What Is a Seed Time in Track?
August 10, 2026 · 6 min read
A seed time is the mark you enter a meet with. It is not a result. It is a prediction, submitted before the meet, and its only job is to tell the people running the competition where to put you.
Where they put you turns out to matter quite a lot.
What the meet does with it
Two things.
It sets your heat. Entries get sorted by seed time and split into heats, usually with the fastest athletes together in the final heat. Slower seeds run earlier in the session.
It sets your lane. Within a heat, the fastest seeds get the middle lanes, typically lanes 4 and 5, because those are the best lanes to run: gentlest turns in the sprints, best view of the field. Slower seeds get the outside and inside lanes.
In field events, the seed mark usually sets your order in the flight, and often which flight you are in.
Where your seed time comes from
Normally your best legal mark this season in that event. Your coach enters it, or it is pulled automatically from a results system.
If you have never run the event, you will be entered with an estimate from your coach, or as NT, meaning no time. NT is not an insult. It means unseeded, and it usually lands you in an early heat.
Why a fake seed time backfires, in both directions
This is the real reason people search this question, so here is the honest version.
Enter too fast and you get exposed. You are placed in the fastest heat, in a middle lane, next to athletes who are genuinely that quick. You run your own race two seconds behind them in front of everybody, and the results sheet records the gap permanently. Meet directors notice. Coaches notice more.
Enter too slow and you waste the race. Sandbagging sounds clever: run in a slow heat, win comfortably, look dominant. In practice you get an early heat with nobody to chase, which is the single worst environment for running fast. Sprinters and middle distance runners in particular run to the competition around them. A soft heat costs real time.
There is also a fairness dimension that officials take seriously. Deliberately misrepresenting a seed to land in an easier section is the sort of thing that gets an athlete pulled from a section, and occasionally from the meet.
The optimal seed is your honest current best. It is not a moral point, it is a tactical one: honest seeding puts you in a heat with people slightly faster than you, which is exactly where PRs happen.
Seed time is not your PR
Related, not the same.
Your PR is your lifetime best. Your SB is your best this season. Your seed time is what you entered with, which is usually your SB but can be an estimate, a converted mark, or NT. See PR vs PB vs SB for how those relate.
One consequence worth knowing: an entry list is full of seed times, not results. A rankings list built from entry data is not the same thing as a rankings list built from performances. When you are comparing yourself to a field, check which one you are looking at.
Converted seeds
Meets frequently receive marks that are not directly comparable, and they convert them before seeding:
- Hand timed to FAT, because a stopwatch mark cannot be seeded against camera-timed marks. See why the two are different numbers.
- Indoor to outdoor, or flat track to banked, since a 200m indoor lap is a different proposition. See indoor vs outdoor.
- 1600m to mile, and other near-distance equivalents.
If your seed looks wrong on the heat sheet, a conversion is usually why.
The recruiting angle
A coach reading about you does not care what you were seeded at. They care what you ran.
That is worth internalising, because entry lists and heat sheets circulate widely and are easy to mistake for results. What travels is the performance: the mark, the date, the meet, the wind, and whether the clock was automatic.
Those are the fields TrackReels requires on every reel, which is also why a mark posted there is seedable information rather than a screenshot. Have a look at any event leaderboard to see what a coach actually reads.