Tracked bookmakers · rank #62 of 145 by margin

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

7.02%
median margin
6.6%
best price on board
10,174
markets · 7 days
51%
flagged prices held

Across 10,174 markets observed in the last 7 days (6 sports, 106 leagues), Jazz Sports's median bookmaker margin was 7.02% — rank #62 of 145 tracked books (lower is better for bettors). Where at least five independent operators priced the same market, Jazz Sports had the single best price 6.6% of the time.

Margin, last 35 days daily median across every Jazz Sports market we captured · -2.1 pts over 35 days (tightening — better for bettors)
2026-07-27 · low 4.76%high 7.56%2026-08-30 · now 4.76%

Is Jazz Sports trustworthy?

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

3/5checks
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 $6.56 per $100 staked all in
Does its posted price hold?
Of 352 Jazz Sports prices Omenizer flagged as market-beating in the last 90 days, 51% were still there or better when we looked again; 49% had moved against the bettor and 1% 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 Jazz Sports's whole board.
What Omenizer has measured
10,174 markets across 6 sports and 106 leagues in the last 7 days, priced against the rest of the market.

How Jazz Sports's prices compare

Market familyMedian margin
Moneyline / match result 6.97%
Handicaps / spreads 6.89%
Totals 4.76%

Jazz Sports margin by sport

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

SportMedian marginBest priceMarkets (7d)
Soccer 4.88%12.7%4,095
Tennis 11.69%0.0%3,402
Baseball 7.01%1.5%1,478
American Football 4.76%13.9%657
Basketball 6.98%3.1%531

Who runs Jazz Sports

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

In the last 90 days, Jazz Sports posted the board-leading price on 352 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 7.02% margin means that, on a typical Jazz Sports market, prices pay out 7.02% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.

FAQ

Is Jazz Sports legit?
Omenizer has not yet verified which company operates Jazz Sports or what licence it holds — a gap in our research rather than a finding against the book. Independently of that, Omenizer has measured 10,174 Jazz Sports 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 Jazz Sports?
Omenizer has not yet verified the company behind Jazz Sports. 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 Jazz Sports licensed?
Not established — we have not confirmed a licence for Jazz Sports.
What is Jazz Sports's betting margin?
Measured across 10,174 markets in the last 7 days, Jazz Sports's median margin (overround) was 7.02% — rank #62 of 145 bookmakers Omenizer tracks. Lower is better for bettors.
How often does Jazz Sports have the best odds?
Where at least five independent operators priced the same market (clone brands sharing one price feed count once), Jazz Sports posted the single best price 6.6% of the time over the last 7 days.
How is Jazz Sports'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 Jazz Sports beats fair value — free account

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

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