According to Official Guinness Records,
The longest distance by unicycle on a line of bottles is 30.17 m (98 ft 11.79 in) and was achieved by Chen Zhongqing (China) on the set of CCTV-Guinness World Records Special at Heilan International Equestrian Club, in Jiangsu, China, on 5 January 2014.
For a complete list of 2014 records, please visit 2014 Guinness Records in China.