After six straight birdies on Grand National's rain-softened Lake Course, the 38-year-old player from IN player missed a 12-foot birdie putt on the par-3 17th.
First-round co-leader and World No. 258 Cameron Tringale orchestrated a 4-under-par 32-35=67 in the third round of the Barbasol Championship, falling three spots to solo 5th on 15-under 198, four short of 54-hole leader Scott Stallings, who shot 60.
Ultimately he settled for an 11-under 60 in the second round of the PGA Tour event in Alabama.
"It was an awesome day", Collins told PGATour.com after posting a 15-under 127 total for a four-stroke halfway lead over fellow Americans Grayson Murray and Cameron Tringale.
Arjun Atwal grabbed two crucial birdies on the backnine in a one-under second round to make the cut at the Barbasol Championship, here. And then the putt was a little tricky.
"I didn't really strike my approaches that well in the middle of the round, so getting the ball up-and-down a few times was key to keeping the momentum", Flores said.
"And then on 18 I just got myself out of position off the tee, which you can't do, and probably one of the easiest hole locations on the green, so it was kind of unfortunate to not hit the fairway and I probably would have had a better look at birdie there".
Collins, who has posted just a single top-10 finish all year, is now down in 170th spot in the FedEx Cup standings having survived only five 36-hole cuts this season. "I wonder what took me so long to get back to it but it was nice to see some putts go in". "Hit a great shot on 17 but my putting ran out of steam". The two-time Web.com Tour victor had missed five straight cuts and 11 of 12.
"I've gained a little bit of confidence ball-striking wise and I've gained in confidence with the putter".
"Obviously, Chad, I mean, what, 60 today?"
Brian Gay (63) and David Hearn (65) are joint fourth at 10-under while New Zealander Steven Alker (67) sits six shots off the pace in a share of sixth.