14, Ovr: 176 |
| Draft Team: | San Francisco Giants |
| Signing Bonus: | $300,000 |
| College: | Ohio State |
Service Time
0.000MiLB Options
2
News
Rotowire: The Giants recalled Lonsway from Triple-A Sacramento on Saturday. (9/26/2026)
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| Season | Handedness | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | vs L | 0.2 | - - - | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .250 | .250 | .250 | .223 |
| 2026 | vs R | 1.2 | - - - | 10 | 6 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 1 | .600 | .600 | .600 | .534 |
| Season | Home / Away | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Home | 2.1 | 7.71 | 14 | 7 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 2 | .500 | .500 | .500 | .445 |
| 2026 | Home vs L | 0.2 | - - - | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .250 | .250 | .250 | .223 |
| 2026 | Home vs R | 1.2 | - - - | 10 | 6 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 1 | .600 | .600 | .600 | .534 |
| Season | Monthly | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Aug | 2.0 | 9.00 | 11 | 5 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 2 | .455 | .455 | .455 | .405 |
| 2026 | Sept/Oct | 0.1 | 0.00 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .667 | .667 | .667 | .593 |
| 2026 | 2nd Half | 2.1 | 7.71 | 14 | 7 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 2 | .500 | .500 | .500 | .445 |
| Season | Leverage | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Low Leverage | 2.0 | - - - | 12 | 6 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 2 | .500 | .500 | .500 | .445 |
| 2026 | Medium Leverage | 0.1 | - - - | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | .445 |
| Season | Situational | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Bases Empty | 0.2 | - - - | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .400 | .400 | .400 | .356 |
| 2026 | Men on Base | 1.2 | - - - | 9 | 5 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 1 | .556 | .556 | .556 | .494 |
| 2026 | Men In Scoring | 1.2 | - - - | 7 | 3 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 1 | .429 | .429 | .429 | .381 |
| Season | Through Count | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Through 3 - 2 | 0.0 | - - - | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 |
| 2026 | Through 2 - 0 | 0.1 | - - - | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| 2026 | Through 1 - 0 | 1.1 | - - - | 8 | 4 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | .500 | .500 | .500 | .445 |
| 2026 | Through 2 - 1 | 0.2 | - - - | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| 2026 | Through 1 - 1 | 0.2 | - - - | 6 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | .445 |
| 2026 | Through 0 - 1 | 1.0 | - - - | 3 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| 2026 | Through 2 - 2 | 0.1 | - - - | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .333 | .333 | .333 | .297 |
| 2026 | Through 1 - 2 | 0.0 | - - - | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | .445 |
| 2026 | Through 0 - 2 | 0.1 | - - - | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| Season | SP / RP | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | As Reliever | 2.1 | 7.71 | 14 | 7 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 2 | .500 | .500 | .500 | .445 |
| Season | Shifts | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Shift - All | 1.1 | - - - | 12 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .583 | .583 | .583 | .519 |
| 2026 | Shift - Traditional | 1.1 | - - - | 10 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | .445 |
| 2026 | Shift - Non Traditional | 0.0 | - - - | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 1.000 | .890 |
| Season | TTO | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | 1st Through Order as RP | 1.1 | 6.75 | 12 | 7 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | .583 | .583 | .583 | .519 |
| 2026 | 2nd Through Order as RP | 1.0 | 9.00 | 2 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| Season | Handedness | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | vs L | 0.2 | - - - | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .250 | .250 | .250 | .223 |
| 2026 | vs R | 1.2 | - - - | 10 | 6 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 1 | .600 | .600 | .600 | .534 |
| Season | Home / Away | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Home | 2.1 | 7.71 | 14 | 7 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 2 | .500 | .500 | .500 | .445 |
| 2026 | Home vs L | 0.2 | - - - | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .250 | .250 | .250 | .223 |
| 2026 | Home vs R | 1.2 | - - - | 10 | 6 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 1 | .600 | .600 | .600 | .534 |
| Season | Monthly | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Aug | 2.0 | 9.00 | 11 | 5 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 2 | .455 | .455 | .455 | .405 |
| 2026 | Sept/Oct | 0.1 | 0.00 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .667 | .667 | .667 | .593 |
| 2026 | 2nd Half | 2.1 | 7.71 | 14 | 7 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 2 | .500 | .500 | .500 | .445 |
| Season | Leverage | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Low Leverage | 2.0 | - - - | 12 | 6 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 2 | .500 | .500 | .500 | .445 |
| 2026 | Medium Leverage | 0.1 | - - - | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | .445 |
| Season | Situational | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Bases Empty | 0.2 | - - - | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .400 | .400 | .400 | .356 |
| 2026 | Men on Base | 1.2 | - - - | 9 | 5 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 1 | .556 | .556 | .556 | .494 |
| 2026 | Men In Scoring | 1.2 | - - - | 7 | 3 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 1 | .429 | .429 | .429 | .381 |
| Season | Through Count | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Through 3 - 2 | 0.0 | - - - | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 |
| 2026 | Through 2 - 0 | 0.1 | - - - | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| 2026 | Through 1 - 0 | 1.1 | - - - | 8 | 4 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | .500 | .500 | .500 | .445 |
| 2026 | Through 2 - 1 | 0.2 | - - - | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| 2026 | Through 1 - 1 | 0.2 | - - - | 6 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | .445 |
| 2026 | Through 0 - 1 | 1.0 | - - - | 3 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| 2026 | Through 2 - 2 | 0.1 | - - - | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .333 | .333 | .333 | .297 |
| 2026 | Through 1 - 2 | 0.0 | - - - | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | .445 |
| 2026 | Through 0 - 2 | 0.1 | - - - | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| Season | SP / RP | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | As Reliever | 2.1 | 7.71 | 14 | 7 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 2 | .500 | .500 | .500 | .445 |
| Season | Shifts | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Shift - All | 1.1 | - - - | 12 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .583 | .583 | .583 | .519 |
| 2026 | Shift - Traditional | 1.1 | - - - | 10 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | .445 |
| 2026 | Shift - Non Traditional | 0.0 | - - - | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 1.000 | .890 |
| Season | TTO | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | 1st Through Order as RP | 1.1 | 6.75 | 12 | 7 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | .583 | .583 | .583 | .519 |
| 2026 | 2nd Through Order as RP | 1.0 | 9.00 | 2 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |

