ITF Press Release, July 24, 2025
Electronic line calling (ELC) systems in tennis can now be classified as either Gold, Silver or Bronze under new evaluation procedures announced by the International Tennis Federation (ITF) on Wednesday.
Until now, there has been one level of classification which applied to systems intended for use at elite level events. The three-tiered system creates access to the technology at a broader range of levels.
Gold systems are intended for use at elite international-level competitions, such as Grand Slams, WTA and ATP Tours, Billie Jean King Cup by Gainbridge and Davis Cup.
Silver systems are intended for use at second tier international-level competitions, such as the ITF World Tennis Tour, and Bronze systems are aimed at national-level competitions.
The changes have been introduced following collaboration between the international tennis governing bodies (four Grand Slams, ATP, WTA and ITF).
Systems that meet the relevant standards are awarded classification at the appropriate level and are eligible to be used in events sanctioned by the international governing bodies.
The principles by which systems are assessed – accuracy, reliability, suitability and practicality – are the same at all levels. The new procedures unify the international governing bodies’ approach to the evaluation and ongoing monitoring of ELC systems.
Wider, more collaborative testing and sharing of results will ensure systems’ accountability and high standards of ELC delivery across the whole tennis calendar.
Stuart Miller, ITF Senior Executive Director, Integrity & Legal, said: “These procedures recognise the growing demand from both players and tournaments for ELC systems, the increasing number of ELC vendors available to provide systems, particularly at the lower levels of the tennis pyramid and our desire to ensure that technology meets the highest possible standards. The new procedures aim to ensure that we maintain those standards in the evaluation and ongoing use of ELC systems across all levels of tennis. We are grateful for the collaboration with the other international governing bodies of tennis throughout this process.”
Further information on the ELC Evaluation procedures can be found here.
