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How accurate are the Holland - Eredivisie odds?

The closing prices of 1,667 finished games since Fri 13 Aug 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

1,667 games, 2 bookmakers
  • Closing favourite won 56% 932 of 1,667 games
  • Market Brier score 0.553 0 is perfect; a coin flip scores 0.667
  • Average closing payout 94.4% 100% minus the bookmakers' margin
  • Games covered 1,667 Fri 13 Aug 2021 to Sun 11 Oct 2026

11 of the 1,678 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 4.4% of 320 selections 10-20% chance: happened 15.0% of 862 selections 20-30% chance: happened 26.0% of 1,706 selections 30-40% chance: happened 35.1% of 704 selections 40-50% chance: happened 45.3% of 475 selections 50-60% chance: happened 51.6% of 341 selections 60-70% chance: happened 64.7% of 266 selections 70-80% chance: happened 80.5% of 205 selections 80-90% chance: happened 86.0% of 114 selections 100% 0%
Market said 0%100%
Happened
Market chancePriceSelectionsMarket saidHappenedDiff
0-10% 10.00 or longer 320 7.2% 4.4% -2.8 pts
10-20% 5.00 to 10.00 862 15.6% 15.0% -0.6 pts
20-30% 3.33 to 5.00 1,706 25.4% 26.0% +0.6 pts
30-40% 2.50 to 3.33 704 34.9% 35.1% +0.2 pts
40-50% 2.00 to 2.50 475 44.6% 45.3% +0.7 pts
50-60% 1.67 to 2.00 341 55.2% 51.6% -3.6 pts
60-70% 1.43 to 1.67 266 65.0% 64.7% -0.3 pts
70-80% 1.25 to 1.43 205 75.0% 80.5% +5.5 pts
80-90% 1.11 to 1.25 114 84.5% 86.0% +1.5 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 45.4% 43.8% -1.6 pts
Draw 22.8% 24.4% +1.6 pts
Away win 31.8% 31.8% 0.0 pts

The market's average closing chance for each outcome over all 1,667 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 1,428 0.540 -0.003 94.0%
Bet365 1,627 0.557 +0.005 94.6%

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 Holland Eredivisie odds?
Across 1,667 finished Holland Eredivisie games since 2021, the closing favourite won 56% of the time. The market's closing chance, with the bookmakers' margin removed, gave the home side 45.4% on average and home wins happened 43.8% 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 0.553 in this league; the lowest single bookmaker is Unibet at 0.540. 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 5.6% here, still has to be cleared: the closing line value calculator shows what a price needs to beat.