Glenn Howard capped an undefeated tournament run with a 6-5 win over rival skip Kevin Martin in the final of The Pomeroy Inn & Suites National in Dawson Creek, B.C., on Sunday.

The victory gave Howard (8-0) his second Capital One Grand Slam of Curling title of the season, and 10th of his career. Martin was denied his 18th crown.

"It's the best of the best at these Grand Slams and to win one here is unbelievable," Howard said. "I couldn't be happier, and to beat Kevin Martin is just icing on the cake."

Edmonton's Martin has a commanding lead in overall Grand Slam titles, but he missed a chance to get his 18th win and tie golfing legend Jack Nicklaus for the most major championships in any sport.

Howard jumped out to an early 3-0 lead with the hammer in the first end.

Martin came back with one in the second end to cut the gap to 3-1.

Howard restored his three-point cushion, scoring one in the third end.

Martin replied with two in the fourth to make it a one-point contest.

The two skips traded single points over the next four ends.

In the eighth and final frame, Martin needed to score a pair to force an extra, but he came up short, handing Howard the championship.

Howard took home $25,000 in total prize money ($20,000 for winning the title, plus $1,000 for each of his round-robin victories) and 40 Canadian Team Ranking System points. Martin, who also came into the final unbeaten, walked away with $16,000.

The National was the third of four Grand Slam events this season. The season-ending GP Car and Home Players' Championship will be held from April 17-22 in Summerside, P.E.I.