At 16, Victoria Duval of Boca Raton, Fla., is signing autographs and basking in the warmth of attention and curiosity befitting a United States girls 18-and-under champion and wild-card entrant in the United States Open women's singles championship.
Chand was a national champion by the time she was 16, when she became the country's 18-and-under champion for the 100-meter race in 2012.
Gold medalists have included Alex Lenderman (the under-16 champion in 2005), Daniel Naroditsky (under-12 in 2007), Steven Zierk (under-18 in 2010) and Awonder Liang (under-8 in 2011).
As a teenager, Trump became the English Under-13 and Under-15 champion and, at the age of 14, the youngest player to make a competitive 147 - beating O'Sullivan's 1991 record.
In 1999, David began to win major junior tournaments, including the British Junior Open (Under-17 champion), the German Junior Open (Under-19, Champion), the SEA Games (Champion in the Senior and Team categories), and the Asian Junior Champion for both individual and team events.
Daniel Naroditsky of California, who was the under-12 champion last year, finished ninth in the under-14 section.
In the last five years, two Americans have won world youth championships: Daniel Naroditsky, who took the under-12 title in 2007, and Steven Zierk, the under-18 champion last year.
Kayden, who was born in 1998, is the under-14 champion, and Samuel, who will turn 12 next month, won the under-12 title.
Steven Zierk, an international master who was the world under-18 champion in 2010, and Daniel Naroditsky, an international master who won the under-12 world championship in 2007, also play.
The 2012 World Under-23 champion, added: "I would never, ever have dreamt that a year on from winning World Under-23 I would actually be in a position to win the title overall.
In 2005, Lenderman was the world's under-16 champion.
