Suited-ace split
A9s and A5s are mainly calls, A8s is a 4-bet/fold mix, and A4s uses all three actions.
Preflop range · 6-max · 100bb
CO response vs SB 3-bet
GTO CO response to a SB 3-bet (6-max, 100bb): fold, call and 4-bet as frequencies — 27 hands primarily call and 3 primarily 4-bet. Real data from the Pokerai API.
Scenario CO vs SB 3-betStack 100bbAction CO open 3bb → SB 3-bet 9bbOutput 169 starting hands
Complete 13×13 range
| AA | AKs | AQs | AJs | ATs | A9s91 | A8s49 | A7s23 | A6s8 | A5s91 | A4s47 | A3s21 | A2s |
| AKo70 | KK | KQs | KJs | KTs | K9s35 | K8s | K7s | K6s6 | K5s28 | K4s | K3s | K2s |
| AQo75 | KQo31 | QQ54 | QJs | QTs | Q9s | Q8s | Q7s | Q6s | Q5s | Q4s | Q3s | Q2s |
| AJo30 | KJo1 | QJo | JJ77 | JTs | J9s29 | J8s | J7s | J6s | J5s | J4s | J3s | J2s |
| ATo11 | KTo1 | QTo | JTo | TT98 | T9s | T8s | T7s | T6s | T5s | T4s | T3s | T2s |
| A9o | K9o | Q9o | J9o | T9o | 99 | 98s20 | 97s | 96s | 95s | 94s | 93s | 92s |
| A8o | K8o | Q8o | J8o | T8o | 98o | 8893 | 87s53 | 86s | 85s | 84s | 83s | 82s |
| A7o | K7o | Q7o | J7o | T7o | 97o | 87o | 7788 | 76s82 | 75s | 74s | 73s | 72s |
| A6o | K6o | Q6o | J6o | T6o | 96o | 86o | 76o | 6659 | 65s61 | 64s | 63s | 62s |
| A5o | K5o | Q5o | J5o | T5o | 95o | 85o | 75o | 65o | 5533 | 54s78 | 53s | 52s |
| A4o | K4o | Q4o | J4o | T4o | 94o | 84o | 74o | 64o | 54o | 4443 | 43s | 42s |
| A3o | K3o | Q3o | J3o | T3o | 93o | 83o | 73o | 63o | 53o | 43o | 3351 | 32s |
| A2o | K2o | Q2o | J2o | T2o | 92o | 82o | 72o | 62o | 52o | 42o | 32o | 2256 |
AI Coach · Range interpretation
How to interpret this CO vs SB 3-bet range
This CO-vs-SB 3-bet preset is call-heavy, with AA, KK, and AKs as the only pure 4-bets.
The grid calls the top suited broadways and T9s purely, while several suited aces and offsuit broadways mix. Pocket pairs mostly call or mix call/fold, with some 4-betting in the higher pairs.
Broadway contrast
AQs through JTs are pure calls, while AKo, AQo, KQo, and AJo include 4-bets or folds.
Connector edge
T9s is a pure call; 87s, 76s, 65s, and 54s mix call/fold, while 98s is mostly a fold.
Drill three bands in order: pure-call suited broadways, mixed suited aces, then the pair and suited-connector call/fold edge.
Quick answers
CO vs SB 3-bet FAQ
Short answers derived from this exact preset.
How often does CO vs SB 3-bet continue?
In this preset, it continues with about 13% of all starting combinations through a call or 4-Bet.
Which hands take the 4-Bet action?
Read the red portions of the grid. Solid red cells are pure; split cells use the displayed 4-Bet frequency.
Why are some hands mixed?
A mixed cell means more than one action belongs in this solved preset. The percentages specify how often each action is used.
Get this range via the API
One call returns all 169 hands as {fold, call, raise} frequencies:
POST /v1/gto/preflop/range
POST https://pokerai.bet/v1/gto/preflop/range { "positions": { "hero": "CO" }, "preflop_actions": [ { "position": "SB", "action": "small blind", "amount": 0.5 }, { "position": "BB", "action": "big blind", "amount": 1 }, { "position": "CO", "action": "raise", "amount": 3 }, { "position": "SB", "action": "raise", "amount": 8.5 } ] }
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