SB vs BTN iso raise 2.5bb
5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO limps, BTN isolates to 2.5bb · Small blind to act
Fits exactlyno game we have checked
CloseCP1 games
- CPCoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 5.8bbYour cards?
0.5bb
1bb
1bb
2.5bb
Tap your two cards.
Small blind's range
1,326 of 1,326 combos get hereFold 85.9%Call 4.9%Raise 5/7.5bb 9.3%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the small blind (SB) when CO limps, BTN isolates to 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?
CO limps, BTN isolates to 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the small blind (SB) folds 85.9%, calls 4.9% and raises 5/7.5bb 9.3%. Always call: 44. Always raise 5/7.5bb: QQ+, AQs+, QTs+, AKo. Mixed: 55-JJ, 33, A2s-AJs, K9s+, Q9s, J9s+, T8s+, 98s, 54s, AJo-AQo, KQo.
- Always fold
- 22, K2s-K8s, Q2s-Q8s, J2s-J8s, T2s-T7s, 92s-97s, 82s+, 72s+, 62s+, 52s-53s, 42s+, 32s, A2o-ATo, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
- Always call
- 44
- Always raise 5/7.5bb
- QQ+, AQs+, QTs+, AKo
- Mixed
- 55-JJ, 33, A2s-AJs, K9s+, Q9s, J9s+, T8s+, 98s, 54s, AJo-AQo, KQo
Settings: 5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 23.9). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.
Rake sources for the games it fits: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.