Sportsbook Odds Report: March 2026

This month has recorded scans on 7 of its 31 days. Every figure below covers only the days listed, and is not scaled up to a full month.

Which sportsbook had the best odds most often in March 2026?

Best-price share is the share of the sides a venue quoted where its price was at or tied for the highest payout of every venue quoting that same side. Each venue is measured against its own coverage, so a book that prices fewer games is not penalised for the games it skipped. Sample size is listed for every row because the denominators differ.

Coverage is the share of every price recorded this month that came from that venue. It is the check on the share beside it: a high best-price share on low coverage means the venue won most of the few sides it chose to quote, not that it beat the market. With 17 venues recording prices, an even split would put each near 5.9%.

1. Kalshi (prediction market): 65.8% of 21,840 sides quoted, over 7 days (4.2% coverage; grade A+; worst price on 5.5%; overstated, see the data quality note above)
2. BetMGM: 17.4% of 38,858 sides quoted, over 7 days (7.4% coverage; grade B; worst price on 16.2%)
3. Pinnacle: 16.0% of 31,458 sides quoted, over 7 days (6.0% coverage; grade B; worst price on 2.1%)
4. FanDuel: 8.6% of 38,096 sides quoted, over 7 days (7.3% coverage; grade D; worst price on 7.2%)
5. LowVig: 8.2% of 31,238 sides quoted, over 7 days (6.0% coverage; grade D; worst price on 0.0%)
6. theScore Bet: 7.5% of 30,696 sides quoted, over 7 days (5.9% coverage; grade D; worst price on 8.2%)
7. DraftKings: 7.4% of 38,576 sides quoted, over 7 days (7.4% coverage; grade D; worst price on 5.3%)
8. Bally Bet: 5.6% of 30,710 sides quoted, over 7 days (5.9% coverage; grade D; worst price on 6.3%)
9. BetOnline: 4.2% of 31,238 sides quoted, over 7 days (6.0% coverage; grade F; worst price on 4.6%)
10. Bovada: 3.7% of 29,508 sides quoted, over 7 days (5.6% coverage; grade F; worst price on 8.1%)
11. Fanatics: 2.8% of 20,064 sides quoted, over 7 days (3.8% coverage; grade F; worst price on 3.0%)
12. Hard Rock Bet: 2.0% of 27,916 sides quoted, over 7 days (5.3% coverage; grade F; worst price on 3.2%)
13. Caesars: 1.9% of 31,874 sides quoted, over 7 days (6.1% coverage; grade F; worst price on 1.1%)
14. Fliff: 1.1% of 36,056 sides quoted, over 7 days (6.9% coverage; grade F; worst price on 45.6%)
15. MyBookie: 0.4% of 24,342 sides quoted, over 7 days (4.6% coverage; grade F; worst price on 2.5%)
16. BetRivers: 0.1% of 30,728 sides quoted, over 7 days (5.9% coverage; grade F; worst price on 11.3%)
17. BetParx: 0.0% of 30,694 sides quoted, over 7 days (5.9% coverage; grade F; worst price on 0.0%)

Do prediction markets beat sportsbooks on price?

March 2026, measured the same way on both sides. Each group's denominator is the sides its own members actually quoted, so this is not distorted by the exchanges covering fewer games.

Exchange prices in this comparison are fee-adjusted: Kalshi and Polymarket include each venue's taker fee and ProphetX its commission on winning bets, so an exchange number is what a taker actually pays. We publish this comparison and not a "share of all best prices" figure, because best-price credit is shared among tied venues, which would hand the larger group an advantage that is an artefact of counting rather than of pricing.

Which book led each sport?

NCAAB

289,800 sides across 7 days. Leader: Pinnacle, at or tied for the best price on 11.5% of the 19,998 sides it quoted, which were 6.9% of this sport's recorded prices.

NHL

108,188 sides across 7 days. Leader: Pinnacle, at or tied for the best price on 18.7% of the 5,676 sides it quoted, which were 5.2% of this sport's recorded prices.

NBA

96,564 sides across 7 days. Leader: Pinnacle, at or tied for the best price on 29.0% of the 5,784 sides it quoted, which were 6.0% of this sport's recorded prices.

MLB

29,340 sides across 7 days. Leader: BetMGM, at or tied for the best price on 62.8% of the 7,152 sides it quoted, which were 24.4% of this sport's recorded prices.

How is this measured, and what does it not measure?

On every scan we record each venue's price on both sides of every game, then count how often each venue was at or tied for the highest payout on a side it quoted. Ties credit every venue holding the top price, so a book that consistently matches the market's best is not scored as though it lost. The full arithmetic, including how prediction-market fees are applied before any comparison, is on the methodology page.

This is best-or-tied share of each venue's own quoted sides. It is not the matched-lines metric. Because the denominator is only the sides a venue chose to quote, this measure rewards selective quoting: a venue that prices a narrow slice of the market and skips the rest can post a high share without ever beating the field on a like-for-like bet. That is what the coverage column beside each figure is there to expose.

The stricter measure, and this site's single source of truth for who actually has the best prices, is matched lines: it keeps only the games where every venue in the comparison quoted the same market at the same line, and ranks who won the price on those. It discards far more data and is much harder to lead. On that measure the exchanges do not lead, and no book dominates. The live matched-lines view is on Book Comparison, and the reasoning is set out in the correction of July 26, 2026. Where the two measures disagree, matched lines is the one to believe.