Before running the 300m at the IAAF World Challenge Thursday, Shaunae Miller-Uibo said she wanted to break the world record in the event. Lo and behold, she did it! | NBC Olympics & Paralympics

🏆 Spartan Triumph at SEA Games! 🏆 Spartan Racer Jaymark Rodelas shatters records at the 32nd SEA Games in Cambodia, conquering both the World Obstacle - Fédération Internationale de Sports d'Obstacles and Guinness World Records in the OCR 100m Obstacle Course race! Check out his blazing-fast 25.092-second run in the video 🎥 . The SEA Games have kicked off with OCR competitions in full swing, and athletes like Jaymark are going for gold in various challenges. There's no room for excuses, so te