Yes, Eduardo Rodriguez is a starting pitcher, and right now he is one of the most important arms in the Arizona Diamondbacks rotation. In the 2026 regular season, he made 32 starts and threw 189 2/3 innings. He finished 16-7 with a 2.90 ERA and a 1.24 WHIP.
Those numbers made 2026 the best season of his career. He also made his first All-Star team and pitched in the All-Star Game in July. That is not the profile of a long reliever or a swingman. It is the profile of a front-line starter who takes the ball every fifth day.
A Career Built in the Starting Rotation
Rodriguez has been a starting pitcher for almost his entire major league career. Through his final start of 2026, 267 of his 273 big-league appearances came as a starter. Teams have always viewed him as a rotation arm, not a bullpen option.
The left-hander from Valencia, Venezuela, debuted with the Boston Red Sox in 2015. He was part of Boston’s 2018 World Series championship club, and his breakout came in 2019, when he went 19-6 with a 3.81 ERA and 213 strikeouts. That season proved he could handle a full starter’s workload of more than 200 innings.
After missing the 2020 season with myocarditis, he returned in 2021 and then signed a five-year deal with the Detroit Tigers. He made 43 starts over two seasons in Detroit. His 2023 campaign, with a 3.30 ERA, was his best before this year and led him to opt out and sign with Arizona.
Eduardo Rodriguez in the Diamondbacks Rotation
Arizona signed Rodriguez to a four-year, $80 million contract before the 2024 season. The front office brought him in to anchor the rotation, not to pitch in relief. His first two years in the desert, however, did not go to plan.
A lat strain wiped out much of his 2024 season, and he posted an ERA above 5.00 in both 2024 and 2025. Even so, the Diamondbacks never moved him to the bullpen. He stayed healthy enough to make 29 starts in 2025, and the team gave him another full shot in the rotation for 2026.
That patience paid off. In May, he pitched into the ninth inning for the first time in his career during a win over the New York Mets. During one summer stretch, Arizona won 17 of his 20 starts.
His momentum started before Opening Day. In March, he helped Venezuela win the World Baseball Classic, then carried that confidence straight into the regular season. Even Diamondbacks general manager Mike Hazen admitted that almost nobody would have predicted, a year earlier, that Rodriguez would turn into an All-Star.
He became the club’s most dependable starter and a major reason the Diamondbacks finished 86-76. The team stayed in the Wild Card race until the final day of the regular season, and Rodriguez was at the center of that push.
What Makes Him a Starter: Pitch Mix and Approach
Rodriguez has the classic toolkit of a starting pitcher: a deep arsenal that lets him face a lineup three times. In 2026, his pitch usage looked like this:
- Four-seam fastball: about 40%
- Changeup: about 26%
- Cutter: about 13%
- Curveball: about 12%
- Sinker: about 8%
His fastball sits around 92 mph, so he does not overpower hitters. Instead, he wins by changing speeds, moving the ball around the zone, and limiting hard contact. The changeup is his key weapon against right-handed hitters.
His strikeout rate dipped to about 18% in 2026, but he kept his walk rate under 8% and pitched efficiently. A five-pitch mix gives hitters a different look each time through the order. That is exactly what managers want from a starter who is expected to work six innings or more.
Injuries and Durability: The Main Question Mark
If anything has made fans doubt whether Rodriguez is truly a starter, it is his health. He missed all of 2020 with myocarditis, lost about five weeks to a finger injury in Detroit, and had his Arizona debut delayed by a lat strain. He also spent time on the injured list in May 2025.
Those absences raised fair concerns. A starting pitcher is expected to make around 30 starts a year, and Rodriguez had reached that mark only a couple of times before 2026. That history is exactly why the question about his role keeps coming up.
The 2026 season changed that conversation. He stayed on the mound all year, made 32 starts, and threw nearly 190 innings, his highest total since 2019. Durability is no longer the knock it once was, though at 33 years old it will remain something to watch.
How to Value Eduardo Rodriguez in Fantasy Baseball
For fantasy managers, the most important point is simple: Rodriguez is a starting pitcher, so he gives you a shot at wins and quality starts every time he takes the mound. He collected 16 wins in 2026 and ranked among the league leaders in quality starts for much of the summer.
There are warning signs, though. His strikeout numbers were modest, and advanced metrics suggested his ERA ran well ahead of his underlying skills. His FIP finished at 3.89, about a full run higher than his ERA, and some expected-stat models pegged him even higher at midseason.
The smart approach is to treat him as a solid mid-rotation fantasy starter for 2027, not a true ace. Draft him for innings, wins, and respectable ratios, but do not pay full price expecting another sub-3.00 ERA.
Outlook for 2027 and the Final Verdict
Rodriguez is under contract with Arizona for 2027, and his deal includes a vesting option for 2028. That option kicks in if he reaches 150 innings in 2027, or 300 innings across 2026 and 2027 combined. With nearly 190 innings already banked this year, he needs only about 110 more next season to lock it in.
That gives both sides a clear reason to keep him in the rotation. The Diamondbacks need dependable innings after missing the playoffs on the final day, and Rodriguez has every incentive to take the ball every fifth day.
It is worth remembering how quickly the story flipped. Twelve months ago, many fans questioned whether he still belonged in the rotation at all. Today, he is the pitcher many Diamondbacks fans would most want on the mound in a must-win game.
So, is Eduardo Rodriguez a starter? Absolutely. He has spent nearly his whole career in a big-league rotation, and in 2026 he pitched like the top-of-the-rotation arm Arizona hoped it was signing.
Expect him to open 2027 as a key member of the Diamondbacks starting staff, with health and possible regression as the only real questions.
