Skip to main content

How accurate are the Australia - NRL odds?

The closing prices of 845 finished games since Thu 1 Jul 2021, set against what happened: the chance the market gave, with the bookmakers' margin removed, next to how often it came in. A record of what the market did, not a tip.

The market's record

845 games, 2 bookmakers
  • Closing favourite won 67% 562 of 845 games
  • Market Brier score 0.438 0 is perfect; a coin flip scores 0.667
  • Average closing payout 92.8% 100% minus the bookmakers' margin
  • Games covered 845 Thu 1 Jul 2021 to Sun 8 Mar 2026

85 of the 930 games finished in that time are left out: no bookmaker had a closing price on every outcome.

Market chance against what happened

0-10% chance: happened 4.9% of 884 selections 10-20% chance: happened 13.3% of 150 selections 20-30% chance: happened 22.2% of 239 selections 30-40% chance: happened 33.5% of 245 selections 40-50% chance: happened 49.3% of 223 selections 50-60% chance: happened 47.3% of 239 selections 60-70% chance: happened 70.9% of 227 selections 70-80% chance: happened 77.0% of 204 selections 80-90% chance: happened 84.1% of 107 selections 100% 0%
Market said 0%100%
Happened
Market chancePriceSelectionsMarket saidHappenedDiff
0-10% 10.00 or longer 884 4.0% 4.9% +0.9 pts
10-20% 5.00 to 10.00 150 15.5% 13.3% -2.2 pts
20-30% 3.33 to 5.00 239 25.4% 22.2% -3.2 pts
30-40% 2.50 to 3.33 245 35.3% 33.5% -1.8 pts
40-50% 2.00 to 2.50 223 45.0% 49.3% +4.3 pts
50-60% 1.67 to 2.00 239 55.2% 47.3% -7.9 pts
60-70% 1.43 to 1.67 227 65.1% 70.9% +5.8 pts
70-80% 1.25 to 1.43 204 74.7% 77.0% +2.3 pts
80-90% 1.11 to 1.25 107 85.0% 84.1% -0.9 pts

Every priced outcome of every game is one selection. "Market said" is the bookmakers' average implied probability with the margin removed; "Happened" is how often that outcome came in. On the diagonal the market was right on average; above it, that kind of result happened more often than the prices said. Bands with fewer than 30 selections are left out.

Home, draw and away

OutcomeMarket saidHappenedDiff
Home win 52.9% 53.8% +0.9 pts
Draw 3.8% 4.6% +0.8 pts
Away win 43.3% 41.5% -1.8 pts

The market's average closing chance for each outcome over all 845 games against the share of games it won, settled on the regular-time score. "Home" is the first-named side.

Bookmaker accuracy

lower is better
BookmakerGamesBrier scorevs market averagePayout
Unibet 818 0.430 -0.004 92.7%
Bet365 704 0.436 +0.010 92.9%

Each bookmaker's own closing prices, margin removed, scored against the results of the games it priced; "vs market average" compares it with the bookmakers' average on the same games, so a negative figure means its prices were the closer. Bookmakers with fewer than 50 priced games are left out. Differences of a few thousandths are noise; a much higher score usually means the bookmaker's last price was captured well before the start, so it is the price in our archive being scored, not the trader.

Odds accuracy FAQ

How accurate are Australia NRL odds?
Across 845 finished Australia NRL games since 2021, the closing favourite won 67% of the time. The market's closing chance, with the bookmakers' margin removed, gave the home side 52.9% on average and home wins happened 53.8% of the time. The bands above show the same comparison price by price: a well-calibrated market has outcomes happening about as often as its prices say.
What is a Brier score?
The squared distance between the chances a bookmaker's prices gave and what happened, averaged over games: 0 would be perfect foresight, and on a three-way market a coin-flip price scores 0.667. The market average's closing prices score 0.438 in this league; the lowest single bookmaker is Unibet at 0.430. Differences of a few thousandths between bookmakers are noise, not skill.
Does a well-calibrated market mean the odds cannot be beaten?
Calibration says the market is right on average, not on every game. A band where outcomes happened more often than the prices said is where the closing market under-priced that kind of result over these seasons, which is often the draw or the outsider. The bookmaker's margin, about 7.2% here, still has to be cleared: the closing line value calculator shows what a price needs to beat.