Tampa Bay Rays and Boston Red Sox are American League East rivals who meet many times across a season, so this page is about how to read any Rays vs Red Sox card: each play's best takeable price, the de-vigged fair number behind it, and the edge between the two. The board below is our read from their July 17, 2026 meeting: a real, worked illustration of where the edges tend to sit in this matchup. When these two next play, pull the live board for that game before you bet; the method is the part that carries over.
In Summary
- The Read On This Matchup: these two AL East rivals meet a dozen-plus times across a full season, so both clubs and both books have the moneyline priced sharply, with no soft side to steal. The value drains down to the player props, and specifically to the Under prices on hits.
- The Number I Keep Coming Back To: Rays third baseman Ben Williamson Under 0.5 total hits at +185 on Bet365 against a fair price of +160 — a +9.6% edge, the widest gap anywhere on that card.
- Seven Prop Edges are in the table below. Six of the seven are hit Unders, and six of the seven best prices sit at Bet365, which makes Bet365 the first book to check on this class of prop rather than a coincidence to shrug off.
- Why It Matters: the fair value on that Williamson Under is +160, but Bet365 was posting +185 for the same bet at the same moment. Shopping up to the +185 instead of settling for a fair-priced number is the entire edge; take the worse number and you have shaved your own edge to nothing.
- How To Use It: treat the table as the read for the pattern, then confirm the live price for the next meeting on the OddsShopper +EV top bets screen before you bet, because these numbers move all day on game day.
Why The Edge Is In The Props, Not The Moneyline
The Rays and Red Sox play each other a dozen-plus times a season, and every sportsbook we track has modeled this matchup over and over. A game that gets seen that often gets priced sharply: the moneyline converges fast, sharp money moves any book that steps out of line, and the number you shop is the same number everywhere within a few cents. Contrast that with the interleague one-off, where books disagree because nobody is watching. Here, everybody is watching the sides.
So on a familiar division matchup the first question is never "who wins" — it is "which market did the books not bother to sharpen." The answer is the player-prop shelf. Strikeout totals and individual hit props are posted in volume, updated later than the moneyline, and priced with far less liquidity behind them, which is exactly why the widest gaps on the July 17 card all sat there and not on the side. Hold that thought: every row in the table below is a hits or strikeouts Under, and the reason is structural, not a fluke of one night. The names change meeting to meeting; the shape of where the value lives does not.
Player Prop Edges
| Market | Play | Best price | Fair odds | Edge |
|---|---|---|---|---|
| Total Hits | Ben Williamson Under 0.5 | +185 (Bet365) | +160 | +9.6% |
| Total Hits | Anthony Seigler Under 0.5 | +165 (Bet365) | +150 | +6.0% |
| Total Hits | Ryan Vilade Under 0.5 | +170 (Bet365) | +160 | +3.9% |
| Total Strikeouts | Griffin Jax Under 4.5 | +125 (Bet365) | +118 | +3.2% |
| Total Hits | Jonathan Deluca Under 0.5 | +160 (Bet365) | +154 | +2.4% |
| Total Hits | Masataka Yoshida Under 0.5 | +195 (Bet365) | +189 | +2.1% |
| Total Hits | Chandler Simpson Under 0.5 | +200 (Fanatics) | +194 | +2.0% |
The row that earns its spot at the top is Rays third baseman Ben Williamson's Under 0.5 hits. Its fair number is +160, but the best takeable price is +185, a full 25 cents of daylight on the same bet, and that gap is the whole play, which the worked example below takes apart step by step. Notice too that the biggest edges are the deepest Unders (the 0.5-hit lines), and that six of the seven best prices are at one book. When one sportsbook is consistently the high line on a whole class of props, that is your first shopping stop, not a tie to break at random.
Worked Example: Turning +160 Vs +185 Into +9.6%
The Williamson row is the cleanest teaching case on the card, so let me walk the arithmetic that produces its edge. Every figure here comes from the two prices already in the table (the fair number and the best available number), not from any new estimate.
| Step | Number | Where it comes from |
|---|---|---|
| Fair Price | +160 | De-vigged board price for the Under |
| Fair Win Probability | 38.5% | 100 ÷ (160 + 100) |
| Best Takeable Price | +185 | Bet365, the high line on the board |
| Payout On A Win | 1.85 units | +185 pays 1.85 per 1 risked |
| Expected Value | +9.6% | (0.385 × 1.85) − (0.615 × 1) |
The bottom row is the entire argument for this page. The de-vig says the Under hits 38.5% of the time, which is the honest estimate with the book's cut stripped out. If you get paid +185 on an outcome that is 38.5% to happen, you collect 1.85 units on the 38.5% and lose one unit on the other 61.5%, which nets to +9.6% expected value on every dollar. Take that same true bet at its fair +160 and the edge is gone; take it at +150 and you are now paying the house. The outcome is identical either way: Williamson gets a hit or he does not. The only thing you controlled was the number, and the number is the bet. If any of that math is new, our guide to removing the vig and how to find +EV bets walk the conversion end to end.
One honest caveat that most pages skip: a twenty-five-cent gap like the Williamson line is a good day, not a normal one. Run the same steps on Red Sox utilityman Anthony Seigler's Under (+165 best, +150 fair) and the edge is a more typical +6.0%; on the deeper rows it thins toward +2%. Those small numbers are exactly the ones that survive a full MLB season of variance, and compounding them requires shopping every book, every time.
Where These Prop Numbers Come From
Every play above comes off the OddsShopper +EV board. The fair odds column is the de-vigged true price, the market's honest read with the book's margin removed, and the edge is how far the best takeable price beats that fair number. You will see the same idea branded "true line" or "consensus price" on other sites; the label changes, the math does not, and our MLB betting terms glossary covers the rest of the vocabulary on a baseball card. New to reading a price at all? Start with how to read betting odds.
On any Rays vs Red Sox game, prop prices move all day as lineups, Fenway weather, and confirmed starters firm up, so treat a board like the one above as the read and confirm the live number for the game in front of you on the OddsShopper odds screen before you bet. The prop board reprices later and harder than the sides do, which is both why the edges live there and why the good price rarely waits for you.
More on this: Diamondbacks vs Red Sox Odds: Best Prices and +EV Edges · Red Sox vs Pirates Odds: Best Prices and +EV Edges · Red Sox vs Blue Jays Odds: Best Prices and +EV Edges · Athletics vs Red Sox Odds: Best Prices and +EV Edges · White Sox vs Red Sox Odds: Best Prices and +EV Edges
How Our Odds Screen Does The Shopping
De-vigging one prop by hand is a two-minute job. Doing it across every hits and strikeouts market on a full MLB card, at every book, refreshed every few minutes, is not, and that is where the product earns its keep. The tool scans every sportsbook we track, de-vigs each market the way the Williamson example does it, and ranks what is left by edge, so the +185 surfaces to the top instead of hiding behind the +160 next door. A whole column of Bet365 high lines becomes visible as a pattern that way, instead of a coincidence you notice one bet too late.
Shop this matchup the way we do. Every price on this page came from the OddsShopper +EV screen. Take 20% off your first payment on OddsShopper Pro with code MLBODDS20 and watch it flag edges across every book in real time: claim 20% off here.
The odds comparison view stays free, and the +EV top bets screen carries every MLB odds today across the books we track. If a Rays or Red Sox play clears our threshold before first pitch, it also shows up on the free expert picks today feed with the reasoning attached.
