Seattle Mariners 2021 Grades: Part 5 – Relief Pitchers

Joe Swenson   |  

Nov 17, 2021

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Featuring: The other relievers with at least 23 appearances with the Mariners

Erik Swanson: 3.31 ERA, 1.075 WHIP, 1 save – B+ Relief, B Control, B Dominance

Will Vest: 6.17 ERA, 1.600 WHIP, 0 saves – D Relief, F Control, F Dominance

Kendall Graveman: 0.82 ERA, 0.697 WHIP, 10 saves – A+ Relief, A+ Control, A+ Dominance

Kenyan Middleton: 4.94 ERA, 1.581 WHIP, 4 saves – D+ Relief, F Control, D Dominance

JT Chargois: 3.00 ERA, 0.967 WHIP, 0 Saves – B+ Relief, A Control, B+ Dominance

Yohan Ramirez: 3.90 ERA, 1.084 WHIP, 2 Saves – C+ Relief, B+ Control, A Dominance

Diego Castillo: 2.86 ERA, 0.956 WHIP, 2 Saves – B+ Relief, A Control, A- Dominance

Joe Smith: 2.00 ERA, 0.889 WHIP, 0 Saves – A Relief, A Control, A- Dominance

In Closing

The 2021 Seattle Mariners ended up with one of the most dominating bullpens in the league over the final four months of the season. Once Vest and Montero were gone, the Mariner relievers really started cooking, finishing with a final month that led the league in Bullpen ERA (2.88), Saves (13), and was in the top five in a myriad of other statistical categories.

If you missed any of the previous parts of this series, please click the link. Part 1 – Infield, Part 2 – Outfield, Part 3 – Catchers, Part 4 – Starting Pitchers.

Joe Swenson is an avid baseball fan with lots of experience on and off the field. In addition, he writes, produces, directs, and even sings and writes songs in his spare time, of which he has little at present.

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