In addition to the two Önnereds teams, 16 other teams from 4 different countries played in Girls 10. They were divided into 3 different groups, whereof Önnereds HK 3 could be found in Group 1 together with Sunnydale, Kärra HF 1, Lugi HF 1, IK Sävehof 3 and IK Sävehof 2. Önnereds HK 3 made it to B-Play-off after reaching 4:th place in Group 1. Once in the playoff they made it all the way to the Final, but lost it against India Apeejay with 5-11. Thereby Önnereds HK 3 finished second in G10 B-Play-off during Partille Cup 2019.