Start Line Information

Please note: the information below refers to the 2018 Tamarack Ottawa Race Weekend. Check back soon for updates regarding 2019.


Runners in the HTG Sports Ottawa 5K, Ottawa 10K, Scotiabank Half Marathon and Scotiabank Marathon events will be sent off in a series of rolling wave starts organized by corral. Please read below for more information about Corrals and Wave Starts.


Each start line area will be divided into distinct zones or CORRALS designated by coloured flags and corresponds with the CORRAL colour on your race number. Each corral represents the projected finish time for runners lining up in that area. Runners should line up in the corral according to the projected finish time they submitted during the registration process.

Before the race, please head to the start line and into your designated corral. Our start line team will help guide you to the proper corral. Tip: The start line can be a busy area, so please give yourself plenty of time to get to your corral.

The following provide the projected finish times and corresponding corral (by colour) for each event.

Marathon1/2 Marathon10K5K
BlueSub 3:15Sub 1:45Sub 45minSub 24min
Orange3:15-3:391:45-1:5445-54 min24-27 min
Yellow3:40-3:591:55-2:0455-59 min28-30 min
Green4:00-4:242:05-2:1460-64 min31-33 min
Purple4:25-4:542:15-2:2965-69 min34-37 min
Red4:55+2:30+70+ min38+ min



There will be Wave Starts in the 5K, 10K and Half Marathon events.

To spread the field out at the start, runners will be sent off in a series of waves starting with the blue corral, followed by orange, yellow, green, purple and red corrals.

Each wave will be sent off approximately every two minutes, until everyone in that corral has started. As a wave is sent off, the next one will be brought forward to the start line and directed to wait until given the signal to start. This process will continue until all corrals have left.