№ 01Gasper carries a .391 xwOBA against right-handed sliders this season across 10 plate appearances, giving him a real path to damage on a specific pitch.
№ 02Closer Andrés Muñoz has run a 5.47 ERA across 26.3 relief innings, so a late at-bat against him could produce an extra-base opportunity.
№ 03Working against the over, Gasper has just 6 hits in 35 at-bats over his last 10 games and carries a .258 average with a 0.64 OPS on the season.
№ 04Logan Gilbert holds a 3.43 ERA over 86.7 innings and has run a 2.43 FIP across his most recent 5 starts spanning 30.0 innings.
№ 05T-Mobile Park sits at a 0.83 run environment and 0.94 home run factor, with wind blowing in toward home at 8 mph at first pitch.
§ 01The analysis
This is a price play built on a narrow edge against a tough backdrop. Gasper's .391 xwOBA against right-handed sliders over 10 plate appearances is the kind of pitch-specific signal that can turn into a double on one swing, and at +190 the over only needs to hit occasionally to pay. He is also hitting .284 against right-handed pitching this season, with a 0.71 OPS across 90 plate appearances. The counters are real and worth naming. Logan Gilbert carries a 3.43 ERA across 86.7 innings, a 3.62 FIP, and a 26.4% strikeout rate, and his last 5 starts have produced a 2.43 FIP over 30.0 innings with a form score of 38 indicating his swinging-strike and K rates are ahead of baseline. Gasper himself has only 6 hits in 35 at-bats over his last 10 games. T-Mobile Park runs at 0.83 for runs and 0.94 for home runs, and the wind is blowing in at 8 mph. If Gilbert exits, Muñoz and his 5.47 ERA across 26.3 innings is the backup plan.
§ 02The call
Take Gasper over 1.5 total bases at +190. The number is priced for a reason — Gilbert is the better side of this matchup, the park suppresses runs, and the wind is blowing in. But the slider profile gives Gasper a credible avenue for an extra-base hit, and Muñoz's 5.47 ERA out of the bullpen keeps the late innings live. At nearly 2-to-1, you do not need this to land often. One double, or a pair of singles in the right spot, cashes the ticket.
Final resultLOSSMickey Gasper OVER 1.5 Total Bases · +190 Graded Jun 21, 2026