2002–03 NBL season

The 2002–03 NBL season was the 25th season of competition since its establishment in 1979. A total of 11 teams contested the league.

Regular season
The 2002–03 regular season took place over 22 rounds between 2 October 2002 and 1 March 2003.

Round 1
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 2
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 3
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 4
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 5
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 6
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 7
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 8
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 9
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 10
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 11
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 12
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 13
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 14
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 15
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 16
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 17
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 18
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 19
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 20
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 21
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Round 22
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Ladder
''1Sydney Kings won Head-to-Head (2-1). ''

Qualifying Finals
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Semi-finals
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

Grand Final
!width=90| Date !width=180| Home !width=60| Score !width=180| Away !width=260| Venue !width=70| Crowd !width=70| Boxscore
 * - bgcolor="#CCCCFF" font size=1

NBL awards

 * Most Valuable Player: Chris Williams, Sydney Kings
 * Rookie of the Year: Gary Boodnikoff, Sydney Kings
 * Best Defensive Player: Glen Saville, Wollongong Hawks
 * Best Sixth Man: Stephen Black, Perth Wildcats
 * Most Improved Player: Matt Burston, Perth Wildcats
 * Coach of the Year: Ian Stacker, Townsville Crocodiles