Emily Tanner and Wyndham Clark. Image via: Gerald Herbert/ APWyndham Clark won his second U.S. Open title on Sunday at Shinnecock Hills Golf Club, closing out a wire-to-wire victory at four under par, one shot ahead of Sam Burns. The 32-year-old's win came three years after his first major triumph at the Los Angeles Country Club, and it doubled as a Father's Day celebration after his dad, Randall, surprised him by flying in overnight from Denver.Just as much attention this week went to Clark's girlfriend, Emily Tanner, who has become a fixture in his gallery since the couple went public in April. Their relationship has tracked closely with one of the best stretches of Clark's career.Who is Wyndham Clark's girlfriend Emily Tanner? Emily Tanner. Image via: emilyytanner/ InstagramEmily Tanner is a 31-year-old Metro Detroit native who graduated from Michigan State University with a degree in public health. She later built a career as a social media influencer before co-founding Over Social Agency, an influencer marketing company she runs out of California, with clients that have included the Big Ten Conference, Hyundai, and Celsius.Clark and Tanner made their relationship public during Masters week in April, when Tanner caddied for him in the tournament's traditional Par 3 contest and the pair were photographed holding hands along the fairways at Augusta National. Clark called her his "good luck charm" at the time, a label that has only gained weight since.Clark's game turned a corner almost immediately after that. He won the CJ Cup Byron Nelson in Dallas the following month, snapping a winless drought of more than two years on the PGA Tour, then carried that momentum into a dominant week at Shinnecock Hills.Tanner has been a constant presence in the gallery throughout, posting support on social media and drawing her own following along the way, thanks to an Instagram audience of more than 730,000 people.Emily Tanner reacts to Wyndham Clark's U.S. Open winTanner posted "Proud x1000" to her Instagram story ahead of Sunday's final round, then was on hand to celebrate with Clark in person once he closed out the victory over a frustrating, error-filled back nine that nearly cost him a six-stroke lead. The two were seen kissing in photos after the win, echoing a similar celebration last month following his Byron Nelson title.Emily Tanner posted on Instagram following Wyndham Clark's win. Image via: emilyytanner/ Instagram Following the win, she shared a photo of Clark holding the trophy and wrote, "MY WYNERRRRR !!! @wyndhamclark."Clark's father watched it all unfold in person after his red-eye flight, while Clark also leaned on caddie David Pelekoudas and longtime mental coach Julie Elion during a final round that tested his composure as much as his swing.Scottie Scheffler, who entered the week chasing the career Grand Slam, finished four shots back in a tie for third alongside Keith Mitchell and J.T. Poston, while Tom Kim took third on his own. Clark now heads to the Rocket Classic next month in Detroit, Tanner's home state, with a second major title and a relationship that has quietly become part of the story of his comeback season.