Maybe it's just one round, but Thursday at The Open, 50-somethings Lee Westwood and Phil Mickelson shot under par.

Phil Mickelson was flying high on Thursday at Royal Portrush, posting a solid 1-under 70 at the opening round of the 153rd British Open.

Watch as Phil Mickelson delivers magic Thursday at the Open Championship, holing out of the sand from 75 feet away for an unlikely par.

Phil Mickelson and Lee Westwood are offering reminders that the British Open doesn't discriminate against older players.

Phil Mickelson handed out a signed glove and ball to his playing partner Ryan Peake after the pair competed alongside each other in the opening round of The Open Championship. Peake played his way into The Open after winning the New Zealand Open earlier this year.

Mickelson, who has won the Masters three times, the PGA Championship twice, and The Open once in 2013, displayed his sportsmanship on Thursday after responding to a request from a peer. His long-time caddie, Jim 'Bones' Mackay, fondly recalls Mickelson's triumph at The Open as "probably my favorite day" in their shared golfing journey.

Phil Mickelson recorded his best opening round at an Open Championship since 2016 on Thursday at 1-under 70, and he had one of the most impressive highlights of the day.

55-year-old Mickelson shot a 1-under 70, carding his best start at the Open since 2016. The six-time major champion is just three shots off the lead. His round included a score of 2-under on the front nine while showing off the short game that made him famous. He holed out from the bunker on the third hole for par.