Dodgers acquire flamethrowing RHP Halvorsen from Rockies

PHILADELPHIA -- The Dodgers added an intriguing arm to their relief depth by acquiring right-hander Seth Halvorsen from the Rockies on Monday afternoon in exchange for a pair of Minor Leaguers: outfielder Landyn Vidourek (L.A.'s No. 25 prospect prior to the trade) and righty Nick Frasso.

Halvorsen is one of MLB’s hardest throwers, firing 233 pitches at 100 mph or faster since the beginning of 2025 -- the seventh most in the Majors during that time -- and averaging 99.6 mph with his four-seamer in his career (98.8 mph in 2026).

However, control has been an issue for the right-hander, who has issued 38 walks in 71 innings (4.8 BB/9) over parts of three seasons. He's spent this season shuttling between Triple-A and the big leagues and posted a 4.74 ERA with 17 strikeouts and 15 walks over 19 innings for the Rockies before going on the IL.

TRADE DETAILS
Dodgers get: RHP Seth Halvorsen
Rockies get: OF Landyn Vidourek (LAD's No. 25 prospect), RHP Nick Frasso

Halvorsen has a 3.40 ERA in 39 2/3 innings at home and a 5.46 ERA in 31 1/3 innings on the road in his career, but interestingly, he has surrendered more homers away from Coors Field (nine on the road, three at home). He's also struck out more batters at the home of the Rockies (45 at home, 20 on the road).

"Hopefully, we can unlock some levers," manager Dave Roberts said before the Dodgers' series opener at Citizens Bank Park. "But the arm talent's there. Our guys are really excited about him."

Vidourek, 22, recorded a .170 average with six homers and a .643 OPS over 256 plate appearances for Single-A Ontario this season, striking out nearly 39% of the time. The Dodgers took him with a third-round Draft pick in 2025.

Frasso has posted a 3.90 ERA over five Minor League seasons, including a 4.98 ERA and a 1.56 WHIP across 121 innings in Triple-A. A fourth-round pick by the Blue Jays in 2020, the 27-year-old joined the Dodgers alongside Moises Brito in a ’22 trade for Mitch White and Alex De Jesus.