The 2003 LG Cup was a professional ranking snooker tournament that took place between 4 and 12 October 2003 at the Guild Hall in Preston, England. Mark Williams won the 15th ranking title of his career by defeating John Higgins 9–5 in the final. In the 11th frame of the final, Higgins made his 3rd maximum in professional competition. Chris Small came into the tournament as defending champion, however he lost 5–3 to John Parrott in the quarter-finals.

Tournament summary

Defending champion Chris Small was the number 1 seed with World Champion Mark Williams seeded 2. The remaining places were allocated to players based on the world rankings.

Prize fund

The breakdown of prize money for this year is shown below:

Main draw

Final

Qualifying

Qualifying for the tournament took place between 4 and 18 September 2003 at Pontin's in Prestatyn, Wales. Best of 9 frames

Century breaks

Qualifying stage centuries

Televised stage centuries