No. 1 and No. 2 Seeds Absent in USTA 18s Winter Nationals Quarterfinals: Delays at 12s and 14s Winter Nationals; ATP Cup Kicks Off Season in Australia

A day after both No. 1 seeds lost in the USTA Winter Nationals 18s divisions, the No. 2 seeds exited in today's fourth round, with unseeded Arina Oreshchenkova defeating Ariana Pursoo 6-4, 6-4 to reach Saturday's quarterfinals.

In boys 18s fourth round action today, unseeded Dylan Tsoi took out No. 2 seed Bjorn Swenson 6-7(3), 7-5, 7-5.

Below are the quarterfinal matchups for Saturday in the 16s and 18s divisions in Lake Nona.  The 12s and 14s in Tucson are behind schedule due to weather, and at 5 p.m. Eastern today a notice on the PlayTennis website announced that no more matches would be put out today.

B16s:

Ari Cotoulas[1] v Krish Arora[14]

Andrew Ena[4] v Asror Ismoilov[34]

Lucas Coriaty v Vincent Yang[15]

Jackson Caldwell v Mitchell Lee[2]

B18s:

Nikita Filin[21] v Nicolas Kotzen[23]

Ryan Torres[16] v Douglas Yaffa

Emon Van Loben Sels[14] v Landon Ardila[9]

Lucas Brown[18] v Dylan Tsoi

G16s:

Claire An[19] v Emily Deming[11]

Natasha Rajaram[4] v Pearlie Zhang[13]

Alyssa Ahn[27] v Taylor Goetz[22]

Tianmei Wang[32] v Sophia Webster[15]

G18s:

Piper Charney[26] v Ann Guerry[6]

Anushka Khune v Ava Bruno

Katie Codd[7] v Caroline Driscoll[31]

Arina Oreshchenkova v Tsehay Driscoll

As you can see, only half of the quarterfinalists are seeded in the girls 18s, a particularly poor showing considering there are 32 seeds in the 128 draw. The boys 16s is the only one of the four draws in Lake Nona that still has a No. 1 or No. 2 seed in contention in the quarterfinals.

What has to be one of the shortest off-seasons for tennis ever is over as of Saturday, with the ATP Cup team event kicking off in  Australia.

The USA team, which consists of Taylor Fritz, John Isner(Georgia), Brandon Nakashima(Virginia) and Rajeev Ram(Illinois), plays Canada Sunday in Sydney. For more on the USA's group, see this article from the ATP.