Breen takes top prize at Millstreet
Setting the last clear in round one, Breen found himself first to go in the 10-horse jump-off.
Riding World Cruise, however, he sailed around in 44.82 seconds, a time that proved too hot for those that followed in the unseasonal rain.
Swail, who retired Conduct after a four-fault round one, brought Drumagoland Flight into the fray, but had to settle for second place when just over half a second adrift.
James Kernan, with two in the jump-off, Killybegs Schubert and Out of Touch, finished third and fourth respectively.
Swail also retains his pole position in the IJM TimberFrame League
Earlier, Auto Cruz went one better with Francis Connors when taking the ACC Bank Boomerang Finders Championship, the traditional grand prix warm-up class.
