Two-time Québec City semifinalist Christina McHale (2010, 2013) scored her first WTA main draw win since Rabat in May this week with her first-round defeat of Dayana Yastremska. She has split two previous meetings with No.8 seed Pauline Parmentier, both first-round encounters with a 6-4, 6-1 scoreline - the Frenchwoman winning in Auckland in 2012 and McHale gaining revenge a year later in Paris.
No.2 seed Petra Martic is fresh off the Oracle Challenger Series Chicago title last week - the Croat's biggest trophy to date - and is 2-0 against Naomi Broady, her opening opponent in Québec City. Martic's defeats of Broady, the 2015 semifinalist here, were a 6-4, 6-2 win in Linz qualifying in 2011 and a 7-6(4), 4-6, 6-3 win on the Briton's home turf in the Nottingham ITF $50,000 event in 2013.
Qualifier Marie Bouzkova, the 2014 US Open junior champion, made her Grand Slam main draw debut in Flushing Meadows two weeks ago - and yesterday followed it up here with her first WTA main draw win at the sixth attempt, over Sesil Karatantcheva. The Czech will bid for a quarterfinal debut against Varvara Lepchenko today.
Wildcard Leylah Fernandez, who turned 16 a week ago, became the youngest active player with a WTA main draw win with her first-round defeat of Gabriela Dabrowski, taking over from Marta Kostyuk. The Canadian, who also won a qualifying round in Montréal in August, is ranked No.588 and is the youngest player in the Top 600.
No.3 seed Monica Puig takes on Madison Brengle for the first time in over seven years today. Their only previous meeting was in Charleston qualifying in 2011, won by the Puerto Rican 2-6, 6-3, 7-5.
ORDER OF PLAY
COURT BANQUE NATIONALE (starts 11am)
Naomi BROADY (GBR) vs Petra MARTIC (CRO) 
Christina MCHALE (USA) vs Pauline PARMENTIER (FRA) 
Madison BRENGLE (USA) vs Monica PUIG (PUR) 
Desirae KRAWCZYK (USA) / Giuliana OLMOS (MEX)  vs CHEN Pei-Hsuan (TPE) / WU Fang-Hsien (TPE)
Not before 7pm
Heather WATSON (GBR) vs [WC] Leylah FERNANDEZ (CAN)
Varvara LEPCHENKO (USA) vs [Q] Marie BOUZKOVA (CZE)
COURT 1 (starts 12 noon)
Sofia KENIN (USA)  vs Mona BARTHEL (GER)
Naomi BROADY (GBR) / Kristyna PLISKOVA (CZE) vs Natela DZALAMIDZE (RUS) / Veronika KUDERMETOVA (RUS) 
Beatrice GUMULYA (INA) / Ana VESELINOVIC (MNE) vs Christina MCHALE (USA) / Galina VOSKOBOEVA (KAZ)