By this stage of the Aspen Women’s Match Racing Regatta, all four semi-finalists should have revealed themselves — but the weather prevented the conclusion of the round-robin stage.

After a heavy rainstorm brought the first flight to a premature halt and sent the skippers back to port for about an hour, there was still the final flight to take place when the wind speed dropped and the race committee called an early end to the day’s racing.

The remaining five races will be held on Saturday morning when the final two semi-final spots will be decided.

Anna Ostling, of Sweden, and Pauline Courtois, of France, who was heavily bandaged after crashing her scooter in wet conditions on the way to the Royal Bermuda Yacht Club, confirmed their place in the knockout stages. They will be joined in the last four by two from Lea Vogelius, of Denmark, American Nicole Breault and Julia Aartsen, of the Netherlands.

Vogelius, who has two races left to sail, and Breault hold the upper hand knowing they will make the semi-finals with one more win.

“It was a frustrating day today and we would have loved to win our matches today, but it wasn’t to be,” Breault said.

“We’re going to have a nice dinner, get a good night’s sleep and do what we know. We’re going to come out against Martina Carlsson and do what we know. We’ve been watching them improve and we are going to take nothing for granted. We’re going to give them our best and I’m sure they are going to give theirs, so it should be a good match.”

Aartsen’s only chance of advancing is by beating American Lindsey Baab and hoping one of her rivals loses, but she gave herself a chance to progress with a crucial point against Breault in their match yesterday.

“That was nearly perfect,” Aartsen said. “But I was checking my heart rate at the end of the match and it was around 135 to 140 beats as the race was intense.

“Tomorrow, we’re going to focus on ourselves and not on our opponents. We’re going to do the right things. I’m not sure what direction the wind will be, but we’ll have a good preparation and hopefully that will be enough for the semi-finals.”

All eight crews will return on Saturday morning, with the semi-finals taking place in the afternoon.