The Nashoba Regional girls were able to pull off one upset in the quarterfinals of the Central Division 1 tennis tournament.

However, a second one was beyond the Chieftains’ reach.

Westborough (17-1), the No. 1 seed swept visiting sixth-seeded Nashoba (11-7) on June 7, 5-0.

But the win wasn’t easy as Ari Sanjar took her opponent to three sets, including a 6-4 final, while second and third singles went to first set tie-breakers.

The Chieftains second doubles team of Lauren vonStetten and Brianna Ankstitus also went three extended sets.

Westborough 5, Nashoba 0

Singles: 1. Isabelle Seymour def. Ari Sanjar, 3-6, 6-2, 6-4; 2. Krithi Krishna def. Kaylin Castles, 7-6(5), 6-1; 3. Camille Gimalaro def. Bella MacNeil, 7-6(3), 6-1.

Doubles: 1. Sandy Iyer-Samantha Steinberg def. Emily Boucher-Alexa Konstantinidis, 6-4, 6-3; 2. Neha Perumal-Kathryn Pelser def. Lauren vonStetten-Brianna Ankstitus, 6-4, 4-6, 6-4.