Isaac Mattson
IM
Isaac
Mattson
#72
6′2″ 31 yrs US
38 Games Played
5.35
ERA
#583
36
Strikeouts
#372
0
Wins
#506
1.6
WHIP
#639
38.2
Innings
#370
L
0
BB
18
H
44
HR
3
Career Statistics
Pitching
| Season | G | IP | W | L | ERA | WHIP | SO | BB | H | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| MLB 2024 | 3 | 5.1 | 0 | 0 | 5.06 | 1.13 | 6 | 5 | 1 | 0 |
| MLB 2025 | 43 | 47.2 | 3 | 3 | 2.45 | 1.07 | 45 | 17 | 34 | 4 |
| MLB 2026 | 38 | 38.2 | 0 | 0 | 5.35 | 1.6 | 36 | 18 | 44 | 3 |
| Career | 84 | 91.2 | 3 | 3 | 3.83 | 1.3 | 87 | 40 | 79 | 7 |
| MLB Spring Training 2026* | 6 | 7.1 | 2 | 0 | 0 | 0.55 | 10 | 2 | 2 | 0 |
* Not split by stage - all games included.
Game Log
IP: Innings Pitched · H: Hits Allowed · R: Runs · ER: Earned Runs · BB: Walks · K: Strikeouts · HR: Home Runs · PC-ST: Pitches-Strikes · W/L: Win/Loss Decision
Splits
Pitching
| Split | G | IP | W | L | ERA | WHIP | SO | BB | H | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| Home | 22 | 24.0 | 0 | 0 | 5.25 | 1.63 | 22 | 12 | 27 | 0 |
| Away | 16 | 14.2 | 0 | 0 | 5.52 | 1.57 | 14 | 6 | 17 | 3 |
vs. Opponents
| OPP | W-L | G | IP | W | L | ERA | WHIP | SO | BB | H | HR |
|---|---|---|---|---|---|---|---|---|---|---|---|
| WSHNationals | 1-3 | 4 | 5.1 | 0 | 0 | 6.75 | 1.69 | 3 | 2 | 7 | 2 |
| MILBrewers | 4-0 | 4 | 3.2 | 0 | 0 | 0.00 | 1.09 | 2 | 2 | 2 | 0 |
| CINReds | 1-3 | 4 | 4.1 | 0 | 0 | 0.00 | 0.46 | 4 | 1 | 1 | 0 |
| CHCCubs | 2-1 | 3 | 2.1 | 0 | 0 | 11.57 | 3.43 | 2 | 2 | 6 | 0 |
| PHIPhillies | 0-3 | 3 | 3.0 | 0 | 0 | 0.00 | 1.00 | 2 | 1 | 2 | 0 |
| CLEGuardians | 2-0 | 2 | 2.0 | 0 | 0 | 0.00 | 0.50 | 3 | 0 | 1 | 0 |
| STLCardinals | 0-2 | 2 | 1.0 | 0 | 0 | 45.00 | 5.00 | 1 | 2 | 3 | 0 |
| SDPadres | 1-1 | 2 | 1.2 | 0 | 0 | 0.00 | 1.80 | 2 | 0 | 3 | 0 |
| ARIDiamondbacks | 1-1 | 2 | 2.0 | 0 | 0 | 4.50 | 2.00 | 4 | 1 | 3 | 0 |
| NYMMets | 1-1 | 2 | 1.2 | 0 | 0 | 10.80 | 3.00 | 3 | 2 | 3 | 0 |
| TBRays | 1-1 | 2 | 2.0 | 0 | 0 | 0.00 | 0.00 | 1 | 0 | 0 | 0 |
| ATLBraves | 0-1 | 1 | 1.0 | 0 | 0 | 9.00 | 2.00 | 1 | 0 | 2 | 0 |
| DETTigers | 0-1 | 1 | 2.0 | 0 | 0 | 4.50 | 2.00 | 1 | 2 | 2 | 0 |
| OAKAthletics | 1-0 | 1 | 1.0 | 0 | 0 | 9.00 | 1.00 | 2 | 0 | 1 | 1 |
| SEAMariners | 0-1 | 1 | 1.0 | 0 | 0 | 0.00 | 0.00 | 1 | 0 | 0 | 0 |
| BALOrioles | 1-0 | 1 | 1.0 | 0 | 0 | 0.00 | 2.00 | 1 | 1 | 1 | 0 |
| MIAMarlins | 0-1 | 1 | 1.1 | 0 | 0 | 0.00 | 1.50 | 1 | 2 | 0 | 0 |
| LAAAngels | 0-1 | 1 | 2.0 | 0 | 0 | 13.50 | 2.00 | 2 | 0 | 4 | 0 |
| SFGiants | 0-1 | 1 | 0.1 | 0 | 0 | 54.00 | 9.00 | 0 | 0 | 3 | 0 |
