Suited aces are non-linear
AJs through A9s are active, A8s uses all three actions, A5s and A4s are 3-bet-led, while A3s is mostly folded and A2s is a pure fold.
Preflop range · 6-max · 100bb
SB defense vs CO open
GTO SB response to a CO open (6-max, 100bb): call, 3-bet, fold as frequencies — 0 combos call, 28 3-bet. Real data from the Pokerai API.
Scenario SB vs COStack 100bbAction CO open 3bbOutput 169 starting hands
Complete 13×13 range
| AA | AKs | AQs | AJs | ATs78 | A9s65 | A8s35 | A7s4 | A6s12 | A5s84 | A4s70 | A3s2 | A2s |
| AKo | KK | KQs | KJs99 | KTs78 | K9s57 | K8s | K7s | K6s6 | K5s | K4s | K3s | K2s |
| AQo92 | KQo82 | QJs97 | QTs72 | Q9s3 | Q8s | Q7s | Q6s | Q5s | Q4s | Q3s | Q2s | |
| AJo61 | KJo20 | QJo | JJ94 | JTs91 | J9s95 | J8s | J7s | J6s | J5s | J4s | J3s | J2s |
| ATo | KTo | QTo | JTo | TT85 | T9s81 | T8s | T7s | T6s | T5s | T4s | T3s | T2s |
| A9o | K9o | Q9o | J9o | T9o | 9980 | 98s3 | 97s | 96s | 95s | 94s | 93s | 92s |
| A8o | K8o | Q8o | J8o | T8o | 98o | 8871 | 87s2 | 86s | 85s | 84s | 83s | 82s |
| A7o | K7o | Q7o | J7o | T7o | 97o | 87o | 7754 | 76s6 | 75s | 74s | 73s | 72s |
| A6o | K6o | Q6o | J6o | T6o | 96o | 86o | 76o | 6641 | 65s3 | 64s | 63s | 62s |
| A5o | K5o | Q5o | J5o | T5o | 95o | 85o | 75o | 65o | 5519 | 54s5 | 53s | 52s |
| A4o | K4o | Q4o | J4o | T4o | 94o | 84o | 74o | 64o | 54o | 4414 | 43s | 42s |
| A3o | K3o | Q3o | J3o | T3o | 93o | 83o | 73o | 63o | 53o | 43o | 3314 | 32s |
| A2o | K2o | Q2o | J2o | T2o | 92o | 82o | 72o | 62o | 52o | 42o | 32o | 2218 |
AI Coach · Range interpretation
How to interpret this SB vs CO range
This SB-versus-CO open preset is 3-bet-led, with active suited aces and suited broadways alongside the premium pairs.
The grid shows no pure calls, although several holdings mix calling with other actions. A5s and A4s contrast sharply with A3s and the pure-fold A2s.
Suited broadways lead the non-pair region
KQs, KJs, QJs, JTs, and J9s are 3-bet-led, whereas KJo is mostly folded and QJo is a pure fold.
Pairs change at the lower edge
JJ through 88 are 3-bet-led, 77 and 66 use all three actions, and 55 through 22 contain call and fold.
Quiz suited aces, suited broadways, and pairs separately; then compare A5s/A4s with A3s/A2s and 77 with 66 through 22.
Quick answers
SB vs CO FAQ
Short answers derived from this exact preset.
How often does SB vs CO continue?
In this preset, it continues with about 13% of all starting combinations through a call or 3-Bet.
Which hands take the 3-Bet action?
Read the red portions of the grid. Solid red cells are pure; split cells use the displayed 3-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": "SB" }, "preflop_actions": [ { "position": "SB", "action": "small blind", "amount": 0.5 }, { "position": "BB", "action": "big blind", "amount": 1 }, { "position": "CO", "action": "raise", "amount": 3 } ] }
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