NEW YORK -- Jack Sock, a 23-year-old American, is through to the second week of the US Open for the first time.The No. 26 seed surprised No. 7 Marin Cilic with an emphatic 6-4, 6-3, 6-3 victory Friday to advance to the fourth round. Cilic won the 2014 US Open, his only major victory.The big-serving Croatian came in as the hottest player in tennis, winner of eight straight matches and 14 of 15. Part of that run included winning the ATP Masters 1000 title in Cincinnati two weeks ago, beating Andy Murray in the final.Hes a very dangerous guy in these kind of conditions, Cilic said of Sock, where the ball is coming off pretty fast, off the court.It was Socks first win over a top-10 player in a Grand Slam, and it came in a swift 1 hour, 41 minutes. His only previous trip to the second week of a Grand Slam tournament came when he got to the fourth round of the 2015 French Open.Just all around, I think Im putting things together, better and better, said the 26th-seeded Sock, who celebrated his victory with a racket-as-foil jousting move in tribute to his friend and fellow U.S. Olympian, bronze medalist fencer Miles Chamley-Watson. I definitely feel more confident out there in everything Im doing.Sock is now 3-16 against top-10 players -- but 2-0 against Cilic, going back to Julys Davis Cup win in Portland, Oregon.He can play some of the best tennis in the world, Sock said of Cilic in his on-court interview. I took a lot of stuff from that match in Portland. I was down two sets to one, changed up the tactics.Now Sock wants more. He thinks his game and his mindset are ready for deep Grand Slam runs.Feels great. It was a big match for me.The Associated Press contributed to this report. Ray Ban Sunglasses Sale Cheap . 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LOUDON, N.H. -- Kevin Harvick has thrived as NASCARs version of a Game 7 master, steeling his nerves and flourishing in those win-or-else races that kept a championship push alive.His Chase off to a rocky start, Harvick injected the Chase again with a rousing finish that eliminated a must-win race for him and parked him in the next playoff round.Harvick won Sunday at New Hampshire Motor Speedway to earn a spot in the second round of the NASCAR Sprint Cup playoffs, pulling away on a restart a year after a late loss at the track.Its kind of like an addiction, Harvick said. You just love the rush of being able to be behind and be able to perform and make that happen.Harvick finished 20th in the Chase for the Sprint Cup championship opener, which stuck him 15th in the standings. With another weak finish at New Hampshire, Harvick would have faced yet another race at Dover he may have had to win to advance.His lap times in the No. 4 Chevrolet only got faster deeper into the race, and he was soon nipping at Martin Truex Jr. and Matt Kenseth at the front of the field. Kenseth dominated the second half of the race and seemed poised to win the New Hampshire race for the third straight time.Harvick, the 2014 Sprint Cup champion, had enough juice in the Chevy to zip past Kenseth with five laps left and join Truex as the drivers locked in the next round. Truex won the Chase opener at Chicagoland, and he led a race-high 141 laps at New Hampshire.Harvick ran out of fuel late last year at New Hampshire to lose and faced a win-or-elimination race the next week at Dover. Harvick, who won for the third time this season, rallied for one of the biggest wins of his career to survive another round.He won in a similar situation in 2014 at Phoenix when he needed a victory to advance to the championship race. Harvick won the finale and the championship at Homeestead.dddddddddddd.The last two years, weve kind of just worn ourselves out and really stressed out over trying to perform at this level, he said.At Dover, its up to 14 other drivers to worry about a win.Chase drivers took the top eight spots Sunday. The 16-driver Chase for the Cup championship field will be cut to 12 after Dover.Kenseth led 105 of 300 laps and would have clinched with the win, just as he did last season at New Hampshire when he was in perfect position to take advantage of Harvicks fuel foul-up. Kenseth appeared to slow down just a bit off the last restart with five laps left, allowing Harvick to race side by side before he took off for his 11th win in 100 career starts with Stewart-Haas Racing.It was just a smooth restart. I just didnt want to spin the tires, Harvick said. I dont know what happened to him, or if I just timed it right.Kenseth won the May race at Dover and appears in solid shape to reach the second round.I let Kevin lay back on me, which were supposed to be side by side. I should have known better, Kenseth said. I should have just went really late in the zone and wait until he had to get up to my nose because he anticipated it just right and laid back. Plus, I spun the tires, and I got beat through [Turns] 1 and 2, and then it was over.Joe Gibbs Racing teammates Kenseth and Kyle Busch were second and third. They were followed by Chase drivers Brad Keselowski, Kurt Busch, Carl Edwards, Truex and Jimmie Johnson.Other Chase results: Kyle Larson was 10th, Joey Logano 11th, Chase Elliott 13th, Denny Hamlin 15th, Austin Dillon 16th, Jamie McMurray 19th, Tony Stewart 23rd, and Chris Buescher 30th.McMurray, Dillon, Stewart and Buescher are the bottom four drivers in the standings. ' ' '