The Bubble

Free practice for tournament poker

Decision training built for tournament Texas Hold’em. One spot at a time: choose an action, then read why it works.

  • Completely free
  • No sign-up
  • Tournaments only
  • Every number shows its working

Every answer is graded Optimal / Acceptable / Mistake. The headline number is EV loss — how much a decision costs you per hand, where closer to zero is better. You see not just whether you were right, but how close you came. Every figure in the explanations is computed on the spot, and you can open the arithmetic behind it.

New here? TryRules→Coursein that order
Average EV loss—Cost per hand. Closer to zero is better
Optimal rate—Share of answers graded Optimal
Hands answered—Total spots you have answered
Optimal / Acceptable / Mistake—Acceptable means close, but not costly
13×13 accuracy heatmap

Accuracy for each of the 169 starting hands. Suited hands sit above the diagonal, offsuit below, pocket pairs along it. Darker means you play it correctly more often.

accuracy lowhighEvery cell also shows its number

AA: no data