Four Harker upper school students and one middle school student have advanced to the third round of the USA Math Olympiad and Junior Math Olympiad, respectively. Sophomores Cynthia Chen, Rohan Cherukuri and Jeffrey Kwan, senior Swapnil Garg and eighth grader Rishab Parthasarathy were among the top 500 students from the roughly 75,000 who took the American Math Contest in February to qualify for the third round. The nine-hour test is taken over the course of two days. Top scorers will have the chance to represent the United States at the International Mathematical Olympiad, set to take place this summer in Romania.