Olympic champion Daniel Wiffen is targeting a new world record at the Irish Swimming Championships which get underway in Dublin on Saturday.
Wiffen won the gold medal in Paris last summer in the 800m freestyle and will swim that event on the first day of competition.
However, it is the 1500m freestyle next Wednesday in which he wants to rewrite the record books.
The Magheralin swimmer won bronze at the Olympics in the longer distance as he was beaten by American Bobby Finke who became the only U.S. male swimmer to win an individual gold medal in Paris, finishing in a world-record time of 14:30.67.
"Everybody should come down to Dublin because I will be trying to break this world record that I've wanted to break ever since I started swimming," explained Wiffen.
"So I can't wait and it'll be getting done on the day. I am going to be fully rested for the Irish championships."
Wiffen just has to prove his fitness next week to be selected for July's World Swimming Championships in Singapore.
"Obviously, we're on the lead up to that. It's about how many world records I can break before we get to the World Champs.
"And then when we get to the World Champs it's about defending my two world titles in the 1500 and 800.
"We're also adding the 400 freestyle this year, so I'll be competing in three events instead of two.
"So we're going for three gold medals in the summer."
After taking a lengthy break following his Olympic success, Wiffen has ramped up his training since the turn of the year and by all accounts it is going well.
"I've come back after the Olympics and it took me a couple of weeks trying to get back into it.
"I took a two-month break so it was going to take me a while but I just recently competed in my last ever University Championships for Loughborough.
"I ended up swimming times that I'd never touched in that part of the season before, so all these signs are leading towards this world record and I really look forward to having a crack at it in Dublin."
McSharry and Hill also competing in Dublin
The Irish Championships are being used as trials for a number of events this year, including the Worlds.
As well as Wiffen, Olympic bronze medallist Mona McSharry, Olympic finalist Ellen Walshe and semi-finalists Tom Fannon and Danielle Hill, who will all compete in Dublin, have achieved initial qualification times for the World Championships in Singapore following their appearances in Paris last Summer.
Shane Ryan also achieved the time at the European Championships in June.
All swimmers will still need to compete in the same individual event(s) at the Irish Open to assure their competitive readiness and achieve a secondary consideration time.
For the World Para Swimming Championships, also taking place in Singapore, four Paris Paralympians, Barry McClements, Dearbhaile Brady, Deaten Registe and silver and bronze medallist Roisin NiRiain have ...
