Account sustainability and avoiding promo bans
Bookmakers make money from customers who bet without an edge. As a matched bettor, you have an edge on every promo you take. Bookies know this, and when they identify you as a matched bettor they will remove your access to promotions. This is known as getting gubbed.
Getting gubbed is not a matter of if, it is a matter of when. The goal of account sustainability is to delay it for as long as possible, because every extra week of promo access has real dollar value.
What bookies are looking for
Bookies, especially the large corporate ones, use a combination of algorithms and human review to assess whether a customer is profitable. They are looking for the profile of a mug punter: someone who bets on impulse, backs long shots, builds multis, and does not consistently extract value from promotions.
The signals that flag you as a matched bettor include: betting only when a promo is active, using bonuses at high odds, placing bets on obscure markets or low-liquidity events, withdrawing immediately after a bonus is cleared, and betting very early on markets before liquidity builds.
Universal dos and don'ts
Bet in round numbers. Regular punters stake $10, $20, $50, $100. Irregular amounts like $17.89 or $43.12 suggest you are being very deliberate in your betting.
Bet close to event time. Most punters bet on the day, often within an hour of start. Betting three days out on a minor market stands out.
Withdraw sensibly. Withdrawing your full balance the moment a bonus clears is a strong signal. Keep some funds in your account between promos.
Do not bet on markets with very low Betfair liquidity. The matched amount shown at the top of a Betfair market tells you how much has been traded. It is likely that the amount bet at the bookie is similar Placing a large matched bet on a market with $500 traded will make you very conspicuous.
Do not chase every promo at every bookie at maximum stake. Pace yourself and vary your activity.
Mug betting
A mug bet is a deliberate loss designed to make your account look like that of a regular punter. By placing bets on markets without promos, at odds that are not particularly attractive, you build up a pattern of behaviour that resembles recreational gambling.
Some mug bets can be laid at Betfair or dutched at another bookie to keep the cost minimal. Back and lay the bet using the ATM (for sports) or HorsePower (for racing) and accept the small qualifying loss as a cost of doing business.
Multi also make great mug bets. Bookies love multis. Placing a well-chosen multi using the Odds Comparison Tool to find good value legs keeps the negative EV low while looking exactly like recreational behaviour. Consider cashing out if the first couple of legs win, because that is what a mug would do.
There is no exact mug bet ratio that guarantees safety. Different bookies have different thresholds, and member experiences vary. The By The Book section of the knowledge base covers what to expect from each bookie specifically. The #sustainability Discord channel has ongoing discussion from members about what is and is not working.
Priming new accounts
The most valuable time to build a good account profile is the first few weeks. During this period the bookie is actively trying to categorise you.
For corporate bookies (Sportsbet, TAB, Bet365 etc), two to four weeks of priming is generally considered worthwhile. During that time, 80 to 100% of your bets should be mug bets. Lay them off at Betfair where possible to keep the cost down.
For lower-value rails bookies, extensive priming is less likely to pay off. A quicker approach is usually more appropriate, though some minimal mugging is still advisable.
What happens after a promo ban
A gubbed account is not worthless. Some strategies do not rely on promos at all. The Non-Promo Strategies course covers what is still possible once you have been restricted, including arbitrage on gubbed accounts and value betting.