Tracked bookmakers · rank #53 of 146 by margin

Coolbet review: who runs it, and are the odds any good?

6.92%
median margin
8.3%
best price on board
13,520
markets · 7 days
48%
flagged prices held
#95,094
site rank · top 1M

Across 13,520 markets observed in the last 7 days (9 sports, 104 leagues), Coolbet's median bookmaker margin was 6.92% — rank #53 of 146 tracked books (lower is better for bettors). Where at least five independent operators priced the same market, Coolbet had the single best price 8.3% of the time.

Margin, last 35 days daily median across every Coolbet market we captured · +2.0 pts over 35 days (widening — worse for bettors)
2026-07-27 · low 5.07%high 8.02%2026-08-30 · now 7.15%

Is Coolbet trustworthy?

We publish the checks, not a score — every ✓ links or cites its source, and anything we could not establish says so.

6/7checks
verified
Operating company
Polar Limited. source
Licence
Malta Gaming Authority MGA/CRP/681/2019 (status: Licensed)
~
Licensed markets
CA, CL, EC, EE, FI, NO, PE, SE, US — reported to us and not yet verified against a regulator, so treat as a lead rather than a fact.
Fees
No commission — cost is in the prices, about $6.47 per $100 staked all in
Does its posted price hold?
Of 1,026 Coolbet prices Omenizer flagged as market-beating in the last 90 days, 48% were still there or better when we looked again; 52% had moved against the bettor and 0% had the market pulled. Measured only on prices we flagged as outliers — the ones most likely to be corrected — so read it against other books here, not as a share of Coolbet's whole board.
How big is the site?
coolbet.com ranks #95,094 among the world's million most-visited domains (Tranco, 2026-08-31). Popularity, not quality — a big site can still price badly.
What Omenizer has measured
13,520 markets across 9 sports and 104 leagues in the last 7 days, priced against the rest of the market.

How Coolbet's prices compare

Market familyMedian margin
Moneyline / match result 6.07%
Handicaps / spreads 6.96%
Totals 5.00%

Coolbet margin by sport

Only sports with 50+ observed Coolbet markets in the last 7 days are shown — a median over less is noise.

SportMedian marginBest priceMarkets (7d)
Soccer 6.90%11.6%5,843
Tennis 7.11%6.8%5,016
Baseball 6.98%2.2%1,703
Basketball 6.98%8.8%442
American Football 4.98%7.1%405
Fighting 4.13%9.7%67

Who runs Coolbet

Operator: Polar Limited. (source, checked 2026-08-15)

Availability: licensed in CA, CL, EC, EE, FI, NO, PE, SE, US; accessible from MX. (reported — verification in progress)

In the last 90 days, Coolbet posted the board-leading price on 1,026 signals flagged by Omenizer's detection engine.

The margin is the bookmaker's built-in fee: the amount by which its implied probabilities exceed 100%. A 6.92% margin means that, on a typical Coolbet market, prices pay out 6.92% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.

FAQ

Is Coolbet legit?
Coolbet is operated by Polar Limited, licensed under Malta Gaming Authority MGA/CRP/681/2019 (status: Licensed). Independently of that, Omenizer has measured 13,520 Coolbet markets in the last 7 days against the rest of the market, so its prices are observable rather than taken on trust. We publish the checks we can evidence and flag the ones we cannot — we do not certify bookmakers.
Who owns Coolbet?
Coolbet is operated by Polar Limited.
Is Coolbet licensed?
Malta Gaming Authority MGA/CRP/681/2019 (status: Licensed).
What is Coolbet's betting margin?
Measured across 13,520 markets in the last 7 days, Coolbet's median margin (overround) was 6.92% — rank #53 of 146 bookmakers Omenizer tracks. Lower is better for bettors.
How often does Coolbet have the best odds?
Where at least five independent operators priced the same market (clone brands sharing one price feed count once), Coolbet posted the single best price 8.3% of the time over the last 7 days.
How is Coolbet's margin measured?
Omenizer records every price on every tracked market, converts them to implied probabilities, and sums each market's sides; the amount over 100% is the bookmaker's margin. The figure here is the median across all of the book's observed markets — measured, not quoted from marketing material.
See where Coolbet beats fair value — free account

Live reference — data refreshes daily · the dataset · all tracked bookmakers

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