Peter Burling and Blair Tuke will take a 12-point lead into the final day of the 49er world championships as they attempt to make it three consecutive world titles.
Recently named the World Sailor of the Year, Burling and Tuke are in a good position to extend their unprecedented winning streak in the Olympic skiff class. Victory in Argentina would make it 23 consecutive wins in the 49er class.
After no racing was possible on day four of the regatta, an early start was scheduled for day five and both the men's and women's (49erFX) gold fleets sailed four races each, but not without light wind interruptions.
"It has been a really long day on the water," Burling said. "We got one race off before a three-hour delay then into the final three races."
Time spent racing and training in Argentina in the lead-up to the world championships has paid off. Burling and Tuke were second in the day's first race before placing 15th, ninth and first in the remaining races.
"Today was some of the shiftiest racing we have done in a long time - huge gains and losses," Burling said. "We were pleased to come away with a solid enough day, all things considered."
Spanish brothers Federico and Arturo Alonso closed the gap on Burling and Tuke with four good races today.
Fellow Kiwis Isaac McHardie and Trent Rippey were 47th, Markus Somerville and Aaron Hume-Merry 48th and Logan Dunning-Beck and Jack Simpson 61st.
Three races for the gold fleets are due to be sailed on the final day before the top 10 medal race in both the 49er and 49erFX.
New Zealand's Alexandra Maloney and Molly Meech also managed a race win in the women's 49erFX class and will go into the final day eighth. Denmark's Ida Marie Nielsen and Marie Olsen are leading from Martine Grael and Kahena Kunze of Brazil.
Meanwhile, Sara Winther was 19th and Susannah Pyatt 35th after the first day of racing in the Laser Radial world championships in Oman.