Hagen Smith Excels Out of White Sox Bullpen Following Major League Debut

Chicago White Sox rookie left-hander Hagen Smith has surrendered just one hit and struck out 13 batters through his first eight major league innings after being called up on August 8, 2026. The 2024 fifth overall draft pick has compiled a 1.13 ERA out of the Chicago bullpen while limiting opposing hitters to a .040 batting average.

Smith was drafted out of the University of Arkansas, where he earned SEC Pitcher of the Year honors in his final collegiate season. After spending under two years in the minor leagues, the former Bullard Panther made his big league debut on August 9, ten days before his 23rd birthday. Over six career appearances, the only hit allowed by Smith was a tenth-inning walk-off home run to Pete Crow-Armstrong of the Chicago Cubs.

The rookie southpaw earned his second win on August 16 after tossing 1.1 scoreless innings with two strikeouts in a 7-5 victory over the Detroit Tigers. Across his first eight major league innings, Smith has recorded a 0.88 WHIP and issued six walks, though four came during his initial outing. His current bullpen role follows a shoulder impingement that sidelined him for a month earlier this season, shifting him to relief duty until next spring.

Smith relies on a unique grip for his signature slider, spinning the pitch off the skin of the baseball without placing his fingers directly on the seams.

"Kind of close, but not with no laces," said Smith, left-handed pitcher for the Chicago White Sox.

A key factor in Smith's recent performance was an adjustment to his delivery after his arm angle dropped lower during spring training.

"It was a pretty easy fix," said Smith. "I was just getting a little scoopy for a while. Then once we fixed that, I feel like everything got helped a little bit.

Slider got better, cutter got better, fastball got better. All the shapes went back to normal."

Chicago manager Will Venable praised the rookie's swing-and-miss capabilities when pitching inside the strike zone.

"When he's in the zone, he's — I don't want to say unhittable, but it's hard to square him up," said Venable, manager for the Chicago White Sox. "We're seeing a lot of swing-and-miss with all of his stuff in the zone. And when he's able to do that, he's really impactful."

The White Sox organization views Smith as a long-term member of their starting rotation, drawing comparisons to former Chicago starter Chris Sale's early career trajectory in relief.

"Coming into spring training physically where he wants to be at is definitely a focus for everybody and for him," said Bannister, senior adviser for pitching for the Chicago White Sox. "The battle is him just being physically ready to pitch on a five-day routine for six to eight months straight, along with being pitch-efficient enough to be able to get you five to seven innings before he hits his pitch count."

Chicago pitching evaluators identified specific hip movements and arm placement to help refine Smith's mechanical consistency moving forward.

"This version, no doubt, he's a weapon," said Bannister. "We've kind of always known that."