2003 National

The 2003 National, the second annual edition of The National Grand Slam curling event was held January 30 to February 2, 2003 at the Humboldt Uniplex in Humboldt, Saskatchewan. The total purse of the event was $100,000. It was the third of four (men's) Pharmassist Grand Slam events of the 2002-03 curling season.

The final featured Quebec's Pierre Charette rink against Team Glenn Howard from Ontario. The main turning point in the game came in the second end, when Howard jammed his last rock, giving up a steal of one to go down 3–0. After Howard was forced to a single in the fourth, Charette's fourth stone thrower Martin Ferland drew for three in the fourth to take a massive 6–1 lead. Team Howard didn't give up though, and chipped away at Charette's lead, and trailed 8–6 after nine ends. In the last end, Charette won the game after Ferland drew to the four foot, to cut Howard down to a single point. Team Charette took home $25,000 with the win, while Howard's rink took home $15,000. The final was aired on television on Rogers Sportsnet. As of 2023, it is the only time a team from Quebec has won a men's Grand Slam event.

Teams
The teams were as follows:

Draw
The event was held as a triple knockout tournament.

Playoffs
The playoff scores were as follows: