Fri, Sep 11, 2026

Prefix Charity 5K Fun Run & Car Show

Rochester Hills, MI

Registration openAnnual since at least 2024
5K1 Mile
Register · From $15

About the Prefix Charity 5K Fun Run & Car Show

The course runs on the Clinton River Trail, right next to the Prefix headquarters. The shorter distance turns around and comes back on the same stretch of trail, while the longer route continues further along it. Expect a paved, shaded path through a wooded corridor, the kind of surface that works for most paces and most footwear. The finish runs through the car show, which is a nice touch.

The event has a patriotic theme, and food trucks and an ice cream truck are on site after the race. There is also a beer tent and a live band. The car show runs alongside the post-race area, so there is plenty to linger over once you are done.

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Finish-Time Stats

Going by the 2025 results, this is a small, friendly field, and the spread of finish times is wide, so this is a mostly recreational race rather than one for club runners.

3.1 Miles · 2025 results

100finishers
15:10winner
36:05median
1:03:41cutoff

Top 3: Aiden Baugh (15:10) · Noah Verdejo (18:10) · Jake Fairbairn (18:56)

1 Miles · 2025 results

20finishers
9:42winner
16:27median
24:39cutoff

Top 3: S. McCaffery (9:42) · John McCaffery (9:43) · M. Nass (11:40)

The Prefix Charity 5K Fun Run & Car Show has been held every year since at least 2024. That is as far back as RunSignup's records for this race go, so it may well be older.

Where Would You Finish?

Enter a finish time to see where it lands against the most recent 3.1 Miles results.

Median

See how your time stacks up nationally →

How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.

Distances & Start Times

3.1 Miles9/11/2026 18:30$25
1 Mile9/11/2026 18:30$15

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Common Questions About the Prefix Charity 5K Fun Run & Car Show

Will I finish last at the Prefix Charity 5K Fun Run & Car Show?

Almost certainly not. Half the 3.1 Miles field finished slower than 36:05, and the last recorded finisher came in around 1:03:41, so there is a long tail of runners behind the middle of the pack. Most fields are far slower than people expect.

Is the Prefix Charity 5K Fun Run & Car Show a good first 3.1 Miles?

It is a small race (100 finishers), which is friendlier and less intimidating than a big-city event, though the field thins out. There is no qualifying time, and the finish-time spread above shows how varied the field really is. If it is your first 3.1 Miles, that spread matters more than the winner's time.

How competitive is the Prefix Charity 5K Fun Run & Car Show?

The 3.1 Miles winner ran 15:10 while the median finisher took 36:05. That spread points to a broad, mostly recreational field rather than a race dominated by club runners.

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