Gronfeldt-Sorenson brings in an outstanding international resume having been a four-time Danish National Champion and the No. 1 U18 player in Denmark. The Copenhagen native reached an ITF World Junior Ranking of No. 129 while earning his spot to compete in the 2025 Junior US Open. During the ITF Junior Circuit, he was able to obtain three singles titles and earn nine doubles titles, cementing himself among some of the best juniors.
Gronfeldt-Sorenson has been able to make multiple strong runs in prominent juniors’ doubles tournaments by securing titles alongside his fellow Denmark native August Brostroem Poulsen, in the J100 Hanko with a 6-4, 7-6 victory and the J300 San Jose winning 7-5, 1-6, 10-2. The tandem also reached the J200 Aldershot finals in Great Britain after having an amazing comeback with a final score of 3-6, 6-3, 10-5. As a singles player, he won the J100 Varnamo in Sweden and was able to make it up the charts while obtaining a UTR of 12.54.
