Mariners
First-inning scoring · #10 in MLB
The Mariners have scored in the first inning 31% of the time this 2026 season — 10th in MLB. That's 32% at home and 30% on the road. Over their last 10, they've put a run on the board in the 1st 3 times. On the other side, Mariners pitching allows a first-inning run 34% of the time (0.54 runs allowed per game).
| Split | G | Score rate | Runs/1st |
|---|---|---|---|
| Overall | 155 | 31% | 0.53 |
| Home | 74 | 32% | 0.57 |
| Away | 81 | 30% | 0.49 |
| Last 10 | 10 | 30% | 0.70 |
| Allowed (1st) | 155 | 34% | 0.54 |
vs Handedness
Informational splits — not model inputs.
| vs | G | Score rate | Runs/1st |
|---|---|---|---|
| vs LHP | 50 | 34% | 0.50 |
| vs RHP | 97 | 28% | 0.54 |
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