- Federico Delgado Heredia
- 168.75 square metre(s)
- Uruguay (Montevideo)
The largest chalk painting by one artist measures 168.75 m² (1,816 ft² 59 in²), and was created by Federico Delgado Heredia (Uruguay), in Montevideo, Uruguay, on 16 February 2019.
Federico spent approximately 12 hours, 51 minutes, 56 seconds to complete this largest chalk painting, which is 17.82 metres long and 9.47 metres wide.