Tracked bookmakers · rank #43 of 141 by margin

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

6.49%
median margin
3.5%
best price on board
1,628
markets · 7 days

Across 1,628 markets observed in the last 7 days (8 sports, 46 leagues), marathon's median bookmaker margin was 6.49% — rank #43 of 141 tracked books (lower is better for bettors). Where at least five independent operators priced the same market, marathon had the single best price 3.5% of the time.

Margin, last 22 days daily median across every marathon market we captured · +0.0 pts over 22 days (stable)
2026-07-27 · low 5.43%high 7.24%2026-08-17 · now 5.49%

Is marathon trustworthy?

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

2/4checks
verified
?
Operating company
Not established — Omenizer has not yet verified who operates this book. That is a gap in our research, not a finding about the book.
?
Licence
Not established.
Fees
No commission — cost is in the prices, about $6.09 per $100 staked all in
What Omenizer has measured
1,628 markets across 8 sports and 46 leagues in the last 7 days, priced against the rest of the market.

How marathon's prices compare

Market familyMedian margin
Moneyline / match result 5.44%
Handicaps / spreads 5.85%

marathon margin by sport

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

SportMedian marginBest priceMarkets (7d)
Soccer 7.22%1.5%639
Baseball 5.45%7.1%579
Tennis 5.48%0.4%343

The margin is the bookmaker's built-in fee: the amount by which its implied probabilities exceed 100%. A 6.49% margin means that, on a typical marathon market, prices pay out 6.49% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.

FAQ

Is marathon legit?
Omenizer has not yet verified which company operates marathon or what licence it holds — a gap in our research rather than a finding against the book. Independently of that, Omenizer has measured 1,628 marathon 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 marathon?
Omenizer has not yet verified the company behind marathon. We record an operator only when we have read it on the operator's own site or a regulator's register, so this is an unfilled gap rather than a guess we declined to make.
Is marathon licensed?
Not established — we have not confirmed a licence for marathon.
What is marathon's betting margin?
Measured across 1,628 markets in the last 7 days, marathon's median margin (overround) was 6.49% — rank #43 of 141 bookmakers Omenizer tracks. Lower is better for bettors.
How often does marathon have the best odds?
Where at least five independent operators priced the same market (clone brands sharing one price feed count once), marathon posted the single best price 3.5% of the time over the last 7 days.
How is marathon'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 marathon beats fair value — free account

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

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