Cms Mile Madness
About this race
Cambridge Multi Sport (CMS) is hosting a weekly, virtual, bracket style mile challenge. Each week, you will be paired up with another runner based on your mile "seeding" time and then moving forward based on the results of each week.
Results will be Age & Gender graded based on the World Masters Athletics (WMA) Age Factors and Parameters to make all pairings as fair as possible.
For example, a 37-Year-Old, Male runner with a mile time of 6:30 (59.01% WMA Age Grade Factor) is equal to a 60-Year-Old, Female Runner with a mile time of 8:53.50 (59.01% WMA Age Grade Factor)
Awards: 1st place 25% of proceeds, 2nd place 15% of proceeds, 3rd place, 10% of proceeds. 50% of proceeds go to CMS to fund Social Activities.
Runs can be logged Tuesday-Sunday and all runs must be tracked using a GPS Enabled Website/App such as Garmin, Coros, Strava, MapMyRun, etc. for verification purposes & each runner is responsible for logging their results in the race results section by 11:59pm each Sunday. Failure to log results will result in a DQ. Elapsed time will be used for race results. Stopping your watch will not stop your mile time so plan your routes accordingly to plan for traffic lights, road crossings, etc.
All Mile Runs must be logged separately from other workouts. For example, do not log your 1-mile race time in the middle of a 5-mile activity. Routes must also start & finish within 100 yards of each other to prevent point-to-point/downhill advantages. No Treadmill Allowed.
Week 1 (12/1/26-12/6/26) - All Runners complete a "Seeding" 1 mile time to determine the first head-to-head matchups
Week 2 (12/8/26-12/13/26) - Round of 32
Week 3 (12/15/26-12/20/26) - Round of 16
Week 4 (12/22/26-12/27/26) - Round of 8
Week 5 (12/29/26-1/3/27) - Round of 4
Week 6 (1/5/27-1/10/27) - Championship to determine 1st & 2nd Place. Consolation to determine 3rd place
Pick your distance
Running
CMS Mile Madness
This is a virtual, weekly event. Week #1 is for seeding times for all participants, Week #2 is the first match-up week, and winners will advance from then on.
Typical race-day weather
Based on 4 years of Open-Meteo archive data for this event's race dates in Cambridge, plus the 3 days either side.
The sun rises at 7:03 AM and sets at 4:43 PM local time (EST) in Cambridge on December 1, 2026 — 9h 40m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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Other races near Cambridge
Different organizers, within 40 miles, in the next three months
Santa Fun Run 5k for Hospice
Talaria Trail Run
Gobble Gallop 5K
New Year’s Day 5k Hot Chocolate Run
🏃 Plan Your Next Race in Cambridge
Find upcoming events by distance:
- Cambridge 5K Races 2 races
- Cambridge Running Calendar 2026 6 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 9 Cambridge events
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