Thomas Fancutt beat Yang Z. 6-4, 7-6 in Guangzhou, and the serve did the talking: 16 aces to two, and not a single break point conceded across the match (4/4 saved). One break in the whole contest was enough, plus a second-set tie-break.
Fancutt broke immediately in the opening game of the match, at 0-1, and that single hold of advantage carried the first set. The second set was a pure serving stand-off: Yang saved all six break points he faced, Fancutt all three, no break was made, and the set went to a tie-break that Fancutt took.
The headline number belongs to Fancutt's first serve: 38 of 44 first-serve points won (86%), including 17 of 18 (94%) in the second set. Yang was actually the more consistent server by percentage (83% first serves in, zero double faults) and won 47 service points to Fancutt's 46, but he never converted a break point all match.