Shannon Soul's late lunge in the www.dundalkstadium.com Handicap completed a double for Michael Halford and was part of a treble for Shane Foley.
The 11-4 market leader was last of the seven runners and under a strong Foley drive two furlongs from home, apparently going nowhere.
Split The Atom swept to the front and looked set for victory, but Foley hadn't given up and Shannon Soul finally hit top gear down the outside to get the verdict in a photo.
The brace for Halford began when Vincy justified strong market support in the Crowne Plaza Dundalk Race & Stay Package Median Auction Race.
Second on his debut here three weeks ago, the 5-4 favourite showed a decent turn of foot and then stayed on well to dispose of Shes Ranger by a length, with the promise of more to come.
Foley's three-timer was completed by Shabra Emperor in the Irishinjuredjockeys.com Handicap.
Khabaray had to wait until his 12th outing but broke his duck in the Happy St. Patrick's Day Handicap.
The 7-2 favourite had a wall of horses in front of him but Ross Coakley was patient and when the gap appeared, Richard O'Brien's gelding shot through to account for Settle For Red by three-quarters of a length.
Mainicin produced a career-best performance to defy top weight in the Light Up Your Night At Dundalk Stadium Handicap.
Jim Bolger's 5-1 chance reeled in long-time leader Venezia inside the final furlong and held on to score by three-quarters of a length from Ligeti.
The Bolger-trained Locus Standi (9-2) hadn't been seen since October but this appears to be his time of year and he made a successful reappearance in the Follow Us On Twitter Handicap in the hands of 10lb claimer Gavin Ryan, who was having his first ride.
He's Our Music (3-1) held off fellow eight-year-olds Catchy Lass and Elusive In Paris in the Dundalk Stadium Business Club 2017 Claiming Race, while Lady Rosebud (9-2) proved too good in the Follow Dundalk Stadium On Twitter Handicap.