Isabell Andersson/Mikael Andersson (Gavle, SWE) qualified for the 2018 Gefle Mixed Doubles Cup playoffs, dropping their quarterfinals match 7-3 against Gina Aitken/Bruce Mouat (Stirling, SCO). of the 2018 Gefle Mixed Doubles Cup in Gavle, Sweden;
 
Andersson/Andersson finished 3-2 in the 24-team qualifying round. . In their opening game, Andersson/Andersson lost 9-2 to Ildiko Szekeres/Gyeorgy Nagy (Budapest, HUN), then responded with a 10-8 win over Natalie Wiksten/Kasper Wiksten (Hvidovre, DEN). Andersson/Andersson won 8-7 against Dace Regza/Ansis Regza (Riga, LAT). Andersson/Andersson went on to lose 8-5 against Camilla Noreen/Per Noreen (Gavle, SWE). Andersson/Andersson responded with a 7-3 win over Kristiine Lill/Martin Lill (Tallinn, EST) in their final qualifying round match.
 
. For week 25 of the event schedule, Andersson/Andersson did not improve upon their best events, remaining at th place on the World Ranking Standings with total points. Andersson/Andersson ranks th overall on the Year-to-Date rankings with points earned so far this season.