April 27 (UPI) -- Sabastian Sawe had greater speed on his mind in the wake of the first official sub-2-hour marathon, saying a better result is "only a matter of time."

Sawe, 31, became the first runner to officially break the barrier when he crossed the finish line in 1 hour, 59 minutes, 30 seconds to win Sunday's London Marathon.

The Kenyan edged Ethiopian Yomif Kejelcha, who made his marathon debut, by 11 seconds. Kejelcha became the second person to run a sub-2-hour marathon, at 1:59:41.

"It was possible to run faster yesterday," Sawe told BBC Sport on Monday. "Even 1:58 is possible."

Marathon legend Eliud Kipchoge became the first person to run a sub-2-hour marathon in 2019, but his effort was not official because standard competition rules were not followed.