Forecast and Tricast Betting on Greyhounds: How Combination Bets Work

Predicting the Order, Not Just the Winner

A win bet is the simplest wager in greyhound racing: pick the dog that crosses the line first. It is also the least rewarding relative to the difficulty involved. In a six-runner field, the favourite wins approximately 35.67% of the time in UK graded races. That means the market’s best guess is right roughly once every three races — a strike rate that, at typical odds, makes consistent profit from win bets a difficult proposition.

Forecast and tricast bets offer an alternative. Instead of picking just the winner, you predict the exact finishing order — first and second for a forecast, first, second and third for a tricast. The difficulty increases, but so do the returns. In a sport where six-runner fields and short races produce a relatively contained set of possible outcomes, combination bets sit in a sweet spot: hard enough to generate meaningful payouts, but not so complex that the number of possible permutations makes them a lottery.

This guide explains the mechanics of each bet type, how the payouts are calculated, and when combination bets make strategic sense at a track like Sunderland.

Bet Mechanics: Forecast and Tricast Explained

A straight forecast requires you to name the first and second finishers in exact order. If you select Trap 3 to win and Trap 5 to finish second, that specific combination must occur for the bet to pay. If Trap 5 wins and Trap 3 is second, you lose. The precision required is what generates the higher returns — in a six-runner field, there are thirty possible first-and-second combinations, and you are backing just one of them.

A reverse forecast relaxes the order requirement. You select two dogs, and the bet pays if they finish first and second in either order. A reverse forecast is effectively two straight forecasts combined into a single bet at twice the stake. If your two selections are Trap 3 and Trap 5, you win whether the result is 3-5 or 5-3. The payout is calculated based on the specific order that occurred, and from your doubled stake, you receive the return for the winning combination.

A combination forecast extends the principle further. You select three or more dogs, and the bet covers all possible first-and-second pairings from your selections. With three dogs, that is six possible combinations; with four dogs, twelve. The stake multiplies accordingly, but the coverage broadens your chances of landing the forecast. Combination forecasts are useful when you have identified a group of contenders but cannot confidently separate them into exact positions.

A straight tricast requires you to name the first, second, and third finishers in exact order. In a six-runner field, there are 120 possible permutations of the top three, and you are backing one. The precision is extreme, and the returns reflect it — tricast dividends can be substantial even in races where the result appears unremarkable. A tricast is the greyhound bettor’s high-risk, high-reward play.

A combination tricast covers multiple permutations of your selected dogs in the first three positions. Selecting three dogs in a combination tricast means you are covering all six possible orders of those three finishers. Selecting four dogs covers twenty-four permutations. The stake scales with the number of combinations, but the probability of landing the bet increases correspondingly. The trade-off between coverage and cost is the central decision in combination-tricast strategy.

Payout Calculation: How Returns Are Computed

Forecast and tricast payouts in UK greyhound racing are calculated using the Computer Straight Forecast and the Computer Tricast — standardised formulae that determine the dividend based on the starting prices of the placed dogs.

The CSF — Computer Straight Forecast — takes the starting prices of the first and second finishers and applies a formula that produces a dividend expressed as a return per unit staked. The formula is not a simple multiplication of the two prices; it includes adjustments that reflect the probability of the specific combination occurring. A forecast involving two short-priced favourites will produce a smaller dividend than one involving two outsiders, because the probability of two favourites finishing first and second is higher than two long shots doing the same.

The TC — Tricast Computer — works on the same principle but extends it to three places. The dividend incorporates the starting prices of the first, second, and third finishers, and the adjustments reflect the combinatorial probability of that specific three-horse order. Tricast dividends are inherently larger than forecast dividends because the number of possible outcomes is four times greater — 120 permutations versus 30 for the top two.

In practice, the dividends vary enormously. A forecast involving two well-backed dogs might return £5 to £15 per £1 staked. A forecast involving a medium-priced winner and an outsider in second might return £30 to £80. Tricasts amplify these ranges further: a result involving three favourites might return £20 to £40, while a result with an outsider in the mix can push the tricast dividend into three figures. The variability is what makes combination bets attractive to bettors who have strong opinions about the likely order of finish but find win-only betting insufficiently rewarding.

Strategy Application: When to Forecast vs Tricast at Sunderland

At Sunderland, the track’s balanced trap distribution — with each box winning at approximately 17% — has a specific implication for combination-bet strategy. At tracks with pronounced trap biases, the likely winner often comes from a predictable position, and the forecast or tricast becomes a question of identifying which dogs fill the minor places around a structurally favoured runner. At Sunderland, no trap is structurally favoured. The winner could come from anywhere in the field, which means the forecast and tricast are more genuinely open contests.

That openness cuts both ways. On one hand, it makes combination bets harder — there is no inside-trap shortcut to narrow down the likely winner. On the other hand, it means the CSF and TC dividends at Sunderland tend to be slightly more generous than at biased tracks, because the results are less predictable and the starting prices reflect a more evenly distributed market. When the market cannot lean on trap bias to identify the likely winner, the forecast and tricast dividends increase to compensate for the uncertainty.

The practical question is when to use a forecast versus a tricast. A forecast is appropriate when you have a strong view on two dogs — typically a confident pick for the winner and a second selection that you expect to place. If your analysis of the form, calculated times, and sectional data points clearly to two dogs as the class of the field, a straight or reverse forecast captures that opinion efficiently. The tricast is appropriate when you can identify three dogs that are likely to fill the frame but cannot separate them with confidence. In a competitive A-grade race at Sunderland, where the margins between the top three are measured in fractions of a second, a combination tricast covering your three best is a more realistic approach than a straight tricast that demands you also predict the exact order.

One final principle: combination bets reward specificity. The more precisely you can narrow the field — identifying which dogs will be competitive and, crucially, which will not — the more efficiently you can structure your bet. At Sunderland, the data to support that specificity is plentiful: four meetings per week, consistent form profiles, balanced trap stats, and a reliable stream of sectional data. The information is there. The combination bet is the vehicle for converting it into returns that a simple win bet cannot match.