- Who
- Huai Nan Bei Gui Yuan
- What
- 298 people
- Where
- China (Huainan)
- When
The largest core fitness lesson involved 298 participants and was achieved by Huai Nan Bei Gui Yuan (China) in Huainan, Anhui, China, on 19 May 2018.
The final result came from their second attempt, 309 people participated the attempt and 11 people were discounted. The attempt lasted over 32 minutes.