| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2025 proj | 4 | 4 | 0 | 0 | 61.0 | 62 | 19 | 39 | 32 | 4.72 | 1.328 | 3.9 |
| 2025 | 4 | 5 | 0 | 0 | 90.0 | 93 | 31 | 64 | 49 | 4.90 | 1.378 | 1.1 |
| 2024 | 4 | 4 | 0 | 0 | 60.7 | 62 | 19 | 39 | 32 | 4.75 | 1.335 | 4.3 |
| 2023 | 0 | 0 | 0 | 0 | 7.0 | 11 | 0 | 3 | 5 | 6.43 | 1.571 | -2.7 |
| Date | News |
| 8/29/25 | Seattle Mariners pitcher set for 'great' trial in bullpen. Emerson Hancock will be at the center of one of the bigger storylines to watch for the Seattle Mariners over the final month of the season. With the Mariners attempting to breakthrough for just their second playoff berth since 2002, Hancock has been converted from a starting pitcher to a reliver for the stretch run to bolster Seattle's shaky bullpen. After making 15 starts in the majors and nine more in Triple-A, the right-hander made a pair of appearances out of the bullpen recently for Tacoma, which included throwing the fastest pitch of his career at 99.1 mph in his second outing. The Mariners called Hancock up before their series finale with the San Diego Padres on Wednesday, but he has yet to make his MLB relief debut. Source: https://sports.mynorthwest.com/brock-and-salk/seat... |
| 8/27/25 | Mariners call up Emerson Hancock, this time to help with bullpen woes. After two appearances with Triple-A Tacoma, the Mariners' experiment to convert Emerson Hancock to a reliever will now continue at the Major League level. Source: https://www.seattletimes.com/sports/mariners/marin... |
| 8/25/25 | Seattle Mariners Pitcher Could Be on Verge of Game-Changing Breakout. Seattle Mariners pitcher Emerson Hancock made his second appearance in the Tacoma Rainiers bullpen on Sunday afternoon, hitting 99.1 mph on his fastball. Hancock, who has started 15 games for the Mariners this season, also turned heads with a devastating changeup as part of a scoreless inning. The Mariners appear dead set on giving Hancock a shot in the bullpen once September hits. Seattle is looking to clinch its first playoff berth since 2022 and has real questions at the low and mid-leverage spots in the bullpen, and Hancock could potentially help answer those. Source: https://www.si.com/mlb/mariners/news/seattle-marin... |
| 8/23/25 | Seattle Mariners pitcher Emerson Hancock ready to embrace move to bullpen. Emerson Hancock had started every game he's pitched since college until Wednesday. Here's why the Mariners are moving the former No. 6 overall pick to the bullpen. Source: https://www.seattletimes.com/sports/mariners/seatt... |
| 8/21/25 | Seattle Mariners' Latest Roster Decision Could Have Major Impact on Playoff Future. The Seattle Mariners made a previously unannounced roster move on Wednesday, as they transitioned starting pitcher Emerson Hancock to the bullpen at Triple-A Tacoma. Playing for the Rainiers, Hancock threw one inning, striking out one and walking one. A former first-round pick of the Mariners in 2020, Hancock had never made a relief appearance in professional baseball before Wednesday. First and foremost, the Mariners appear desperate for some bullpen help. Source: https://www.si.com/mlb/mariners/news/seattle-marin... |
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