3-bet exploit GTO ranges Should you fold marginal hands preflop? Uri Peleg breaks down the EV of opening ranges and explains why playing tight loses money long-term. Learn when to deviate from GTO ranges, how to adjust to different opponents, and why weaker hands protect your premium holdings. Top hands make 93% of UTG opening profit, but folding marginal hands makes you exploitable and costs EV through reduced action. Strategic Range Construction: Top 3-5% of hands (Aces through Ace-Queen) capture 93% of total EV when opening under the gun Marginal hands like Ten-Nine suited make only 0.01 big blinds but still contribute positive EV Playing only premium hands makes your range transparent and reduces action on strong holdings Mixing weaker hands into your range keeps opponents guessing and protects your value hands Seven percent EV loss from playing too tight is significant in a game where edges are thin Against aggressive three-bettors, bottom-of-range hands lose profitability and should be cut from opening ranges Exploit weak opponents by both widening ranges and increasing raise sizes when position and table dynamics favor aggression