Katerina Boiko of Burnaby upset top seed Monica Neveklovska in the final of the 80th Stanley Park Open tennis championships Sunday.
Boiko, the fifth seed, overcame a slow start to knock off her West Vancouver opponent 5-7, 6-4, 7-5 in the open women's final.
Last year, Boiko won a second consecutive open women's tennis title at the Burnaby Open, knocking off Neveklovska, the top seed, in three sets.
The 15-year-old Boiko ran a string of upset wins en route to the Stanley Park championship final, including a straight set 6-3, 6-4 victory over No. 2 seed Anna Miguel of Spain in the semifinals.
She also outlasted fourth seed Vivian Tsui of Port Coquitlam 3-6, 6-3, 6-1 in the quarter-finals.
Boiko had little difficulty making it through to the final eight, finishing off two challengers with straight set wins.
Boiko blanked Lucy Fairbotham 6-0, 6-0 in the round of 16. She also handled Mackenzie Campbell easily in the opening round 6-2, 6-0.
Top seed Henry Choi of Vancouver won his third Stanley Park Open in the past four years, defeating No. 4 Nick Coutts of Victoria 7-6, 6-2 in the men's open division Sunday.
Coutts made amends in the men's doubles, teaming with fellow Victoria partner Patrick Flint to defeat Kris Santoso of Vancouver and Jerry Turek of Burnaby 7-6, 6-1 in the final.
Coutts also took the mixed doubles title along with Neveklovska over Justin Guay of Richmond and Miguel of Spain in straight sets.
Neveklovska and West Vancouver partner Sinziana Chis beat Kelly McNabney and Shiera Stuart of Vancouver 6-4, 6-2 in the women's doubles final.
In other results, Burnaby Tennis Club pro Glenn Richards made good on his No. 1 seeding, defeating Trevor Richards of Burnaby 6-3, 6-2 in the men's 45 singles final.
In the women's 4.5 singles, Jing Hong of Burnaby lost to Eszter Boros 6-1, 6-0 in a battle of the giant killers.
Boros knocked off top seed Carol Lau of Richmond 6-0, 6-3 in the semifinals. Hong defeated No. 2 seed Sharon Sauder of Vancouver 6-0, 6-4 in a quarter-final match.
Nicoleta Rozinbaum of Burnaby was also unfortunate in the women's 2.5 singles final, losing in straight sets to Rachael Curtis of Vancouver.
The Odlum Brown Summer Series has two more stops, including Kelowna and the city of Victoria Island Open from Aug. 10 to 14.