Henrik Stenson produced one of the great final-round performances toovercome Phil Mickelson in a sensational battle andwin his first major title at the145th British Open.Thirty-nine years after the famous "Duel in the Sun"at Turnberry thatsaw Tom Watson Mitch Williams Jersey and Jack Nicklaus surge clear of the field before the former prevailed by a stroke,fans were treated toanother two-way tu sle for the Claret Jug that willlive long in the memory.MORE: Mickelson chasing his second Open title and sixth major was able to keep pace with Stenson for much of a thrilling Sundayat Royal Troon, the lead changing hands with regularity as both men excelled to leave the rest of the field trailing in their wake.Yet theSwedeultimately prevailed by threeshots with a record-breaking Open total of 20 under,aftermakinga remarkable 10birdies in a final round thatranks alongside the best in major history.Stenson, second to Mickelson in the 2013 Open, can finallycelebrate afirst major succe s at the age of 40, having become the fourth succe Drew Hutchison Jersey sive first-time winner in golf's premier strokeplay events.Mickelson, who came within a hair's breadth of carding a record-equaling 62 in round one, couldhardly have done more to avoid an11th runner-up finish in majors, his own round of 65bettered Jim Bunning Jersey only by the champion on Sunday.The final pair's dominance was summed up by the fact Mickelson finished 11strokes clear of J.B. Holmes in third, with Steve Stricker (-5) rounding out the top four ahead of Rory McIlroy, Sergio Garcia and Tyrrell Hatton.Mickelson set the tone by birdieing the first hole to reclaimthe leadas his playing partner made bogey.However, Stenson responded superbly, picking up shots atthe next three holes to reach -14, a mark matched by Mickelson courtesy of a spectacular eagle on the fourth.The birdies continued to flow for both menover the remainder of the front nine, Stenson hitting the turn with a one-stroke advantage after hemade birdie at the Postage Stamp and saw Mickelson mi s a shorter putt for a two.Mickelson was able to follow his rival in for birdie at 10, aftereach hadturned in 32,and found himself back in a share of the lead when Stenson three-putted for bogey atthe Jake Arrieta Jersey tough 11th.A spectacular par save at the 12th, for the second day in succe sion, kept Mickelson on level terms, yet Stenson was soon back ahead, a mid-range putt on the short 14thsecuring his seventh birdie of the day.When he followed that up with a monster birdie putt from off the 15th green, there were two shots Jimmy Foxx Jersey between the leaders for the first time.And although Mickelson came agonizingly close to an eagle at 16, Stenson was not to be denied as he picked up two further shots including a fitting gain at the last to complete a remarkable performance.