Cooper Criswell P SEA Fri 1/23/26 6:01 PM
Cooper Criswell
P SEA
The Mets traded Criswell to the Mariners on Friday in exchange for cash, Jorge Castillo of ESPN.com reports.
EDGE Analysis
The 29-year-old was DFA'd by the Mets on Wednesday following the team's acquisition of Freddy Peralta and Tobias Myers, but Criswell will recapture a 40-man spot upon moving to Seattle. He posted a 3.57 ERA and 1.58 WHIP in 17.2 regular-season innings with the Red Sox in 2025 and will compete for a spot in the Mariners' bullpen during spring training.
Cooper Criswell P SEA Wed 1/21/26 10:58 PM
Cooper Criswell
P SEA
The Mets designated Criswell for assignment Wednesday, Anthony DiComo of MLB.com reports.
EDGE Analysis
Criswell will end up as the roster casualty necessary to create space on the Mets' 40-man following the acquisition of Freddy Peralta and Tobias Myers from Milwaukee on Wednesday. Criswell made seven regular-season appearances with the Red Sox last year, during which he logged a 3.57 ERA and 1.58 WHIP across 17.2 innings. If he passes through waivers unclaimed, he will likely spend the majority of 2026 at Triple-A Syracuse with a chance to make an occasional appearance in the majors.
Cooper Criswell P SEA Fri 12/5/25 1:52 PM
Cooper Criswell
P SEA
The Mets claimed Criswell off waivers from the Red Sox on Friday, Jorge Castillo of ESPN.com reports.
EDGE Analysis
Criswell had been designated for assignment following Boston's five-player trade with Pittsburgh on Thursday. The 29-year-old has been a useful swingman for the Red Sox the last two seasons, holding a 4.00 ERA and 82:36 K:BB over 117 innings covering 19 starts and 14 relief appearances. Criswell does not have minor-league options remaining but is not yet arbitration-eligible, so the Mets will have several years of control of the righty.
Cooper Criswell P SEA Thu 12/4/25 8:28 PM
Cooper Criswell
P SEA
The Red Sox designated Criswell for assignment Thursday, Chris Cotillo of MassLive.com reports.
EDGE Analysis
The Red Sox re-signed Criswell to a one-year contract in early November, but he'll lose his roster spot less than one month later. He spent the majority of the 2025 season with Triple-A Worcester and should have the chance to contribute as a reliever at some point in 2026 if he sticks with the organization.
Cooper Criswell P SEA Thu 11/6/25 2:18 PM
Cooper Criswell
P SEA
Criswell signed a one-year, $800,000 contract with the Red Sox on Thursday, Robert Murray of FanSided.com reports.
EDGE Analysis
Criswell appeared in seven games for Boston in 2025, finishing the regular season with a 3.57 ERA and 1.58 WHIP through 17.2 innings. He put up similar numbers at Triple-A Worcester (3.70 ERA, 1.35 WHIP) before elbow inflammation put an early end to his season in late August. The 29-year-old righty doesn't have any more minor-league options remaining, so he will have to make the Red Sox's Opening Day roster to avoid losing his 40-man spot.
Cooper Criswell P SEA Wed 8/20/25 9:06 PM
Cooper Criswell
P SEA
Criswell was placed on the 7-day injured list by Triple-A Worcester on Wednesday due to right elbow inflammation, Chris Cotillo of MassLive.com reports.
EDGE Analysis
Criswell has spent most of the 2025 season at Triple-A but has appeared in seven games (one start) with the Red Sox, logging a 3.57 ERA, 1.59 WHIP and 9:5 K:BB across 17.2 innings of work. He owns a 4-2 record, 3.70 ERA, 1.34 WHIP and 68:28 K:BB across 65.2 innings at Triple-A.
Cooper Criswell P SEA Sat 8/2/25 12:07 PM
Cooper Criswell
P SEA
The Red Sox optioned Criswell to Triple-A Worcester on Saturday.
EDGE Analysis
Criswell fired seven innings of one-run ball Friday against the Astros, but he'll end up as the roster casualty necessary to make room for Dustin May in Boston's rotation. Criswell sports a 3.57 ERA through 17.2 innings with the Red Sox this season and would likely be the next man up if any of Boston's starters need to miss time down the stretch.
Cooper Criswell P SEA Fri 8/1/25 10:48 PM
Cooper Criswell
P SEA
Criswell did not factor into the decision in Friday's 2-1 extra-inning win over the Astros, allowing one run on seven hits and two walks with four strikeouts over seven innings.
EDGE Analysis
Criswell allowed just a solo homer in the second inning and otherwise kept the Astros in check, needing only 84 pitches to complete seven strong frames in his first start and seventh major-league appearance of the season. The 29-year-old now owns a 3.57 ERA, 1.58 WHIP and 9:5 K:BB across 17.2 innings with the Red Sox, though Friday's outing was likely just a spot start with Dustin May in line to take the fifth spot in the team's rotation.
Cooper Criswell P SEA Fri 8/1/25 11:15 AM
Cooper Criswell
P SEA
Criswell will start Friday's game against the Astros, Chris Cotillo of MassLive.com reports.
EDGE Analysis
The right-hander was called up from Triple-A Worcester on Tuesday and will step into Boston's rotation to fill the spot vacated by Richard Fitts' demotion earlier this week. Criswell, who's worked out of the bullpen in each of his six MLB appearances this year, has a 5.06 ERA, 1.78 WHIP and 5:3 K:BB over 10.2 innings. The 29-year-old righty may be in line for just a spot start, as the newly acquired Dustin May is scheduled to start Sunday's series finale and could stick as the fifth member of the rotation over Criswell moving forward.
Cooper Criswell P SEA Tue 7/29/25 1:50 PM
Cooper Criswell
P SEA
The Red Sox recalled Criswell from Triple-A Worcester Tuesday, Chris Cotillo of MassLive.com reports.
EDGE Analysis
Criswell will provide some much-needed length in the Boston bullpen after Richard Fitts lasted only four innings in Monday's loss to the Twins. The veteran righty has made six relief appearances with the Red Sox in 2025, allowing nine runs (six earned) with a 5:3 K:BB over 10.2 frames.