Ryan Weiss

29-Year-Old PitcherRP
2026 Fantasy Outlook
Weiss is part of a large group of pitchers returning from overseas this winter, though unlike the rest of them, he's yet to make his big-league debut. He signed with the CPBL's Fubon Guardians two years ago as a 27-year-old after struggling to a 6.72 ERA and 1.80 WHIP across parts of three seasons at the Triple-A level, then moved on to the KBO's Hanwha Eagles five starts later. Weiss took big steps forward in his two seasons in Korea, particularly this past year, where he helped his team reach the Korean Series by posting a 2.87 ERA and 1.02 WHIP across 30 starts, pairing a 28.6 K% with a 7.7 BB%. It was enough to convince the Astros to sign him to a one-year, $2.6 million deal, though that's not a contract which implies the team is committed to giving him a rotation role. He appears lined up to compete for a back-end starter job this spring, but he may fit best in the bullpen, where his fastball and slider could cause problems for righties if his stuff ticks up in shorter stints. Read Past Outlooks
RANKS
From Preseason
#422
ADP
Signed a one-year, $2.6 million contract with the Astros in December of 2025. The deal includes a club option for 2027.
Competing for final rotation spot
PHouston Astros
February 27, 2026
Weiss delivered 2.1 scoreless innings in Thursday's Grapefruit League matchup with the Mets, allowing a hit and a pair of walks.
Analysis
It was a solid spring debut overall for Weiss, as he was able to work out of trouble to keep the Mets off the board. The 29-year-old right-hander is competing with Spencer Arrighetti, Lance McCullers and AJ Blubaugh for one of the final two spots in the Astros' six-man rotation. Weiss, who featured a mid-90's fastball paired with three different offspeed pitches, signed a one-year deal with Houston after posting an impressive 2.87 ERA with 207 strikeouts across 178.2 innings in the KBO last year. Weiss figures to start the year as a swingman out of the bullpen, should he fail to crack the Opening Day rotation.
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Recent RotoWire Articles Featuring Ryan Weiss See More
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More Fantasy News
Inks deal with Astros
PHouston Astros
December 2, 2025
The Astros signed Weiss to a one-year contract Tuesday, Brian McTaggart of MLB.com reports.
Analysis
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Outrighted to Triple-A
PKansas City Royals
October 26, 2022
Weiss cleared waivers and was outrighted to Triple-A Omaha on Wednesday.
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Claimed by Kansas City
PKansas City Royals
July 1, 2022
Weiss was claimed off waivers by the Royals on Friday and optioned to Triple-A Omaha.
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Loses spot on 40-man roster
PArizona Diamondbacks
June 26, 2022
Weiss was designated for assignment by the Diamondbacks on Sunday.
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Gets optioned Thursday
PArizona Diamondbacks
March 24, 2022
The Diamondbacks optioned Weiss to Triple-A Reno on Thursday.
Analysis
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