Market unavailableW
May 19, 2026 ET · Odds at publication 1.4200
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Johnston leads the COL roster with a .321 BA and .943 vRHP OPS. He faces Rocker (RHP), who has a 4.34 ERA in 2026 with command issues (17 BB in 37.1 IP). Johnston's L28d OPS is 0.815 and L7d OPS 0.839 — consistent and hot. At Coors Field with a pitcher allowing elevated contact, the over 0.5 hits is strongly supported despite the -238 price reflecting the market's recognition of Johnston's quality.
Market unavailableL
May 14, 2026 ET · Odds at publication 2.3400
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Johnston hits .325 overall but carries a vL OPS of only 0.382 — an extreme platoon disadvantage. Mason Montgomery is a confirmed LHP. No career matchup data exists. His .382 vL OPS is one of the worst splits on the Colorado roster, making him a strong under candidate vs a lefty starter. Under at +134 offers strong value given the split severity.
Market unavailableV
Apr 25, 2026 ET · Odds at publication 1.7100
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Johnston is hitting .317/.371/.463 on the season with a .919 OPS vs RHP (Senga is RHP) and L7d OPS of .967. He faces a Senga who has a 8.83 ERA in 2026 and has allowed hard contact all season. Career vs Senga is only 2 PA (small sample, .000 AVG) so we rely primarily on Johnston's strong season-long RHP splits and red-hot recent form. +100 odds on over 0.5 total bases offers flat-money value on a batter performing at an elite level against right-handed pitching.