Warren Martin clinched the 2012 Fish 'O' Mania title at Cudmore Fishery on Saturday.
The 35 year-old project manager from Lyng in Norfolk, became the 19th Fish'O'Mania champion with a comfortable eight kilo win over his rivals.
Martin was still in the pack after two hours of fishing but a huge catch of 8.30 kilos in the fifth 30 minute period saw him shoot to the top of the leader board.
He lost the lead to Ben Emery after 3 hours 30 minutes but regained top spot after another impressive session and pressed on to victory in fishing's most prestigious event.
"I didn't come here thinking I would win it," said Martin. "After two hours I didn't think I had a chance. I saw everyone along that bank catch fish I hadn't but I didn't worry about it.
"Winning here is incredible. It's the biggest achievement I've ever had and probably always will be. I think this will sink in next week sometime as it certainly hasn't now."
Martin collected the winner's cheque of £30,000, as well as a £1,000 bonus for catching the biggest fish of the day, a carp of 5.59kg.
Sim on song
In the Ladies Fish'O'Mania match, England International Samantha Sim was on top form once again as she easily retained the title she won last year with a winning bag of 27.97kg.
That was a whopping 14 kilos ahead of her nearest rival Emma Pickering, a winner of this event in 2005, and Sim took home £1,000 and the prestigious trophy.
"I fished mainly meat, caster and hemp and managed to catch fish," she said afterwards.
Fish 'O' Mania Results
1. Warren Martin 30.67kg (Peg 4)
2. Simon Medd 21.89kg (Peg 9)
3. Andrew Geldart 20.25kg (Peg 14)
4. Jamie Hughes 20.23kg (Peg 7)
5. Chris Kendall 18.24kg (Peg 5)
6. Peter Marlow 17.91kg (Peg 11)
7. Ben Emery 17.79kg (Peg 16)
8. Rob Wootton 15.84kg (Peg 6)
9. Steve Cooke 13.53kg (Peg 8)
10. Geoff Vallance 13.49kg (Peg 1)
11. Simon Fry 13.48kg (Peg 3)
12. Stephen Tucker 12.05kg (Peg 10)
13. Mark Johnson 11.80kg (Peg 12)
14. Adam Richards 8.70kg (Peg 15)
15. Stu Ballard 7.80kg (Peg 2)
16. Shane Atkin 2.58kg (Peg 13)
Ladies Fish 'O' Mania Results
1. Samantha Sim 27.97kg (Peg 2)
2. Emma Pickering 13.94kg (Peg 1)
3. Wendy Locker 12.21kg (Peg 3)
4. Linda Cooke 6.70kg (Peg 6)
4. Nuala Gray 1.69kg (Peg 4)
6. Sonia Shaw 0.09kg (Peg 5)