US Route 66 – May 29, 2026 /ENDURANCE SPORTSWIRE/ – On Tuesday June 2nd at 5 AM PDT, 66 year-old Irish ultra-endurance cycling legend Joe Barr will attempt to set a Guinness World Record by cycling the full length of Route 66, from Santa Monica, California, to Chicago, Illinois – approximately 2,448 miles – nonstop in nine days. This historic attempt coincides with the Route 66 Centennial, the highway’s 100th anniversary, making it one of the most symbolically resonant athletic events of 2026.