73s Complete Pre-flop and Post-flop Strategy Guide: When to Play, How to Play, and Why

Context: STRATEGY article: 73s-complete-strategy-guide

Why Study 73s?

73s (suited 73) is extremely weak: often the worst suited connector in poker, with low card ranks and a large gap, making it nearly impossible to hit strong made hands. However, this very weakness gives it unique exploitative value—when opponents overfold, you can use this low-cost hand to represent a strong range. This article does not recommend regular use but will outline profitable play in specific scenarios.

Preflop Range: Only Consider in Deep Stacked and Specific Positions

The following strategy assumes effective stack depth >100BB and that opponents have a sufficient fold-to-steal rate (>70%).

Fold Positions (Fold in Almost All Cases)

• Early Position (UTG, UTG+1, MP): Always fold. Open-raising exposes a weak range, and calling is unprofitable.
• Middle Position (HJ, CO): Even with a high fold rate, not recommended. The expected value of stealing with 73s is usually negative.
• Facing a Raise (Any Position): Fold unless under very special circumstances (e.g., small blind facing a big blind raise with a terrible opponent image).

Positions Where Stealing May Be Considered (Only When Fold Rate Conditions Are Met)

• Button (BTN): When all players from CO and earlier have folded and the big blind/small blind have a high fold rate, raise to 2.5BB. If the big blind's call frequency >30%, give up.
• Small Blind (SB): When everyone folds to you and the big blind's fold-to-steal rate >75%, raise to 3BB. If the big blind's 3bet frequency >10%, give up.
• Big Blind Facing Small Blind Raise: Do not defend with 73s! Unless the opponent's raising range is extremely wide and you plan to bluff frequently postflop.

Special Case: Defending in Deep Stacked Multiway Pots

• In an unraised multiway pot, it is acceptable for the big blind to check with 73s for free, but folding is usually recommended. Only keep it if you anticipate being able to use position and very low pot odds in postflop bluffs.

Postflop Strategy: Maximize When You Hit, Fold When You Miss (Unless You Have a Strong Draw)

73s has an extremely low chance of hitting a strong made hand on the flop:

• Top pair (7 or 3): ~3.5%
• Two pair or trips: ~2%
• Flush draw: ~11% (flop two of a suit)
• Straight draw: ~1.3% (78X or 56X without duplication)

Top Pair (7 or 3)

• If top pair is your only made hand with no flush or straight draw, use a small bet (1/3 pot) as a probe. If raised, usually fold unless the opponent is extremely aggressive.
• If top pair + flush draw, increase bet to 2/3 pot and be prepared to apply pressure on the turn.

Two Pair or Trips

• This is the best-case scenario but very rare. Bet quickly for value, standard size 2/3 to 3/4 pot. If the board is connected or flush-friendly, consider slow-playing? No, bet directly as the hand is vulnerable.

Flush Draw or Gutshot

• When you have a flush draw on the flop and the opponent's fold rate is sufficient, use a semi-bluff raise or continuation bet. Fold if you miss on the turn.
• Gutshot draws are usually not worth chasing unless the board is very dry and the opponent folds often.

Complete Miss (~83% of Cases)

• Flop: If the expected value of a continuation bet is negative (i.e., opponent call frequency >40%), go for a check-fold.
• Turn: If you checked the flop, and the turn brings a potential draw, consider a small bet to steal, but usually fold.
• River: Only consider a pure bluff if you hold blockers (e.g., 73s on a Q72 board blocks the 7) and your bet size is <1/2 pot.

Common Mistakes & Adjustments

1. Don't overestimate the steal value of 73s: Many players see "suited" and raise from the button, but 73s has very low equity. Only use when opponent fold-to-steal is >70%.
2. Don't overbluff postflop: 73s has few board combinations and is easy to get caught. Prefer boards with backdoor draws for betting.
3. Avoid large pots: If you flop a weak pair and face strong action, retreat immediately.

Summary: When to Actually Use 73s?

• Only on the button or small blind, with a very high opponent fold-to-steal rate.
• Postflop, only play straight or flush draws; don't fall in love with top pair.
• Use as an occasional tool to balance your range, no more than once every 100 hands.

Remember, 73s is essentially a "cost of buying the pot." If your overall stealing strategy is correct, it won't become an obvious leak.