MLB Player Props for Friday, 6/13: Best Bets & Predictions Today
What kind of performances can we expect on Friday from Freddy Peralta, Yoshinobu Yamamoto, and Gavin Williams? Follow along as our MLB betting analyst, Nick Galaida, breaks down three of his favorite MLB prop bets for Friday, June 13th. Get all of Nick’s picks, including more MLB plays, by subscribing to the RotoGrinders Props & Pick’em package.
Happy Friday! Major League Baseball started their weekend earlier this afternoon with some day baseball at Wrigley Field, but there are still 14 games left to get underway as of this writing for what should be an entertaining slate of action.
As always, be sure to monitor our MLB starting lineups page throughout the day, as unexpected changes in the batting order can result in value opportunities in the betting and DFS markets.
Another reminder – it’s not a bad beat or unlucky if you bet a player to hit a home run and his fly ball dies on the warning track because it’s 40 degrees with the wind blowing in! Before locking in any bets, use our MLB weather page, curated by Chief Meteorologist, Kevin Roth. There are countless edges to be found if we make the right reads on possible rain delays and great hitting weather, just to name a few. Taking a look at the weather report can save us from a bad bet that otherwise looks good on the surface.
Below, you can find my 3 picks for Friday, June 13th!
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Best MLB Player Props for Friday, June 13th
Here are my top player prop bets for today, with the first pitch scheduled for 6:45 PM ET on Friday, June 13th:
- Freddy Peralta Over/Under 17.5 Outs Recorded
- Yoshinobu Yamamoto Over/Under 18.5 Outs Recorded
- Gavin Williams Over/Under 17.5 Outs Recorded
Freddy Peralta UNDER 17.5 Outs Recorded (-125, DraftKings)
During the last 30 days of action, Peralta has averaged an inefficient 4.3 pitches per batter faced. Tonight, he draws a favorable matchup against a Cardinals offense that ranks 27th in wRC+ against right-handed pitching across the last 14 days, but a rested arm barn behind him could lead to a quick exit at the first sign of trouble in the 6th inning. Peralta has faced 23 batters or fewer in 5 of his last 7 starts — that is a thin margin for error for him with a number of rested relievers available behind him.

Yoshinobu Yamamoto UNDER 18.5 Outs Recorded (-195, DraftKings)
Yamamoto has been excellent in a number of ways in 2025, but the one notable critique on him has been his inefficiency. Entering play on Friday, he’s averaging 4.1 pitches per batter faced across the last month of action. This evening, he will face a patient San Francisco lineup, which ranks 28th in swing% during the last two weeks. Even if Yamamoto performs well today, he’s likely to be done after 6 innings.

Gavin Williams UNDER 17.5 Outs Recorded (-135, DraftKings)
Williams has recorded 18+ outs in each of his last 2 starts, but prior to that point, he had only completed 6 innings once in his prior 6 turns through the rotation. Tonight, he draws a matchup against a relatively patient Seattle lineup that has been seeing right-handed pitching well of late. Williams, despite recently getting deep into some games, is averaging an inefficient 4.3 pitches per batter faced since the middle of May. This could be a shorter outing for him on Friday.

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