Drew Rasmussen has pitched into the fifth inning in every start he’s made in 2025. That might not seem so impressive, but Rasmussen is one of just 28 pitchers to have recorded an out in the fifth in 13 or more starts this year. That’s fewer than one per team. Not to mention, he’s coming off internal brace surgery, the third major elbow procedure of his career. Few major leaguers have ever returned from a third such surgery, let alone returned and thrived as the kind of arm a team can count on for five innings every five days.
Even better for Rasmussen and the Rays, his innings stand out for their quality as much as their quantity. In 12 of his 13 starts, he has thrown at least five frames whilst allowing no more than seven baserunners and four runs. No other pitcher – not Paul Skenes, not Jacob deGrom, not Zack Wheeler – has made as many starts that fit that description. All told, the 29-year-old has a 2.22 ERA, the eighth-lowest among qualified AL starters, right in between preseason Cy Young favorites Tarik Skubal and Garrett Crochet. His 0.90 WHIP ranks third, just behind Skubal’s and just ahead of deGrom’s. Underlying those strong results are a 5.3% walk rate, a 50.8% groundball rate, and a 4.8% barrel rate, all of which rank him among the AL’s best. None of his ERA estimators (3.43 SIERA, 3.16 xERA, 3.23 FIP, and 3.31 xFIP) is quite as strong as his low-2.00s ERA, but they’re all still excellent numbers, and only four qualified AL starters have him beat in all four metrics: Skubal, Crochet, Kris Bubic, and Hunter Brown. Those are four of the most exciting young hurlers in the league.
Rasmussen has often flown under the radar, but his ace-like performance this year is hardly coming out of nowhere. Since he arrived in Tampa Bay as part of the Willy Adames trade in 2021, he has pitched to a 2.62 ERA in 347 1/3 innings. He has also compiled 8.2 FanGraphs WAR and 8.8 Baseball Reference WAR in that time. That works out to roughly four wins above replacement per 162 innings, an All-Star-caliber clip. Just as impressive is his consistency. In parts of five seasons with the Rays, he has never had an ERA higher than 2.84. Of course, injuries have severely limited his playing time – he threw 59 innings for Tampa Bay in 2021, 146 in 2022, 44 2/3 in 2023, 28 2/3 in 2024, and he’s thrown 69 so far in 2025 – but his steady excellence is remarkable all the same. Before and after each stint on the IL, Rasmussen has remained dominant. We’re also talking about a guy with the underlying metrics and phenomenal stuff to back up his great results. Since he joined the Rays, only three pitchers have thrown more innings than Rasmussen with a lower SIERA, xERA, FIP, and xFIP: Skubal, Chris Sale, and Spencer Strider. Meanwhile, the comprehensive pitch models at FanGraphs, PitchingBot and Pitching+, both suggest his arsenal has been well above average in every season of his Rays tenure.
So, on the one hand, we’re looking at a pitcher who has excelled at every turn over the past five years. On the other hand, that same pitcher has never thrown more than 146 innings in a season. His second-highest single-season innings total at the MLB level is 76. Both of those campaigns came before his third major elbow surgery. In other words, all of Rasmussen’s stats come from a relatively small sample. Furthermore, we have no way to know for sure that he is capable of pitching a full, qualified season without tiring down the stretch. Most important of all, he’s an injury risk, and he will carry that label for perhaps the rest of his career. So, even in a best-case scenario in which Rasmussen continues to shine and shows no sign of slowing down, the Rays will have to manage his workload carefully. At some point, Kevin Cash might stop him from pitching into the fifth inning every start. It’s not out of the question that Rasmussen could eventually move to the bullpen if the Rays are particularly worried about his innings.
Rasmussen has pitched like an ace so far in 2025. Indeed, on a per-inning basis, he’s been one of the most effective arms in the game since he landed with the Rays in 2021. Yet, it’s far from a guarantee he can keep this up over the next several months. So, what do MLBTR readers think? Has Rasmussen done enough to prove he’s one of the game’s premier starting pitchers? Or will his injury history and lack of experience catch up with him as the season wears on? Have your say in today’s poll:
