RIO DE JANEIRO -- In the unpredictable sport of BMX cycling, where races last just about 40 seconds, a strong start means a lot.Get to the front after the first turn, and theres a good chance a rider will be able to avoid the kind of wreck-filled chaos that marked the action in the mens quarterfinal round at the Rio de Janeiro Olympics on a breezy afternoon.Its always the key, Australias Sam Willoughby said, but especially ... when its windy like this and theres carnage out there.An early lead will come in handy for riders in the mens and womens semifinals beginning Friday afternoon, with the medal races later in the day.Willoughby is on a roll headed into the semis after winning all three of his heats in the quarters on Thursday . Australian teammate Anthony Dean also had a strong quarterfinal round, while the United States and the Netherlands each sent all three of their cyclists into the mens semis.We dont have lanes and its a full-contact sport, so the start is very important, Willoughby, the 2012 silver medalist, said this week. To get out front at the first corner, you can run your own race from there and create your own destiny a bit.Its tough enough just to have a chance to lead the pack after the first turn.The action begins with cyclists released from a starting gate at the top of a ramp three stories tall. They pedal furiously down the ramp and pick up speed to jump hills and maneuver through turns on the roughly quarter mile-long course.U.S. rider Alise Post said she thinks riders reach a speed of 35 to 40 mph just a few seconds into the race. Theres no suspension on the bikes, either.Its very demanding for sure, Post said.The series of jumps after the starting ramp leads into the wide first turn. Inside position is important. Stay out in front and there is a greater likelihood that a rider wont get caught up in the pack of cyclists desperately trying to catch up.And this all might happen in a span of 10 seconds, maybe less.The alternative is to scramble from behind, which isnt uncommon, though less desirable.A contenders day can end in a hurry. In the quarterfinals on Thursday, two-time gold medalist Maris Strombergs barely missed the cut after getting set back from a crash in his first heat that also involved Britains Liam Phillips. Joris Daudet of France, the reigning world champion, also got knocked out after crashing.Theres still 800 feet of track that you cant mess up on ... because seven guys will pass you, no problem, U.S. rider Nic Long said. Its never easy. But yeah, winning to the first jump, the winning to the second jump, then winning the first turn, makes winning to the finish line that much easier.---Online:AP Summer Games: http://summergames.ap.org/---Follow Genaro Armas at: https://twitter.com/GArmasAP Dwight Clark Jersey . Parker had 26 points and eight assists and San Antonio beat Toronto 112-99 Monday night. "We won that game because of Tony Parkers aggressiveness," Spurs coach Gregg Popovich said. "His juice; his aggression all night long. Cheap Football 49ers Jerseys . But Bourque, who has missed three games with a lower-body injury, wont be in the lineup when the Habs travel to Buffalo to take on the Sabres on Wednesday. http://www.cheap49ersjerseyssale.com/?tag=garry-gilliam-jersey-sale . -- Golden State Warriors coach Mark Jackson asked his players a simple question during Fridays morning shootaround: How many of them had ever been on a team 14 games over . Garrett Celek Jersey . Argentina winger Ezequiel Lavezzi and France midfielder Blaise Matuidi scored, with star striker Zlatan Ibrahimovic setting up both despite having a poor game by his high standards. Forward Eduardo gave Ajaccio the lead in the sixth minute after being set up by right winger Benjamin Andre, and the Corsican side looked comfortable in the first half, with the lively Johan Cavalli causing problems with his probing runs from midfield. Frank Gore Jersey . Brazilian national coach Luiz Felipe Scolari has confirmed that the veteran goalkeeper is set to join Toronto on loan, saying it will help him be ready for the World Cup. Black Caviars daughter Oscietra has made an immediate impression in her first public appearance, winning a jump-out at Flemington as she builds towards a highly anticipated race debut.The two-year-old filly, the first foal out of the champion mare who was undefeated in her 25 starts, flew out of the barriers in Fridays 800m hit-out to lead her trial and was never headed as she won the five-horse heat by about a length.I sort of expected her to do that, trainer David Hayes said.I would have been a bit disappointed if she came out and ran poorly. I was really happy.She showed terrific gate speed, she was a bit new in the straight having a look around but she did enough to win the trial and I thought she had a bit in hand.So I gave her a pass mark, definitely, for her first jump-out and on the 23rd of December in her next trial, I think shell trial pretty well.Hayes said Oscietra would have a more serious test in her next jump-out in two weeks which will decide whether she is ready to head to the races.Hayes has earmarked a two-year-old fillies race at Fleminngton on January 1 and there another option a day earlier should she come through her next trial with flying colours.dddddddddddd.Oscietra was ridden by jockey Luke Nolen who partnered Black Caviar in 22 of her 25 wins.The group of people who raced Black Caviar and have retained her progeny were on hand to watch Oscietra.I think they relaxed a bit when they saw her jump like she did, Hayes said.They were really excited and I think they were happy with what they saw.Hayes says Oscietra is not an filly but is a good mover and is showing promising signs.He is looking forward to seeing what she can produce on the racetrack.Shes really growing towards me, he said.Horses either grow towards you or away from you when you go into a prep, and shes heading in the right direction.Oscietra, by Exceed And Excel, is the eldest of three foals Black Caviar has produced so far.She also has a yearling colt by Sebring and a filly foal by Snitzel. 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