Under Radar: ATP Announces Tour-Wide Adoption of Electronic Line Calling Live From 2025

The ATP has announced that Electronic Line Calling Live (ELC Live) will be implemented across its entire Tour from 2025.

This advanced officiating technology is designed to improve accuracy and consistency throughout matches, a role traditionally carried out by on–court line judges. The decision to adopt ELC Live was supported by research conducted by ATP across multiple tennis stakeholders, including fans, which identified accuracy and consistency as the most important factors in assessing different line–calling systems.

The move is set to optimise accuracy and consistency across tournaments, match courts and surfaces, for players competing in both main draw and qualifying events. Andrea Gaudenzi, ATP Chairman, said: “This is a landmark moment for our sport, and not one we’ve reached without careful consideration. Tradition is core to tennis and line judges have played an important part in the game over the years.

That said, we have a responsibility to embrace innovation and new technologies. Our sport deserves the most accurate form of officiating and we’re delighted to be able to deliver this across our whole Tour from 2025.” ELC Live was first trialled at the Next Gen ATP Finals in 2017 in Milan, and has since been available for tournaments on a voluntary basis.

In recent years, the system has become widely adopted since the COVID–19 pandemic. It is anticipated that multiple different suppliers will be approved across the various court surfaces from 2025.

The implementation of ELC Live will also deliver comprehensive player and ball tracking across the whole Tour, leading to an unprecedented level of data for player–performance analysis and the development of new statistics in the game in collaboration with Tennis Data Innovations (TDI), in addition to future commercialisation opportunities.