Ten different teams won the 10 fleet races across both days of the Great Britain Sail Grand Prix. Spain was one of those and it was the Spaniards who ultimately surged to victory in the four-boat final to take the overall win in Portsmouth.That so many teams were capable of winning races showed how well the crews performed, especially considering the breeze was again blowing strongly across the Solent, around 17 knots and sometimes gusting over 20.This was the second event that the 13-boat fleet has been split into two groups, seven in Group A and six in Group B. It’s still early days for the experiment, but after this weekend there seems little reason to turn back to the full-fleet format. There was always plenty going on in every race for the stadium crowd — 20,000 ticketed spectators across the weekend — to enjoy.If there was one fly in the ointment for the local supporters, it was that the British team failed to rise to the occasion. Dylan Fletcher and his crew had their moments, including a race win on Saturday, but ultimately finished 11th with no points to add to their season tally.Unstoppable SpainAfter winning last month in Halifax, Canada, it is now back-to-back event wins for Spain.“The team is clicking really well,” skipper Diego Botin told The Athletic. “These boats require a massive team effort. If one piece of the puzzle is missing, it doesn’t work. Right now, everyone has their eye on the ball and is executing smoothly.”That said, Spain were fourth and last off the start in the final against Sweden, Canada and Switzerland. In the past, Botin has said that starting last isn’t always the disadvantage it appears to be. In the Portsmouth final, he proved his theory.“The strategy was to start first, but we didn’t manage it,” he said. “In these conditions, you have to anticipate maneuvers way in advance. We were a bit late for the line, but sometimes starting late opens up clean lanes out of traffic.”Spain’s crew in action on the boat on the second day in Portsmouth. (Ricardo Pinto for SailGP)The Swedes, who finished the weekend second, were leading the race by a small margin, but driver Nathan Outteridge acknowledged the speed and decision-making of the Spanish.“Spain simply decided not to follow us around the top mark and took a gamble. They got a great gust out of that mark with a nice layline (imaginary line from the mark) for the bottom.“When they passed us, we played the percentages. Instead of defending from a weak position, like Canada did yesterday (Saturday) and risk falling off the foils, we settled into second and looked for an opportunistic play later.“They’re the form team, and we’re enjoying racing them.”Earlier in the season, Botin was getting frustrated by making the finals and not managing to seize the overall win.“It’s all about learning from experience. The more finals you sail, the more comfortable you get,” he said. “We’re now at a stage as a team where we aren’t just focusing on the big operational items, we’re fine-tuning the small details and that’s giving us the edge.”Australia falls the wrong side of small marginsAfter a poor showing on the opening day by the teams who were the top two in the overall season standings heading into this weekend, Great Britain and Australia needed to sail flawlessly in their two Group races Sunday if they were to make it through to the four-boat final.Tom Slingsby took the bull by the horns and seized an early lead to take a vital victory in Australia’s first heat. But they still needed to seal the deal with another solid finish in the next race.Pressure on, the Aussies crossed the start line 0.1 seconds too early. The go-behind penalty did for their chances of breaking through to the final four.It’s a game of fine margins and, on this occasion, the Flying Roos fell just the wrong side, although they still remain atop the Championship leaderboard.Disaster for BritainWhen The Athletic asked Hannah Mills if she could ever have envisaged finishing 11th in front of a home crowd, the British strategist responded with a clear no.“Hindsight is wonderful, but it was very shifty out there with big bands of pressure coming down,” she said. “It was easy to get slightly out of phase. And we definitely didn’t have the boat speed we normally enjoy in those conditions.“It’s rubbish having a shocker like this at our home event in front of a big crowd, but that is sport. We have to pick ourselves up, analyze the data, and come back stronger.”A ticketed crowd of 20,000 across the weekend watched the racing in Portsmouth.(Gary Oakley for SailGP)Dylan Fletcher said: “At this point, we have to be honest and say we aren’t performing at the level we know we’re capable of. It’s a tough day for the team, especially at home.”If there was a silver lining, at least Britain’s trigger-pulls off the start line were an improvement on their woeful Saturday starts.