3/5 System Bet Explained in Simple Terms
Lina Almans
Upd 10 days ago
Comment 0
What is a 3/5 System Bet?
A 3/5 system bet is a bet where you select 5 events, and you win if any 3 of them are correct.
Instead of one big accumulator, the stake is split into multiple 3-leg parlays.
Very simple example 👇
You choose 5 matches: A, B, C, D, and E.
A 3/5 system automatically creates all possible 3-match combinations:
- A + B + C
- A + B + D
- A + B + E
- A + C + D
- A + C + E
- A + D + E
- B + C + D
- B + C + E
- B + D + E
- C + D + E
👉 That’s 10 separate bets in total.
A 3/5 system bet basically means: “I don’t know exactly which three will win, but I believe at least three of the five will.”
| Selections Won | Outcome |
| 5 out of 5 | All 10 parlays win — maximum payout |
| 4 out of 5 | 4 parlays win — usually a profit |
| 3 out of 5 | 1 parlay wins — partial return |
| 0–2 out of 5 | The bet loses |
3/5 System Bet in Action
Scenario 1: Big Win
In this scenario, all five selections come from different basketball matches, and every pick wins, resulting in all 10 possible trebles winning.
The selections are:
- Lakers to win vs Warriors (odds 1.8)
- Nets to win vs Heat (odds 2.2)
- Bucks to win vs Celtics (odds 1.6)
- Suns to win vs Clippers (odds 2.0)
- Jazz to win vs Nuggets (odds 1.9)
| # | Treble | Odds | Result |
| 1 | Lakers, Nets, Bucks | 1.8 x 2.2 x 1.6 = 6.336 | Won |
| 2 | Lakers, Nets, Suns | 1.8 x 2.2 x 2.0 = 7.92 | Won |
| 3 | Lakers, Nets, Jazz | 1.8 x 2.2 x 1.9 = 7.524 | Won |
| 4 | Lakers, Bucks, Suns | 1.8 x 1.6 x 2.0 = 5.76 | Won |
| 5 | Lakers, Bucks, Jazz | 1.8 x 1.6 x 1.9 = 5.472 | Won |
| 6 | Lakers, Suns, Jazz | 1.8 x 2.0 x 1.9 = 6.84 | Won |
| 7 | Nets, Bucks, Suns | 2.2 x 1.6 x 2.0 = 7.04 | Won |
| 8 | Nets, Bucks, Jazz | 2.2 x 1.6 x 1.9 = 6.688 | Won |
| 9 | Nets, Suns, Jazz | 2.2 x 2.0 x 1.9 = 8.36 | Won |
| 10 | Bucks, Suns, Jazz | 1.6 x 2.0 x 1.9 = 6.08 | Won |
If you bet $100 on the system, each treble gets $10 of your stake ($100/10=$10). To calculate your return, use this formula:
Return = Stake x (1/10) x (Sum of odds of all trebles)
This would give you a $680.2 return and a profit of $580.2 ($680.2-$100).
Scenario 2: Small Loss
The five selections are from different basketball matches:
- Lakers to win vs Warriors (odds 1.8)
- Nets to win vs Heat (odds 2.2)
- Bucks to win vs Celtics (odds 1.6)
- Suns to win vs Clippers (odds 2.0)
- Jazz to win vs Nuggets (odds 1.9)
In this scenario, the Nets and Jazz selections lose, while the other three picks win.
| # | Treble | Odds | Result |
| 1 | Lakers, Nets, Bucks | 1.8 x 2.2 x 1.6 = 6.336 | Lost |
| 2 | Lakers, Nets, Suns | 1.8 x 2.2 x 2.0 = 7.92 | Lost |
| 3 | Lakers, Nets, Jazz | 1.8 x 2.2 x 1.9 = 7.524 | Lost |
| 4 | Lakers, Bucks, Suns | 1.8 x 1.6 x 2.0 = 5.76 | Won |
| 5 | Lakers, Bucks, Jazz | 1.8 x 1.6 x 1.9 = 5.472 | Lost |
| 6 | Lakers, Suns, Jazz | 1.8 x 2.0 x 1.9 = 6.84 | Lost |
| 7 | Nets, Bucks, Suns | 2.2 x 1.6 x 2.0 = 7.04 | Lost |
| 8 | Nets, Bucks, Jazz | 2.2 x 1.6 x 1.9 = 6.688 | Lost |
| 9 | Nets, Suns, Jazz | 2.2 x 2.0 x 1.9 = 8.36 | Lost |
| 10 | Bucks, Suns, Jazz | 1.6 x 2.0 x 1.9 = 6.08 | Lost |
The table shows that you had bad luck with your system bet. Only the Lakers, Bucks, and Suns won their games. Nine trebles lost and only one treble won.
So, we only get $57.6 as a return: ($10 x 5.76), which is a loss of $42.4 ($100-$57.6).
The formula is simple, but the calculation is a nightmare. Showing the full calculation here would be overkill.
There’s an easier way to calculate the payout. Just use System Bet Calculator!
Pros and Cons of a 3/5 System Bet
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