Tennis Ball Review: Wilson US Open These are my favorite tennis balls on the market. The bounce test came in at 25 inches (63.5 cm) before and after playing for 3 hours. This is super impressive. The weight test came in at 59g for each ball... All consistent. Personally? I have found the new cans of Us Open balls (2026) to last a LOT longer than past Us Open tennis balls. After cutting them open, we see there’s a difference! Not sure if it means anything... but interesting. Overall Grade: S tier #tennis #tennisballs #usopen #wilsonusopen #usta