Mariners
First-inning scoring · #6 in MLB
The Mariners have scored in the first inning 35% of the time this 2026 season — 6th in MLB. That's 43% at home and 29% 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 28% of the time (0.42 runs allowed per game).
| Split | G | Score rate | Runs/1st |
|---|---|---|---|
| Overall | 79 | 35% | 0.53 |
| Home | 37 | 43% | 0.68 |
| Away | 42 | 29% | 0.41 |
| Last 10 | 10 | 30% | 0.50 |
| Allowed (1st) | 79 | 28% | 0.42 |
vs Handedness
Informational splits — not model inputs.
| vs | G | Score rate | Runs/1st |
|---|---|---|---|
| vs LHP | 21 | 38% | 0.57 |
| vs RHP | 52 | 35% | 0.54 |