I didn't find anything for this season, but Ben Williamson had the most at-bats by a Mariners rookie in 2025, with 277 at-bats.
Interpreted as:
most at-bats by a Mariners rookie this regular season| NAME | AB | SEASON | TM | G | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | OBP | SLG | OPS | wRC | WRAA | wOBA | wRC+ | BRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | B. Williamson | 277 | 2025 | 85 | 36 | 70 | 13 | 0 | 1 | 21 | 15 | 1 | 64 | 5 | 1 | 295 | 86 | 14 | 2 | 0 | 0 | 5 | .253 | .294 | .310 | .604 | 24 | -10.5 | .269 | 76 | -8.4 | |
| 2 | | C. Young | 223 | 2025 | 77 | 24 | 47 | 7 | 1 | 4 | 24 | 28 | 2 | 47 | 1 | 0 | 257 | 68 | 12 | 2 | 2 | 1 | 4 | .211 | .302 | .305 | .607 | 22 | -8.2 | .274 | 79 | -6.3 | |
| 3 | | L. Rivas | 90 | 2025 | 48 | 19 | 22 | 2 | 0 | 2 | 9 | 20 | 1 | 24 | 6 | 0 | 111 | 30 | 4 | 0 | 0 | 0 | 1 | .244 | .387 | .333 | .721 | 15 | 1.8 | .333 | 120 | 2.7 | |
| 4 | | R. Bliss | 35 | 2025 | 11 | 1 | 7 | 1 | 0 | 1 | 3 | 4 | 0 | 11 | 2 | 2 | 39 | 11 | 2 | 0 | 0 | 0 | 2 | .200 | .282 | .314 | .596 | 3 | -1.4 | .268 | 76 | -1.1 | |
| 5 | | S. Taylor | 8 | 2025 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 9 | 1 | 0 | 1 | 0 | 0 | 0 | .125 | .125 | .125 | .250 | 0 | -1.5 | .110 | -33 | -1.4 | |
| 6 | | R. Thomas | 8 | 2025 | 3 | 2 | 1 | 1 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 10 | 2 | 1 | 0 | 1 | 0 | 0 | .125 | .200 | .250 | .450 | 0 | -1 | .194 | 25 | -0.9 | |
| 7 | | H. Ford | 6 | 2025 | 8 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 3 | 0 | 0 | 8 | 1 | 0 | 0 | 1 | 0 | 0 | .167 | .250 | .167 | .417 | 0 | -0.7 | .201 | 29 | -0.7 |
SEAMore Mariners Stats
Team Batting Leaders 
HR
3
Raley
RBI
8
Young
AVG
.370
Donovan
Team Pitching Leaders 
W
1
Muñoz
K
15
Woo
ERA
0.71
Hancock
Team Rankings
HR
9
13th
R
37
17th
SO
104
4th
ERA
2.72
4th
Astros
Angels
Rangers
Athletics
MLB 2026 Batting Leaders
MLB 2026 Pitching Leaders
MLB Fantasy 2026
MLB 2026 Betting
MLB 2026 Standings
| NL East | W | L | PCT | GB |
|---|---|---|---|---|
6 | 3 | .667 | ||
6 | 4 | .600 | 0.5 | |
6 | 4 | .600 | 0.5 | |
5 | 4 | .556 | 1.0 | |
3 | 6 | .333 | 3.0 | |
| NL Central | W | L | PCT | GB |
7 | 2 | .778 | ||
6 | 3 | .667 | 1.0 | |
6 | 3 | .667 | 1.0 | |
5 | 4 | .556 | 2.0 | |
4 | 5 | .444 | 3.0 | |
| NL West | W | L | PCT | GB |
7 | 2 | .778 | ||
5 | 5 | .500 | 2.5 | |
4 | 5 | .444 | 3.0 | |
3 | 6 | .333 | 4.0 | |
3 | 7 | .300 | 4.5 |
Marlins
Braves
Mets
Phillies
Nationals
Brewers
Reds
Pirates
Cardinals
Cubs
Dodgers
Diamondbacks
Padres
Rockies
Giants| AL East | W | L | PCT | GB |
|---|---|---|---|---|
7 | 2 | .778 | ||
4 | 5 | .444 | 3.0 | |
4 | 5 | .444 | 3.0 | |
3 | 6 | .333 | 4.0 | |
2 | 7 | .222 | 5.0 | |
| AL Central | W | L | PCT | GB |
6 | 4 | .600 | ||
4 | 5 | .444 | 1.5 | |
4 | 5 | .444 | 1.5 | |
4 | 5 | .444 | 1.5 | |
3 | 6 | .333 | 2.5 | |
| AL West | W | L | PCT | GB |
6 | 4 | .600 | ||
5 | 5 | .500 | 1.0 | |
4 | 5 | .444 | 1.5 | |
4 | 6 | .400 | 2.0 | |
3 | 6 | .333 | 2.5 |
Yankees
Rays
Blue Jays
Orioles
Red Sox
Guardians
White Sox
Tigers
Royals
Twins
