Courtesy: Princeton Athletic Communications Melissa Saiontz gained a spot in the singles semifinals.

WEST HAVEN, Conn. -- Melissa Saiontz and Hilary Bartlett each won two singles matches Monday to advance to the semifinal round at the ITA Northeast Regional at Yale.

Saiontz, a 17th seed, defeated Stevi Petrelli of Yale and 13th-seeded Kristin Norton of Harvard to earn a semifinal spot against second-seeded Holly Cao of Harvard at 10:30 a.m. Tuesday. In the other semifinal will be fifth-seeded Bartlett, who knocked off 17th-seeded Jillian Santos of Binghamton and another 17th seed, Magdalena Ploch of Massachusetts, to earn a match against ninth-seeded Casey Herzberg of Brown at 10:30. A potential all-Princeton final would take place Tuesday afternoon.

Princeton's two doubles teams ended the day with a 1-2 record for Monday's play, with Rachel Saiontz and Monica Chow bowing out in the quarterfinals and top-seeded Bartlett and Taylor Marable advancing before losing in the semifinals.

Princeton's complete results from Monday and schedule for Tuesday are below.

Singles draw | Doubles draw

Monday's results/Tuesday's schedule

Singles
Fourth Round
(5) Hilary Bartlett (Princeton) def. (17) Jillian Santos (Binghamton), 6-2, 2-6, 6-2
(17) Melissa Saiontz (Princeton) def. Stevi Petrelli (Yale), 7-5, 6-2

Quarterfinals
Bartlett def. (17) Magdalena Ploch (Massachusetts), 3-6, 7-5, 6-4
M. Saiontz def. (13) Kristin Norton (Harvard), 6-3, 6-1

Semifinals
M. Saiontz vs. (2) Holly Cao (Harvard), 10:30 a.m.
Bartlett vs. (9) Casey Herzberg (Brown), 10:30 a.m.

Doubles
Quarterfinals
(1) Bartlett/Taylor Marable (Princeton) def. (6) Alex Kelleher/Olga Khmylev (Boston College), 9-7
(2) Bianca Aboubakare/Herzberg (Brown) def. (8) Monica Chow/Rachel Saiontz (Princeton), 8-5

Semifinals
(7) Brook/Stephanie Kent (Yale) def. Bartlett/Marable, 8-3