Callaway staffer Ernie Els rolled back the years to claim an epic Open Championship victory at Royal Lytham and St Annes on Sunday afternoon.
The 42-year-old took full advantage of a monumental collapse from overnight leader Adam Scott to win his first Major for a decade.
The South African relied on a bag full of Callaway equipment, including the new Hex Black Tour ball which launched earlier this year.
Els also used Callaway's RAZR Fit driver (8.5˚) and an X Tour fairway wood (15˚), as well as three X Utility Prototype long irons.
His excellent ball-striking was key to victory on the Lancashire coast, and the four-time Major winner also had Callaway's RAZR X Muscleback irons and X Series Jaws wedges in the bag.
Finally, the popular winner used an Odyssey White Hot XG1 belly putter to tame the tricky greens at Lytham.
Els finished on seven-under-par, one clear of Australian Scott who bogeyed each of the last four holes. Tiger Woods was three shots further adrift, ending the tournament at three-under-par, along with halfway-leader Brandt Snedeker.