TG
System Bet Algorithm updated: Feb 2026

Lucky 15 Calculator 2026

Calculate potential returns for your Lucky 15 bets with bonus tracking

EV
Developed by Evgeniy Volkov

Your 4 Selections

Total Stake: $15.00
1
2
3
4

Bookmaker Bonuses

Lucky 15 Bet Structure

15 bets: 4 singles + 6 doubles + 4 trebles + 1 four-fold

Returns from just 1 winner (includes singles)

Results Summary

Total Stake
$15.00
15 bets x $1.00
Total Return
$125.00
Profit/Loss
+$110.00
ROI
+733.3%
15 Won0 Lost

Singles (4 bets)

Selection 1 $2.00
Selection 2 $2.50
Selection 3 $3.00
Selection 4 $2.00

Doubles (6 bets)

Selection 1 + Selection 2 $5.00
Selection 1 + Selection 3 $6.00
Selection 1 + Selection 4 $4.00
Selection 2 + Selection 3 $7.50
Selection 2 + Selection 4 $5.00
Selection 3 + Selection 4 $6.00

Trebles (4 bets)

Selection 1 + Selection 2 + Selection 3 $15.00
Selection 1 + Selection 2 + Selection 4 $10.00
Selection 1 + Selection 3 + Selection 4 $12.00
Selection 2 + Selection 3 + Selection 4 $15.00

Four-fold Accumulator (1 bet)

Selection 1 + Selection 2 + Selection 3 + Selection 4 $30.00

Lucky 15 Formulas

The mathematics behind Lucky 15 calculations

Singles Return

Stake × Odds

$1 × 2.50 = $2.50

Doubles Return

Stake × Odds₁ × Odds₂

$1 × 2.00 × 2.50 = $5.00

Trebles Return

Stake × Odds₁ × Odds₂ × Odds₃

$1 × 2.00 × 2.50 × 3.00 = $15.00

Four-fold Return

Stake × Odds₁ × Odds₂ × Odds₃ × Odds₄

$1 × 2.00 × 2.50 × 3.00 × 2.00 = $30.00

Understanding Lucky 15 Bets

1️⃣

4 Singles

Four individual bets, one on each selection. This is what makes Lucky 15 different from Yankee - you get a return with just 1 winner.

A, B, C, D (separate bets)
2️⃣

6 Doubles

All possible combinations of 2 selections from your 4. Each double requires both selections to win.

AB, AC, AD, BC, BD, CD
3️⃣

4 Trebles

All combinations of 3 selections. Each treble requires all 3 selections to win.

ABC, ABD, ACD, BCD
4️⃣

1 Four-fold

One accumulator with all 4 selections. All must win for this bet to pay out, but it offers the highest potential return.

ABCD

Lucky 15 vs Yankee Comparison

Choose the right system bet for your strategy

FeatureLucky 15Yankee
Total Bets1511
Singles IncludedYes (4)No
Min Winners for Return12
Cost ($1 unit)$15$11
Bonus AvailableUsually YesRare

Pro Tips

🎁

Use Bookmaker Bonuses

Always place Lucky 15 bets with bookmakers offering bonuses. The 10% all-winner bonus and double-odds consolation significantly improve expected value.

🏇

Consider Outsiders

Lucky 15 is ideal for backing higher-priced selections. The singles provide protection if only one wins, while all 4 winning at bigger prices delivers huge returns.

⚖️

Compare to Yankee

If you're confident 2+ selections will win, a Yankee at 11 units is cheaper. Use Lucky 15 when you want protection from just 1 winner scenarios.

FAQ

Frequently Asked Questions

A Lucky 15 is a full coverage bet on 4 selections consisting of 15 bets: 4 singles, 6 doubles, 4 trebles, and 1 four-fold accumulator. You get a return with just 1 winner because singles are included.
Most bookmakers offer bonuses: typically 10% extra if all 4 selections win, and double odds on the single if only 1 selection wins. These bonuses add significant value to Lucky 15 bets.
Lucky 15 includes singles so you get a return with just 1 winner, but costs 15 units vs Yankee's 11. If you're less confident, Lucky 15 offers more protection. If confident in multiple winners, Yankee is cheaper.
Each of the 15 bets is calculated separately. Singles pay odds × stake. Doubles multiply 2 odds × stake. Trebles multiply 3 odds. The fourfold multiplies all 4 odds. Total payout is sum of all winning bets.
It's called Lucky 15 because it consists of exactly 15 bets. The 'lucky' refers to the favorable bonus structure that most bookmakers offer, making it more attractive than placing the bets separately.
If a selection is void (non-runner in horse racing, cancelled match), bets involving that selection are recalculated. Singles become void, doubles become singles, trebles become doubles, and the four-fold becomes a treble.
A Lucky 15 costs 15 times your unit stake. For example, with a $1 unit stake, the total cost is $15. With a $10 unit stake, the total cost is $150.

Complete Guide to Lucky 15 Betting

A Lucky 15 bet covers all possible combinations from 4 selections: 4 singles, 6 doubles, 4 trebles, and 1 four-fold accumulator - totaling 15 bets. The key advantage over a Yankee is that you get a return with just one winning selection, plus bookmaker bonuses can significantly boost your winnings.

Our Lucky 15 calculator shows potential returns with and without common bookmaker bonuses. Apply the 10% all-winners bonus or double odds for single winner consolation. See exactly how each bet contributes to your total return as results come in.

Lucky 15 bets are especially popular in horse racing where backing 4 outsiders can lead to massive returns if they all win. The bonus structure means even finding one winner gives you something back, while all 4 winning pays out generously with the 10% bonus on top.

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Evgeniy Volkov

Evgeny Volkov

Verified Expert
Math & Software Engineer, iGaming Expert

Over 10 years developing software for the gaming industry. Advanced degree in Mathematics. Specializing in probability analysis, RNG algorithms, and mathematical gambling models.

Experience10+
SpecializationiGaming
Status
Active