If you have heard runners talking about their runDisney "corral", they are referring to what runDisney now officially calls a start group. Your start group helps organise runners by anticipated pace and finish time, but exactly how it is assigned depends on the race distance and whether you need to submit an official proof of time.
What are runDisney start groups?
Runners are assigned a start group before race day, shown by the letter on their race bib. Earlier groups begin first, with subsequent groups released progressively to spread runners across the course.
runDisney confirms that start groups are assigned using proof of time or estimated finishing time depending on the race, and that no start-group changes are made at the Expo or on race morning. Check the official Disney Princess Half Marathon Weekend runner information for details specific to your race weekend.
Do you need to submit proof of time?
Not every runDisney runner needs to submit a proof of time. For the 2027 Disney Princess Half Marathon, runners expecting to finish in 2 hours 30 minutes or less need an eligible race result for start-group placement. Runners expecting to take longer than 2:30 do not need proof of time, with placement instead based on anticipated finish time and available start-group capacity.
Because these thresholds can change each race season, always check the current Disney Princess Half Marathon proof-of-time requirements for your specific event before assuming whether you need to submit.
What counts as valid proof of time?
For the 2027 Disney Princess Half Marathon, accepted race distances are 10K, 10-mile, half marathon and marathon. The result must come from an officially timed race on a USATF-certified course.
runDisney does not accept relay races, trail runs, self-timed runs, training runs or virtual races as proof of time.
The eligible result window for the 2027 Princess Half Marathon runs from 1 January 2024 to 1 October 2026. This date range changes with each event cycle, so always check the current requirements for your event rather than assuming that any recent result will qualify.
How do you submit proof of time?
Proof of time is submitted through your runDisney participant account. For the 2027 Disney Princess Half Marathon, the current deadline is 1 October 2026. runDisney states that changes cannot be made after the deadline.
Deadlines and eligible result windows change each season. Check the current Disney Princess Half Marathon proof-of-time requirements page for your event rather than relying on any date mentioned in this article.
What happens if you don't submit proof of time?
If your expected finish time requires proof of time and you do not submit an eligible result, or your result cannot be verified, runDisney states that you will be placed in the final start group.
If your estimated finish time does not require proof of time, your placement is instead based on the anticipated finish time you provide and start-group capacity.
What about the runDisney 5K and 10K?
Proof of time is not currently required for the Disney Princess 5K or 10K. Instead, you select your anticipated pace during registration and runDisney uses that information, together with start-group capacity, to determine your placement. If you are training for your first runDisney 5K, the lack of a proof-of-time requirement means registration and start-group placement are more straightforward.
Should beginners try for an earlier start group?
An earlier start is not automatically a better race experience. The most useful placement is one that reflects the pace you can realistically maintain on race day.
Avoid submitting an unrealistic expected finish time simply to move into an earlier group. Starting among runners moving substantially faster than you can encourage an overly quick opening mile and creates unnecessary pressure in those critical early kilometres.
If you are training for your first Princess Half Marathon, consistent preparation and a realistic expected pace are much more useful than trying to force yourself into an earlier start group. Our Princess Half Marathon training plan builds your endurance progressively towards race weekend and uses Magic Miles as training benchmarks to help you understand your developing pace.
How to get an eligible race result
If you want to qualify for earlier start-group placement and do not yet have an eligible race result, look for a locally organised and officially timed 10K, 10-mile race or half marathon that meets runDisney's current requirements. Before entering specifically to obtain proof of time, check that the event uses official timing on a USATF-certified course.
The qualifying date window and accepted distances change each event cycle. Always refer to the current Disney Princess Half Marathon proof-of-time requirements before signing up to a race purely for proof-of-time purposes.
Magic Mile versus official proof of time
Glass Slipper Run training plans include Magic Mile sessions — periodic timed one-mile efforts that give you a benchmark for estimating your current pace and setting realistic race goals. A Magic Mile is useful for tracking training progress, but it does not count as official runDisney proof of time. runDisney specifically excludes training runs and self-timed performances. Glass Slipper Run training plans build Magic Miles into the programme alongside easy runs, cadence drills and progressive long runs, making them one of the most motivating elements of the training calendar.
What happens on race morning?
Your assigned start group will appear on your race bib. Check the official runner information and event guide before race morning for your required arrival and start times, as these details vary by race and year.
Do not rely on being able to change groups when you arrive. runDisney confirms that no start-group changes are made at the Expo or on race morning.
runDisney currently requires participants to maintain a minimum 16-minute-per-mile pace. Race officials monitor course pacing, so runners with concerns about the pace requirement should check the official Disney Princess Half Marathon Weekend race policies for their specific event.
Always check the rules for your specific event
runDisney proof-of-time rules, accepted race distances, qualifying windows and submission deadlines all change between race seasons. This article uses the 2027 Disney Princess Half Marathon as its reference example, but the requirements for your event may differ.
Before registering, submitting proof of time or planning around a specific start group, check the current Disney Princess Half Marathon proof-of-time requirements, the official race policies, and the runDisney FAQs for the most up-to-date information. Your start-group assignment matters far less to a good race day than your training preparation does.
Ready to start building towards race weekend? Glass Slipper Run provides free runDisney training plans for the Princess 5K, Princess 10K, Princess Half Marathon and Glass Slipper Challenge.