Top Juniors Share Court Pedigrees

Photo Brandon Holt, right, and Riley Smith in the junior boys’ doubles final. Holt is the son of Tracy Austin, who won the Open twice as a teenager. Smith is the son of the Southern California men’s tennis coach, Peter Smith. Credit Chang W. Lee/The New York Times For two American boys who reached junior finals at the United States Open, playing tennis was simply going into the family business.

The top seed in the boys’ singles draw, Taylor Harry Fritz, who won the final, 6-2, 6-7 (4), 6-2, over his fellow American Tommy Paul, is the son of Kathy May Fritz, a three-time Grand Slam quarterfinalist who reached the WTA top 10. Fritz became the third straight American boy to win a junior Grand…