The victory was a first Grand Prix title this season for the experienced Russian, who is a two-time Olympic team gold medalist and had to settle for bronze in the season’s previous Grand Prix events in Qatar and Hungary.
Anqi was the clear favourite going into the event which was staged at the Olympic venue of Carioca Arena 3, but she suffered what appeared to be a lower back injury in her semi-final victory over Logunova’s compatriot, Olga Kochneva.
That injury seemed to have consequences with limited movement for Anqi in a final that ended 5-3 to Logunova.
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Kochneva, the world number 46, achieved her best result to date by securing a joint bronze medal with the other losing semi-finalist, Katrina Lehis of Estonia.
The Russian had successfully dispatched the world number 13 Injeong Choi in the last 32 before accounting for world number five Emese Szasz of Hungary in the last 16.
Speaking after her victory, 35-year-old Logunova said “I’m very happy and I hope to see you again in Rio at the Olympic Game.
“My coach said if you are not sure what to do, stay passive, and get your touches that way.”
In what was the final epee Grand Prix of the season for the women, there were a series of other surprise results. They included early defeats for the world number two Rosella Fiamingo and number three Violetta Kolobova of Russia.
The Rio Grand Prix is the first competition to adopt a new cross formation for the pistes, an innovation in the sport designed to provide an improved view of the action for the spectators.
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