What Is a Tricast Bet?
A Tricast bet requires you to predict which horses (or greyhounds) will finish first, second, and third in a race — in the correct order. All three selections must land in their exact positions for the bet to win.
It is one of the most challenging bets available in UK racing, and correspondingly one of the highest-paying. Because three runners must finish in a precise sequence, Tricast returns are calculated differently from most other bet types — and you will not know the exact payout until after the race has finished.
Tricasts are most commonly available on:
- Horse racing — UK and Irish flat and jump racing, typically in handicap races with eight or more runners
- Greyhound racing — standard six-runner grids and larger fields
- Occasionally: major international football tournaments (FIFA World Cup podium finish markets at some bookmakers)
How a Tricast Bet Works
You select three runners and assign each a finishing position: first, second, and third. The bet covers a single race — you cannot combine selections across different races in a Tricast.
Example:
| Position | Selection | SP |
|---|---|---|
| 1st | Twelfth Night | 7/1 |
| 2nd | Rayat | 7/2 |
| 3rd | Origintrail | 7/1 |
If the race finishes in exactly that order, your Tricast wins. If any of the three finish in a different position — or fail to finish at all — the bet loses.
Stake Structure
Unlike accumulator bets or named multiple bets (Trixie, Patent etc.) where your stake is multiplied across bets, a Straight Tricast requires only a single stake for the whole bet. A £5 Straight Tricast costs £5. The complexity — and the high potential return — comes from the odds, not a multiplied stake.
The Three Types of Tricast Bet
1. Straight Tricast
The standard version. You nominate which of your three selections finishes first, second, and third. All three must land in the precise order you specified.
One bet. One stake. If the order is exactly right, you win. If any selection finishes out of position — even if all three finish in the top three but in a different order — you lose.
Best for: bettors with strong conviction about a specific race order, or where the race structure points clearly toward a predictable 1-2-3.
2. Combination Tricast
A Combination Tricast covers all possible finishing orders of your three selections. Instead of specifying who finishes first, second, and third, you pick three runners to fill the top three positions in any order. If all three finish in the top three — regardless of the sequence — you win.
The flexibility comes at a cost: because there are six possible orderings of three runners (3 × 2 × 1 = 6), a Combination Tricast is six bets and your stake is multiplied by six.
Stake impact:
| Stake Per Line | Total Stake (Combination Tricast) |
|---|---|
| £1 | £6 |
| £2 | £12 |
| £5 | £30 |
| £10 | £60 |
Combination Tricast odds are typically fixed odds displayed on the bet slip, unlike the Straight Tricast which uses Starting Price. The six combinations are often shown individually on the bet slip with their expected returns, which lets you see the range of possible payouts before placing.
Best for: races where you are confident about which three runners will fill the top three, but less certain about the exact finishing order.
3. Trifecta
The Trifecta is mechanically similar to the Tricast — predict the first three finishers in order — but is driven by the Tote pool rather than bookmaker odds.
All stakes placed on the Trifecta market across the Tote’s network go into a single prize pool. The Tote deducts its margin (25% in the UK) and distributes the remainder proportionately among winning tickets based on stake.
Key difference from Tricast:
| Tricast | Trifecta | |
|---|---|---|
| Odds set by | Bookmaker algorithm (SP-based) | Tote pool (all stakes combined) |
| Margin | Bookmaker-determined, varies | 25% Tote deduction |
| Payout known before race? | No (SP-based straight tricast) | No |
| Rollover if no winner? | No — void | Yes — carries to next qualifying event |
| Fixed odds available? | On combination tricast at some bookmakers | Never |
The rollover feature is significant: if no ticket correctly predicts the first three finishers in order, the pool carries forward to the next qualifying Trifecta event, which can produce very large prize pools at major meetings. This is worth monitoring at festivals like Cheltenham or the Grand National meeting, where a carried-forward Trifecta pool can produce exceptional returns for winning tickets.
Statistical note: A study of over 1,000 races (Geegeez.co.uk, 2023 data) found that average Trifecta payouts were higher than average Tricast payouts across the sample. The 25% Tote deduction sounds high in absolute terms, but because the pool contains a wider range of stakes from casual bettors who have not bet selectively, the dividend can outperform the bookmaker’s SP-calculated Tricast on the same race. This is not guaranteed — payouts vary significantly race to race — but it is worth checking both prices at major meetings before choosing which route to take.
How Tricast Odds Are Calculated
The Straight Tricast uses Starting Price, which means the odds — and therefore your return — are not confirmed until after the race has finished. This is the aspect of Tricast betting that catches most new bettors off guard.
The reason is mathematical necessity. To calculate a Tricast dividend, the bookmaker must estimate not just each horse’s probability of winning, but each horse’s probability of finishing second given who has finished first, and each horse’s probability of finishing third given the first two finishers. These conditional probabilities are calculated by algorithm using the SP of every runner in the race — which is why the bet is sometimes referred to as a Computer Tricast.
You cannot calculate your expected return in advance on a Straight Tricast. You place the bet, watch the race, and the dividend is confirmed once the SPs are set.
What you can do:
Use an approximate manual estimate by multiplying the three selections’ win odds together as a rough guide: 7/1 × 7/2 × 7/1 = 8.0 × 4.5 × 8.0 ≈ 288 — this overstates the actual return because it does not account for the conditional finishing probabilities, but it gives an order-of-magnitude sense of the scale of the dividend.
For a £1 Straight Tricast where the actual Computer Tricast dividend comes out at 187.64, your return is simply:
£1 × 187.64 = £187.64
Multiply by your stake for any other amount.
Availability: When Can You Place a Tricast?
Tricast bets are not available on every race. The standard availability conditions:
Horse racing: Handicap races with eight or more declared runners are the standard qualifying condition for most bookmakers. Non-handicap races (conditions races, listed races, Group races) may also offer Tricasts at some operators depending on field size.
Greyhound racing: Generally available in standard six-dog fields and above.
Location in the betting interface: Most bookmakers place the Tricast option separately from the standard win/each way market — look for a “Forecast/Tricast” tab or section on the racecard. It will not appear automatically alongside the standard markets.
Tricast vs. Other Exacta-Style Bets
| Bet | Positions Required | Order Required | Sports |
|---|---|---|---|
| Forecast | 1st and 2nd | Yes (Straight) or No (Combination) | Horse racing, greyhounds |
| Reversed Forecast | 1st and 2nd | No — covers both orders | Horse racing, greyhounds |
| Straight Tricast | 1st, 2nd, 3rd | Yes — exact order | Horse racing, greyhounds |
| Combination Tricast | 1st, 2nd, 3rd | No — any order | Horse racing, greyhounds |
| Trifecta | 1st, 2nd, 3rd | Yes — exact order | Horse racing (Tote) |
Practical Analysis: Selecting Tricast Runners
Because the margin for error is small — all three selections must land in precise positions — analytical rigour matters more in Tricast betting than in simpler markets. The following factors are the most useful inputs:
Form and class: Each selection’s recent form relative to the field. The first and second selections should be the two horses you rate most highly for the class of race. The third selection should be a horse you expect to outrun its odds relative to the remainder of the field.
Market confidence: Strong, sustained market moves toward a selection in the hours before the race indicate professional money coming in. A horse that steams from 6/1 to 3/1 before the off is likely better fancied by informed bettors than its earlier price suggested.
Jockey and trainer: In races with evenly matched horses, jockey booking can be the decisive factor. A top-ten conditional jockey booking on a trainer’s less fancied runner is worth noting. Trainer strike rates at specific tracks are also relevant — some trainers produce disproportionate results at particular courses.
Going: Certain horses perform materially better or worse on specific going conditions. In races run on going different from recent form runs, the standard form figures can be misleading. Check the going preference of each selection.
Race dynamics: Long-distance handicaps tend to produce more predictable 1-2-3 finishes among the market leaders than short-distance sprints, where pace, draw, and luck in running create more unpredictability. Tricast bets on shorter races with large fields carry more variance.
Combination Tricast: Managing the Stake
The six-bet structure of a Combination Tricast means stakes escalate quickly. Before placing:
Calculate your total outlay (unit stake × 6) and confirm it is within your session budget. A £5-per-line Combination Tricast costs £30 total — the same outlay as six separate £5 bets.
The return on a winning Combination Tricast will be lower than a Straight Tricast on the same race, because the Combination covers easier-to-hit outcomes. But the probability of winning is higher.
One reasonable approach for races where you are confident about your three selections but uncertain about the order: place a small Straight Tricast on your most likely order, and a minimal Combination Tricast as a backup. The two bets together cost your straight stake plus 6× your combination unit — keep the combination unit very small.
Common Mistakes
Placing Tricasts on races with fewer than eight runners. Smaller fields reduce the dividend significantly because fewer possible combinations exist. The mathematical relationship between field size and Tricast dividend is direct — larger fields produce higher Computer Tricast dividends on winning tickets.
Expecting to know the return before the race. Straight Tricasts use SP. The dividend is confirmed after the off. If certainty about the return is important to you, use a Combination Tricast (fixed odds displayed on slip) or accept the uncertainty as part of the bet.
Overusing Combination Tricasts. Six times the stake for each selection set adds up quickly across a card. Reserve Combination Tricasts for races where you have a genuinely strong view on the three runners likely to dominate — not as a way of covering all your selections in every race.
Treating the Tricast as a casual “long shot” bet. The highest-returning Tricasts come from races where analysis has identified a clear 1-2-3 that the market has underestimated. Randomly backing three horses with long odds in the hope of a large dividend is a route to consistent losses.
Frequently Asked Questions
What is the minimum field size for a Tricast bet?
For most UK bookmakers, Tricast bets are available in handicap races with eight or more declared runners. Some operators apply different thresholds. Check the specific bookmaker’s racing rules before placing.
Can I place a Tricast on non-racing sports?
Occasionally. Some bookmakers offer Tricast-style markets on major football tournaments (predicting which teams finish 1st, 2nd, 3rd in a group, or the top three in a tournament). These are not standard fixtures but appear around major events. Check your bookmaker’s specials section.
Why don’t I see my potential return before placing a Straight Tricast?
Straight Tricast returns are calculated using Starting Price after the race. The Computer Tricast algorithm cannot determine the exact dividend until every runner’s SP is set at the off. This is a fundamental feature of the bet type, not an omission by the bookmaker.
Is the Trifecta always better value than the Tricast?
Not always. The Tote’s 25% deduction is a fixed cost. The bookmaker’s Computer Tricast margin varies by race and field. Historical data suggests Trifecta payouts have been higher on average, but individual races can go either way. Check both markets at major meetings and take the better price.
Can I place a Tricast each way?
No. Tricasts cover the top three finishing positions — an each way element (which would pay on any of the top three positions individually) does not apply to this bet type.
Sources: Racing Post; Geegeez.co.uk statistical analysis (2023 sample); individual bookmaker terms and conditions. All information correct as of March 2026.