Mexico City: Thai star Kiradech Aphibarnrat clenched his fist after his last putt of the day disappeared into the ground at the World Golf Championships-Mexico Championship.

Mexico City: Thai star Kiradech Aphibarnrat produced his best opening round of the year on the PGA TOUR on Thursday, carding a three-under 68 for a share of seventh position at the US$10.25 million World Golf Championships-Mexico Championship.