Seventeen-year-old Patrick Kypson survived a tough test from Ohio State sophomore JJ Wolf Sunday to capture the boys' 18s singles title at the USTA National Championships in Kalamazoo, Mich.

Kypson (pictured above), from Greenville, N.C., battled for nearly four hours and came back from two-sets-to-one down to defeat Wolf, 6-7 (1), 6-4, 1-6, 6-3, 6-2, in the five-set final.

With the victory, Kypson earned a wild card to compete in the US Open men's singles draw. He also became the first player since Alex Bogomolov in 2001 to win both the 16s and 18s singles titles at Kalamazoo. Kypson won the Boys' 16s title in 2015.

Wolf received a wild card into the US Open Qualifying Tournament for finishing runner-up. The 18-year-old from Cincinnati, who has been out of action since the NCAA Championships in May with a stress fracture in his foot, had an impressive run to the final, upsetting top-seeded Sam Riffice, 5-7, 6-4, 6-1, in the quarterfinals.

Kypson joins Rod Laver, Stan Smith, Michael Chang, Donald Young and Jack Sock on the list of Kalamazoo champions. ADVERTISEMENT The 2017 Wimbledon boys' semifinalist, who is currently ranked No. 19 in the world junior rankings, has worked with Ivan Lendl over the past several years through USTA Player Development.

In the boys' 16s division, top-seeded Brandon Nakashima, a 16-year-old from San Diego, took home the singles title, defeating No. 8 Stefan Dostanic of Irvine, Calif., 6-0, 6-1, in the final. Nakashima, who did not lose a set in the tournament, earned a wild card to compete in the US Open junior tournament with his victory.

In doubles play, top seeds Vasil Kirkov of Tampa, Fla., and Danny Thomas of Reynoldsburg, Ohio, claimed a wild card into the men's doubles draw at the US Open by defeating Kypson and Oliver Crawford of Spartanburg, S.C., 7-6 (1), 6-2, in the boys' 18s doubles championship.

No. 3 seeds William Grant of Boca Raton, Fla., and Tyler Zink of Bradenton, Fla., captured the boys' 16s doubles title with a 6-2, 6-3 final win over Siem Woldeab of La Mesa, Calif., and Eshan Talluri of San Diego. They earned a wild card to compete in the US Open boys' doubles tournament.

The 2017 US Open Tennis Championships will take place Aug. 28-Sept. 10, with the junior tournament taking place Sept. 3-10 in New York.

 

Here's a look at the complete results from the USTA Boys' National Championships:

 

USTA Boys’ 18s National Championships

Kalamazoo College, Kalamazoo, Mich., Aug. 5-13

Singles: (2) Patrick Kypson (Raleigh, N.C.) d. J.J. Wolf (Cincinnati), 6-7(1), 6-4, 1-6, 6-3, 6-2

Doubles: (1) Vasil Kirkov (Tampa, Fla.) / Danny Thomas (Reynoldsburg, Ohio) d. (2) Kypson / Oliver Crawford (Spartanburg, S.C.), 7-6(1), 6-2

 

USTA Boys’ 16s National Championships

Kalamazoo College, Kalamazoo, Mich., Aug. 5-13

Singles: (1) Brandon Nakashima (San Diego) d. (8) Stefan Dostanic (Irvine, Calif.), 6-0, 6-1

Doubles: (3) William Grant (Boca Raton, Fla.) / Tyler Zink (Bradenton, Fla.) d. (24) Siem Woldeab (La Mesa, Calif.) / Eshan Talluri (San Diego), 6-2, 6-3

 

USTA Boys’ 14s National Championships

Mobile Area Tennis Association, Mobile, Ala., Aug. 5-12

Singles: (4) Saud Alhogbani (Alexandria, Va.) d. (17) Ben Shelton (Gainesville, Fla.), 7-5, 6-3

Doubles: (1) Connor Krug / Jake Krug (Lakewood Ranch, Fla.) d. (8) Evan Lee (Cos Cob, Conn.) / Thomas Navarro (Williamsville, N.Y.), 6-1, 7-5

 

USTA Boys’ 12s National Championships

Mobile Area Tennis Association, Mobile, Ala., Aug. 5-12

Singles: (4) Lucas Brown (Plano, Texas) d. (1) Aidan Kim (Milford, Mich.), 6-2, 3-6, 6-4

Doubles: (1) Brown / Learner Tien (Irvine, Calif.) d. (2) Nicholas Godsick (Chagrin Falls, Ohio) / Kim, 7-6(8), 6-7(4), 6-4