Shana Grebo made her season debut for Oregon on Friday at the Oregon Twilight, running 52.95 to win the 400 meters at Hayward Field. It was her first race on the track since competing for France at the World Athletics Championships last summer. \n<\/div><\/div><\/td><\/tr><\/table>\r\n\t\t\t\t<\/div>\r\n\r\n\r\n\r\n\r\n