PALM HARBOR, Fla. >> Keith Mitchell capped off a magnificent run through the “Snake Pit” at Innisbrook on Saturday with a shot he never saw go in. His 7-iron from the 18th fairway one-hopped into the hole for eagle and a 5 under and a two-shot lead in the Valspar Championship.

Mitchell was among a dozen players on the fringe of contention at a tournament so tight that it began with all 77 players who made the cut separated by a mere six shots.

That changed when he went 3-2-2 through the closing stretch of the Copperhead course, the first player to do that in tournament history. Mitchell holed a birdie putt just inside 15 feet on the 16th hole, hit 6-iron to inside 3 feet for birdie on the par-3 17th and then holed out on the 18th hole with a 7-iron from about 151 yards up a steep hill.

That puts Mitchell at 10-under 203, two shots clear of Mackenzie Hughes (69), Seamus Power (68) and Peter Malnati (68).

Mitchell knew the shot was good, but something flew into his eye as he followed the flight, causing him to look away and wipe away the speck. Then he heard a loud cheer, looked up and realized the ball had gone in for a most unlikely eagle.

“When I looked up, something kind of flew in my eye, so I kind of looked away and never saw it come down and land,” he said. “But I knew ... when I hit it, I was pleased with the contact.”

The 18th green is elevated, and the pin was up front behind a deep bunker, so he wouldn’t have been able to see it go in the hole, anyway. He could hear the crowd, and there was pleasant surprise on his face he couldn’t hide.

There were a few other unpleasant surprises by players who briefly had a share of the lead.

One of them was 50-year-old Stewart Cink, who began the third round in a five-way tie for the lead.

He had two early birdies and was leading through seven holes when he three-putted from 30 feet on the par-3 eighth. It only got worse from there. Cink shot 41 on the back nine for a 76, taking him from the lead to nine shots behind.

Justin Thomas birdied his first hole to get into a tie for the lead. That turned out to be his only birdie of what was an atrocious day on the greens. Thomas wound up with a 79 and was near the bottom. He took 38 putts and lost just over 7 shots to the field in the putting metric.

Mitchell, who needs a win to get into the Masters, has reason to feel the finish line feels a lot longer away than just 18 holes.

It was super packed at the start, and even with a two-shot lead, Saturday was a reminder how quickly it can change at Innisbrook and with so many players in the mix.

“No matter how well you played, it was going to be tough to get much better than 4, 5 under, I thought,” Power said. “It’s tough to get away from the pack, so it’s going to be some guys in with a chance.”

Hughes regained the lead with a 40-foot birdie putt on the 16th hole, only for Mitchell in the group ahead of him making 2 from the fairway, and then the Canadian losing his drive to the right and into the trees. That led to bogey, and just like that he was two behind.

Malnati birdied the 18th to stay in the hunt.

Jiyai Shin takes unlikely share of lead in Fir Hills Seri Pak Championship >> One of Seri’s Kids had an unlikely share of the lead in the Fir Hills Seri Pak Championship after a windy Saturday afternoon at Palos Verdes Golf Club.

Jiyai Shin — the 35-year-old South Korean star who last played a full LPGA Tour schedule in 2013 — shot a bogey-free 8-under 63 on the course overlooking the Pacific Ocean, then ended up tied for the lead hours later when defending champion Ruoning Yin closed with a triple bogey.

Pak is one of the most influential players in LPGA history, a pioneer for South Korean players to follow her path. Shin, who now plays the Japanese and Korean tours to be closer to home, received a sponsor exemption in the event.

“Seri is my idol, still,” Shin said, “When I first time playing LPGA, they called (us) Seri’s Kids. This is her first hosting event, so I feel so proud. Just glad to playing here.”