Isak Angerstig was born in Tacoma, WA, but grew up in Uppsala, Sweden. Floorball was a big part of his life growing up and his home club was Hagunda IF. After moving to the United States in 2014, he discovered North Texas Floorball Association based in Dallas, Texas and has been an active part of that community ever since. He primarily plays center or right wing forward and represented Team USA in the men's under 19 World Floorball Championships in 2015 and 2017. He won US nationals in 2019, whilst being rewarded MVP of the tournament and he has also won two USA national championships with NTFA. He is a returning member of the inaugural NAFL Fort Worth Jaguars 2022.