- Hyuga Kinekawa
- 1.66 second(s)
- Japan (Kyoto)
The fastest mental arithmetic – Flash Anzan™ is 1.66 seconds and was achieved by Hyuga Kinekawa (Japan) by correctly adding 15 sets of three-digit numbers flashed on the screen at All Japan Soroban Championships held at Kyoto International Conference Center, in Sakyo, Kyoto, Japan, on 8 August 2018.
Hyuga Kinekawa won the competition and shortened the previous record of 1.68 seconds by 0.02 second.