In addition to the two Dolphins teams, 5 other teams played in Boys 98. They were divided into 2 different groups, whereof Dolphins Svart could be found in Group A together with Pakilan Visa, KFUM Örebro Basket HU17 and Rauma Basket.

Dolphins Svart made it to Slutspel A after reaching 1:st place in Group A. Once in the playoff they made it all the way to the Final, but lost it against Dolphins Vit with 25-64. Thereby Dolphins Svart finished second in B98 Slutspel A during Stadium Basketball Cup 2015.