MLB PLAYER PROPS · Monday, October 19
2 selections from 6 MLB total bases props across 1 game that cleared our form and pricing filters on Monday's slate. Each one shows the price, the book quoting it, the matchup behind it, and the reason it might be wrong.
Our graded record is 82-61-5 at +37.1% ROI since Sep 25, as of Oct 19. Every public pick since Sep 25, 2026, losers included.
| Pick | Price | Book | Why |
|---|---|---|---|
| Brayan Rocchio Under 0.5 Total Bases | -110 | theScore Bet | under in 70% of his last ten; Rocchio hits the ball hard at only the 16th percentile of qualified regulars |
| Chandler Simpson Under 1.5 Total Bases | -190 | theScore Bet | under in 80% of his last ten; Simpson hits the ball hard at only the 0th percentile of qualified regulars |
Form here is 60% of a player's last ten games and 40% of the season, weighed against what the books are charging once the vig is stripped out, and against what the matchup says. A prop only appears when the matchup backs it as well as the form does.
Next best −110 at CaesarsSame 0.5 line
Brayan Rocchio has gone under 0.5 total bases in 40% of 163 games this season and 70% across the last ten. He faces Freddy Peralta.
Rocchio hits the ball hard at only the 16th percentile of qualified regulars.
Freddy Peralta has allowed hard contact on 36.9% of balls in play, below the 42% league mark.
Next best −190 at BetMGMSame 1.5 line
Chandler Simpson has gone under 1.5 total bases in 60% of 155 games this season and 80% across the last ten.
Simpson hits the ball hard at only the 0th percentile of qualified regulars.
These are our strongest market-specific props, chosen on the best combination of recent form, season baseline, the matchup itself, and the line actually available. The Lab's card is a separate five-pick slate selected across every market, and it is graded on the public record.
Where the record lives: the Lab's public record starts Sep 25, 2026, the card and the boosts together, with every pick and every loss on the results page. Each prop above is frozen with the exact price and book shown from the moment it was published. These angles are not on that graded record; the card and the boosts are.
Same slate: Guardians vs Rays player props.
The full card: MLB player props today, every pick with the price it was taken at and the argument against it.
Built from the Lab's board for Monday, October 19. Prices were read across every book quoting each line at Oct 19, 11:07 AM ET and are frozen at those numbers. Prices move; check before you bet. The sentences above are generated from the same numbers printed beside them. 19+. If betting stops being fun, ConnexOntario, 1-866-531-2600.