Each time EJ Tackett steps to his lane in the upcoming Professional Bowlers Association World Championships, he’ll be thinking about more than just ball spin or angle. He’s also watching carefully for the subtle changes in lane oil patterns that can make all the difference.

Tackett has won the last three world titles and is currently considered one of the best bowlers on Earth. But his ability to throw a consistent ball isn’t enough; he must now also be a master of observing how the oil moves across the 60-foot lane, as it can change unpredictably throughout the game.

For amateurs, public bowling lanes are oiled in a high ratio, with more oil in the middle to help guide balls back towards the pocket. But for professionals, patterns are tougher, often with ratios of just 3:1 or even lower. This requires them to be precise not only in their ball placement but also in their speed and spin.

Technology has greatly improved lane oil distribution, ensuring more consistent play. However, this has made the sport more challenging for pros by adding an extra layer of strategy. It’s a bit like golf, with the oil acting as water hazards and bunkers on the bowling green.