Endurance Challenge

10K & 5K runners are off and we're now waiting for our first finishers. #ECSCApic.twitter.com/PNeh1xllZ1

Runners are off to the trails in the #ECSCA Half Marathon on another beautiful morning.pic.twitter.com/RnX9oZHTe8

Saturday at #ECSCA is a wrap. We look forward to seeing our Half Marathon, 10K & 5K runners tomorrow morning.pic.twitter.com/B805vOuqXz

Ida Nilsson (6:59) wins the #ECSCA @GORETEXna, followed by Boulet (7:06) and Croft (7:20). #TNF50 #ultrachatpic.twitter.com/B1t3hLSpyE

#ECSCA @GORETEXna 50 Mile, 50K, Marathon and Marathon Relay results can be found at the link below. http://bit.ly/2eKRrpW pic.twitter.com/r1suKI2S7k

Zach Miller wins the #ECSCA @GORETEXna 50 Mile in 5:57 & cheers on Hayden Hawks to his second place finish. #trailrunning #ultrachat #tnf50pic.twitter.com/bVV0V4xadL

Miller & Hawks come out of Muir Beach (Mile 40.8) in 4:51. Laney is now in 3rd, 9 minutes back. #tnf50 #ecsca #ultrachatpic.twitter.com/2Fo85KHdg4

Women's leaders are Kimmel (3:49) and Nilsson/Croft (3:52) at Stinson Beach (Mile 29.4). Croft looks strongest. #ECSCA #TNF50pic.twitter.com/cbZ8W7rK3M

Miller and Hawks continue to run side by side climbing out of Stinson Beach (Mile 29) in 3:14. Canaday is only 2 minutes back. #ECSCA #TNF50pic.twitter.com/35SLHC6nOR

Nilsson leads at Muir Beach (Mile 14.3) in 1:48. She's 30 seconds ahead of Kimmel and Boulet. #ECSCApic.twitter.com/quuCOy5FfA

At Tennessee Valley, Nilson, Boulet & Kimmel come in together at 1:12. Leading the women. #ECSCApic.twitter.com/hohiMNHt6n

Hawks & Miller still lead at Tennessee Valley Aid, just under 10 miles in 1:03. Reed still second in 1:04. Lots of runners close by. #ECSCApic.twitter.com/aIynvhGj6C

Hawks & Miller lead at 6 miles in :35. Reed is 3rd in :36 followed by a giant chase pack. #ECSCApic.twitter.com/8xvRJTvPsn

The #ECSCA GORE-TEX 50 Mile is off. It's going to be a fast one. #ultrachat #ultrarunning #tnf50pic.twitter.com/BlQeJoDmgf

Rest tonight because tomorrow holds a day of incredible experiences. We'll see our #ECSCA Saturday racers bright and early.pic.twitter.com/nnJhTdjf8v

Join us for the #ECSCA pre race panel w/ @DeanKarnazes & RD Nick Moore. 6:30-7:30PM at @thenorthface San Francisco.pic.twitter.com/KgLiLZD98S

#ECSCA: Only @GORETEXna 50M on Saturday & 5K on Sunday are able to park on-site. All others must take our shuttle. http://bit.ly/2g0UjBi pic.twitter.com/uuI2GnZoLA

Our #ECSCA packet pickups are open. Come on by today.pic.twitter.com/hnDQZJD7yu

Track your runner at #ECSCA. Sign up for athlete updates at the link below. http://bit.ly/2eKNHEO pic.twitter.com/zphVBFg7Az

Pick up your packet Thursday or Friday from @TheNorthFace Corte Madera, San or Stanford. See you there. #ECSCA http://bit.ly/2gyipBz pic.twitter.com/C0B4OVb9Bq