MLB PLAYER PROPS · Thursday, August 27

Best MLB Total Bases Props, Thursday August 27

3 selections from 19 MLB total bases props that cleared our form and pricing filters on tonight's slate. Each one shows the price, the book quoting it, the matchup behind it, and the reason it might be wrong.

Our graded card is 50-53-7 at -4.8% ROI since Aug 9. Every pick, graded, losers included.

Pick	Price	Book	Why
Willi Castro Over 1.5 Total Bases	+140	Hard Rock	over in 40% of his last ten; Jake Irvin has allowed hard contact on 45.1% of balls in play, above the 42% league mark
Jacob Young Under 0.5 Total Bases	+140	theScore Bet	under in 50% of his last ten; Young hits the ball hard at only the 18th percentile of qualified regulars
William Contreras Over 1.5 Total Bases	+120	bet365	over in 60% of his last ten; Contreras hits the ball hard at the 72nd percentile of qualified regulars

The reads behind them

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.

Angle 1

Willi Castro Over 1.5 Total Bases

Colorado Rockies @ Washington Nationals · first pitch 1:06 PM ET

+140at Hard Rock

Willi Castro has gone over 1.5 total bases in 42% of 114 games this season and 40% across the last ten. He faces Jake Irvin.

Jake Irvin has allowed hard contact on 45.1% of balls in play, above the 42% league mark.
He bats left-handed into a right-hander, a split he ranks in the 66th percentile on.
Jake Irvin carries a 5.82 ERA and a .245 average against over 77.1 innings.

The case against

The price is worse than the market's own number. The books quoting this line imply a fair price around +153 and this is +140, giving up roughly 5.3%. The form read has to be right by more than that gap.

This game has rolled off the board. Open tonight's slate

Angle 2

Jacob Young Under 0.5 Total Bases

Colorado Rockies @ Washington Nationals · first pitch 1:06 PM ET

+140at theScore Bet

Jacob Young has gone under 0.5 total bases in 39% of 109 games this season and 50% across the last ten. He faces Gabriel Hughes.

Young hits the ball hard at only the 18th percentile of qualified regulars.
Gabriel Hughes has allowed hard contact on 30.3% of balls in play, below the 42% league mark.

The case against

The price is worse than the market's own number. The books quoting this line imply a fair price around +154 and this is +140, giving up roughly 5.4%. The form read has to be right by more than that gap.

Gabriel Hughes carries a 6.54 ERA and a .261 average against over 42.2 innings.

This game has rolled off the board. Open tonight's slate

Angle 3

William Contreras Over 1.5 Total Bases

Milwaukee Brewers @ New York Mets · first pitch 7:11 PM ET

+120at bet365

William Contreras has gone over 1.5 total bases in 42% of 123 games this season and 60% across the last ten. He faces Sean Manaea.

Contreras hits the ball hard at the 72nd percentile of qualified regulars.
Sean Manaea has allowed hard contact on 42.6% of balls in play, above the 42% league mark.

The case against

The price is worse than the market's own number. The books quoting this line imply a fair price around +128 and this is +120, giving up roughly 3.5%. The form read has to be right by more than that gap.

This game has rolled off the board. Open tonight's slate

What this is, and what it is not

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 tracked as its own cohort.

Where the record lives: the Lab's card is graded in public, every pick and every loss, on the results page. Each prop above is recorded with the exact price and book shown, at a flat stake, from the moment it was published.

Also today: Best MLB hits props for Thursday, and today's full card.

Every prop on tonight’s board The record

Built from the Lab's board for Thursday, August 27. Prices were read across every book quoting each line at Aug 27, 10:55 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.