The U.S Open replaces human line judges with optical technology : NPR
Australian Open's electronic line-calling necessary, but players prefer human element - Washington Times
Electronic line judge - Wikipedia
Gets the call right every time": How tennis went electronic
AO Opts for Live Electronic Line-Calling - YouTube
Line judges? No need. ATP to test all-electronic line calls
In/Out: The Portable Ready-to-Use Line Call Device
Australian Open: In coronavirus times, electronic line-calling takes center-stage at a Grand Slam
The big question mark: technology for clay line-calls?
A controversial question about line calls | Talk Tennis
Tennis Moves Toward Taking the Human Element Out of Line Calls - The New York Times
At the U.S. Open, that voice yelling 'Out!' comes from a computer | Reuters
Are You Good Enough to Be a Tennis Line Judge? - WSJ.com
Players Debate All-Electronic Line Calls at AO - Tennis Now
Is Cheating Ruining the Game? - Tennis Now
Hawk-Eye's Vision Adds to Interactive Atmosphere | For the Love of Tennis
Official Site of the 2022 US Open Tennis Championships - A USTA Event
A Guide to Coping with Bad Line Calls – Be Gr8 at Tennis – Rob Cherry
Tennis: In/Out, a solution for bad line calls - Racquet Social
Tennis Line Call App
Tennis Line Call App
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Automated Line Calls Will Replace Human Judges at U.S. Open - The New York Times
In/Out: The Portable Ready-to-Use Line Call Device
The U.S Open replaces human line judges with optical technology : NPR
Challenge System In Tennis (Explained) - All The Details
US Open to use Hawk-Eye line-calling technology on all tennis courts for first time
