Jon Luff smashed his personal best by more than 15lb on his first visit to a new water.
The 27-year-old latched on to this 44lb 4oz mirror just 10 minutes after casting out at Greenacres near Peterborough.
The windscreen technician from Newmarket in Suffolk was fishing with friends Dan Hadman and Adam Lowbridge, both of whom had visited the water before, but was the only one of the trio to catch.
He said: “Having not fished the place before, I went for a walk round and the only fish I saw top was in the area I fished.
“We drew straws for pegs and I decided just to fish for a bite. I fished towards some reeds on the far bank, though there was a solid weedbed in front so I had to drop short by about a rod length.
“I put about a dozen baits in and had just sorted all my rods and was sitting close to them scouring the water when I got a few bleeps. I was on it straight away and I could feel it was a fair size. My UK PB is 27lb so I was hoping for a thirty.
“When I saw it roll I thought ‘this really is a thirty’ but Dan had come round by this time and he was telling me it was definitely a forty. At that point my legs went to jelly as I still hadn’t got it in!
“It was a fantastic fish from a great venue.”
Jon used Cambridge Carp Bait’s Pickled Krill boilies and a D rig made from Korda IQ fluorocarbon and a size 6 Korda Longshank hook.