Hosmar's gold in the grade five freestyle represented a third of the week at Rotterdam Arena as he topped the standings with Alphaville N.O.P on 79.900 per cent, as Sophie Wells of Britain, riding C Fatal Attraction, finished second on 78.375.

The bronze medal went to Michele George of Belgium on Best of 8 with 74.720.

Voets, atop Demantur Rs2 N.O.P, claimed the grade four freestyle title with a score of 79.720 per cent to win from Sweden's Louise Etzner Jakobsson.

Jakobsson and Zernard scored 73.775 for silver as Manon Claeys on San Dior completed the podium for Belgium with 73.355.

Voets becomes the owner of a double set of triple gold medals, having also collected three at last year's World Equestrian Games in Tryon.

"I'm happy," said Voets.

"It's hard to be the favourite and the hardest part is the pressure you put on yourself. 

"I was amazed by the atmosphere. 

"It's been an amazing week and I'm going to enjoy every second of the medal ceremony."

Elsewhere there was a gold medal for Britain's Georgia Wilson in her first major international competition, triumphing in the grade two freestyle event.

Riding Midnight, she scored 78.187 per cent to win as Austrian Pepo Puch on Sailor's Blue came second on 77.220.

Nicole Den Dulk on Wallace N.O.P took the bronze medal with 74.313.

Denmark’s Tobias Thorning Joergensen added a second gold of the week with victory in the grade three freestyle final.

Riding Jolene Hill, the 19-year old scored 79.093 as Rixt van der Horst of The Netherlands finished second on Findsley N.O.P with 77.327.

A second bronze of the week went to side-saddle rider Barbara Minecci of Belgium.

She rode Stuart and scored 73.127 per cent.

Norway's Jens-Lasse Dokkan added the grade one freestyle title to the individual gold he picked up earlier in the week, scoring 80.193 per cent on Aladdin.

Sara Morganti from Italy and Royal Delight were second with 79.273 as Latvian Rihards Snikus claimed the bronze medal on King of the Dance, with 77.387 per cent.