The Seattle Mariners had their highest over/under record in a season in 2019, with a record of 87-67-8.
Interpreted as:
mariners record o/u record in a season| TEAM | SEASON | ATS | ATS COV % | ATS AVG | O/U REC | O/U AVG | G | W% | W | L | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | OBP | SLG | OPS | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Mariners | 2019 | 80-82 | 49.4 | -0.1 | 87-67-8 | +0.9 | 162 | .420 | 68 | 94 | 5,500 | 758 | 1,305 | 254 | 28 | 239 | 730 | 588 | 58 | 1,581 | 115 | 47 | 6,197 | 2,332 | 521 | 14 | 37 | 7 | 83 | .237 | .316 | .424 | .740 |
| 2 | | Mariners | 2021 | 92-70 | 56.8 | +0.4 | 82-74-6 | +0.5 | 162 | .556 | 90 | 72 | 5,355 | 697 | 1,209 | 233 | 11 | 199 | 673 | 535 | 72 | 1,492 | 64 | 24 | 6,007 | 2,061 | 443 | 9 | 36 | 8 | 92 | .226 | .303 | .385 | .688 |
| 3 | | Mariners | 2016 | 80-82 | 49.4 | +0.1 | 81-76-5 | +0.9 | 162 | .531 | 86 | 76 | 5,583 | 768 | 1,446 | 251 | 17 | 223 | 735 | 506 | 72 | 1,288 | 56 | 28 | 6,226 | 2,400 | 491 | 24 | 41 | 29 | 138 | .259 | .326 | .430 | .756 |
| 4 | | Mariners | 2023 | 77-85 | 47.5 | +0 | 80-72-10 | +0.6 | 162 | .543 | 88 | 74 | 5,500 | 758 | 1,333 | 282 | 12 | 210 | 728 | 548 | 111 | 1,603 | 118 | 30 | 6,200 | 2,269 | 504 | 4 | 37 | 14 | 95 | .242 | .321 | .413 | .734 |
| 5 | | Mariners | 2018 | 78-84 | 48.1 | -0.2 | 78-80-4 | +0.1 | 162 | .549 | 89 | 73 | 5,513 | 677 | 1,402 | 256 | 32 | 176 | 644 | 430 | 70 | 1,221 | 79 | 37 | 6,083 | 2,250 | 464 | 29 | 41 | 17 | 128 | .254 | .314 | .408 | .722 |
| 6 | | Mariners | 2022 | 88-79 | 52.7 | +0.4 | 77-82-8 | +0.4 | 167 | .551 | 92 | 75 | 5,577 | 713 | 1,281 | 243 | 20 | 201 | 685 | 613 | 92 | 1,456 | 84 | 28 | 6,337 | 2,167 | 464 | 9 | 46 | 19 | 122 | .230 | .314 | .389 | .702 |
| 7 | | Mariners | 2024 | 74-87 | 45.7 | -0.1 | 76-73-13 | +0.3 | 162 | .525 | 85 | 77 | 5,330 | 676 | 1,195 | 228 | 13 | 185 | 642 | 571 | 116 | 1,625 | 140 | 28 | 6,065 | 2,004 | 426 | 14 | 34 | 13 | 106 | .224 | .311 | .376 | .687 |
| 8 | | Mariners | 2017 | 71-91 | 43.8 | -0.1 | 74-80-8 | +0.4 | 162 | .481 | 78 | 84 | 5,551 | 750 | 1,436 | 281 | 17 | 200 | 714 | 487 | 78 | 1,267 | 89 | 35 | 6,165 | 2,351 | 498 | 14 | 35 | 31 | 131 | .259 | .325 | .424 | .749 |
| 9 | | Mariners | 2020 | 33-27 | 55 | +0.3 | 33-24-3 | +0.7 | 60 | .450 | 27 | 33 | 1,929 | 254 | 435 | 88 | 5 | 60 | 244 | 207 | 30 | 545 | 50 | 16 | 2,181 | 713 | 153 | 3 | 12 | 5 | 35 | .226 | .309 | .370 | .678 |
| 10 | | Mariners | 2025 | 25-27 | 48.1 | -0.2 | 27-23-2 | +0.9 | 52 | .558 | 29 | 23 | 1,762 | 238 | 418 | 66 | 3 | 70 | 230 | 206 | 28 | 469 | 49 | 15 | 2,015 | 700 | 139 | 8 | 11 | 3 | 30 | .237 | .325 | .397 | .722 |
StatMuse has team, game-level data for over/under records going back to the 2016 season.
Some of the information used here was obtained free of charge from Retrosheet.
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