Michael Zheng and Mitchell Krueger meet in the quarterfinal at Tiburon on Friday. Michael Zheng has won 6 of the last 10. Mitchell Krueger brings a 3-match winning streak into this one, 6-4 across the last ten.
Hold strength tells the story — 72% versus 68.7% on first-serve points in Zheng's favor. Zheng comes in off a compressed schedule; Krueger comes in off a compressed schedule. Anything other than a Zheng win would rank among the bigger surprises of the week.