Michelle Gribi/Reto Gribi (Biel, SUI) qualified for the 2018 Gefle Mixed Doubles Cup playoffs, dropping their quarterfinals match 8-6 against Ildiko Szekeres/Gyeorgy Nagy (Budapest, HUN). of the 2018 Gefle Mixed Doubles Cup in Gavle, Sweden;
 
Gribi/Gribi finished 3-2 in the 24-team qualifying round. . In their opening game, Gribi/Gribi lost 9-2 to Malin Wendel/Fabian Wingfors (Goteborg, SWE), then responded with a 10-3 win over Stephanie Wild/Tommy Kohn (Aarau, SUI). Gribi/Gribi won 10-1 against Agnieszka Paszek/Michal Paszek (Lodz, POL). Gribi/Gribi went on to lose 9-4 against Jenny Perret/Martin Rios (Glarus, SUI). Gribi/Gribi responded with a 6-4 win over Dace Regza/Ansis Regza (Riga, LAT) in their final qualifying round match.
 
. For week 25 of the event schedule, Gribi/Gribi did not improve upon their best events, remaining at th place on the World Ranking Standings with total points. Gribi/Gribi ranks th overall on the Year-to-Date rankings with points earned so far this season.