Multis Are Everywhere — But Are They Worth It?
Walk into any TAB in Australia on a Saturday morning and you'll see it: punters five-deep at the terminal, building massive multis across the AFL and NRL card. The dream is simple — $10 into $10,000. It feels like smart gambling. It almost never is.
Let's look at the actual maths.
The Maths of a Multi
Suppose you pick four AFL games and each selection has a true win probability of 65% — a genuinely good edge. You back all four in a multi.
Probability of winning: 0.65 × 0.65 × 0.65 × 0.65 = 17.9%
That means you'll lose this multi roughly 82% of the time. At standard Australian odds, the combined multi payout would need to be above $5.59 to have positive expected value. In practice, the bookmaker's margin on each leg compounds — so you're almost certainly getting less than that.
The multi feels exciting. The expected value is negative. Every time.
Why Bookmakers Love Promoting Multis
Sportsbet, TAB and Pointsbet heavily promote multi betting — same-game multis, super multis, Pick 6 jackpots. They do this because multis generate significantly higher margin for the bookmaker than single bets.
When you bet a single at $1.90, the implied margin is roughly 5%. When you bet a 5-leg multi, that 5% margin compounds across every leg. The bookmaker's take on a 5-leg multi can exceed 25% of stake. That's why they advertise it.
When Does a Multi Make Sense?
Almost never, from a pure expected value perspective. The only scenario where a multi isn't automatically worse than singles is if every leg is genuinely positive expected value AND the combined odds represent fair or better pricing — which essentially never happens with standard Australian bookmaker products.
There's one exception: if you have an extremely high-confidence play (85%+) and want to combine it with a second similarly high-confidence selection for an enhanced return. Even then, the maths rarely favour it over separate singles.
What to Do Instead
Bet your AFL and NRL tips as singles, sized according to confidence:
- VALUE tip (65–74% conf): 1 unit
- STRONG tip (75–84% conf): 2 units
- BANKER tip (85%+ conf): 3 units
Over a season of 100+ qualifying tips, flat staking singles at 65%+ model confidence will outperform any multi strategy. The variance is lower, the edge is cleaner, and you never lose four good selections because of one bad leg.
Getting the Right Singles Tips
Our Members get the full AFL and NRL card every round — each tip as a standalone single with a recommended stake level. No multis, no parlays, no complexity. Just clean, data-driven singles delivered to your Telegram at 7am AEST every game day.
AFL, NRL, NBA, EPL, LaLiga, Bundesliga and Tennis. $29/month, cancel anytime.
Free tip daily at t.me/ThePuntersEdgeAU.
18+ only. Please gamble responsibly. Gambling Help Online: 1800 858 858.