Most poker leaks aren’t about not knowing strategy — they’re behavioural. The following habits consistently cost players money across all stake levels, and most of them have nothing to do with hand reading or GTO theory.
Playing Too Many Tables at Once
Adding tables feels like increasing volume, but past a certain point it increases mistakes faster than it increases hands. The breakeven point varies by player, but a useful rule of thumb: if you’re timing out on more than 2–3% of decisions, you’re running more tables than your decision-making can handle. Quality of decision degrades before you notice it, because rushed decisions feel the same as considered ones in the moment.
For GGPoker specifically, the mobile client caps at 6 tables. Most players find 2–4 tables optimal for actually improving; 6 is for pure volume grinding once your decisions are already automated.
Ignoring Position
Position is the most consistent edge in poker, and playing out of position profitably requires a much stronger hand range than playing in position. The bad habit isn’t not knowing this — it’s calling raises from the blinds or UTG with hands that are marginal in position and clear folds out of position. Hands like KJo, QTo, and suited connectors below JTs are profitable in late position, losing in early position. Play fewer hands from early seats.
Chasing Losses Within a Session
Every professional player has a defined stop-loss — a number of buy-ins (typically 2–3 for cash games) at which they quit the session regardless of how they feel about it. The psychological pull to “get even” is real and measurable: studies on tilt and loss aversion in poker show that players behind in a session take significantly larger risks than their optimal strategy would recommend.
Set your stop-loss before you sit down. Write it down if you have to. The decision to quit should never be made in the middle of a downswing — that’s exactly when your judgment is worst.
Not Tracking Your Results
Human memory is heavily biased toward bad beats and coolers. Without tracking software (PokerTracker 4 or Hold’em Manager 3 for online; a simple spreadsheet for live), players routinely believe they’re running bad when they’re actually running at expected value, or convince themselves they’re beating a stake when they’ve been break-even for 50,000 hands.
Import every session from day one. The data doesn’t lie and it will show you things about your game — specific positions, specific hand types, specific stack-depth situations — that feel like running bad but are actually leaks.
Moving Up Stakes After a Big Win
A common pattern: player runs good over 10,000 hands at NL50, takes their profits and moves to NL100, runs into proper regulars, and drops back down having learned nothing. Moving up should be based on a sustained win rate over a statistically meaningful sample (100,000+ hands), not a hot streak. A single winning month at NL50 is variance. A 5bb/100 win rate over six months at NL50 is evidence.
Bluffing into Stations
At low and micro stakes, the single most costly leak is bluffing opponents who don’t fold. A calling station at NL25 does not fold top pair to a turn and river barrel. Bluffing in poker requires your opponent to be capable of folding — against players who call down with any pair, value betting thinly and cutting bluffs is more profitable than a balanced GTO approach. Know your opponent type before you launch a bluff.
Playing When Tired or Distracted
This is the easiest leak to fix and the one most consistently ignored. Poker decisions at the end of a 6-hour session are measurably worse than at the start — reaction time slows, ranges get wider, and tilt resistance drops. Set a session time limit and keep it. Playing another hour because you’re stuck is one of the most expensive habits in poker.
Skipping the Study
Playing more hands without reviewing them compounds your mistakes. A player putting in 20 hours a week of poker without any study is reinforcing whatever decisions they’re already making — right or wrong. A minimal study routine (1 hour of GTO Wizard spot review per 2 hours played) catches leaks before they become ingrained. The players who improve fastest are the ones who review sessions the same day they play them.