GTO position ranges steal In this strategic guide, James Sweeney explores modern GTO-based approaches to big blind defense. He explains why traditional tight play from the BB is outdated, demonstrates optimal defending ranges against various positions, and shows how raise sizes should affect your defense strategy. Modern GTO strategy supports wider big blind defense than traditional approaches. Defending frequencies should adjust based on raise sizes and positions. Modern BB Defense Essentials: 44% defense frequency needed vs button raises Wider defense required against weaker opponents Raise sizing significantly impacts defense ranges Against min-raises, defend much wider than traditional Defense ranges vary greatly by opponent position 3-bet frequencies remain stable across different raise sizes Traditional tight BB play is outdated per solver data