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PodcastExcess ReturnsSeptember 29, 2026

The Game Was Rigged in Their Favor. 28% Went Bust Anyway | Kris Abdelmessih on How to Size Bets

Even a favorable, known-odds bet destroys most bettors' capital if position size — not edge — is mismanaged.

  • The 2016 coin-flip study: Richard Dewey and Juan-Pablo Vilá gave 61 mostly-finance professionals $25 and 30 minutes to bet on a coin biased 60% in their favor with even-money payoffs.
  • Results were dismal: Only 21% hit the $250 cap despite simulations showing 95% should have; 28% went completely bust and a third net lost money on a rigged-favorable game.

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Themes, sentiment and reasons are AI-written paraphrases, checked so they never quote an episode. They may contain errors. Not investment advice. Episodes remain the property of their creators.