Wednesday’s MLB Strikeout Props - Sept. 9

Will Yoshinobu Yamamoto strike out more than 7.5 batters? Can Rhett Lowder record more than 3.5 strikeouts? See their odds and more strikeout prop odds for all pitchers in MLB play on Sept. 9, in the article below.

Today's MLB Strikeout Props

St. Louis Cardinals at San Francisco Giants

• Landen Roupp (Giants): Over/Under 5.5 Ks (Over +140, Under -180) | 2026 Stats: 5.1 strikeouts per game in 27 appearances
• Quinn Mathews (Cardinals): Over/Under 5.5 Ks (Over +108, Under -138) | 2026 Stats: 4.8 strikeouts per game in 5 appearances

Cincinnati Reds at Los Angeles Dodgers

• Yoshinobu Yamamoto (Dodgers): Over/Under 7.5 Ks (Over +100, Under -128) | 2026 Stats: 6.4 strikeouts per game in 25 appearances
• Rhett Lowder (Reds): Over/Under 3.5 Ks (Over -115, Under -111) | 2026 Stats: 3.6 strikeouts per game in 25 appearances

Texas Rangers at Seattle Mariners

• Bryce Miller (Mariners): Over/Under 4.5 Ks (Over -146, Under +114) | 2026 Stats: 5.3 strikeouts per game in 18 appearances
• Cal Quantrill (Rangers): Over/Under 4.5 Ks (Over -104, Under -122) | 2026 Stats: 2.5 strikeouts per game in 29 appearances

Washington Nationals at San Diego Padres

• Casey Mize (Padres): Over/Under 4.5 Ks (Over -111, Under -115) | 2026 Stats: 4.5 strikeouts per game in 22 appearances

Toronto Blue Jays at Athletics

• José Soriano (Blue Jays): Over/Under 5.5 Ks (Over +114, Under -146) | 2026 Stats: 5.4 strikeouts per game in 28 appearances
• Jack Perkins (Athletics): Over/Under 4.5 Ks (Over +124, Under -158) | 2026 Stats: 3.5 strikeouts per game in 33 appearances