Course
Jonas Cattell Course Map
A Historical Run to Commemorate Jonas Cattell's Warning Fort Mercer of Attack.
5K10 Mile
Jonas Cattell Memorial 10-mile Run & Fort Mercer 5K 2026
- Date
- Saturday, October 17, 2026
- Start time
- 8:00 AM start (New York)
- Location
- Haddonfield, New Jersey
- Entry fee
- From $20
- Included with entry
- Includes a shirt
- Fundraising
- Takes optional donations when you register
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Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Fort Mercer 5K | 5K | Oct 17, 20268:00 AM | $20 | – |
| Jonas Cattell 10-mile Run | 10 Mile | Oct 17, 20268:00 AM | $30 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
Race day planning
Entry fee schedule
- Fort Mercer 5K: $20 until Oct 16.
- Jonas Cattell 10-mile Run: $30 until Oct 16.
Online registration closes Oct 16, 2026, unless the race fills first.
Light and altitude
Sunrise on race morning is at about 7:11 AM, and the Fort Mercer 5K starts at 8:00 AM. The start sits about 100 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
Kings Hwy. & Mechanic St., Haddonfield, NJ 08033
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
2025 results
All results (5 years)Jonas Cattell 10-mile Run
99
finishers
1:27:40
median (8:46 /mi)
53:38
winning time
29% / 71%
women / men
Fort Mercer 5K
79
finishers
29:44
median (9:34 /mi)
18:13
winning time
43% / 57%
women / men
Aggregated from official results (TNT Event Management) for Jonas Cattell Memorial 10-mile Run & Fort Mercer 5K. Individual finisher names are not stored here.
How fast do you need to be at Jonas Cattell Memorial 10-mile Run & Fort Mercer 5K?
At the 2025 Jonas Cattell 10-mile Run, the fastest tenth finished in 1:12:00 or better, the top quarter in 1:19:36, and half the field in 1:27:40; the last tenth came in after 1:51:38.
At the 2025 Fort Mercer 5K, the fastest tenth finished in 21:56 or better, the top quarter in 24:34, and half the field in 29:44; the last tenth came in after 37:56.
| Age | Women | Men |
|---|---|---|
| 20-29 | n/a | 1:06:35 |
| 30-39 | 1:40:18 | 59:27 |
| 40-49 | 1:16:40 | 1:12:14 |
| 50-59 | 1:31:23 | 1:21:23 |
| 60-69 | n/a | 1:23:05 |
| 70+ | n/a | 1:32:16 |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
What would my time get me?
Where a finish time would have placed in 2025.
Finishers by year
Up 40 percent since 2021.
127
2021
169
2022
170
2023
194
2024
178
2025
All events combined, from official results.
Jonas Cattell Memorial 10-mile Run & Fort Mercer 5K 10 Mile year by year
From 2021 to 2025, the field went from 101 to 99 finishers, and the median time rose from 1:26:10 to 1:27:40.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2025 | 99 (-20%) | 1:27:40 | under 1:12:00 | 53:38 |
| 2024 | 123 (+3%) | 1:28:13 | under 1:11:45 | 53:40 |
| 2023 | 120 (-14%) | 1:27:20 | under 1:12:19 | 57:33 |
| 2022 | 140 (+39%) | 1:29:09 | under 1:12:57 | 55:32 |
| 2021 | 101 | 1:26:10 | under 1:12:43 | 59:40 |
From each year's official results for the 10 Mile; virtual options are left out.
How fast is it?
Faster than most US 10-mile races
The fastest quarter of the 2025 10-mile race field finished under 1:19:36, against 1:24:00 in a typical US 10-mile race, so times here run 5 percent faster.
- 5K: Faster than most New Jersey 5Ks. The fastest quarter of the 2025 5K field finished under 24:34, against 27:09 in a typical New Jersey 5K, so times here run 9 percent faster.
Compares the fastest quarter of each field, so walkers and first-timers do not skew it. It reflects the course and the field together: a flat course, cool weather, or a competitive crowd all make times faster.
Typical race-day weather
Around October 17 the day usually runs from 49°F at dawn to 67°F in the afternoon, with measurable rain on about 17% of days. Cold snaps dip to 43°F and hot years reach 77°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
From the race's page
What the organizers of Jonas Cattell Memorial 10-mile Run & Fort Mercer 5K cover on their registration page, in brief.
Race details
- Where
- Kings Hwy. & Mechanic St., Haddonfield, NJ 08033Map
- Course
- Road
- Start elevation
- About 100 feet
- Included with entry
- long sleeve shirt
- Donations
- Accepted when you register
- Distances
- 5K, 10 Mile
- Editions
- 2026 (Oct 17, 2026), 2025 (Oct 18, 2025), 2024 (Oct 19, 2024), 2023 (Oct 22, 2023), 2022 (Oct 23, 2022), 2021 (Oct 24, 2021)
Organize this race? Add details or a correction
Plan your race
Quick answers
- When is Jonas Cattell Memorial 10-mile Run & Fort Mercer 5K?
- Saturday, October 17, 2026, starting at 8:00 AM.
- How much does it cost?
- Entry starts at $20 before processing fees.
- When does registration close?
- Online registration closes Oct 16, 2026, unless the race fills first.
- Do runners get a shirt or medal?
- Entry includes a shirt, according to the race's registration page. Check it for sizes and whether kids' races get the same.
- Can I donate to a cause when I register?
- Yes. The registration form offers an optional donation, usually for the charity or nonprofit the race supports. The race's own page names the cause.
- What distances can I run?
- 5K, 10 Mile.
- How big is it, and how fast?
- In 2025, 99 runners finished the Jonas Cattell 10-mile Run; the median finish was 1:27:40 and the winner ran 53:38.
- Is it a fast course?
- The fastest quarter of the 2025 10-mile race field finished under 1:19:36, against 1:24:00 in a typical US 10-mile race, so times here run 5 percent faster.
- Where does it start?
- Kings Hwy. & Mechanic St., Haddonfield, NJ 08033.
From the organizers
A Historical Run to Commemorate Jonas Cattell's Warning Fort Mercer of Attack.
Transportation: Bus transportation will be provided from Red Bank Battlefield to the starting line in Haddonfield. Buses will leave Red Bank Battlefield at 7:00am. There will also be a bag drop at the starting line.
Awards: Presented to male and female winners in all divisions. Additional awards will be presented for achievement in special categories.
Entry Fee: 10-miler: $30.00, 5K: $20.00 Please make checks payable to: Gloucester County Parks and Recreation. Day of registration is cashless. Check or money order only.
Sponsored by: The Gloucester County Board of Commissioners, Frank J. DiMarco, Director, Jim Jefferson, Deputy Director.