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Aaron Fletcher
Trending: ↑ 73%
P | B/T: L/L | 6' 0" 220LBS | Age: 24

Draft: 2018 | Rd: 14, #431, Washington Nationals | Houston
MLB Pipeline Rank
Poor Avg Great


2020 0 0 12.46 6 0 0 4.1 7 3.23
1 Season 0 0 12.46 6 0 0 4.1 7 3.23
2020 6 0-0 12.46 4.1 7 3.23
1 Season 6 0-0 12.46 4.1 7 3.23

Standard MLB Pitching Statistics

2020 SEA AL 29 0 0 12.46 6 0 0 4.1 7 6 6 1 7 7 3.23
*: All Star Season, Rankings AL/NL: Top 5 10 15 20      Click for Chart.

Scouting Report


Fletcher started his career at the University of Houston with a successful turn in the bullpen as a freshman, but ended up needing Tommy John surgery in his sophomore year. He closed as a redshirt sophomore then moved to the rotation in 2018 and pitched well enough to attract the attention of the Nationals, who took him in the 14th round. He moved back into a full-time bullpen role in 2019 and pitched his way across three levels to Double-A before being sent to the Mariners in return for Hunter Strickland. Fletcher then went and was one of the most dominant relievers in the Arizona Fall League.

Fletcher uses a cross-fire delivery, hiding the ball well so hitters can’t pick it up, allowing his stuff to play up. And he’s got plenty of stuff. He was 94-95 mph in the AFL with good life and his above-average slider is a very effective weapon. It has really good action and especially in the Fall League, he threw quality strikes with it. The slider works especially against left-handed hitters, but Fletcher also has a decent changeup that works against righties, though he’ll have to continue to show conviction in throwing it.

After being pretty dominant in Double-A post-trade, Fletcher excited the Mariners even more with how good he was in the AFL. He’s not far from being ready to impact the big league bullpen, with him looking like he might be more than the lefty specialist some projected him to be.

Statcast - Pitching

Season Pitches Batted Balls Barrels Barrel % Exit Velocity Launch Angle Sweet Spot % XBA XSLG WOBA XWOBA XWOBACON Hard Hit % K % BB % ERA xERA
2020 121 13 2 15.4 92 7.7 38.5 .282 .476 .475 .440 .500 46.2 24.1 24.1 12.46 8.7
ALL 121 13 2 15.4 92 7.7 38.5 .282 .476 .475 .440 .500 46.2 24.1 24.1
MLB 43265 6.4 88.3 11.9 32.8 .250 .416 .317 .322 .378 34.8 21.8 8.3


Team Date Transaction
09/14/2020 Seattle Mariners optioned LHP Aaron Fletcher to Mariners Alternate Training Site.
08/21/2020 Seattle Mariners selected the contract of LHP Aaron Fletcher from Mariners Alternate Training Site.
07/18/2020 LHP Aaron Fletcher assigned to Mariners Alternate Training Site from Arkansas Travelers.
01/22/2020 Seattle Mariners invited non-roster LHP Aaron Fletcher to spring training.
08/28/2019 LHP Aaron Fletcher assigned to Peoria Javelinas.
08/01/2019 LHP Aaron Fletcher assigned to Arkansas Travelers.
07/31/2019 Washington Nationals traded LHP Aaron Fletcher, RHP Elvis Alvarado and LHP Taylor Guilbeau to Seattle Mariners for RHP Hunter Strickland and LHP Roenis Elias.
07/18/2019 LHP Aaron Fletcher assigned to Harrisburg Senators from Potomac Nationals.
05/29/2019 LHP Aaron Fletcher assigned to Potomac Nationals from Hagerstown Suns.
04/02/2019 LHP Aaron Fletcher assigned to Hagerstown Suns from Auburn Doubledays.
06/23/2018 LHP Aaron Fletcher assigned to Auburn Doubledays from GCL Nationals.
06/22/2018 LHP Aaron Fletcher assigned to GCL Nationals.
06/13/2018 Washington Nationals signed LHP Aaron Fletcher.