4cx review: who runs it, and are the odds any good?
2.90%
median margin
8.5%
best price on board
1,140
markets · 7 days
56%
flagged prices held
Across 1,140 markets observed in the last 7 days (7 sports, 15 leagues), 4cx's median bookmaker margin was 2.90% — rank #6 of 143 tracked books (lower is better for bettors). Where at least five independent operators priced the same market, 4cx had the single best price 8.5% of the time.
Margin, last 41 days daily median across every 4cx market we captured · -1.4 pts over 41 days (tightening — better for bettors)
Is 4cx trustworthy?
3/6checks
verified
verified
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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.
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Licence
Not established.
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Licensed markets
US — reported to us and not yet verified against a regulator, so treat as a lead rather than a fact.
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Fees
No commission — cost is in the prices, about $2.82 per $100 staked all in
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Does its posted price hold?
Of 225 4cx prices Omenizer flagged as market-beating in the last 90 days, 56% were still there or better when we looked again; 44% had moved against the bettor and 0% had the market pulled.
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What Omenizer has measured
1,140 markets across 7 sports and 15 leagues in the last 7 days, priced against the rest of the market.
How 4cx's prices compare
| Market family | Median margin |
|---|---|
| Moneyline / match result | 2.09% |
| Handicaps / spreads | 2.44% |
| Totals | 2.51% |
4cx margin by sport
| Sport | Median margin | Best price | Markets (7d) |
|---|---|---|---|
| American Football | 2.71% | 7.6% | 782 |
| Tennis | 2.63% | 10.9% | 158 |
| Baseball | 3.36% | 12.4% | 90 |
Who runs 4cx
Availability: licensed in US.
In the last 90 days, 4cx posted the board-leading price on 225 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 2.90% margin means that, on a typical 4cx market, prices pay out 2.90% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.
FAQ
- Is 4cx legit?
- Omenizer has not yet verified which company operates 4cx or what licence it holds — a gap in our research rather than a finding against the book. Independently of that, Omenizer has measured 1,140 4cx 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 4cx?
- Omenizer has not yet verified the company behind 4cx. 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 4cx licensed?
- Not established — we have not confirmed a licence for 4cx.
- What is 4cx's betting margin?
- Measured across 1,140 markets in the last 7 days, 4cx's median margin (overround) was 2.90% — rank #6 of 143 bookmakers Omenizer tracks. Lower is better for bettors.
- How often does 4cx have the best odds?
- Where at least five independent operators priced the same market (clone brands sharing one price feed count once), 4cx posted the single best price 8.5% of the time over the last 7 days.
- How is 4cx'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.