Australia have claimed the inaugural womens rugby sevens gold medal on day three of the Olympic Games in Rio de Janeiro with a 24-17 victory over New Zealand in the final in Rio.The Australians entered the womens competition as raging gold medal favourites and they didnt disappoint -- stretching the countys gold medal tally to four.Star guards Matthew Dellavedova and Patty Mills combined for 49 points in a 95-80 win over Serbia on Monday as Australia took a giant stride towards a top-two group finish in the Olympic mens basketball competition.The Boomers will now meet the all-conquering United States on Thursday and are confident of challenging the world champions.In the swimming pool, Australia have suffered two devastating defeats with Mitch Larkin and Emily Seebohm both missing a medal in their respective 100m backstroke finals.Larkin and Seebohm, pool deck partners, went into the meet as hot race favourites having each completed the 100m-200m backstroke double at the 2015 world championships in Kazan, Russia, but they suffered double disappointment after each lead at the turn.Larkin finished fourth behind winner Ryan Murphy of the United States, while Seebohm slumped to seventh in her race.The Rio Olympics will be Alicia Coutts swimming farewell but she could go out in style after qualifying sixth-fastest for the 200m individual medley semi-finals.Coutts, who won five medals at the London Games, matching Ian Thorpe and Shane Gould for most medals by an Australian at one Olympics, was second in her heat.Just knowing that I have got nothing to lose, Im here to give it everything I have got and after this event I have other things to look forward to.Emma McKeon and Bronte Barratt are through to the womens 200m freestyle final after touching the wall in second and fourth in the first semi while Grant Irvine clocked the fourth best time ahead of the mens 200m butterfly semis.A last-gasp shot and four goals from Richie Campbell helped Australia snatch a 9-9 draw in their clash with water polo powerhouse Hungary.Samantha Stosur has marched into the third round of the womens singles with a straight sets win at the Olympic tennis centre.The top-seeded Australian eliminated Japans Misaki Doi 6-3 6-4. Stosur will next face German second seed and Wimbledon finalist Angelique Kerber.John Millman has blown a massive chance to join Stosur in the third round of the Olympic tennis singles, almost toppling fourth seed Kei Nishikori. The Australian was beaten?7-6 (7-4) 6-4, but does leave Rio as the first player in Olympic history to win a match?6-0 6-0 -- after his round one drubbing of?Lithuanian Ricardis Berankis.Jessica Fox has progressed to the semi-finals of the K1 canoe slalom after finishing second in her qualification runs at the Rio Olympics.Foxs penalty-free second run gave her a score of 99.51, leaving her just behind fastest qualifier Stefanie Horn (99.07) from Italy at the Whitewater Stadium in Deodoro on Monday.Australias mens four is also into Wednesdays semi-finals as they moved a step closer to toppling Britains dominance of the event when they posted the fastest time in Tuesdays heats.Australia sits in the box seat for double equestrian gold with one round left of the three day eventing at the Rio Games with Chris Burton leading the individual rankings and Australia on top of the teams event with the show jumping to finish off the competition.In rowing, the Australian mens four have moved a step closer to reviving the Oarsome Foursome tag after posting the fastest heat time at Lagoa Stadium.Veteran Australian rower Kerry Hore had to be consoled by her teammates as the devastation of missing the womens quad scull Olympic final set in.The Australians missed the medal race by a heart-breaking 0.06 seconds, bringing an end to four-time Olympian Hores rowing career.Hore broke down in tears during the post-race interview with her teammates supporting the sobbing Tasmanian.This wasnt how I pictured finishing up, the 35-year-old said.Australian sailor Ashley Stoddart has finished eighth in her first race in the Laser Radial in Rio.Adam Vella has admitted the controversy around the selection of Australias male trap shooters played a part in their disappointing performance at the Rio Olympics.Three-time Olympian Vella confirmed his Games career was over after finishing 12th while teammate Mitchell Iles was 26th.Meanwhile, Australia is last in Pool B in womens hockey after the Hockeyroos suffered a 2-1 loss to the USA following their opening defeat against Great Britain. 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DAYTONA BEACH, Fla. -- DeWalt will increase the number of races as Matt Kenseths primary sponsor from six to 10 this year and then to 15 for 2017, Joe Gibbs Racing announced Thursday before practice at Daytona International Speedway.Kenseth, 44, won the 2000 rookie title and his 2003 Sprint Cup championship in a DeWalt car. He was reunited with the company last season, two years after his move to JGR.Team owner Joe Gibbs said the new arrangement is a multiyear deal. Kenseth said afterward that even though there was no announcement of how many races DeWalt would sponsor in 2018, it does not mean he would retire after next year.Its a multiyear deal, Kenseth said. I wouldnt readd too much into it.dddddddddddd ... I made my first Cup start with DeWalt. I hope to make my last Cup start with DeWalt. Not today, of course, but someday down the road. Theyve been more than a great sponsor. Theyve been like family.Kenseth still has open races for 2017. Sponsor Dollar General, which had been doing as many as 30 of the 38 races a year, opted to leave NASCAR after this season.You always hate it when theres a change, said Kenseth, who has 37 career Sprint Cup wins. It was great to have DeWalt come back and keep expanding their role. ' ' '