The Quick Answer
Bet365 had the best price on 78% of the bets we checked — 61 out of 78 contested MLB bets, measured live across 14 sportsbooks and exchanges in Pennsylvania.
That is not what the internet says. Ask this question on Reddit and you get FanDuel and BetMGM. Ask a review site and you get FanDuel, described as "known for competitive odds." Nobody in either place is comparing prices — they are comparing reputations.
The Table
We pulled every MLB bet the feed carried at a single moment, kept only the ones where at least two books quoted the same bet at the same line, and counted how often each was the best price available.
| Book | bets quoted | best price | rate |
|---|---|---|---|
| Bet365 | 78 | 61 | 78.2% |
| NoVig (Exchange) | 73 | 44 | 60.3% |
| Fanatics | 51 | 17 | 33.3% |
| ProphetX (Exchange) | 48 | 12 | 25.0% |
| TheScore | 48 | 10 | 20.8% |
| DraftKings | 29 | 5 | 17.2% |
| BetMGM | 18 | 7 | 38.9% |
| Kalshi (Exchange) | 15 | 3 | 20.0% |
| Caesars | 10 | 0 | 0.0% |
| FanDuel | 4 | 2 | 50.0% |
⚠️ Read the middle column before the right one. BetMGM's 38.9% comes from 18 bets and FanDuel's 50% from four — neither is comparable to Bet365's 78 or NoVig's 73. A book that quotes almost nothing can post a flattering rate, which is exactly why the denominator sits next to every number here.
The Gaps Are Not Small
This is not a matter of half a cent. Four real bets from the sample:
| Bet | best | next |
|---|---|---|
| Jackson Merrill, Total Hits | Bet365 +200 | Kalshi +173 |
| Ty France, Total Hits | Bet365 +190 | BetMGM +165 |
| Brandon Lowe, Total Hits | Bet365 +190 | ProphetX +163 |
| Pete Alonso, Total Hits | Bet365 +180 | Fanatics +160 |
On Jackson Merrill that is +200 against +173 for the identical bet. A hundred dollars returns $200 at one book and $173 at another. Nothing about the wager changes; only where you put it.
A Live Claim, Checked
On the day we ran this, ProphetX posted:
"there's a 95% chance we have the best odds in the market on that golfer to win. We are America's #1 golf trading platform, and it's not close."
⛔ We cannot check the golf claim — golf is not carried in the odds feed we use, and we are not going to assess a claim we have no data for.
⇒ What we can say is that on MLB, on the same day, ProphetX had the best price 25.0% of the time — 12 of the 48 contested bets it quoted, fifth of the seven books with a meaningful sample. That is a different sport and a different book of business, so it neither confirms nor refutes the golf number. It is simply the same venue measured where measurement is possible.
The Part That Should Surprise You
A sportsbook beat both exchanges. Exchanges are supposed to win this contest — they charge commission instead of building margin into the price, so their prices should be structurally better. On this sample:
- NoVig, an exchange, is genuinely strong at 60.3% and quoted the most bets.
- ProphetX, also an exchange, was best a quarter of the time.
- Kalshi was best on 3 of the 15 bets it quoted.
And Bet365, a conventional sportsbook, beat all of them. Being an exchange is not the same as being the best price, and it is worth checking rather than assuming.
How To Use This
- Check the specific bet, not the brand. No book wins everything — Bet365 lost 17 of the 78 bets it quoted here.
- Player props are where the gaps live. Every large gap in our sample was a prop, not a moneyline. Main lines cluster; props scatter.
- A book that does not quote your bet cannot be your best price. Half the books in the table quoted fewer than 20 of the 159 contested bets.
- Your state matters. This was measured in Pennsylvania. Which books appear at all changes by state, so a national "best odds" list is not necessarily your list.
What This Does Not Tell You
- A Single Moment In Time. Odds move constantly, and re-running this an hour later gives a different table. Treat the ordering as indicative, not fixed.
- MLB Only, And Only What This Feed Carries. Not golf, not the NFL, not everything a book offers.
- Half Our Comparisons Were Head-To-Head. 106 of the contested bets had exactly two books quoting, so many "wins" are one pairing rather than a broad field.
- Best Price Is Not Best Book. Limits, whether a winning account stays open, settlement speed and whether you get filled at the shown price are all unmeasured here, and all matter.
- Ties Count For Everyone. When several books share the top price they all get credit, because picking one arbitrarily would invent a winner.
FAQ
Which sportsbook has the best odds? In this sample, Bet365 — best price on 78.2% of 78 contested MLB bets in Pennsylvania. That is one sport at one moment, not a permanent ranking.
Do exchanges have better odds than sportsbooks? Not automatically. NoVig performed well at 60.3%, but a conventional sportsbook beat every exchange in this sample.
Why do FanDuel and DraftKings score low? Partly price and partly participation — DraftKings quoted 29 of the contested bets and FanDuel only four. A book cannot be the best price on a bet it does not offer.
How did you measure it? Every MLB bet the OddsShopper odds feed carried at one timestamp, state Pennsylvania. Only bets quoted by two or more books count, so being the sole quote is not a win. Odds converted to decimal payout so positive and negative American prices compare correctly.
OddsShopper covers prediction markets and sportsbooks as an independent analyst. Kalshi, Polymarket, NoVig and ProphetX contracts are event derivatives and can lose their full value. 18+, availability varies by state. The risk of loss is real. Stokastic trades prediction markets and holds positions in them. Nothing here is a pick, a play, or betting advice.
