The day started with winds of 11 knots, but soon increased to gusts up to 30 knots which made the race committee cut-down sails as the teams began to fight against the elements.
With sunshine and steady, strong wind for the rest of the day, the teams were put to the test as the event progressed towards the first crucial break point - race 153 and the end of the first round robin.
When that time came early afternoon, GBR 2 were the leading the contenders with a strong 16 wins out of 17 races. They were followed by USA 1 in second place and GBR 1 in third, both tied on 15 wins, with USA 1 taking second with a strong 124 combination in the closing races of the round.
Fourth and fifth places were held by USA 2 and USA 3 respectively on 14 wins each.
By the end of the day, 210 races had been completed and GBR 2 had continued their run of good fortune dropping only one race to retain the overnight lead with 21 wins out of 23 races.
Behind them, GBR 1, USA 2 and USA 3 are neck and neck with 20 wins each while GBR 3 and USA 3 are chasing them down with 18 wins each.
Further down the board, and safe at the moment for a Gold League position, BER 1 are lying seventh, IRL 1 in eighth and GBR Youth 1 in ninth.
Racing continues on Wednesday with AUS 1, USA Youth 1, JPN 1 and AUS 2 still in the running for the Gold League if they can improve their win rate during the final stages of the round-robin.
Results - http://exiles.org.uk/events/2015/ISAFTeamRacingWorlds/
Event website - www.rutlandteamracing.org.uk
History - http://www.sailing.org/events/teamracingworlds/history.php