E3 teams compete primarily in the 50K Relay. There are also 50k and 100k solo events as part of this race. The 100K is the USATF National Championship Race and USATF members' finish time in the MadCity 100K will be used as a time standard for selection of Team USA which will compete in the 100K World Championship race.
The 50K is also a USATF Certified course and your finish time will be valid for the 50K World Championship.
The 50K Relay is for teams of 2-5 runners on the same 5K loop course. Our relay teams are fantastic cheering sections for all the runners, creating a great race day environment.