Bone continued on to the USA Women's U19 team which represented the USA in the 2009 U19 World's Championship, held in Bangkok, Thailand in July and August 2009. Although the USA team lost the opening game to Spain, they went on to win their next seven games to earn a rematch against Spain in the finals, and won the game 81–71 to earn the gold medal. Bone started all nine games and was the team's second highest scorer, with 12.3 points per game.