(D)：Difending Champion
| Date | Championships | Course | Venue |
| 4/1 – 4/3 | 9th Four Nations Team Championship | Christchurch Golf Club | New Zealand |
| 7/9 – 7/11 | 25th Queen Sirikit Cup Amateur Ladies Asian Invitational Golf Team Championship | Woo Jung Hills Country Club | Korea |
| 7/15 – 7/18 | 36th The 2003 Callaway Golf Junior World Golf Championship 15-17 Boys Division | Torrey Golf Course North Course | United States of America |
| 7/15 – 7/18 | 36th The 2003 Callaway Golf Junior World Golf Championship 15-17 Girls Division | Torrey Golf Course South Course | United States of America |
| 7/23 – 7/24 | 3rd The Neighbors Trophy Team Championship Men’s | Ora Country Club | Korea |
| 7/23 – 7/24 | 3rd The Neighbors Trophy Team Championship Women’s | Ora Country Club | Korea |
| 9/2 – 9/5 | 21st Nomura Cup Asia-Pacific Amateur Golf Team Championship | Links Golf Club | Australia |