The U.S. Junior Amateur begins with 264 players at Saucon Valley.

The championship opens Monday in Bethlehem, Pennsylvania, with stroke play on Saucon Valley's Old and Grace courses. Match play moves entirely to the 7,082-yard, par-71 Old Course.

Defending champion Hamilton Coleman and top-ranked junior Miles Russell headline the field. Japan's Riku Takase is the youngest competitor at 13, while Saturday's championship match will cover 36 holes.