A spot in the next round is at stake on Tuesday, when Sergey Fomin goes up against Yi Zhou in the Shanghai round of 32. Yi Zhou limps in on a 3-match losing skid, just 4 wins in 10. Sergey Fomin limps in on a 2-match losing skid, just 4 wins in 10.

Zhou's 70.8% behind the first serve (against 67.4% for Fomin) means break chances should be scarce in one direction. Little separates them; Zhou gets the nod on the finest of margins.