The medal flurry means GB achieved a remarkable twelve medals across the four days of racing.
Siblings Lois Leaver (U23 women's) and Sam Leaver (U23 men's) battled to silver in their respective kayak cross head to head finals, whilst Kontchakov rounded off the last day with her second silver medal on Sunday.
After winning the individual U23 kayak cross title on Friday, Lois Leaver (Edinburgh Schools) continued her rich vein of form to win head-to-head silver in the women's final.
Becoming women's slalom kayak World Champion last month in what was her first international medal as an individual, Leaver was nicely placed in second place after the first upstream of the final.
Tactically avoiding the trouble on the final gate, Leaver managed to fend off a late charge from Tereza Kneblova (Czechia) to finish in the silver position and secure medal number two of the European Championships.
She said:
“I'm so happy. Head-to-head racing is really tough and hard to know what's going to happen. I'm really happy with this result.
“It's the first time I've had success in kayak cross so it's such a good feeling. The gold in the individual gave me confidence off the ramp. I had lane choice in every round which carried me through to the end.
“I'm looking forward to the final two races of the season with the World Cups and would love to continue the success that I've had.”
Leaver's brother Sam (Edinburgh School) enjoyed the same success as he battled hard to win silver in the U23 men's kayak cross final.
The 20-year-old won the U23 World title in Krakow last season, and started this final impressively, shrugging off two competitors around the first upstream gate.
Sat in second behind Miquel Farran, the Scottish athlete opted for a separate final upstream to the race leader, which nearly propelled him to gold, but the Spanish paddler managed to just get out of his upstream in time to retain his lead.
With the other two paddlers faulting, Leaver eased over the line to take silver.
He said:
“I'm so happy to win another medal. It wasn't the cleanest final and it was hard to make decisions that weren't full-on contact. I think I did really well on the first up to make sure I came away with a silver medal.
“I had eyes on winning this after finishing second in this competition last year, but a silver I'm super happy with. Great result.
“I've raced three lots of head-to-heads at U23 and won a medal every time so very happy with that consistency.
“I've got three more years at U23 level, so hopefully I can keep battling up at the top. I'm also looking to pair this with some canoe slalom success, which is hopefully around the corner.
“It's a fantastic day for the family with Lois also medalling. My Gran came out from Edinburgh so it's cool she got to see us win four medals between us.”
Two Brits featured on the start line for the Junior men's kayak final. Gwion Williams (Llandysul) was up first having finished 7th in the semi-finals. Still in his first year competing internationally, Williams had a clean and quick run which saw him storm down the course into 6th place with six boats to go. After the final run down he sat in 10th position, just beating out team mate Wyllie. He posted a time of 94.35.
Oscar Wyllie (Breadalbane) was fifth in the semifinals and also had a clean run in his final. 96.33. Crossed the line in 7th but ultimately finished in 11th position in the final.
Well done to all!