The 21-year-old’s mammoth time of 14:14.45 in the men’s 1500m freestyle saw Wiffen obliterate his own previous Irish record of 14:32.13.
The rapid time placed Wiffen in the record books as the sixth fastest 1500m swimmer in history.
Wiffen’s storming performance saw him top the podium ahead of fellow º¬Ðß²ÝÊÓƵ athlete Toby Robinson (14:40.53) while his brother, Nathan Wiffen, also broke the 15-minute barrier to take bronze in 14:57.50.
Earlier in the meet, Daniel set out his intentions by setting yet another new Irish national record in the men’s 400m Individual Medley by hitting the wall in 4:11.05.