Top 5 Starting Rotations in Major League Baseball

After a long offseason, the 2026 MLB regular season has arrived. There is no shortage of stars in the major leagues, specifically in the starting pitching department.

While having an ace is a privilege, it’s also important to prioritize depth and to have a strong group overall. With that being said, here are the five best starting rotations in all of baseball, in no particular order.

Boston Red Sox

A major focus of Boston’s offseason was revamping the rotation. The Red Sox added Sonny Gray from the Cardinals and Ranger Suárez from the Phillies, as well as Johan Oviedo from the Pirates.

Those guys join ace Garrett Crochet, who’s a candidate for the AL Cy Young award. They also have other solid arms in Brayan Bello and the young Connelly Early.

Some pitchers on the injured list that could be depth options are Kutter Crawford and Patrick Sandoval. Boston is in a tough division, but the Red Sox stand a good chance with this elite rotation.

Kansas City Royals

The Royals don’t have the superstar headliners, but what they do have is great depth. Cole Ragans is the ace of the staff. He’s followed by righties Michael Wacha and Seth Lugo, then lefties Kris Bubic and Noah Cameron.

Wacha and Lugo have both been productive vets since joining Kansas City. Bubic was an All-Star last season, and Cameron was a solid rookie.

The AL Central is a very winnable division, with the Detroit Tigers and Cleveland Guardians the only real threats. Kansas City’s pitchers could set them apart from the pack.

Los Angeles Dodgers

You knew they’d end up here. Even with Blake Snell beginning the year injured, the Dodgers' rotation is still so stacked.

When he’s not hitting moonshots, Shohei Ohtani will dominate your favorite team for six or seven innings. Yoshinobu Yamamoto is the ace and the reigning World Series MVP.

Tyler Glasnow is pretty injury-prone, but still good when he’s healthy. Roki Sasaki had a rough first year, but showed his value in the Postseason.

Emmet Sheehan is an interesting name to keep your eyes on, too. That rotation to go with that lineup? Dodgers fans have it very nice.

Philadelphia Phillies

Even after losing Ranger Suárez to the Red Sox, the Phillies' starting rotation is as reliable as it gets.

It’s worth noting that Zack Wheeler will be returning from thoracic outlet syndrome, which hasn’t been kind to pitchers in the past, but there’s no denying how good Wheeler was before his injury.

Speaking of aces, Cristopher Sánchez broke out in a big way last year, en route to being the runner-up for the NL Cy Young and earning a new contract extension. With Wheeler’s return unknown, he’ll be the ace of the staff.

Speaking of extensions, Jesús Luzardo was also locked up long-term after a nice first year in Philadelphia. Aaron Nola is due for a bounce back, and Taijuan Walker is a fine vet, but fans will have their eyes on rookie Andrew Painter. Will Rob Thomson’s group win the NL East for the third year in a row?

Seattle Mariners

Are Mariners fans tired of this line? Probably, but I’ll say it anyway. Seattle was one game shy of a World Series appearance in 2025.

While the Mariners didn’t make any moves on the starting pitching front, they didn’t need to. Logan Gilbert, George Kirby and Bryan Woo are a very nice one-two-three.

Luis Castillo, the former ace of the team, is still a pretty reliable vet and very solid fourth starter. Bryce Miller will start the season on the IL. Until then, watch for Emerson Hancock, the former first-round pick. Seattle should have no problem winning the AL West again, especially with this core.

Adam Pietrzak is a fifth-year student majoring in broadcast journalism. To contact him, email app5940@psu.edu