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BB Defence vs UTG Open (6-Max)

Against an under-the-gun open you defend only about 16% of hands from the big blind — 3-bet roughly 3% (QQ+, AK, A5s–A4s) and call about 13%. UTG opens the tightest range at the table, so this is the tightest big-blind defence.

Chart

AAAKsAQsAJsATsA9sA8sA7sA6sA5sA4sA3sA2s
AKoKKKQsKJsKTsK9sK8sK7sK6sK5sK4sK3sK2s
AQoKQoQQQJsQTsQ9sQ8sQ7sQ6sQ5sQ4sQ3sQ2s
AJoKJoQJoJJJTsJ9sJ8sJ7sJ6sJ5sJ4sJ3sJ2s
AToKToQToJToTTT9sT8sT7sT6sT5sT4sT3sT2s
A9oK9oQ9oJ9oT9o9998s97s96s95s94s93s92s
A8oK8oQ8oJ8oT8o98o8887s86s85s84s83s82s
A7oK7oQ7oJ7oT7o97o87o7776s75s74s73s72s
A6oK6oQ6oJ6oT6o96o86o76o6665s64s63s62s
A5oK5oQ5oJ5oT5o95o85o75o65o5554s53s52s
A4oK4oQ4oJ4oT4o94o84o74o64o54o4443s42s
A3oK3oQ3oJ3oT3o93o83o73o63o53o43o3332s
A2oK2oQ2oJ2oT2o92o82o72o62o52o42o32o22

3-betCallMixedFold

3-bet: QQ+, AKo, AKs, A5s, A4s
3.2% of hands (42 combos)

Call: 22-JJ, ATs-AQs, A2s-A5s, KTs-KQs, QTs-QJs, JTs, J9s, T9s, 98s, 87s, 76s, 65s, AJo, AQo, KQo
13.0% of hands (172 combos)

UTG opens 16% of hands. That range is stuffed with pairs, big aces and suited broadways — hands that dominate almost everything you would like to defend with. Your price is still good (about 22% equity needed), but hands like K9o and Q8s simply do not have 22% against QQ+ / AK-heavy ranges, and they have no way to make a strong hand when they do connect.

What you keep is what plays well against a strong, narrow range: pairs that can flop a set (22–JJ), suited aces and suited broadways that make the nuts, and suited connectors down to 65s that can stack an overpair. Offsuit hands almost entirely disappear — only AJo, AQo and KQo survive.

The 3-bet is nearly pure value (QQ+, AK) plus the same suited-wheel-ace bluffs. Do not add more bluffs here: against a range that continues with AA–JJ and AK, a bluff-heavy 3-bet just donates money. If you would like to play more hands against UTG, call more — do not 3-bet more.

FAQ

How wide should the big blind defend against an UTG open?

About 16% in 6-max — roughly 3% as a 3-bet (QQ+, AK, and A5s–A4s as bluffs) and 13% as a call. It is the tightest defence at the table because UTG has the tightest opening range at the table.

Can I call an UTG open with K9o in the big blind?

No. It is dominated by the entire top of UTG's range (AK, KQ, KJ), it cannot make a flush, and it makes a top pair that is behind whenever it is called. Against a 16% opening range it does not clear the ~22% equity you need — the offsuit hands that do are only AJo, AQo and KQo.

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Related charts

BB Defence vs Button Open (6-Max)BB Defence vs Cutoff Open (6-Max)UTG Opening Range (6-Max)8bb Push/Fold Chart (9-Max Nash)

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Cash-game ranges are a curated GTO reference, drilled question-by-question in the trainer. The mixed band lists hands solvers play only part of the time.

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