A day after his blistering run at the Lake Biwa Mainichi Marathon, Kengo Suzuki was still coming to grips with his status as a new Japanese national record holder on Monday.

Suzuki surprised even himself by setting the national men's marathon record of 2 hours, 4 minutes, 56 seconds in Sunday's race along the shores of Japan's largest freshwater lake in Shiga Prefecture.

"It's slowly sinking into my head that I actually set a new national record," Suzuki said in an online press conference.