Jack Fagan, 21, said: "It was awesome to make the final in such a tough field. It was neat that dad and I got to shear in a final, together, side by side.
"Thoroughly looking forward to the next one!"
The final was won by Welsh shearer Gareth Daniel, a rare UK win in the event with David Fagan having won the title 10 times, including four since 2005, and New Zealand team member Rowland Smith having won in 2011.
It wasn't held last year when one of the wettest UK winters on record forced the cancellation of the last two days of the show.
Hawke's Bay and Cornwall based Northland shearer Matt Smith was third, but brother Rowland failed to come close to emulating his 2011 success when he and fellow New Zealand team member, Tony Coster, from Mid-Canterbury, were eliminated in the heats.
But that duo compensated by completing a 2-0 Elders Primary Wool Tour test-series win over England in the other big shearing feature of the show.
It was close, with the pair beating English shearers Adam Berry and Antony Rooke by just a tenth of a point.
Smith recorded the fastest time in the 20-sheep international, beating Berry off the board by 9 seconds, and also had comfortably the best pen quality points.
Rowland Smith and Coster, along with the Fagans and a small number of other New Zealand shearers working and competing in England, now head for a test against Ireland at the Rickamore Shears in Ireland on Saturday, before a four-test series against Wales.
Results:
International (20 sheep): New Zealand 117.85pts (Rowland Smith 15min 10s, 55.45pts; Tony Coster 16.17, 62.4pts) beat England 117.95pts (Adam Berry 15.19, 57.7pts; Antony Rooke 15.41, 60.25pts. New Zealand win test series 2-0.
Open final: Gareth Daniel (Wales) 1, David Fagan (Te Kuiti, New Zealand) 2, Matt Smith (Ruawai and Hastings, NZ) 3, Jack Fagan (Te Kuiti, NZ) 4, Adam Berry (Cumbria, England) 5, Richard Jones (Llangollen, Wales) 6.