Listed below are the verified claims for the record listed.
Backwards-Running, 100 km - Current world record
1.
The fastest 100 km run backwards was completed by Markus Jürgens (Germany).
On 4 May 2019, he completed the 100K WHEW Ultramarathon in a time of 12:20:37 hr.
Previous verified claims
1.
The fastest 100 km run backwards was completed by Ralf Klug (Germany) in 21:20:31 hours on 9-10 June 2016 in Bienne, Switzerland.
2.
The fastest 100 km run backwards was completed by Hassan Kurt (Germany) in 21:34 hours on 11-12 June 2016 in Niederhöchstadt, Germany.
The Book of Alternative records - World records, record breakers and more!
