Proline review: who runs it, and are the odds any good?
Across 8,427 markets observed in the last 7 days (7 sports, 31 leagues), Proline's median bookmaker margin was 7.30% — rank #80 of 146 tracked books (lower is better for bettors). Where at least five independent operators priced the same market, Proline had the single best price 7.5% of the time.
Is Proline trustworthy?
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How Proline's prices compare
| Market family | Median margin |
|---|---|
| Moneyline / match result | 6.43% |
| Handicaps / spreads | 6.96% |
| Totals | 4.97% |
Proline margin by sport
| Sport | Median margin | Best price | Markets (7d) |
|---|---|---|---|
| Tennis | 7.32% | 7.0% | 3,440 |
| Soccer | 8.19% | 5.7% | 2,287 |
| Baseball | 6.81% | 5.3% | 1,590 |
| American Football | 4.97% | 22.2% | 683 |
| Basketball | 6.75% | 4.8% | 362 |
Who runs Proline
Operator: Ontario Lottery and Gaming Corporation (OLG).
Availability: licensed in CA, US.
In the last 90 days, Proline posted the board-leading price on 47 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 7.30% margin means that, on a typical Proline market, prices pay out 7.30% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.
FAQ
- Is Proline legit?
- Proline is operated by Ontario Lottery and Gaming Corporation (OLG), licensed under Ontario Crown agency — conducts and manages gaming rather than holding an operator licence. Independently of that, Omenizer has measured 8,427 Proline 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 Proline?
- Proline is operated by Ontario Lottery and Gaming Corporation (OLG).
- Is Proline licensed?
- Ontario Crown agency — conducts and manages gaming rather than holding an operator licence.
- What is Proline's betting margin?
- Measured across 8,427 markets in the last 7 days, Proline's median margin (overround) was 7.30% — rank #80 of 146 bookmakers Omenizer tracks. Lower is better for bettors.
- How often does Proline have the best odds?
- Where at least five independent operators priced the same market (clone brands sharing one price feed count once), Proline posted the single best price 7.5% of the time over the last 7 days.
- How is Proline'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.