AFL Favourites Trailing at Half-Time: Comeback Rate by Price
A favourite behind at the main break is far from finished. How far from finished depends on how short it started and how many points it has to make up.
If the AFL pre-game favourite is behind at half-time, how often does it still win, by its starting price and the size of the deficit?
- A36.2%Favourites that won after trailing at HT (932)
- B49.0%Won when priced under 1.30 and behind at HT
- C20.5%Won: priced 1.60+, 13-24 points behind
- D93.6%Won when leading by 13+ at HT
Few things in footy shift the mood like a hot favourite walking off at half-time behind on the scoreboard. I wanted to know how often those sides actually recover, split by starting price and by deficit. I keep this in mind when I put together this round's AFL tips, because the answer changes how I read a live market at the main break.
The headline is that favourites trailing at half-time won 36.2% of the time, against 69.7% for all favourites. That is a steep drop, but it is not a collapse. A short-priced favourite under 1.30 still won 49.0% from behind, and a favourite only a goal down was often better than even money to win. The size of the gap matters at least as much as the starting price.
Branch AHalf-time state splits favourites into very different fates
Start with every priced favourite, sorted by where it stood at the break. Favourites leading by 13+ won 93.6% across 1,234 matches, and those leading by 1-12 won 74.0%. Once they fall behind, the picture changes. Trailing by 1-12, they won 51.3%, close to a coin toss, while trailing by 13+ the rate falls to 20.9%.
View the data: every favourite by half-time state
| Won | Drew | Lost | |
|---|---|---|---|
| Led by 13+ (1,234) | 93.6% | 0.2% | 6.2% |
| Led by 1-12 (546) | 74.0% | 1.8% | 24.2% |
| Level (43) | 58.1% | 0.0% | 41.9% |
| Trailed by 1-12 (468) | 51.3% | 1.5% | 47.2% |
| Trailed by 13+ (464) | 20.9% | 0.6% | 78.4% |
What strikes me is how sharp the break is at about two goals. A narrow deficit leaves the favourite with a genuine chance to win, while a bigger one turns it into an outsider. On a tight ground or a wet afternoon, I would expect that two-goal line to feel even heavier, because the scoring rate drops.
Branch BEvery price band loses roughly half its chance when trailing
This chart sets each band's pre-game implied chance against what actually happened once it was behind at half-time. Under 1.30, the market implied 80.7% before the bounce and the trailing side won 49.0%. At 1.30-1.59 it went from 66.0% to 36.7%, and at 1.60 or longer from 54.7% to 25.8%.
Be clear about one thing. Once you know the favourite is behind at half-time, that pre-game price can no longer be bet. The implied figure is there only to show how much a trailing scoreline has cost the favourite.
95% range on the won rate. Prices June 2009-2023.
View the data: favourites behind at half-time: priced vs actual
| Pre-game implied | Won after trailing at HT | 95% range | |
|---|---|---|---|
| Under 1.30 (245 trailing at HT) | 80.7% | 49.0% | ยฑ6.3 |
| 1.30-1.59 (365 trailing at HT) | 66.0% | 36.7% | ยฑ5 |
| 1.60 or longer (322 trailing at HT) | 54.7% | 25.8% | ยฑ4.8 |
The shortest favourites hold their quality best. A side priced under 1.30 that trails is still roughly as likely to win as not. I put that down to the gap in contested ball and clearance work that made them short in the first place, and that gap does not go away at the break.
Branch CSmall deficits keep short favourites firmly alive
The grid crosses starting price with the half-time deficit. A favourite under 1.30 that was 1-6 points down won 67.5%, and at 7-12 down it still won 61.5%. At the other end, the same band won only 8.3% from 25+ behind, across 36 matches.
Smallest cell has 36 matches.
View the data: trailing favourite: won % by price and ht deficit
| 1-6 pts | 7-12 pts | 13-24 pts | 25+ pts | |
|---|---|---|---|---|
| Under 1.30 | 67.5% | 61.5% | 34.4% | 8.3% |
| 1.30-1.59 | 51.0% | 47.5% | 32.7% | 13.0% |
| 1.60 or longer | 42.9% | 35.4% | 20.5% | 9.8% |
The longer bands follow the same pattern from a lower starting point. A favourite at 1.30-1.59 won 51.0% from 1-6 down and 32.7% from 13-24 down. At 1.60 or longer it won 42.9%, 20.5% and 9.8% as the gap widened. These cells are small, so I treat any single cell as a rough guide rather than a fixed figure.
Branch DLonger favourites trail more often and recover less
The table pulls it together. Favourites under 1.30 were behind at half-time in only 22.6% of 1,084 games, while those at 1.60 or longer trailed 47.6% of the time. The weaker the favourite, the more often it trails, and the less often it recovers.
| Pre-game price | Favourites | Behind at HT | Won | Fair odds | Pre-game implied |
|---|---|---|---|---|---|
| Under 1.30 | 1,084 | 22.6% | 49.0% | 2.02 | 80.7% |
| 1.30-1.59 | 994 | 36.7% | 36.7% | 2.69 | 66.0% |
| 1.60 or longer | 676 | 47.6% | 25.8% | 3.79 | 54.7% |
The fair-odds column is the part I use most: 2.02 for a trailing favourite that started under 1.30, 2.69 for 1.30-1.59 and 3.79 for 1.60 or longer. These are historical base rates, and live prices already react to the score. Compare a live quote with these figures, and treat the comparison as a sense-check, not a system.
If this happensโฆ
Trailing by 1-12, favourites won 51.3%, while trailing by 13+ they won 20.9%. Check the margin before you check the price.
A side under 1.30 that trailed by 1-6 points won 67.5%. If a live market treats it as a clear outsider, take a closer look.
A favourite at 1.60 or longer won only 9.8% from 25+ points down. Treat the pre-game favourite tag as nearly meaningless at that point.
Questions bettors ask
How often does an AFL favourite win after trailing at half-time?
Across 932 favourites behind at the break, 36.2% went on to win, 1.1% drew and 62.8% lost.
What are fair odds for a short favourite losing at half-time?
A favourite priced under 1.30 before the game that was behind at half-time won 49.0%, which works out to fair odds of 2.02. Live prices will already reflect the score.
How often does a favourite with a big half-time lead go on to win?
Favourites leading by 13+ at half-time won 93.6% across 1,234 matches. That is very strong, but 6.2% of those games were still lost.
I'm Sanne Visser, based in Amsterdam, and I write the Australian rules betting tips at cricketscoretips.com โ where ground size, travel and contested ball matter more than the ladder lets on.
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