The Zumbro Endurance Run hosts three races simultaneously, the Zumbro 100 Mile Endurance Run (starts at 8:00 AM Friday) and the Zumbro Midnight 50 (starts at 12:01 AM Saturday) and the Zumbro 17 Mile Trail Race (starts at 9:00 AM on Saturday). Each distance will have its own unique race number (unique color and number series) so runners can be easily identified by race officials, volunteers, spectators and other runners.  Additionally, 100 mile runners will be given a piece of pink ribbon to tie to the back of their running vest, belt, hat, shorts etc. so they can be easily identified from behind (and given the right of way) by other runners. Runners who register by the deadline will have their name custom printed on their race numbers. We ask that all competitors wear their number on the front of their body on their outer-most layer at all times. Runners will be tracked coming into and out of each aid station. If we cannot see your number, we cannot track you or take your finishing time and if we cannot do that, you will be disqualified and will not earn an official finish.

Your bib number assignment can be found HERE

* NEW for 2017 (Zumbro and all RSR events): We will no longer be printing your emergency contact info on the front of your bib (the only info in addition to your name will be your shirt size) – we encourage you to write-in your your emergency contact information on the back of your bib (scroll to the end of the page for the bib-back example), We will have Sharpie markers at check-in so you can do this.

* NEW for Zumbro this year: There will be a pull tag on the bottom of your bib, should we have any issues with our timing system we will make use of your pull tag when you finish (read; we will pull your tag off of your bib when you finish as we record your time in order to keep track of your placing) so please DO NOT remove your pull tag in advance or unless direct to up on finishing the race – it is highly unlikely that we will need to use this but is intended as a fail-safe for our timing system.  Do not put pins through your pull tag.

* NEW for Zumbro this year: We are requiring pacer bibs for 100 mile runner’s pacer(s), you can pick up pacer bibs (as many as you need) at packet pickup or on race morning to give to your pacer(s) or they can come see us anytime for one.


Zumbro 100 Mile Endurance Run – Red – Number Series 1 – 200


Zumbro 100 Mile Endurance Run – Pacer Bibs



Zumbro Midnight 50 – Blue – Number Series 500-725



Zumbro17 Mile – Green – Number Series 1700+



Race number back, typical all distances:

The Zumbro Endurance Run will be chip timed. Your timing chip will be affixed to the back of your race number. Do not remove your timing chip. Do not bend or fold your timing chip or crumple your race number – this may break your timing chip. Your race number and your timing chip must be pinned on your outer-most layer at all times. Above guidelines must be followed in order ensure that split times and finish times are recorded. This chip is disposable and does not need to be returned.