 She was among the three powerlifters who represented the Philippines in the 2012 Summer Olympics in London along with Adeline Dumapong and Agustin Kitan.Guion herself competed in the women's -44kg event where she placed sixth among eight competitors by lifting 70 kilograms.At the 2014 Asian Para Games in Incheon, Guion won a silver medal in the women's -45kg event by lifting 70 kilograms and in the 2017 World Para Powerlifting Championships in Mexico City, Guion placed eight by lifting the same weight in the same weight category.