My husband and I run at different paces. He's a fast runner averaging 8 minute miles, while I am a slow runner at double his pace (15-16 minute miles). In 2014 we did Expedition Everest Challenge and Tower of Terror 10 Miler. For EEC, it was a team event and seemed enjoyable for both of us going at my slower pace. However, for ToT I felt like I was holding him back. I would tell him to go run and I'll catch up with him later, but he stayed by my side. It was a nice gesture but I kept worrying about him and if he was enjoying the race. He was mostly walking it at my pace. I learned walking for him is more painful than running. Since then we've run our own races and would meet up afterwards at the finish line or the hotel. In doing that we both enjoy the race experience more.