Suited-ace contrast
A8s, A5s, and A4s mix only 3-bet and call, while A7s mixes 3-bet and fold; A3s and A2s fold purely.
Preflop range · 6-max · 40bb
BTN defense vs CO open
GTO BTN response to a CO open (6-max, 40bb): call, 3-bet, fold as frequencies — 7 combos call, 25 3-bet. Real data from the Pokerai API.
Scenario BTN vs COStack 40bbAction CO open 2.2bbOutput 169 starting hands
Complete 13×13 range
| AA | AKs | AQs94 | AJs | ATs | A9s55 | A8s87 | A7s15 | A6s | A5s71 | A4s84 | A3s | A2s |
| AKo | KK | KQs | KJs | KTs53 | K9s89 | K8s | K7s | K6s | K5s46 | K4s | K3s | K2s |
| AQo59 | KQo | QJs51 | QTs70 | Q9s90 | Q8s | Q7s | Q6s | Q5s | Q4s | Q3s | Q2s | |
| AJo | KJo55 | QJo7 | JJ | JTs66 | J9s54 | J8s | J7s | J6s | J5s | J4s | J3s | J2s |
| ATo79 | KTo | QTo | JTo | TT86 | T9s32 | T8s | T7s | T6s | T5s | T4s | T3s | T2s |
| A9o | K9o | Q9o | J9o | T9o | 9957 | 98s8 | 97s | 96s | 95s | 94s | 93s | 92s |
| A8o | K8o | Q8o | J8o | T8o | 98o | 8867 | 87s | 86s | 85s | 84s | 83s | 82s |
| A7o | K7o | Q7o | J7o | T7o | 97o | 87o | 7762 | 76s2 | 75s | 74s | 73s | 72s |
| A6o | K6o | Q6o | J6o | T6o | 96o | 86o | 76o | 6640 | 65s | 64s | 63s | 62s |
| A5o | K5o | Q5o | J5o | T5o | 95o | 85o | 75o | 65o | 5527 | 54s | 53s | 52s |
| A4o | K4o | Q4o | J4o | T4o | 94o | 84o | 74o | 64o | 54o | 4419 | 43s | 42s |
| A3o | K3o | Q3o | J3o | T3o | 93o | 83o | 73o | 63o | 53o | 43o | 3310 | 32s |
| A2o | K2o | Q2o | J2o | T2o | 92o | 82o | 72o | 62o | 52o | 42o | 32o | 228 |
AI Coach · Range interpretation
How to interpret this BTN vs CO range
This BTN versus CO open preset combines pure premium 3-bets with many distinct three-way or two-way mixes among suited aces, broadways, and middle-to-small pairs.
The grid shows selected suited aces and suited broadways taking different 3-bet, call, and fold branches rather than following one uniform cutoff. A useful study pattern is the pair ladder: premium pairs 3-bet purely, while lower pairs increasingly retain call and fold branches.
Broadway split
KTs and QJs are close 3-bet/call mixes, QTs and JTs lean toward 3-bet while still calling, and QJo is predominantly fold.
Pair ladder
TT and 99 mix 3-bet/call, 88 and 77 lean toward call, 66 uses all three actions, and 44 through 22 only mix call/fold.
Cover the grid and place the four boundary hands into 3-bet/call/fold, 3-bet/call, 3-bet/fold, or call/fold; then check the displayed mixes.
Quick answers
BTN vs CO FAQ
Short answers derived from this exact preset.
How often does BTN vs CO continue?
In this preset, it continues with about 15% 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": "BTN" }, "preflop_version": "6max_RC_40bb", "preflop_actions": [ { "position": "SB", "action": "small blind", "amount": 0.5 }, { "position": "BB", "action": "big blind", "amount": 1 }, { "position": "CO", "action": "raise", "amount": 2.2 } ] }
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