Tracked bookmakers · rank #27 of 146 by margin

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

5.69%
median margin
6.8%
best price on board
8,334
markets · 7 days
53%
flagged prices held

Across 8,334 markets observed in the last 7 days (8 sports, 106 leagues), BetOnline's median bookmaker margin was 5.69% — rank #27 of 146 tracked books (lower is better for bettors). Where at least five independent operators priced the same market, BetOnline had the single best price 6.8% of the time.

Margin, last 35 days daily median across every BetOnline market we captured · +2.1 pts over 35 days (widening — worse for bettors)
2026-07-27 · low 4.05%high 6.29%2026-08-30 · now 6.19%

Is BetOnline trustworthy?

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

4/5checks
verified
Operating company
BetOnline Group.
Licence
No regulator or licence number is stated by the operator on the page where we confirmed its identity.
Fees
No commission — cost is in the prices, about $5.38 per $100 staked all in
Does its posted price hold?
Of 721 BetOnline prices Omenizer flagged as market-beating in the last 90 days, 53% were still there or better when we looked again; 47% 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 BetOnline's whole board.
What Omenizer has measured
8,334 markets across 8 sports and 106 leagues in the last 7 days, priced against the rest of the market.

How BetOnline's prices compare

Market familyMedian margin
Moneyline / match result 5.79%
Handicaps / spreads 5.86%
Totals 4.76%

BetOnline margin by sport

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

SportMedian marginBest priceMarkets (7d)
Soccer 6.38%4.0%3,913
Tennis 4.71%12.0%2,391
Baseball 5.38%4.2%1,006
American Football 4.76%3.3%454
Basketball 6.39%11.7%304
Fighting 4.03%15.3%171
Golf 6.47%0.0%71

Who runs BetOnline

Operator: BetOnline Group. (reported — verification in progress) Sibling brands under the same operator: SportsBetting.ag.

Availability: accessible from BR, CA, US. (reported — verification in progress)

In the last 90 days, BetOnline posted the board-leading price on 721 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 5.69% margin means that, on a typical BetOnline market, prices pay out 5.69% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.

FAQ

Is BetOnline legit?
BetOnline is operated by BetOnline Group, which does not state a gaming licence on the page where we confirmed its identity. Independently of that, Omenizer has measured 8,334 BetOnline 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 BetOnline?
BetOnline is operated by BetOnline Group.
Is BetOnline licensed?
No licence or regulator is stated by BetOnline Group on the page where we confirmed its identity.
What is BetOnline's betting margin?
Measured across 8,334 markets in the last 7 days, BetOnline's median margin (overround) was 5.69% — rank #27 of 146 bookmakers Omenizer tracks. Lower is better for bettors.
How often does BetOnline have the best odds?
Where at least five independent operators priced the same market (clone brands sharing one price feed count once), BetOnline posted the single best price 6.8% of the time over the last 7 days.
How is BetOnline'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 BetOnline beats fair value — free account

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

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