TOKYO -- Karsten Warsholm, Norway, broke Tuesday's world record in the Olympic 400m hurdles. He finished in 45.94 to surpass the previous mark of.76.This race was a huge success and has been viewed as one of the most anticipated.Rai Benjamin, second-place finisher in the United States, finished in 46.17. This also surpasses the 46.7 record Warholm set last month.Warholm tore his jersey open when he crossed that line first. He gave the same jaw-dropping expression of surprise as when he won the 2017 world championships.Alison dos Santos from Brazil came in third at 46.72. Six of the eight runners also broke a national, continent, or world record.It was an overall success, and it lived up to the expectations of a hot afternoon at the Olympic Stadium.It's amazing, but not surprising.ResultsAt the U.S. Olympic trials, Benjamin broke 47 seconds with a run time of 46.83. The excitement for this showdown began to build. Benjamin was only the fourth man in the world to break that mark and declared that he believed he had a low 46 in him.Warholm ran the 46.70 and broke the 29-year-old record set by Kevin Young in the world since the Barcelona Olympics.Warholm started in Lane 6 and quickly took the lead. By the halfway point, Benjamin was so far ahead that it appeared that Warholm was vs. time.Warholm took 13 strong steps to cover the distance between hurdles, but he never lost his stride. Although he sped across the line in a flurry of arms, it didn't come at a high price. For many of these hurdlers, low-46 was a long-cherished dream. The mark now is in the high 45s.This race may have been an undercard to the women's fight in Tokyo on Wednesday morning.Warholm's record was set 24 hours before American competitors Sydney McLaughlin, Dalilah Mohammed were due to meet in the women's 400 hurdles s. This race is where they have broken the world record three times in major competitions.Malaika Mihambo, a German woman who jumped 7 meters on her last attempt, took the top spot in women's long jump. She edged Brittney Reese, a veteran U.S. athlete for the Olympic gold medal.Mihambo won 2019 the world championship title and was fourth at the 2016 Olympics.After winning the title in London 2012, Reese is now 34 years old and has won back-to-back Olympic gold medals from Rio de Janeiro and Tokyo Games.Although the four-time world champion was eligible to win the final jump, she couldn't improve her mark of 6.97 meters.Ese Brume from Nigeria won the first round. She was again in the top spot after the fourth round. Bronze was also taken on a countback.