Best MLB Runs Matchups — Wednesday, July 29, 2026
Top runs spot: Randy Arozarena
Randy Arozarena (SEA) tops the board at 100, facing LHP Eric Lauer. The righty is scoring at .147 R/PA against lefties this year — and .214 over the last two weeks, a solid bat that turns into a run in about 13% of his trips. And Eric Lauer has been getting lit up by lefties lately — .231 runs per batter faced. The bullpen behind him is roughly average to that side. He's hitting in a spot worth about 4.5 trips, so the volume's there. He's just .167 in 6 career PA against Eric Lauer, but that's a tiny sample and the matchup says regression. It all sets up in a neutral park.
The rest of the top of the board
- Jeremy Peña (HOU) (100) vs RHP Grayson Rodriguez: an excellent bat at .166 into an arm getting lit up by the same side (.400), hot bat.
- Shohei Ohtani (LAD) (95) vs RHP Emerson Hancock: a strong bat at .137 into an arm stingy with runs against the same side (.091).
- Yordan Alvarez (HOU) (95) vs RHP Grayson Rodriguez: a strong bat at .143 into an arm getting lit up by the same side (.200).
- Julio Rodríguez (SEA) (92) vs LHP Eric Lauer: a solid bat at .126 into an arm getting lit up by the same side (.231).
- Fernando Tatis Jr. (SD) (80) vs RHP Gabriel Hughes: a solid bat at .125 into an arm with little track record against the same side.
- Corbin Carroll (AZ) (80) vs RHP Jared Jones: a strong bat at .141 into an arm stingy with runs against the same side (.080).
- Seiya Suzuki (CHC) (78) vs RHP Dustin May: a solid bat at .130 into an arm getting lit up by the same side (.179).
Platoon edges to target
- Randy Arozarena (SEA) — righty bat vs LHP, .147 against lefties this year.
- Shohei Ohtani (LAD) — lefty bat vs RHP, .151 against righties this year.
- Yordan Alvarez (HOU) — lefty bat vs RHP, .172 against righties this year.
- Julio Rodríguez (SEA) — righty bat vs LHP, .140 against lefties this year.
- Corbin Carroll (AZ) — lefty bat vs RHP, .144 against righties this year.
How it played out
3 of the top 10 runs matchups landed at least one run. Top play Randy Arozarena finished with 0 runs. We post the result next to every projection so you can grade the board yourself — and so the model gets re-tuned against what actually happened.
How to read these runs matchups
Each score (0–100) starts with the hitter's runs scored per plate appearance against the hand he's facing — weighted toward the last two weeks, then the season, then a two-year baseline. Then it layers in the bullpen, his spot in the order, and park and weather. Higher means more of it points his way. It's context, not a lock — a great spot still goes 0-for-4 sometimes, and a tough one runs into one. The edge is in stacking the odds, and since we grade every board, you can see how often the top of the list delivers.
What the runs board is
The Runs board projects the chance a hitter scores a run. One statistical model scores every matchup on the slate the same way — a star and a backup judged on the matchup in front of them, not their name — and every number is graded against the real box score once the games go final.
How the model gets its number
It isn't a gut call or a name game. The projection is built from a few things:
- His on-base ability at the top of the order.
- The bats due up behind him.
- The opposing run-prevention.
Those pieces combine into one number, and the model re-tunes itself weekly against how its past calls actually landed.
Is there a betting edge here?
Like RBIs, runs is a lumpy market that grades efficient once you model the clustering honestly. Transparency board — the WizLine set beside the line, graded.
How to use it
Useful context for top-of-the-order run creation, not a lean.
Everything here is a research signal from the model, graded in public — not betting advice, and no outcome is guaranteed.
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