
While the majority of the Twins’ bullpen struggled to close games, Duran was invaluable all season long. He led American League relievers in Win Probability Added (4.59), frequently facing the opponent’s best hitters in the highest leverage spots. Duran’s “clutch” score registered at 1.26, also the highest in the AL.
If you looked only at Duran on the surface, you’d crown him as one of the best relievers in baseball. His incredible season was impressive without context. The context, however, is where the magic lies. Duran was a rookie thrust into the tightest spots for a team fighting for the playoffs. He had never pitched in relief before 2022, save for a couple games at Triple-A in 2019 and 2021.
After working at the Twins' alternate site in 2020, Duran threw only 16 innings a season ago in St. Paul. He had a 5.06 ERA before an elbow injury shut down his season, putting his future in question. Duran dazzled in spring training and earned a spot on the Opening Day roster. Even the most optimistic believers in Duran’s incredible stuff couldn’t have predicted what came next.
Among pitchers who threw at least 250 offerings in 2022, Duran’s four-seamer ranked first in average velocity (100.8). His splitter also paced the league at a ridiculous 96.4 mph. Duran unquestionably has the best raw stuff in Twins history and one of the most electrifying repertoires the game has ever seen.
There have been plenty of young pitchers with electric arms but Duran’s command is the separator. His 27.4% strikeout-to-walk rate was tied for 10th among qualified relievers, ahead of Cleveland phenom Emmanuel Clase. Duran throws extremely hard and he throws strikes. That combo led to nearly three Wins Above Replacement at Baseball Reference.
Duran worked through early pitch-selection pains and got better as the season went on. Only two AL relievers had a lower ERA than Duran in the second half (1.05), minimum of 25 innings. The rookie was also lights-out in front of the home crowd, posting a 0.83 ERA at Target Field, the lowest in a season in the park’s history.
Handing your most pivotal bullpen spot to a rookie can be a risky proposition, given the pressure of that role. Duran was unfazed. With two outs and runners in scoring position, Duran held opponents to a 1-for-25 mark, with the lone hit a single. In high-leverage situations, opponents hit .180 with a .489 OPS. Duran’s pulse is impossible to see.
Twins fans were understandably sad to see the team trade Eduardo Escobar at the 2018 deadline. The reward, however, looks to be potentially game-changing. Duran has instantly become one of the game’s best relievers and he’s under contract with the Twins through at least 2027. He’s a joy to watch.
HONORABLE MENTIONS
Sonny Gray
The Twins traded their first-round pick from a year ago for Sonny Gray, who was very good when healthy in his first season as a Twin. Gray had trouble staying healthy and pitching deep into games, but his 3.08 ERA and 3.41 FIP show he’s still a frontline starter.
Griffin Jax
Also in his first season as a full-time reliever, Griffin Jax enjoyed a massive spike in velocity and effectiveness. Jax posted a solid 3.36 ERA in 65 games, regularly setting up Duran as the second-best reliever in the bullpen. Jax averaged over 95 mph with his four-seamer and produced a 37% whiff rate on his elite, high-spin slider.
Caleb Thielbar
Caleb Thielbar is another example of why we should trust the expected statistics. A ballooned ERA was backed by much better metrics early in 2022. Thielbar was outstanding in the second half with a 1.50 ERA and 33 strikeouts in 24 innings. The lefty filled in more than admirably for Taylor Rogers.
Joe Ryan
Joe Ryan set the Twins’ single-season rookie record for strikeouts, backed by a 3.55 ERA in a team-leading 147 innings. Ryan was exceptional down the stretch with a 2.81 ERA over his last nine starts. Still just a rookie, Ryan has been impressive for many of his now 32 starts in the big leagues.
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