[1] Gillom signed with the Mercury in 1997 where she was All-WNBA in 1999 and won the Kim Perrot Sportsmanship Award in her final season.

Gillom became the head coach of the Xavier College Preparatory High School basketball team in Phoenix, Arizona in 2004.

In March 2024, Gillom led her high school team, the Xavier College Preparatory Gators to win their first-ever WBB championship against defending champs the Desert Vista Thunder.

The team trailed by 18 points at one time, mounted a comeback attempt but fell short, losing 87–81.

This time, the USA team would meet the USSR in the title game and emerge victorious, winning the gold medal with a score of 108–88.

[5] Gillom was named to the team representing the US at the 1987 Pan American Games, held in Indianapolis, Indiana in August.

[1] Gillom was named assistant coach of the USA National team in preparation for competition in the 2010 World Championships and 2012 Olympics.

Several players shared scoring honors, with Swin Cash, Angel McCoughtry, Maya Moore, Diana Taurasi, Lindsay Whalen, and Sylvia Fowles all ending as high scorer in the first few games.

The USA team had only a five-point lead at halftime, which was cut to three points, but the Czechs never got closer, and went on to win the championship and gold medal.

She was assigned to the Phoenix Mercury and her debut game was played on June 22, 1997 in a 76 - 59 win over the Charlotte Sting where she recorded 4 points, 5 rebounds and 2 assists.