Hungary's Jonatan Vadnai and Maria Erdi took the overall and female titles at the Byte CII World Championship in Newport, USA after 13 races.
Two races on the final day shook up the fleet with some of the lower end getting their best results so far with 6-7 knots of breeze filling in after fog postponed the start.
Whilst there was some shake up in the overall fleet the top three remained the same with Vadnai taking the top honours followed by Henry Marshall (USA) and Croatia's Pavle Zivanovic.
The Hungarian had conservative finishes on the final lead of a fourth and ninth which only extended his lead as Marshall came through with a tenth and a 16th. The Croatian was the stand out sailor of the day taking two seconds but Marshall had put enough space in between him and Zivanovic in advance as the Croatian settled for bronze.
All three qualified their nation to the Nanjing 2014 Youth Olympic Games with the two further places going to Singapore Bernice Chin who came through in fourth and Canada's Justin Vittecoq who finishes sixth, behind female victor Erdi.
Erdi trailed the Netherlands' Odile Van Aanholt after 11 races with the Hungarian six points behind with two races remaining.
Van Aarnholt topped the regatta for the first 11 races but, on the last day, had her lowest scores of the week with a 26th and an 18th. This dropped her lead she carried into the day to give the World's female title to Maria Erdi of Hungary but good for a solid second place finish and a place in Nanjing.
Erdi sailed exceptionally well and was the only female in the top five overall to have race results in the top 5 with 1, 3, 3, 4, 5 finishes.
Cecilia Wollmann of Bermuda maintained her third place amongst the women and Samantha Yom from Singapore held on to fourth. Florence Allan of Cayman started the day in the fifth qualifying spot but had a couple of poor finishes and Celeste Lugtmeijer from the Dominican Republic slipped into the spot.
Youth Olympic Games Qualification
The 2013 Byte CII Worlds is the first qualification regatta for the 2014 Youth Olympic Games to be held in Nanjing, China with five places up for grabs.
Competitors representing the top five countries in each fleet shall qualify that country to compete in the boy's and girl's one person dinghy events.
To qualify their country a competitor shall be born between 1 January 1998 and 31 December 1999.
In the boy's event the first qualified nations are: Hungary, USA, Croatia, Singapore and Canada and in the girl's event they are: Hungary, Netherlands, Bermuda, Singapore and Dominican Republic.
Final Results - Top Three
1. Jonatan Vadnai (HUN) - 24pts
2. Henry Marshall (USA) - 43pts
3. Pavle Zivanovic (CRO) - 56pts
1. Maria Erdi (HUN) - 94pts
2. Odile Van Aanholt (NED) - 110pts
3. Cecilia Wollmann (BER) - 151pts