IBM's Limb-Tracking System at the US Open Exposes What Makes a Serve Elite

IBM's Limb-Tracking System at the US Open Exposes What Makes a Serve Elite

IBM's new limb-tracking technology at the 2026 US Open captures 21 body and racket points 50 times per second to generate real-time Serve Quality scores. The system reveals that legs and trunk drive elite serves more than arms. Fans access the metric through the official app alongside other AI features.

IBM launched limb tracking at this year’s U.S. Open – and it’s scoring every tennis player’s serve for fans to see

This marks the first time IBM has launched a limb-tracking feature at a Grand Slam tennis tournament.

USTA and IBM Bring Limb Tracking to US Open to Score Tennis Players’ Serves - RAW CHILI

When world number three and top-ranked American tennis player Jessica Pegula stepped up to the baseline to serve against Belarus’ Aryna Sabalenka in the