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BOTTOM LINE
Edge: Leahy on the road. Career 2.68 ERA away (43.2 IP) vs 4.47 at home (44.1 IP), with more Ks and fewer walks on the road. Houston's pool is 10 RHB / 3 LHB, and Leahy handles RHB at .238/.270/.319. The 44.2% career GB rate (59.4% in 2026) meets Correa, Diaz, Smith, and Allen -- all 46%+ GB hitters.
Threat: Alvarez is 2-for-2 with a HR career vs Leahy and owns a 14.1% BB rate. He pulls from Leahy's weaker side (.252/.337 vs LHB). Paredes is the patient fly-ball threat: .264/.357/.475 vs RHP with 17 HR and 39.7% FB in 2025. Watch: Leahy's 2026 walk rate -- 12.5% across 14.0 IP, well above his 7.7% career mark. If walks continue, bullpen handoff is the hinge: Romero strands 88.5% of inherited runners; Svanson strands 50.0%. Herrera catching Leahy (4 G, 6.00 ERA, .308 AVG) is the smallest, worst battery sample. | ||||||
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KEY MATCHUPS
1. Alvarez vs Leahy (LHB platoon). 2-for-2 BvP with HR. 14.1% BB rate, .348 OBP vs RHP. Leahy's weaker side: .252/.337 vs LHB. The at-bat to circle. 2. Paredes -- patient power. .264/.357/.475 vs RHP in 2025, 17 HR in 367 PA, 11.4% BB, 39.7% FB rate. Leahy's sinker plays into ground balls for most of Houston; Paredes is the one who elevates. 3. Christian Walker. .235/.296/.427 vs RHP in 2025 with 23 HR in 507 PA. 27.7% K rate feeds Leahy's K potential, but one hanger leaves the yard. 0-for-1 with HBP career vs Leahy. | ||||||
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WATCHLIST
-- Leahy TTO1 window (355 PA career): .247 AVG / .341 SLG -- first pass through the order is his strength, then risk climbs. -- Cam Smith on the bases: 8 SB, 1 CS, 88.9% in 2025. Herrera-Leahy battery has only 4 G together -- pop times may lag. -- Bullpen fork: Romero 88.5% strand vs Svanson 50.0%. Which arm enters with runners on decides the middle innings. -- Lambert's Astros debut (not MLB debut): 74 career MLB G / 35 GS / 8-19 / 6.28 ERA with Colorado 2019-2023 (web-sourced). Starts on a week's rest after 6 IP / 1 ER vs Tacoma April 10. |
Leahy on the Road: The 1.79-Run ERA Gap That Swings Cardinals-Astros
Apr 17, 2026
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3 min read