Measured, not promised
The crypto sportsbook margin index
Review sites tell you a book has “competitive odds”. Nobody shows the number. We capture real prices from crypto sportsbooks — same fixtures, logged out where the book allows it — and publish the overround with a date on every row.
Every captured price, cheapest first
| Book | Event | Market | Odds (as captured) | Overround | Sampled |
|---|---|---|---|---|---|
| Duel | France vs Morocco — FIFA World Cup | football-1x2 | 1.62 / 4.10 / 6.40 | 1.74% | 2026-07-08 |
| Duel | Spain vs Belgium — FIFA World Cup | football-1x2 | 1.66 / 4.10 / 5.60 | 2.49% | 2026-07-08 |
| Duel | G2 vs T1 — LoL MSI 2026 (live) live | esports | 1.75 / 2.14 | 3.87% | 2026-07-08 |
| Duelbits | Spain vs Belgium — FIFA World Cup | football-1x2 | 1.64 / 4.05 / 5.45 | 4.02% | 2026-07-08 |
| Duelbits | France vs Morocco — FIFA World Cup | football-1x2 | 1.61 / 4.00 / 5.90 | 4.06% | 2026-07-08 |
| Cloudbet | Norway vs England — FIFA World Cup | football-1x2 | 4.35 / 3.75 / 1.81 | 4.90% | 2026-07-08 |
| Cloudbet | Spain vs Belgium — FIFA World Cup | football-1x2 | 1.61 / 3.95 / 5.60 | 5.29% | 2026-07-08 |
| Cloudbet | France vs Morocco — FIFA World Cup | football-1x2 | 1.58 / 3.80 / 6.35 | 5.35% | 2026-07-08 |
| Cloudbet | Argentina vs Switzerland — FIFA World Cup | football-1x2 | 1.71 / 3.45 / 5.55 | 5.48% | 2026-07-08 |
| Cloudbet | Tennis match-winner, in-play (Wimbledon week; teams not recorded) live | tennis | 2.08 / 1.74 | 5.55% | 2026-07-08 |
| Thunderpick | Atreides vs Eternal (live, esports hub) live | esports | 1.15 / 4.80 | 7.79% | 2026-07-08 |
| Thunderpick | GamerLegion vs Xtreme (esports hub) | esports | 4.24 / 1.89 / 2.90 | 10.98% | 2026-07-08 |
| Thunderpick | REKONIX vs MOUZ (esports hub) | esports | 6.11 / 2.04 / 2.19 | 11.05% | 2026-07-08 |
| Thunderpick | Power Rangers vs BB (esports hub) | esports | 10.18 / 2.55 / 1.60 | 11.54% | 2026-07-08 |
| Duel | Dota 2 EWC 2026 match (live) live | esports | 10.00 / 3.20 / 1.38 | 13.71% | 2026-07-08 |
Every row is a real price we captured, with its capture date. Overround = (Σ 1/odds − 1) × 100. Sample counts are still below our n≥6 bar for publishing medians — treat these as first data points, not averages.
Want the same comparison on one fixture, book against book? The de-vig tool has a “compare our sampled books” mode, and it strips the vig from any odds you paste in. How rows get here — sampling windows, the n≥6 rule for medians, proof archive — is on the methodology page.
What the numbers mean
The margin (overround, vig, juice — same thing, different bases) is the bookmaker’s built-in price on every bet. A 2% book takes $2 of every $100 of fair value; an 11% esports market takes $11. It is the single biggest controllable cost of betting — bigger than any bonus for a regular bettor.
| Reference point | Margin | Source |
|---|---|---|
| Duel — World Cup 1X2, our sample | 1.74–2.49% | OverroundHQ sample, 8 Jul 2026 |
| Pinnacle's advertised benchmark | ≈2–2.5% | Pinnacle, 2018 (their own figures) |
| Duelbits — World Cup 1X2, our sample | 4.02–4.06% | OverroundHQ sample, 8 Jul 2026 |
| Standard US pricing (-110/-110) | 4.76% | BettingUSA, updated Jun 2026 |
| Cloudbet — World Cup 1X2, our sample | 4.90–5.48% | OverroundHQ sample, 8 Jul 2026 |
| Thunderpick — esports, our sample | 7.79–11.54% | OverroundHQ sample, 8 Jul 2026 |
| Industry football average, 2024/25 feed | 11.8% | OddsMatrix via Casino.Guru news |
Operator claims are dated and attributed; our samples carry their capture date. None of this is a live quote.
Dig into a market
Football 1X2
The most liquid market in the basket — and where the pricing gap between books was widest in our first sample: 1.74% to 5.48% on the same fixtures.
Esports (CS2 · Dota 2 · LoL)
The priciest corner we measured: 7.8–11.5% overrounds at the esports reference book. Big margins hide well in odds nobody converts to percentages.
Tennis
Clean two-way markets — the easiest place to see what stripping the vig does to a price.
Margin history
The index only matters if it repeats. This page accumulates every sampling round so pricing habits become visible over time.
Why trust these numbers
Three rules, enforced on every row: real captured prices only (screenshot or API dump archived, capture date shown), no medians before six samples per book and market, and stale flags when a number outlives its two-week shelf life. The full procedure — including what we do when a book blocks logged-out browsing — is on the methodology page. What we are not: a bookmaker, a tipster, or a “trusted casinos” list. See how crypto books compare with regulated ones and what “zero margin” offers actually contain.
Common questions
Which crypto sportsbook had the lowest margin in your sample?
In our first dated basket sample (8 July 2026), Duel priced World Cup 1X2 fixtures at 1.74% and 2.49% overround — the sharpest football prices in the basket. Duelbits ran ~4.0%, Cloudbet 4.9–5.5%, and Thunderpick's esports markets 7.8–11.5%. Sample counts are still below our n≥6 bar, so treat these as first data points, not averages.
What is a good sportsbook margin?
Pinnacle — the traditional low-margin reference — advertises roughly 2–2.5% (their own 2018 figures). Standard US pricing of -110/-110 works out to 4.76% overround. Anything under ~3% is sharp; 5%+ on a liquid market is expensive; recreational books can run 7–10% or more.
How do you calculate the margin?
Overround = (sum of 1/decimal-odds across all outcomes − 1) × 100. Example: 1.62 / 4.10 / 6.40 on a 1X2 market sums to 101.74% — a 1.74% overround. Our methodology page shows the full sampling procedure.
Are these numbers live odds?
No. Every figure is a dated sample — a real price we captured at a specific moment, kept with its capture date and source. Prices move constantly; use the index to compare pricing habits between books, then check the live betslip.