Rebecca Rees-Evans

Rebecca began doing adventurous expeditions shortly after her marriage to John, with an expedition to the north face of Mount Everest on which she rescued John from a crevasse that he fell into, high on the Main Rongbuk Glacier at an altitude of around 6,250 metres.

About Rebecca Rees-Evans

First Lady to Speed Climb Kilimanjaro

On 21st May 2005 Rebecca attempted her first speed climb of Kilimanjaro, starting from Marangu Gate at around noon, following some administrative delays imposed by the park authorities. She summited Kilimanjaro in the middle of the night; a little before 0200, in high winds and a snow storm. While the men’s record is attempted on an almost annual basis, Rebecca's record stood for four years before being beaten.

Rebecca’s attempt was a timed ascent only, and she walked down the mountain.

Speed Ascent on Marangu Route

  • 13 hours 16 mins 37 secs
  • unacclimatised, accompanied, supported
  • 21st May 2005

Overview of corroboration

GPS profile / barometric altimeter & HRM / summit photo
NB: magnify JPEG images for details

GPS verification

  • download and install a free trial of Memory Map software
  • download and open this low resolution geo-referenced Kilimanjaro map onto which the GPS-captured overlay files will be laid
  • download the women’s MMO files
  • once overlay files are opened onto the Kilimanjaro map you’ll be able to hover your mouse over any point on the route and get a read-out of the athletes: time from start, instantaneous speed, altitude, etc. Garmin will confirm that these 3 dimensional positional files are not programmable and are therefore tamperproof

Heart rate / barometric altimeter verification

  • download and install a free trial of Polar Precision Performance software
  • then download the athlete’s Polar heart rate / barometric altimeter files
  • note that during capture of Polar active files the altimeter cannot be recalibrated without terminating the file. Assuming an authentic starting elevation this feature makes these files tamperproof. Barometric altimeters will however have an error of up to 5% when not calibrated over a course of approximately 4,000 m height gain

From before his teens John's main interest has always been adventurous expeditions. At the age of 12, he eventually concluded a long campaign to persuade his mother to allow him to cycle the 30km round trip each day to school and back. After school John joined the British Army but wasn't particularly convinced by the merits of Brits killing Serbs, so left by the age of 21 and has committed himself to diverse expeditions ever since.


When ascending mountains at high altitude, perhaps the most significant factor contributing to success, beyond acquiring safe and thorough acclimatisation, is the trekker's power to weight ratio. If you're heavy, you're going to struggle, whether the reason you're heavy is that you're carrying a lot of muscle, or your body is well equipped with unused "emergency reserves".


If you're interested in climbing with us, please either complete our enquiry form below or else call us on one of the following numbers, and speak directly to one of our coordinators.