System Bet Maths: Combinations, Unit Stakes and a 2/3 Example

A system bet is a set of smaller parlays built from one list of picks. Choose a size, such as 2 from 3, and the slip creates every combination of that size, each with an equal share of the stake. Lose one pick and the combinations without it still pay, which is the whole point. The sportsbook FAQ at ph.747.live describes four slip types, and the system sits between the parlay and the chain.

Four slip types compared

All four appear in the lobby’s own FAQ, as read on 8 November 2026:

The express slip is the all-or-nothing one; the parlay page on combined odds shows how fast its chance shrinks. Combinations grow quickly with the number of picks:

Total outlay is the stake per combination times the count, so ₱50 on each line of a 2/5 system costs ₱500.

The FAQ’s own example is a 2/5 system: at least 2 of the 5 events must win for the bet to win. Express and system slips share a total-odds cap of 1000, and the minimum stake per combination depends on the system chosen.

System bet calculation: a 2/3 worked through

Plain arithmetic, not quoted prices. Three picks: A at 2.10, B at 1.80, C at 2.50. Stake ₱300 on a 2/3 system, so ₱100 on each double.

1. All three win: ₱378 + ₱525 + ₱450 = ₱1,353 back on ₱300.
2. C loses: only A + B pays, ₱378, a ₱78 profit.
3. A loses: only B + C pays, ₱450.
4. Two picks lose: nothing pays; the ₱300 is gone.

The same three picks as one parlay at 9.45 would return ₱2,835 on ₱300, but only if all three land. The system trades that top return for a payout with one miss. Convert each price to a chance first; the betting odds page with implied chance does the conversion.

Chain bets: singles in a queue

The FAQ’s chain bet places a unit stake on the first pick as a single. Any return above the unit goes to a chain account, and the unit rides on to the next pick. A loss takes the next unit from the chain account; if too little is left, whatever remains is staked. A ₱100 unit across three picks, as plain arithmetic:

1. Pick 1 at 2.00 wins: ₱200 back, ₱100 rides on, ₱100 banked.
2. Pick 2 at 1.50 loses: the ₱100 riding is gone; ₱100 leaves the bank for pick 3.
3. Pick 3 at 3.00 wins: ₱300 back, the chain’s final return.

The sports betting map of slips and sports lists the rest. Systems and chains are built from a signed-in account at the lobby: see how to log in at ph.747.live and the register form there. A Join 76JL button is a sponsored route to 76JL, another casino, and none of the slip rules quoted here come from it.