The quarterfinals are set for the USTA Winter Nationals, with both No. 1 seeds in the Girls 18s and G16s falling in fourth round play today in Scottsdale. No. 10 seed Mia Horvit, who you will notice in the list below is a wild card recipient, defeated top 18s seed Jessie Aney 7-5, 7-5 and will meet No. 5 seed Sara Daavettila in Wednesday's quarterfinals. No. 4 seed Star Makarome plays No. 12 seed Emma Higuchi, No. 6 seed Rebecca Weissmann, another wild card, plays No. 11 seed Gabby Pollner and the only unseeded player remaining in the G18s, Elizabeth Profit, faces No. 2 seed Kelly Chen.
Top girls 16 seed Grace Joyce was beaten today by No. 9 seed Alyvia Jones, who will play No. 15 seed Elysia Bolton in the quarterfinals. No. 4 seed Chiara Lommer faces Victoria Emma, a No. 17 seed, in the other quarterfinal in the top half. In the bottom half, No. 6 seed Samantha Martinelli plays unseeded Nicole Mossmer and No. 8 seed Carson Branstine takes on No. 2 seed Morgan Coppoc.
Both No. 1 seeds in the boys 16s and 18s have reached the quarterfinals. Boys 18s top seed Jacob Hansen, a wild card, will play No. 8 seed William Genesen with No. 3 seed Eric Rutledge taking on Andrew Heller, a No. 17 seed. No. 6 seed Korey Lovett plays No. 11 seed Zeke Clark in the bottom half, with No. 7 seed Gianni Ross facing the only unseeded 18s player remaining Alafia Ayeni.
Top boys 16s seed Jacob Brumm, who has lost only eight games in his first four wins, takes on No. 13 seed Joshua Marchalik in the quarterfinals, while No. 3 seed Jake Van Emburgh faces No. 15 seed Noah Makarome. In the bottom half, No. 4 seed Timothy Sah plays Austen Huang, a 17 seed, and No. 5 seed Jason Liu goes up against No. 2 seed JJ Wolf, who has lost only nine games in his first four matches.
Complete results in the 16s and 18s, including for doubles, which are into the semifinals, can be found at the TennisLink site.
In the 12s, played in Tucson, No. 1 seeds Aidan Mayo and Gabriella Price have reached the quarterfinals, as have top 14s seeds Marlee Zein and Brandon Nakashima. Draws are available at the TennisLink site.
As referenced above, I received the list of wild cards granted for the tournament today and am including it below.
*not among tournament competitors