The Rays have called left-hander Ian Seymour up from Triple-A Durham, with right-hander Cole Sulser optioned to Triple-A in the corresponding move. No 40-man move was required, as Tampa already added Seymour to its 40-man roster last November in advance of the Rule 5 Draft.
The 26-year-old Seymour will be making his Major League debut whenever he makes his first appearance for the Rays. A second-round pick for Tampa Bay in the 2020 draft, Seymour’s pro career hit some immediate roadblocks when flexor soreness and then a Tommy John surgery limited him to just 114 innings over the 2021-23 seasons. If it wasn’t for these health issues, Seymour might well have been in the bigs years ago, as he had already been promoted up to the Triple-A level before the 2021 campaign was over.
Seymour kept the momentum going after his return from TJ rehab. He posted a 2.35 ERA over 145 1/3 combined Double-A and Triple-A innings in 2024, and this season has a 2.95 ERA, 32.7% strikeout rate, and 5.8% walk rate over 61 frames with Durham (starting 11 of 12 games). Baseball America ranks Seymour 15th on their list of the Rays’ top 30 prospects, while MLB Pipeline has him 19th in their ranking of the Tampa Bay farm system.
If these rankings seem a little modest for a starter with Seymour’s numbers, it could be because Seymour’s average fastball velocity only sits in the low-90s. That said, the pitch is still effective, and acts as a nice secondary offering to Seymour’s plus changeup. As Baseball America’s scouting report puts it, Seymour relies on a “combination of command and deception” more than pure stuff, and his results in the minors “will be hard to fully replicate” against big league hitters. Seymour has started 69 of his 71 career games, though evaluators feel he might be more suited to a swingman or bulk pitcher role at the MLB level.
Given their long history of pitcher development and creative usage of their arms, the Rays are ideally suited to manage Seymour’s entry into the Show. Seymour looks to be working as a reliever at first, since Tampa Bay could use a fresh arm after using seven different pitchers in yesterday’s 11-10 extra-innings loss to the Marlins. The steady Drew Rasmussen is starting today but hasn’t gone beyond six innings in any of his 12 starts this season, and the Rays’ next off-day isn’t until Thursday. Seymour joins Garrett Cleavinger and Mason Montgomery as the left-handed options in Tampa’s pen.