- This event has passed.
2019 Ruth Anderson Ultramarathon
October 12 @ 6:30 am - 7:00 pm| $75
A mostly flat, certified 4.5-mile loop on groomed dirt or asphalt path around scenic Lake Merced. The races start and finish at the Sunset Parking Lot. Runners will enjoy two aid stations per lap stocked with water, electrolytes, and a selection of foods.
Format: Runners will be allowed to choose their distance during the race, but a runner can only be a finisher in one race. Once reaching 50K or 50M, a runner can stop or continue. If the runner stops, he/she is a finisher in that race and his/her tag will be pulled. Choosing to go beyond the 50K / 50M distance makes the runner an entrant and competitor in the next longer event.