Max Jolliffe and Carmen Maria Perez set new records at the Badwater 135. Jolliffe, 34, won in 20:53:41, the first under 21 hours. Perez, 44, finished first among women in 21:05:32. Both were first-time participants.

The Badwater 135, a 135-mile ultra in Death Valley, is known for extreme conditions. Runners faced temperatures over 40 C. The course runs from Badwater Basin to Whitney Portal, with a 4,450-meter elevation gain. Read more culture coverage.

Jolliffe and Perez were not newcomers to ultra-distance running. Jolliffe has won several ultras, including the Moab 240 and Angeles Crest 100. Perez has won the W40 title at the 24-hour world championships. Related: Around the Bay Race Date and Distance Changes Announced.

This original Runner World brief is based on reporting from Canadian Running. Visit the source for its complete reporting, context and any later corrections.