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| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Youth Duathlon | DuathlonRun 0.5 mi · Bike 3.5 mi · Run 0.5 mi | May 9, 20278:00 AM | $35$40 after Feb 1, 2027 | – |
| Duathlon Relay | DuathlonRelay or team | May 9, 20278:30 AM | $135$145 after Jan 1, 2027 | – |
| High School Individual | Duathlon | May 9, 20278:30 AM | $60$65 after Jan 1, 2027 | – |
| High School Relay | DuathlonRelay or team | May 9, 20278:30 AM | $95$105 after Jan 1, 2027 | – |
| Individual Duathlon | Duathlon | May 9, 20278:30 AM | $85$90 after Jan 1, 2027 | – |
| Individual Time Trial | Time Trial | May 9, 20278:35 AM | $35$40 after Jan 1, 2027 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
Online registration closes May 9, 2027, unless the race fills first.
Sunrise on race morning is at about 5:42 AM, and the Youth Duathlon starts at 8:00 AM. The start sits about 30 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
1 Heckscher State Pkwy, East Islip, NY 11730
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
Aggregated from official results (PR Timing) for Mighty Mother's Day Du and Time Trial. Individual finisher names are not stored here.
At the 2026 Individual Duathlon, the fastest tenth finished in 57:59 or better, the top quarter in 1:05:23, and half the field in 1:15:58; the last tenth came in after 1:32:23.
At the 2026 Youth Duathlon, the fastest tenth finished in 20:00 or better, the top quarter in 22:18, and half the field in 24:52; the last tenth came in after 33:00.
At the 2026 Duathlon Relay, the fastest tenth finished in 57:33 or better, the top quarter in 1:03:48, and half the field in 1:06:55; the last tenth came in after 1:27:21.
| Age | Women | Men |
|---|---|---|
| Under 20 | n/a | 51:00 |
| 20-29 | n/a | 57:59 |
| 30-39 | 1:21:34 | 53:57 |
| 40-49 | 1:04:45 | 1:01:06 |
| 50-59 | 1:09:35 | 1:06:10 |
| 60-69 | 1:17:25 | 1:11:15 |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
Where a finish time would have placed in 2026.
At the 2026 Individual Duathlon, the bike decided the most: the middle of the field lost about 7:36 to the top quarter there, 46% of the gap across the three legs.
Compared with a typical duathlon in New York, the median run 1 here was 5:03 slower, the bike 2:05 faster and the run 4:42 slower.
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| Run 1 | 12:16 | 14:40 | 16:28 | 19:02+ |
| T1 | 0:31 | 0:45 | 1:03 | 1:20+ |
| Bike | 30:22 | 33:36 | 38:35 | 44:12+ |
| T2 | 0:28 | 0:36 | 0:50 | 1:07+ |
| Run | 12:27 | 14:22 | 16:50 | 19:21+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
At the 2026 Youth Duathlon, the bike decided the most: the middle of the field lost about 3:40 to the top quarter there, 77% of the gap across the three legs.
Compared with a typical duathlon in New York, the median run 1 here was 7:48 faster, the bike 24:13 faster and the run 8:20 faster.
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| Run 1 | 3:01 | 3:19 | 3:37 | 4:01+ |
| T1 | 0:23 | 0:28 | 0:33 | 0:39+ |
| Bike | 12:40 | 14:04 | 16:27 | 20:13+ |
| T2 | 0:13 | 0:16 | 0:20 | 0:30+ |
| Run | 3:11 | 3:28 | 3:48 | 4:09+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
Down 6 percent since 2025.
All events combined, from official results.
From 2025 to 2026, the field went from 140 to 124 finishers, and the median time dropped from 1:19:43 to 1:15:58.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2026 | 124 (-11%) | 1:15:58 | under 57:59 | 44:48 |
| 2025 | 140 | 1:19:43 | under 57:28 | 49:51 |
From each year's official results for the Duathlon; virtual options are left out.
Around May 9 the day usually runs from 51°F at dawn to 65°F in the afternoon, with measurable rain on about 31% of days. Cold snaps dip to 44°F and hot years reach 71°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.
What the organizers of Mighty Mother's Day Du and Time Trial cover on their registration page, in brief.
Schedule and packet pickup
PACKET PICK-UP SCHEDULE. Please do NOT call Packet Pick-Up locations as they do NOT have information on the event. Email [email protected] for any event questions you have. OPTION 1: Thursday, May 6th - 5:00pm - 7:00pm at BABYLON BIKE…
Schedule and packet pickup
Sunday, May 9, 2027. NOTE: SOME TIMES ARE APPROXIMATE. 6:15am Check-in OPENS. 7:30am Check-in CLOSES. 8:15am Duathon pre-race briefing. 8:20am Time Trial pre-race briefing. 8:30am Duathlon race start. 8:35am Time Trial start. 9:45am First…
Schedule and packet pickup
YOUTH RACE. Ages: 7 - 14 years old. Youth Race Start Time: 8:00am, we strongly recommend you are at the race site by 7:00am. Course: Run: 1/2 mile around the grass field next to Transition Area. Bike: 1 loop - 3.5 miles (the same loop as…
Course
Rules and FAQ
1. We have a no refund policy. 2. If you would like to transfer your entry to a different race, there is a $25 transfer fee and you must transfer your entry at least 30 days prior to the race date OR you can volunteer at the event. - If…
Organize this race? Add details or a correction
The Mighty Mother's Day Duathlon is a great way to start your season! This event has been a mainstay on the multi-sport scene for over 25 years with a very flat 3 lap bike course and some grass and dirt on the run.
Celebrate the ladies in your life! Sparkling cider, chocolate and awards await you at the finish line!
Adult Race: Run: 1.8 miles, Bike: 10.5 miles, Second run: 1.8 miles
Youth Duathlon Start: 8:00am: Run: 1/2 mile, Bike: 3.5 miles, Run: 1/2 mile
Adult Duathlon Start: 8:30am
Time Trial Start: 8:35am. This is the bike portion only.
You are not guaranteed your t-shirt size if you register after May 3rd.