From the WUCC 2010 site: http://wucc2010.com/content/frisbee-marathon-record
To promote the WUCC 2010, we attempted to set the world record for throwing a frisbee the Marathon distance. And we did it! 10 frisbee players threw one frisbee the distance 42.195 kilometers in 1 hour, 56 minutes and 19 seconds (just faster than Ethiopian marathon runner Haile Gebrselassie’s record of 2:03:59 set at the Berlin marathon in 1998). The distance between players was 10 meters and there were 4219 passes and one 5 meter pass. The disc touched the ground 41 times. An independent agency monitored the event and certified the record.