In addition to the two Önnereds teams, 83 other teams from 20 different countries played in Boys 13. They were divided into 14 different groups, whereof Önnereds HK 1 could be found in Group 2 together with Ullern IF, SC Olimp Dolgoprudny City, TJ Dukla Praha, IK Sund and Schiffdorf TV. Önnereds HK 1 made it to A-Play-off after reaching 2:nd place in Group 2. Once in the playoff they made it all the way to the Final, but lost it against RK Zagreb 2 with 7-17. Thereby Önnereds HK 1 finished second in B13 A-Play-off during Partille Cup 2013.