Rules Clarification-TDA Rule 47

Good Afternoon Everyone,

There's been a need to clarify the inner workings of the TDA Rule 47

I will NOT be updating the language in the rules, this post will serve as the update.

Clarification on TDA RULE 47

This week we are clarifying a rule on what does and does not constitute re-opening the betting. TDA Rule 47A discusses this in a very implied manner and Example 1 in the Addendum for Rule 47A further clarifies the situtation.

Summary:

When an all-in bet does not meet the requirements for a full and proper raise the betting is closed. However, if the total concurrent short-stacked all-in wagers equal a proper full raise, then the betting is re-opened . See Example 1 and 1A below.

47: Re-Opening the Bet.

A: In no-limit and pot limit, an all-in wager (or cumulative multiple short all-ins) totaling less than a full bet or raise will not reopen betting for players who have already acted and are not facing at least a full bet or raise when the action returns to them. If multiple short all-ins re-open the betting, the minimum raise is always the last full valid bet or raise of the round (See also Rule 43).

B: In limit, at least 50% of a full bet or raise is required to re-open betting for players who have already acted. See Illustration Addendum.

Addendum on Rule 47: Re-opening the bet.                                                  

Example 1. Multiple short all-in wagers that cumulatively equal a full raise and therefore re-open betting.

NLHE, Blinds 50-100. Post-flop, A opens betting for the 100 minimum. B goes all in for a total of 125. C calls the 125, D goes all in for 200 total and E calls 200.

Action returns to A who is facing a total raise of 100. Since 100 is a full raise, the betting is re-opened for A who can fold, call, or raise here. Note that neither B’s increment of 25 or D’s increment of 75 is by itself a full raise, but when added together they total a full raise and thus re-open the betting to “a player who is facing at least a full raise when the action returns”.

Example 1-A: At the end of Example 1 above, A smooth calls the 200 total (another 100 to him). The bet is now on C who only faces a 75 increment. C called 125 previously and now faces 200 total (75 more). C must face at least 225 total to re-open betting. Because 75 is not a full raise, betting for C is not re-opened and C can either call with 75 more or fold, he cannot raise.

Example 1-B: At the end of Example 1 above, A raises the minimum (100), and makes it 300 total to C. C already has called 125 so it’s an additional 175 for C to call. 175 is more than a full raise. Since C already acted and is “now facing at least a full raise”, the betting is re-opened to C who can fold, call, or re-raise here.

Example 2: Multiple short all-ins, the min-raise is the last full valid bet or raise.

NLHE, Blinds 50-100. Post-flop A opens for 300, B pushes all-in for 500 total, C goes all-in for 650 total, D goes all-in for 800 total, E calls 800. What is the min raise for Player F? The opening bet (300) sets the initial min raise. Because no single player was all-in for more than 300, the min raise for F remains 300. F can either smooth call 800 or raise to at least 1100. See also Rule 43, Example 2 in Illustration Addendum. 

Example 3. Short all-in, 2 scenarios.NLHE, Blinds 2000-4000. Pre-flop A calls the BB for 4000. B folds and C pushes all-in for 7500 total (an increment of 3500 above the 4000 BB). It’s folded around to the SB who also folds.

Example 3-A. It’s 3500 more to the BB who has not yet acted on his option. The BB can fold, smooth call the 3500, or raise by at least 4000 for a total of 11,500. The BB smooth calls and it’s 3500 more to A. A has already acted and is facing 3500 which is not a full raise. Therefore, A can only fold or call the 3500, he cannot raise because it is not “at least a full bet when the action returns to him”.

Example 3-B. The BB raises the minimum (4000), for a total of 11500. It is now 7500 to A and because 7500 is more than a full minimum raise, betting is now re-opened for A who can fold, call, or re-raise.