WNBL

Timms debuted in the WNBL in 1984 with the Bulleen Boomers. She joined the Nunawading Spectres in 1985 and played six seasons for the club. Between 1991 and 1994, she played for the Perth Breakers. In 1995 and 1996, she played for the Sydney Flames. For the 1998–99 WNBL season, she returned to the Bulleen Boomers.^[1] She won four WNBL championships with Nunawading and one with Perth.^[1] In the 1992 season, Timms was captain of the Breakers team that won the championship.^[2]

WNBA

At the onset of the WNBA in 1997, Timms was assigned to the Phoenix Mercury in the initial player allocation. Her debut game was played on June 22, 1997 in a 76 - 59 win over the Charlotte Sting where she recorded 8 points, 6 rebounds, 6 assists and 2 steals.^[3] Timms had a very dominant rookie season with averages of 12.1 points, 3.7 rebounds, 5.0 assists and 2.6 steals per game. The Mercury finished with a 16 - 12 record and made the playoffs but were eliminated in the semi-finals by the New York Liberty.

For the 1998 season, Timms had a drop in all of her season averages except for assists. Recording a lower average in minutes played, points, rebounds and steals than her previous season. The Mercury was still able to complete the season with a 19 - 11 record and reach the finals but lost to the Houston Comets. Timms came within inches of giving the Mercury their first title; with the Mercury up 1-0 and needing only one more win for the championship, and Game Two tied at 66 with three seconds to go, Timms took a three-point shot that bounced off the rim's back. Ultimately, the Comets won that game 74–69 in overtime, and then the championship in Game Three.

The 1998 season was 2nd and final time that Timms played in the playoffs with the Mercury. The Mercury had a losing season of 15 - 17 and missed the playoffs in 1999. In 2000, the Mercury did reach the playoffs with a 20 - 12 record, but Timms only played 8 games that season and sat out of the playoffs as the Mercury lost in the semi-finals to the Los Angeles Sparks.

Timms bounced back and played more games in the 2001 season, playing in 21 games and averaging more points and assists than the previous season. But 2001 saw the Mercury have their worst record so far of 13 - 19. Timms' final WNBA game was played on August 14, 2001 in a 56 - 38 win over the Houston Comets where she recorded 10 points, 4 assists and 2 rebounds.^[4] That very same day (as it was the final game of the season and the Mercury were officially not making the playoffs), Timms announced her retirement and almost immediately joined the Mercury's television broadcasting crew, a job which she held only for that season.^[5]

On 7 August 2002, her number 7 jersey became the first to be retired by the Phoenix Mercury, and only the second jersey ever retired by the WNBA (the first being Kim Perrot). Upon her retirement, she was the Mercury's career leader in assists.

Europe

Timms played five seasons in Europe. Her first came in 1989–90 with German team Lotus Munich. She returned to Lotus Munich in 1992–93, played for Firenze Basket in Italy in 1993–94, and then played two seasons for BTV Wuppertal between 1995 and 1997.^[1] She won the FIBA Women's European Champions Cup with Wuppertal in 1996.^[1]

National team

Timms made 264 appearances for the Australian national team. She participated in four World Championships (1986, 1990, 1994, 1998) and three Olympic Games (1988, 1996, 2000). She won Olympic bronze and silver medals (1996, 2000) and a World Championship bronze medal (1998). She was captain of the Olympic team in 2000.^[1]

Regular season

Playoffs