Round Robin Calculator

This calculator works out the returns on a Round Robin: a Trixie plus three up-and-down pairs, ten bets built from three moneyline picks. Enter your odds and unit stake to see how each of the ten bets settles, win or lose.

What Is a Round Robin?

A Round Robin is a Trixie with three up-and-down pairs added on top. Pick three teams to win on the moneyline, and the calculator builds ten bets from those picks: three doubles, one treble, and three up-and-down pairs, each pair worth two bets — the Trixie’s four bets plus six more from the pairs.

The doubles and treble work as they do in a Trixie: each double needs both picks to win, and the treble needs all three. What makes a Round Robin different is the three up-and-down pairs. Each pair takes two of the three picks and stakes on them in both directions — one bet opens on the first pick and rolls its return onto the second if it wins, and the other does the reverse. Because a pair is two bets running in opposite directions, it does not need both picks to win to pay something back. That separates a Round Robin from a plain Trixie: a Trixie returns nothing unless at least two picks win, but a Round Robin’s pairs can still return money with only one winner, because the winning pick’s return covers part of the stake riding through it.

Enter the odds for all three picks and a unit stake, and the calculator settles all ten bets and totals the return.

How a Round Robin Is Calculated

The calculator builds all ten bets from your three picks. A Trixie makes four of them: three doubles (each pairing two of the three picks) and one treble (all three picks combined) — 3 doubles + 1 treble = 4 bets. The other six come from three up-and-down pairs, one pair for each two-pick combination, each pair counting as two bets, so 3 pairs x 2 bets = 6. Add the Trixie’s four to the pairs’ six and the total is 10 bets, all funded from the same unit stake.

Each up-and-down pair works in two directions on the same two picks. Take the pair covering the Cardinals (-143, decimal 1.70) and the Reds (+100, decimal 2.00). The first bet stakes your unit on the Cardinals; if the Cardinals win, that return is not paid out to you — it is placed straight back on the Reds as an “any to come” stake the same size as the original unit, with anything left over kept aside. The second bet does the reverse: it stakes on the Reds first, and if the Reds win, a same-sized stake is placed on the Cardinals instead. Every double, the treble, and every pair leg is settled using the decimal value of the odds you entered — for the Brewers, that’s +140 shown as 2.40.

What the Calculator Shows You

Enter the odds for all three picks, mark each pick as a win or a loss, and set your unit stake, and the calculator returns a full breakdown of the Round Robin.

It shows the three doubles and the treble separately, so you can see which combinations landed and what each paid. It shows the three up-and-down pairs separately too, broken into their two legs apiece, so you can follow how much of each pair’s stake carried on to the second pick and how much was returned before that onward bet was placed. Alongside the bet-by-bet breakdown, it totals the ten bets into a return figure and a profit figure, measured against your total outlay, so you can see what the whole Round Robin paid back.

Worked Example

Take a Round Robin on three moneyline picks at a $1.00 unit stake: the Cardinals to win at -143 (1.70), the Reds to win at +100 (2.00), and the Brewers to win at +140 (2.40).

The calculator first builds the Trixie side of the bet: three doubles (Cardinals/Reds, Cardinals/Brewers, Reds/Brewers) and one treble (all three), four bets in total, each at the $1.00 unit stake. Then it builds the three up-and-down pairs — Cardinals/Reds, Cardinals/Brewers, and Reds/Brewers — each pair worth two bets, six bets in total. Four Trixie bets plus six pair bets makes the full ten bets, and at $1.00 a bet, the total outlay is $10.00.

If all three picks win — the Cardinals, the Reds, and the Brewers all come in — every double lands, the treble lands, and both legs of every up-and-down pair land in sequence, from the opening stake through to the “any to come” stake on the other pick in the pair. Add up the return from all ten bets and the Round Robin pays back $38.84 on the $10.00 outlay, a profit of $28.84.

That $38.84 is the return only when every one of the three picks wins. Fewer winners changes which bets land: the doubles and treble that include a losing pick return nothing, but the up-and-down pairs can still pay something back with just one winning pick, because the opening leg of a pair returns money before its onward stake is placed. The calculator settles every one of the ten bets against however many picks you mark as winners, and totals the results into the return and profit figures for the Round Robin as a whole.

What the 10 Bets in a Round Robin Are Made Of

A Round Robin’s ten bets break down into two groups. The Trixie contributes three doubles and one treble, built from combining the same three picks in different groupings. The up-and-down pairs contribute six bets, two for every pair of picks, since each pair runs in both directions. Together they add up to the ten bets a Round Robin places from three picks.

How One Up-and-Down Pair Settles

Taking just the Cardinals/Reds pair out of the full Round Robin, at 1.70 and 2.00 with $1.00 a bet, shows how a pair settles on its own. The pair costs $2.00 total. If both the Cardinals and the Reds win, both legs land in full and the pair returns $5.40. If only the Cardinals win, the leg that opens on the Cardinals returns something even though its onward stake on the Reds then loses, paying back $0.70. If only the Reds win, the reverse leg pays back $1.00. If neither wins, the pair returns $0.00.

Why an Up-and-Down Pair Can Pay With Only One Winner

An up-and-down pair is two bets, not one, and that is why it behaves so differently from a double. The first bet stakes your unit on the Cardinals. If the Cardinals win, the return is not paid out to you as cash — it is automatically placed as a same-sized “any to come” stake on the Reds. Whatever is left over from that return after the stake is funded stays with you regardless of what the Reds then do. The second bet does the exact reverse: it opens on the Reds, and if the Reds win, a same-sized stake rolls onto the Cardinals, with the leftover staying with you either way.

That structure is why a pair can pay out when only one of its two picks wins. The opening leg has already returned more than the pair cost to place, and the leftover from that leg is yours even though the onward bet on the second pick then loses. It also explains why a Round Robin is harder to follow at a glance than a plain Trixie: each pair is really two small sequences running in opposite directions, not one bet with a single outcome, and only the order of the two legs tells them apart.

When a Round Robin Makes Sense

A Round Robin makes the most sense when you like three picks but aren’t confident enough in any single one to rely on a straight moneyline bet, and you want a structure that keeps paying even if one of the three lets you down. Because six of its ten bets are up-and-down pairs rather than combinations that need multiple picks to land together, a Round Robin can return money where a Trixie returns nothing at all — most notably when only one of your three picks wins. That safety net comes at a cost: ten bets at a given unit stake add up to ten times that stake, more than double what the same stake costs as a Trixie, so the extra coverage has to be weighed against the larger outlay.

It suits picks you would happily back individually but where the combined price across doubles and a treble is what makes the bet worth placing — the pairs soften the outcome if the combinations don’t all come in, not to be the main source of profit. If your goal is the biggest payout from three picks landing together, a straight treble puts more of your stake behind the combinations instead of lower-yield insurance. If you want broader coverage without the pairs a Round Robin uses, a Patent adds a single bet on each pick on top of the Trixie instead.

Common Mistakes

A common mistake is treating an up-and-down pair as if it settles like a double, when it settles in sequence, one leg funding the next, rather than needing both picks to land together. Another is reading the unit stake as the total cost — a Round Robin is ten times the unit stake, not one times it. It is also easy to assume a Round Robin costs the same as a Trixie built from the same picks, when the pairs more than double the outlay. Finally, remember that a losing first leg in any pair stops the onward bet before it is placed.

Round Robin vs Trixie and Patent

All three of these bets can be built from the same three picks, but they cover them differently. A Trixie sticks to combinations only, four bets in total. A Patent adds a single bet on each pick to the same combinations, seven bets in total. A Round Robin replaces those singles with three up-and-down pairs, bringing the total to ten bets.