LJ vs BB SRP C-Bet Strategy | 30bb Board-by-Board Hit Chart [Ajo MTT Vol.3]

Written by: Ajo (X: @AjoPoker)

Preflop Ranges

LJ open range

• The bottom of the open is around 33 and A8o (indifferent, mixed)
• Offsuit broadways down to JTo–KTo are open
• At a shallow 30bb, suited connectors and small pocket pairs lose value, while high cards (broadways) gain value

BB defense range

• BB calls broadly — down to Q4o
• 22 and 33 are pure calls (not mixed into 3-bets)

For a deeper dive into BB defense ranges, see Ajo's separate note article (in Japanese).

C-Bet Frequency Tendencies (4 Lenses)

How does the c-bet frequency change with board structure? Four ways to slice it.

1. By high card

• Boards with a T or higher as the top card see high c-bet frequency
• Frequency drops on 9-or-lower boards
• One subtle exception: KTo is in LJ's range, but the only 9xo is A9o, which weakens LJ's range on 9x boards

2. By suit structure

• Monotone boards see the highest c-bet frequency but the lowest EV
• On monotone boards, BB also has nutted hands (flushes), so large bet sizes are rarely usable

3. By pairedness

• Paired boards c-bet at 84% — high but not as extreme as you might expect
• As we'll see, low paired boards are the exception because of trips coverage

4. By connectedness

• The drier (less connected) the board, the higher the c-bet frequency
• Less straight potential = clearer range advantage for IP

Individual Board Breakdowns

Eight specific boards.

1. A95 Rainbow

• Range bet (almost every hand bets)
• Sizes used range from 20% to 125% pot
• AT+ is the value lower bound for large bets
• Pocket pairs don't fold to a 33% bet
• Pocket pairs fold to a 55% bet

→ To force pocket pairs to fold, you need 55% or larger.

2. A95 Two-Tone

• Range bet
• Sizes used: 20% to 83%
• AQs with a flush draw favors 55%, while AQs without a flush draw favors 83% for protection
• Pocket pairs don't fold to a 20% bet
• Pocket pairs without backdoor flush draws mostly fold to a 33% bet
• QJo with a backdoor flush draw check-raises at a meaningful frequency

3. K95 Rainbow

• Bets at 81% of range
• Sizes used: 20% to 83%
• High check-frequency hands: ATs–AQs, pocket pairs, K5s–K7s, etc.
• Pocket pairs call a 20% bet
• Pocket pairs with both backdoor flush colors call a 33% bet at low frequency

4. K95 Two-Tone

• Bets at 77% of range
• Even at a 20% bet, small pocket pairs without a backdoor flush draw prefer to fold
• Why? Because gutshots and flush draws have higher continuation priority
• This is a board where small pocket pairs become tough calls in practice

5. KK5 Rainbow

• Range bet
• Most of the time at a 20% size
• Against the 20% bet, even ace-high struggles, and BB folds 53% of its range
• BB raises with most Kx, 5x, and backdoor straight draws

6. K55 Rainbow

• Bets at 55% of range (not a range bet)
• QQ and JJ — marginal hands with low protection needs — check at high frequency
• Only size used: 20%
• Against the 20% bet, ace-high check-raises at high frequency

7. 777 (Trips Board)

• Range bet
• Trips boards heavily favor IP (overpair / nut-hand coverage skews)
• Bet without hesitation

8. 862 Rainbow

• Bets at 50% of range (low / connected boards have more checking)
• Most-used size: 83%
• 99–QQ and 8x prefer large bets for protection
• Small pocket pairs don't fold to 55%-or-smaller, but fold to 83%
• Out counts for small pocket pairs:
  • vs top hit: 2 outs
  • vs bottom hit: 5 outs

Summary

A two-lens framework for c-betting decisions.

Equilibrium lens (from the GTO solution)

1. How much does this board favor the IP raiser?
2. Can a small bet already fold out a lot of hands?
3. Do you hold hands that need protection?

Exploit lens (from opponent tendencies)

4. Will this be a tough call? (Especially watch how small pocket pairs respond.)
5. Are check-raises sufficient? (Most opponents under-raise.)

Combine both lenses to choose your sizes and frequencies.

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