The Marlins have claimed right-hander Seth Martinez off the Seattle waiver wire, as announced by the Mariners. It wasn’t known that Martinez had been designated for assignment, and Martinez only joined the Mariners on another waiver claim from Miami less than two weeks ago. The Marlins went on to announce that left-hander Andrew Nardi was placed on the 60-day injured list to make room for Martinez’s return to the 40-man roster.
Martinez, 30, was drafted by the Athletics in the 17th round of the 2016 draft but has spent his entire MLB career in an Astros uniform. The right-hander made his big league debut in 2021 for an ill-fated cup of coffee where he surrendered five runs across three innings of work, but provided solid middle relief work for the Astros since then. Martinez’s 2022 season was particularly impressive, as he dominated to the tune of a 2.09 ERA across 38 2/3 innings of work with a 24.5% strikeout rate against a 9.0% walk rate. That production wasn’t entirely supported by more advanced metrics, but his 3.32 FIP and 3.56 SIERA still suggested even his underlying performance was that of a quality relief arm.
Unfortunately, Martinez has not been able to maintain that level of success in the years since. The right-hander’s 2023 campaign was something of a disaster, as he struggled to a 5.23 ERA with a 4.42 FIP in 43 innings of work. While his ERA was inflated by a below-average strand rate and a more than 100-point jump in BABIP, his walk and home run rates both crept upwards as well to make the struggles more than simple bad luck. While the luck-based factors in Martinez’s 2023 season reversed in 2024, allowing him to post a solid 3.59 ERA in 52 2/3 frames for Houston last year, his skills took a major step backward as his strikeout rate plummeted to just 16.2% while he surrendered the most home runs of his career.
More to come…
