Fastest 10 km swim (one arm) in open water
Teodor Tsvetkov
4:18:57 hour(s):minute(s):second(s)
Bulgaria (Nikolovo, Ruse)
Age Restriction: Applications for this record title will only be accepted if the applicant is 16 years of age or over.

The fastest 10 km swim (one arm) in open water is 4 hour 18 minutes 57 seconds, achieved by Teodor Tsvetkov (Bulgaria), in Nikolovo, Ruse, Bulgaria, on 16 July 2023.

Teodor's main reason for attempting this record title was to fundraise for children with cancer. Teodor completed the attempt in record time without taking a break.