Michael Petersen Fantasy Stats

Miami Marlins right-handed reliever Michael Petersen has become a top stash candidate off the waiver wire for fantasy managers who are speculating on saves in the second half amid current closer Pete Fairbanks' struggles. Fairbanks leads the Fish with 13 saves on the season, but he also has an ERA over 7.00, a 1.52 WHIP, and a 10.1% walk rate. He blew his latest save chance on July 19 against the Milwaukee Brewers, allowing three earned runs with a walk and a strikeout in just one-third of an inning, and he has now given up 11 runs (10 earned) on 14 hits (four homers) with three walks and 10 K's for two saves and a blown save in his last 8 1/3 innings pitched since June 23. With the Marlins flailing of late, they could make a change in the ninth inning, and if they do, Petersen appears to be next in line. The 32-year-old English native has a 2.91 ERA (3.27 FIP), 0.99 WHIP, his first career save, 51 strikeouts, and 17 walks in 43 1/3 innings in 2026 in his first full year in Miami. At the very least, Petersen is valuable in holds leagues with 17 on the year. So far in seven innings in July, he's allowed just one earned run with four walks, seven K's, and four holds. Petersen is rostered in just under 10% of Yahoo leagues.

Miami Marlins reliever Michael Petersen has been excellent this season with a 2.91 ERA, 0.99 WHIP, 17 holds, and 51 strikeouts in 43 1/3 innings pitched (41 appearances). Peterson has primarily worked in the eighth inning of games, and at times the seventh inning to escape jams, and is the go-to guy for the Marlins to bridge the gap to Pete Fairbanks, whom the Marlins brought in on a one-year deal to close out games for the Fish. Fairbanks has struggled mightily this season, with a 7.42 ERA and 1.52 WHIP, and although he has converted on 13 of his 16 saves, he blew the save and took the loss on Sunday, allowing three earned runs on two hits, one walk, and one strikeout. At some point, the Marlins are going to need to move on from Fairbanks if he continues to struggle. The Marlins are sitting at 52-48 and are currently tied for the last spot in the NL Wild Card race, and can't afford any more hiccups. Peterson has clearly been more productive this season, so fantasy managers proactively looking to get ahead and grab a potential closer in the near future may want to look at grabbing Peterson.

Across 39 innings (41 games) so far this season, Miami Marlins right-hander Michael Petersen (hamstring) has pitched to a 3.07 ERA and 1.00 WHIP with 48 strikeouts and one save. Petersen exited early from Miami's final game before the All-Star break on Sunday with a hamstring injury, so fantasy managers should monitor for his health status coming out of the break. Assuming he can avoid a stint on the injured list, Petersen could be worth targeting on the waiver wire as a potential source of saves. The 32-year-old has arguably been the best arm in the Miami bullpen in 2026, as he's averaged 97.8 miles per hour on his fastball and has recorded a 29.4% strikeout rate. Miami has largely deployed Petersen in a setup role ahead of closer Pete Fairbanks. However, Fairbanks owns a 6.83 ERA and is allowing 2.17 HR/9 on the year. If the Marlins eventually decide to make a change in the ninth inning, Petersen could be next in line.

The Miami Marlins announced on Wednesday that they acquired right-hander Michael Petersen from the Atlanta Braves in exchange for cash considerations and optioned him to Triple-A Jacksonville. In a corresponding move, the team transferred right-hander Jesus Tinoco (forearm) from the 15-day injured list to the 60-day IL. Petersen made four relief appearances for the Braves this year, allowing three earned runs on seven hits (one homer) while walking two and striking out five in 6 2/3 frames. The 31-year-old has only thrown 26 1/3 innings in the big leagues and has a 5.47 ERA, 1.56 WHIP and 19:13 K:BB in 20 relief appearances. Tinoco has been out since early June with a strained right forearm and won't be eligible to return from the IL until Aug. 5. The Venezuelan reliever had a 5.12 ERA, 1.29 WHIP, a career-high four saves and 10 K's in 19 1/3 innings before his injury.

The Atlanta Braves acquired relief pitcher Michael Petersen from the Angels on Tuesday in exchange for cash considerations. He was optioned to Triple-A. This didn't come as a shock, as he had recently been designated for assignment by the Angels. He struggled in 2024 in 16 appearances, posting a 5.95 ERA and 1.63 WHIP with 14 strikeouts and 11 walks over 19 innings. He was much better in the minors, delivering a 1.64 ERA. Petersen isn't a name to watch for fantasy purposes, but he could see himself in Atlanta's big league bullpen at some point this year.

The Los Angeles Angels have designated right-handed pitcher Michael Petersen for assignment. This transaction opened a spot for left-handed pitcher Jake Eder, whom the Angels acquired from the Chicago White Sox for cash considerations on Monday. Last season, Petersen made his MLB debut and logged 19 2/3 innings in the majors. He posted a 5.95 ERA with a 1.63 WHIP. He tallied just 14 punchouts and served up a high 11 free passes. He spent most of his 2024 season with Triple-A Oklahoma City and posted a stellar 1.64 ERA with a 0.76 WHIP. He tallied 10 saves and held an 8:44 BB:K. Through the early part of the 2025 Triple-A campaign, Petersen tossed one 1/3 inning with Triple-A Salt Lake and allowed two earned runs. Given his success at Triple-A last summer, he may draw interest on waivers.

The Los Angeles Angels claimed right-hander Michael Petersen off waivers from the Toronto Blue Jays on Tuesday and designated right-hander Kelvin Caceres for assignment in a corresponding move to make room on the 40-man roster. Petersen will be on his fourth team of the offseason after being passed around from the Los Angeles Dodgers, Miami Marlins and Blue Jays. The 30-year-old will operate as minor-league pitching depth for the Angels heading into spring training. The former 17th-round pick by the Milwaukee Brewers in 2015 out of Riverside City College made his major-league debut with the Dodgers and Marlins this past season and had a 5.95 ERA and 1.63 WHIP with 14 strikeouts and 11 walks in 19 2/3 relief innings. Petersen is most likely to begin the 2025 season at Triple-A Salt Lake.

According to Scott Mitchell of TSN Sports, the Toronto Blue Jays designated right-handed pitcher Michael Petersen for assignment. This transaction opened a roster spot for right-handed pitcher Max Scherzer, who the team officially signed on Tuesday. Petersen made his MLB debut last season and logged 19 2/3 innings to the tune of a 5.94 ERA and a 1.63 WHIP. He struck out 14 batters and showed poor command as he held a high 12.2 percent walk rate. However, Petersen was effective at the Triple-A level, posting an impressive 1.64 ERA with a 0.76 WHIP across 33 frames. He struck out 44 batters and served up just eight free passes. Even though he only got a brief taste of the majors, he could draw interest on waivers, given his success at Triple-A.

The Toronto Blue Jays have claimed right-handed relief pitcher Michael Petersen off of waivers. Petersen spent the 2024 season with both the Miami Marlins and the Los Angeles Dodgers. Across 19 2/3 innings in the big leagues last season, the 30-year-old carried an underwhelming 5.95 ERA, 1.63 WHIP, with a 11:14 BB:K ratio. In Triple-A, Petersen posted a strong 1.64 ERA, 0.76 WHIP, and a stellar 8:44 BB:K ratio. He also tallied ten saves. Even though Peterson struggled in the big leagues last season, he showed significant upside in the top level of the minors. Fantasy managers should monitor his progression during Spring Training as he could eventually earn a high-leverage in the Toronto bullpen.