Day's equal 9th place finish gave him leading Australian honours but was clearly not the overall finish he was hoping for after being in the mix for so much of the opening 53 holes before his closing quadruple bogey yesterday, which became the talk of the golfing world, and derailed his championship.
The Queenslander began his final round by holing a bunker shot for birdie at the 1st and the idea of something very special to get back into contention was not totally out of the question at that point.
He then failed to get up and down at the par-four third and dropped a shot although he would recover quickly by knocking his approach close at the fifth hole and converting for birdie.
Dropped shots at the 7th and 12th holes were balanced with birdies at the 14th and 15th but any hope of a miracle comeback was gone.
Day improved seven positions today to finish alongside Matt Kuchar, Jordon Smith and Chris Stroud, seven shots behind champion Justin Thomas who won by two over Francesco Molinari, Patrick Reed and Louis Oosthuizen.
Marc Leishman reeled off the equal best round of the day (67) to continue an amazing bounce-back from his opening round of 75, playing his final 54 holes in 4 under par and jumping from 47th to 13th on Sunday.
Adam Scott was the only other Australian to make the weekend and so, not surprisingly, Australia’s three leading players would be the only players to play all four rounds.
Scott put together an impressive enough final round of 71, bookending the event with such scores but most of the damage had been done with rounds of 76 and 74 on Friday and Saturday and he would finish in 61st position.
THE RULES - PUTTING FROM THE GREEN EDGE
Want video tips delivered straight to your inbox? Subscribe to iseekgolf.com newsletters.