Poker Term

BTN 100bb 3-Bet Jam

BTN 100bb 3-Bet Jam

A play where the player on the button (BTN) moves all-in for 100 big blinds as a three-bet (re-raise) after an opponent's open-raise.

Overview

BTN 100bb 3-Bet Jam refers to a specific no-limit hold'em action in which the player on the button (BTN) shoves all-in for exactly 100 big blinds (bb) as a three-bet. This move is a large overbet shove, as standard three-bet sizes at 100bb effective stacks are typically between 8bb and 12bb. The play is highly polarized, usually representing either a very strong hand (like QQ+, AK) or a bluff with hands that have good equity when called.

When and Why It Is Used

This play is rare in standard deep-stacked cash games or tournaments because risking 100bb to win a small pot (usually around 4.5bb after an open and possible blinds) is inefficient. It is more commonly seen in specific situations:

  • Exploitative Play: Against opponents who fold too often to three-bets or who have a capped range after opening. By jamming, the button puts maximum pressure and forces folds from many hands that would otherwise call a normal three-bet.
  • Tournament Scenarios: Near the bubble or with a very short stack, but 100bb is deep for tournaments; thus, this term might be used in a specific training context or as a theoretical example.
  • Balance: In a balanced strategy, a player might include a few combos of bluffs (e.g., Ax suited or suited connectors) to avoid being predictable when they jam for value.

Example Scenario

In a 6-max cash game with 100bb effective stacks, the cutoff (CO) opens to 3bb. The button (BTN) decides to three-bet jam for 100bb. The CO’s open range might include hands like 22+, suited connectors, and broadways. The BTN’s jam range for value might be TT+, AQ+. For bluffs, he might choose A5s or KQs, selecting combos that have good equity against calling ranges.

Strategic Considerations

  • Stack Depth: At 100bb, jamming is an all-or-nothing move. It eliminates post-flop play and relies solely on fold equity and showdown value when called.
  • Position: The button’s positional advantage is sacrificed by jamming, but the play can be effective if the opener’s range is weak or if the opener expects the button to three-bet smaller.
  • Range Construction: Typically, the jamming range is very narrow and polarized. Including too many bluffs can be costly if opponents adjust.

Related Terms

  • 3-bet: A re-raise against an initial open.
  • Jam: An all-in bet.
  • Button (BTN): The dealer position, which acts last post-flop.
  • Stack Depth: The amount of chips a player has, influencing betting decisions.

Related Terms