QR1: Heather Watson WR 75 (CH 38 in January 2015) beat Danielle Lao (USA) WR 217 (CH 193 in September) 7-5 6-3
QR2: Heather Watson WR 75 (CH 38 in January 2015) vs Misaki Doi (JPN) WR 120 (CH 30 in October 2016)
H2H 4-0 to Heather including a qualifying match. First 3 in 2011/12. Last one R1 in Monterrey 2016, 6-4 6-7(0) 6-3, with Heather going on to take that WTA International title.