Best MLB Walks Matchups — Tuesday, June 30, 2026
Top walks spot: Juan Soto
Juan Soto (NYM) tops the board at 100, facing RHP Kevin Gausman. The lefty is working counts at .167 BB/PA against righties this year — and .212 over the last two weeks, an excellent bat that turns into a walk in about 15% of his trips. And Kevin Gausman has been handing out free passes to righties lately — .146 walks per batter faced. The bullpen behind him hasn't been any better to that side, so there's no relief late. He's hitting in a spot worth about 4.5 trips, so the volume's there. He's a fine .276 in 29 career PA against Kevin Gausman. It all sets up in a neutral park.
The rest of the top of the board
- Iván Herrera (STL) (99) vs LHP Martín Pérez: an elite bat at .153 into an arm handing out free passes to the same side (.128).
- Geraldo Perdomo (AZ) (93) vs RHP Landen Roupp: an excellent bat at .142 into an arm fairly stingy with walks against the same side (.071), hot bat.
- Yordan Alvarez (HOU) (88) vs RHP Joe Ryan: an elite bat at .156 into an arm tough to walk against the same side (.037), due to bounce back.
- Kevin McGonigle (DET) (86) vs RHP Cam Schlittler: an excellent bat at .145 into an arm prone to walking the same side (.105).
- Kyle Schwarber (PHI) (85) vs RHP Bubba Chandler: an excellent bat at .125 into an arm prone to walking the same side (.098).
- JJ Bleday (CIN) (80) vs RHP Brandon Sproat: an excellent bat at .122 into an arm prone to walking the same side (.105).
- Bryce Harper (PHI) (79) vs RHP Bubba Chandler: an excellent bat at .121 into an arm prone to walking the same side (.098).
Platoon edges to target
- Juan Soto (NYM) — lefty bat vs RHP, .167 against righties this year.
- Iván Herrera (STL) — righty bat vs LHP, .211 against lefties this year.
- Geraldo Perdomo (AZ) — lefty bat vs RHP, .151 against righties this year.
- Yordan Alvarez (HOU) — lefty bat vs RHP, .186 against righties this year.
- Kevin McGonigle (DET) — lefty bat vs RHP, .161 against righties this year.
Where walks come easiest today
Coors Field is playing as a real hitter's park today (+6% walk park). Top bat there: TJ Rumfield (COL) at 67.
Lineup watch
270 of today's hitters are still on projected lineups, drawn from each team's last game. Batting order drives the score, so these flip the moment official lineups post — usually about two hours before first pitch. Anyone who doesn't make the official card gets flagged "Not starting" and drops to the bottom.
How to read these walks matchups
Each score (0–100) starts with the hitter's walks 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.