Mariners
First-inning scoring · #11 in MLB
The Mariners have scored in the first inning 31% of the time this 2026 season — 11th in MLB. That's 36% at home and 26% on the road. Over their last 10, they've put a run on the board in the 1st 4 times. On the other side, Mariners pitching allows a first-inning run 33% of the time (0.53 runs allowed per game).
| Split | G | Score rate | Runs/1st |
|---|---|---|---|
| Overall | 138 | 31% | 0.52 |
| Home | 66 | 36% | 0.64 |
| Away | 72 | 26% | 0.42 |
| Last 10 | 10 | 40% | 0.60 |
| Allowed (1st) | 138 | 33% | 0.53 |
vs Handedness
Informational splits — not model inputs.
| vs | G | Score rate | Runs/1st |
|---|---|---|---|
| vs LHP | 40 | 30% | 0.42 |
| vs RHP | 88 | 30% | 0.56 |
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