The IJGT traveled to Avondale, Pa., to host The Summer Series at Hartefeld National on July 28-29, 2015 at Hartefeld National. Juniors competed in sunny conditions for IJGT Merit Points and national rankings during the two-day, 36-hole event.
Groenhuysen made a comeback from his first round of 86, to improving his score by 13 strokes by carding a 1-over 73 for his final round. He did this by making an early birdie on hole No. 2 and then back-to-back birdies at holes Nos. 7 and 8. Making the turn at 2-under, Groenhuysen battled the back and had a par streak from hole Nos. 13-17. This great round moved him up in the ranks to ninth place with a two-day total of 159 for the Boys 15-19 Division.
Andersen came into the final round in second place. With only a four stroke cushion she needed to hold off the girls behind her. She battled throughout the day and carded a 97 to finish her round. Andersen held off her competitors, securing second place by three strokes. Andersen had a two day total of 189 for the Girls Division.