Fennelly served as an assistant coach of the
U18 team representing the US at the 2008 FIBA Americas U18 Championship for Women in
Buenos Aires, Argentina. The USA team won all five of their games, including the championship game against the host team, Argentina. The team won the final game 81–37 to claim the gold medal. Fennelly continued his position as an assistant coach as the U18 team became the
U19 team, and competed in the
FIBA Women's U19 World Championship. The USA lost the opening round game against Spain 90–86, but then went on to win their next eight games. In the quarterfinals, the USA team faced France, which held an eight-point lead late in the second half, but the USA team took back the lead and won by eleven to advance to the semifinals. After beating Canada in the semifinals, they had a rematch against Spain, for the championship. This time the USA jumped out to an early lead, with a score of 33–16 at the end of the first quarter. The USA went on to win 87–71 to win the gold medal. Fennelly was named the head coach of the USA representative to the 2011 World University Games (also known as the
FISU World University Games) which were held in
Shenzhen, China. The USA team won all six games, behind the scoring leadership of
Elena Delle Donne who scored almost 16 points per game. Although the championship game was against Taiwan, the closest contest was the semifinal game against Australia. That game remained close until the fourth quarter, when a 9–0 run extended the margin and helped secure the 79–67 victory. ==Personal==