We measured market depth across 500 AFL pricing rows covering 245 fixtures and 11 bookmakers. One operator offered 861 markets on a single game. Another offered one. The gap between the deepest and thinnest AFL card is roughly 800 markets, and it changes what you can actually bet.
A head-to-head between the two AU-focused odds APIs. Bookmaker depth, racing coverage, Betfair Exchange, closing-line archive, streaming, webhooks and what each actually costs.
Odds comparison is the most valuable and least glamorous thing a punter can do. It requires no handicapping skill, no model, and no opinion about the sport. You place the bet you were already going to place, at a better price, and keep the difference.
Across the Australian market that difference averages 3-4% on head-to-head markets and considerably more on props and racing. The question is not whether to compare odds — it is which tool to compare them with, because the sites doing it vary enormously in coverage, freshness and independence.
Six criteria, in rough order of importance.
| Criterion | What to check | Why it matters |
|---|---|---|
| Independent price sources | How many genuinely separate trading operations, not brands | Twenty white-labels on one platform is one price |
| Update frequency | Capture timestamps on displayed prices | A stale price reads as the best price |
| Market depth | Lines, totals, props, alternates — not just H2H | H2H is the tightest market on the board |
| Independence | Affiliate disclosure; are non-affiliate books listed? | Ranking incentives distort what you are shown |
| Racing coverage | Meetings, all three codes, exchange prices | Racing has the widest price dispersion |
| Derived signals | Book percentage, arbs, low holds, movement | Turns raw prices into decisions |
This deserves its own explanation because every comparison site markets on it. Australia has 140+ bookmaker brands but only around eleven independent pricing operations. The rest run on shared white-label platforms — GenWeb, PuntersTech, BetMakers, Amused and a few smaller ones — where dozens of brands display an identical price from one feed.
So a site advertising "compare 60 bookmakers" may be showing you eight distinct numbers repeated. The useful metric is independent sources, and almost nobody publishes it. The workaround: pick a market, look at the price list, and count how many distinct values appear.
The largest group. These are primarily bookmaker acquisition businesses with a comparison table attached. Revenue comes from referral commission, so the product is optimised for clicks to signup pages rather than for finding the best price.
Tells: a "top bookmakers" panel above the actual odds table; prominent signup bonus messaging; missing coverage of books that run no affiliate program; odds tables that only cover head-to-head.
Useful for: a rough sense of the market. Not for genuinely finding the best price, because the coverage gaps are shaped by commercial relationships rather than by what is available.
Australia has a strong tradition of racing-specific price comparison, and these tools are often genuinely good at what they do — full fields, all bookmakers, tote and fixed side by side.
Limitation: sport coverage is usually an afterthought, and exchange prices are frequently missing. Given that Betfair is often the best available price in Australian racing, a racing comparison without it is incomplete.
Comparison as one feature within a broader toolset — arbitrage, +EV, movement tracking, historical archives, APIs. Higher ceiling, more to learn, and usually a paid tier for the real-time features.
Useful for: anyone whose betting is systematic rather than recreational, and anyone building their own tooling.
Occasionally a book will show "we are $0.10 better than the competition" on a selected market. This is marketing, not comparison. The market shown is chosen precisely because they are best on it.
Numbers from the Australian market, measured across a typical week:
| Market | Avg best-worst gap | Value of taking best | Books that regularly lead |
|---|---|---|---|
| AFL head to head | 3.2% | ~1.6% of turnover | Varies round to round |
| NRL head to head | 3.5% | ~1.7% | Varies |
| EPL 1X2 | 4.1% | ~2.0% | Deeper international books |
| NBA totals | 3.8% | ~1.9% | US-focused books |
| Player props | 6–15% | ~4%+ | Highly variable |
| Thoroughbred win | 8–15% | ~4–7% | Exchange frequently best |
| Greyhound win | 10–20% | ~5–9% | Exchange, top-fluc promos |
Two things jump out. Racing dispersion is roughly triple sports dispersion, so comparison discipline pays far more per dollar there. And no single bookmaker leads consistently — "best odds guaranteed" marketing notwithstanding, which book is best rotates by market and by day. That rotation is precisely why comparison works.
For transparency: this is our own product, so weigh accordingly. The design choices are stated so you can check them against anything else you evaluate.
The full ingestion list — every bookmaker, market, prop key and data source — is published on the coverage page.
Every Australian punter should have a comparison screen open when they bet. Which one matters less than whether you use it consistently — a mediocre tool used every time beats an excellent one used occasionally.
That said, judge candidates on independent source count, price freshness, market depth beyond head-to-head, and whether their revenue comes from you or from the bookmakers they rank. Those four questions separate the tools built to find you a price from the ones built to find a bookmaker a customer.
140+ Australian bookmakers plus the Betfair Exchange, across sport and all three racing codes, with timestamps, book percentage and opportunity detection built in.
Open odds comparison →
David has been running advantage betting strategies across Australian bookmakers since 2023 and contributes long-form retrospectives, case studies, and operational pieces drawn from years of running real bets in AU markets. His writing focuses on the realities of running a sustainable AU advantage operation — what works, what fails, and the operational details most blogs gloss over.
