NRL Favourites Drifting at Half-Time: Comeback Rates by Price
When an NRL favourite's price drifts by the break, the market still overrates the comeback. Here is how often it wins, and how the match finishes, at each half-time price.
When an NRL favourite's price drifts at half-time, how often does it still win at each half-time price, and how does the match finish?
- A19.4%favourites out to 2.00+ at half-time that won, vs 33.6% break-even
- B10.5%favourites out to 3.00-4.99 at half-time that won
- C35.4%of kick-off favourites drifted by half-time
- D+3.1%return backing the opponent of a 2.00-2.99 favourite
Rugby league has a reputation for big second-half swings, and that reputation shapes half-time prices. The question here is simple: when the kick-off favourite has drifted by the break, how often does it still win, and does the half-time price reflect that? Of the kick-off favourites in this sample, 35.4% had drifted by half-time, so this situation comes up often.
The headline answer is the comeback is overpriced. Favourites pushed out to 2.00 or bigger at half-time won 19.4% of the time against a 33.6% break-even rate. I use this study alongside my rugby league predictions page whenever a favourite goes to the sheds looking flat. Once the half-time state is known, the kick-off price can no longer be bet. Every comparison below sets the half-time price against what actually happened.
Branch ADrifting favourites win far less than their price implies
Each row pairs the break-even rate at the favourite's half-time price with how often it actually won. The data has no half-time scores. So when I say "behind", I mean the market had lengthened the favourite's price, not that the scoreboard showed a deficit.
At the short end the gaps are small. Favourites still at 1.01-1.19 won 90.7% against 93.6% break-even. Once the price crosses 1.50, the gap opens wide. At 1.50-1.99 they won 47.3% against 59.7%, and at 2.00-2.99 they won 30.7% against 43.7%.
Bands under 100 matches (3.00 and bigger) carry wide 95% ranges.
View the data: favourite by half-time price: break-even vs won
| Break-even at HT price | Won | 95% range | |
|---|---|---|---|
| HT 1.01-1.19 (432 matches) | 93.6% | 90.7% | ±2.7 |
| HT 1.20-1.49 (247 matches) | 76.2% | 73.7% | ±5.5 |
| HT 1.50-1.99 (169 matches) | 59.7% | 47.3% | ±7.5 |
| HT 2.00-2.99 (101 matches) | 43.7% | 30.7% | ±9 |
| HT 3.00-4.99 (57 matches) | 27.6% | 10.5% | ±8 |
| HT 5.00+ (33 matches) | 12.7% | 0.0% | ±0 |
From 3.00 upwards it gets brutal. Favourites at 3.00-4.99 won 10.5% against 27.6% break-even, and none of the favourites out at 5.00 or bigger won. My reading is that the half-time market leans on the kick-off reputation for too long.
Branch BSecond halves widen the gap rather than closing it
This chart splits the final margin into four branches. It shows what a drifting favourite's second half tends to look like. At 1.50-1.99 the outcomes are fairly balanced: a win by 13 or more in 14.2%, and a defeat by 13 or more in 16.6%.
Move out to 2.00-2.99 and the heavy-defeat branch grows to 29.7%, while big wins shrink to 8.9%. At 3.00-4.99, half the matches end with the favourite beaten by 13 or more, at 50.9%. At 5.00+ that branch reaches 75.8%.
View the data: how a drifting favourite finishes
| Won by 13+ | Won by 1-12 | Lost by 1-12 | Lost by 13+ | |
|---|---|---|---|---|
| HT 1.50-1.99 (169) | 14.2% | 33.1% | 36.1% | 16.6% |
| HT 2.00-2.99 (101) | 8.9% | 21.8% | 39.6% | 29.7% |
| HT 3.00-4.99 (57) | 1.8% | 8.8% | 38.6% | 50.9% |
| HT 5.00+ (33) | 0.0% | 0.0% | 24.2% | 75.8% |
That fits what I see on the field. A side losing the completion battle and defending its own line for long sets tends to tire through the middle period. The second half usually stretches the margin further.
Branch CA short kick-off price buys only a little resilience
Bettors often reason that a heavy pre-game favourite deserves more faith at the break. The grid tests that by crossing the kick-off price band with the half-time price band. Short kick-off favourites at 1.01-1.39 that drifted to 2.00 or bigger still won 28.9%. That is better than the 17.3% for kick-off favourites at 1.70-2.00 in the same spot.
The edge is real but modest. Even the short kick-off group trails its break-even rate, and once a side is clear at under 1.50, the starting price barely matters: 85.6% against 86.2% across the top two bands.
Cells hold 38-348 matches; the smallest is short kick-off favourites out to 2.00+ at half-time.
View the data: kick-off price v half-time price
| HT under 1.50 | HT 1.50-1.99 | HT 2.00+ | |
|---|---|---|---|
| Kick-off 1.01-1.39 | 85.6% | 52.8% | 28.9% |
| Kick-off 1.40-1.69 | 86.2% | 47.9% | 16.7% |
| Kick-off 1.70-2.00 | 75.8% | 39.5% | 17.3% |
Home and away status pulls in the same direction. Home favourites at 2.00+ at half-time won 22.2%, and away favourites won 14.9%. Both sit well under break-even rates of about a third.
Branch DOpposing the drifted favourite shows small historical profits
Here the returns are flat-stake at half-time back prices, after 5% commission. Blanket strategies lose either way. Backing every kick-off favourite again returned −15.7%, and backing every opponent returned −18.7%.
The split by band is where it gets interesting. Backing the opponent of a favourite out to 2.00-2.99 returned +3.1%, and against favourites at 3.00-4.99 it returned +10.0%. Backing favourites at 2.00-2.99 returned −31.4%.
Historical flat-stake returns, not a forecast.
View the data: back the favourite again or the opponent?
| Back the favourite | Back the opponent | |
|---|---|---|
| HT 1.01-1.19 | −3.4% | −33.5% |
| HT 1.20-1.49 | −4.5% | −26.3% |
| HT 1.50-1.99 | −21.9% | +2.3% |
| HT 2.00-2.99 | −31.4% | +3.1% |
| HT 3.00-4.99 | −61.8% | +10.0% |
| HT 5.00+ | −100% | +8.8% |
| All favourites | −15.7% | −18.7% |
My main caveat sits here. The bands from 3.00 upwards hold only a few dozen matches each, so a handful of results could shift those rates sharply. Half-time books are also wide, and the best price may not have been there in size. I treat these figures as a lean, not an edge I would bank on.
If this happens…
A favourite out at 2.00 or bigger at half-time won 19.4% against a 33.6% break-even. Don't back it again just because it was fancied at kick-off.
At 3.00-4.99 the favourite lost by 13 or more in 50.9% of matches. Check the second-half margin and totals markets before thinking only about the result.
Favourites still at 1.01-1.19 won 90.7% against 93.6% break-even, so there is little value either way. Save your attention for the drift bands from 1.50 upwards.
Questions bettors ask
How often do NRL favourites come back after drifting at half-time?
Kick-off favourites that drifted by half-time still won 37.5% overall. Those pushed out to 2.00 or bigger won only 19.4%.
Should I back the underdog when the NRL favourite drifts at half-time?
Historically, backing the opponent of a favourite out to 2.00-2.99 returned +3.1% after commission. Against favourites at 3.00-4.99 it returned +10.0%, but those bands are small samples and returns this close to zero can come from chance.
Does a strong kick-off favourite recover better from a bad first half?
Slightly. Kick-off favourites at 1.01-1.39 that were 2.00 or bigger at half-time won 28.9%, against 17.3% for kick-off favourites at 1.70-2.00 in the same position.
I'm Nathan Caldwell, based in Toronto, and I write the rugby league predictions at cricketscoretips.com — a relentless, high-tempo game where completion rates quietly decide everything.
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