French Open director Amélie Mauresmo defended the continued use of human line judges on Monday after a missed call cost Casper Ruud his match [1].
The decision to maintain human officials despite the error highlights a growing tension between traditional officiating and the push for automated technology in professional tennis. Because clay courts leave physical marks, the sport has historically relied on human eyes to verify ball placement, a process now under scrutiny as electronic systems become standard on hard courts.
Mauresmo addressed the controversy at Roland Garros in Paris, where the tournament is held [3]. She said that the transition to fully automated systems is not yet feasible for the specific conditions of the French Open. The director said that the unique nature of the surface complicates the accuracy of digital tracking [2].
"Electronic line‑calling is not 100% reliable on clay," Mauresmo said [2].
The missed call sparked immediate backlash from spectators and analysts. On social media, some fans expressed frustration over the outcome, stating that Ruud "got robbed" [4]. Despite the outcry, the tournament leadership said that human judgment remains essential for the integrity of the game on clay [2].
The debate centers on whether the human element adds necessary nuance or introduces unacceptable error. While other Grand Slams have moved toward electronic calling to eliminate doubt, the French Open remains a holdout due to the technical challenges of tracking balls on a shifting red clay surface [1].
Mauresmo said that the tournament continues to evaluate technology, but the current priority remains the reliability of the match outcome [2].
“"Electronic line‑calling is not 100% reliable on clay."”
The French Open's refusal to adopt full electronic line-calling underscores a technical divide in tennis. While hard and grass courts allow for high-precision digital tracking, the physical displacement of clay makes automation less accurate. This creates a unique scenario where the world's most prestigious clay tournament remains reliant on human fallibility, potentially leading to more high-profile disputes as players and fans grow accustomed to the absolute certainty of electronic systems elsewhere.





