№ 01Nolan McLean throws 63.3% fastballs, and Spencer Steer carries a .386 xwOBA against fastballs across 162 plate appearances this season.
№ 02Great American Ball Park plays to a 1.21 home run factor for right-handed hitters and a 1.06 run environment overall.
№ 03Wind is blowing out to center at 12 mph at first pitch, adding carry for batted balls in the air.
№ 04Over his most recent 5 starts, McLean has run a 5.27 FIP across 24.0 innings, and his composite form score sits at -54.
№ 05If the game stays close, closer Devin Williams has been hittable with a 5.01 ERA across 23.3 relief innings.
§ 01The analysis
The structural case here lives in the matchup. McLean is a fastball-first starter at 63.3%, and Steer's .386 xwOBA against fastballs across 162 plate appearances is the kind of pitch-specific profile that fits a total bases over. The setting helps. Great American Ball Park carries a 1.21 home run factor for right-handed hitters and a 1.06 run environment, with wind blowing out to center at 12 mph at first pitch. McLean's recent work backs the angle too — a 5.27 FIP over his last 24.0 innings and a -54 form score for the season. The counter is real and worth naming. Steer has just 2 hits in his last 29 at-bats, McLean has a 3.38 season FIP and has held righties to a .146 average across 130 matchups, and his ERA in the most recent two starts is 2.70 against 13.00 in the older two of his last five. If it stays close, Devin Williams and his 5.01 ERA across 23.3 innings offer another path to extra bases late.
§ 02The call
At +180, the price reflects Steer's cold stretch and McLean's recent step forward, but the matchup math points the other way. A fastball-heavy starter is facing a hitter with a .386 xwOBA against fastballs over 162 plate appearances, in a park that boosts right-handed power with the wind pushing out to center. The recent 5.27 FIP from McLean and a soft late-game option in Williams give Steer multiple paths to clear 1.5 total bases. Take the over on Spencer Steer.
Final resultLOSSSpencer Steer OVER 1.5 Total Bases · +180 Graded Jun 17, 2026