Justin Rose holed a huge putt on the last green at Royal Lytham to secure his second sub-par round of Open week, then vowed "I'll win this title one day."

The Hampshire golfer, 21 next week, specialises in big finishes. Who can forget his wonderous chip to take fourth place at Royal Birkdale?

The huge west Lancashire galleries are passionate about their golf and certainly haven't forgotten it. The youngster got rapturous reception when he walked onto the last green yesterday lunchtime looking at a 20-foot putt for a round of 70 and a one over par total for the championship.

When the ball disappeared down the hole there was a roar from the rapidly filling grandstands around the 18th.

The final round by Rose contained six birdies and moments of true brilliance. It was scarred though, by a triple bogey seven at the third and five very makeable putts which Rose didn't put away.

That really was the story of his week. Rose summed up: "I putted well on the first day but didn't keep it going if I had, I'd have been in contention because I drove well from day one.

"The fairways are pretty daunting when you look at them from the tees, but usually I was threading it through the middle."

The putting stats told the story of a week of missed opportunity. Rose took 20 putts on the first day, 30 on the second and 36 on the third when he finally tumbled off the leaderboard.

Ken Rose, father and coach, of the Hampshire player said: "Thirty six putts equates to six missed shots and that's a lot at this level."

Rose promised a low score on the last day and started like a train, rattling in a 25-feet birdie putt at the first.

He drilled his approach to the second green to within five feet of the pin but missed the putt.

A temporary set-back it seemed, but he suffered a crunching body blow at the next where he pulled his drive into a fairway bunker, screwed his next shot onto the grassy bank flanking the green, then took three more putts to get down.

That seven left him four over for the championship. World class pitching and chipping presented him birdies at the fourth, seventh and eighth holes.

He reached the turn in level par figures but it had been an enthralling helter-skelter ride of four birdies, a triple bogey and a bogey at the sixth, the first of the par fives where he again paid the cruel penalty that this course exacts for missing a fairway.

Rose's back nine was far more assured and controlled - two ten-feet putts for birdie at 11 and 16 tarnished only by a bogey five at the 15th where he missed a four-footer to save par.

His father pointed out: "There were times when he played some superlative shots. Take away the triple bogey and a few short putts that got away and he would have got himself back on the leaderboard."

Justin Rose added: "I've got to raise my concentration levels and become a more consistent putter if I am to be a winner. But believe me, I'll do it - I'll win this great title one day."