Florissant St. Patrick's Day 5K Run 2027
- Date
- Sunday, March 14, 2027
- Start time
- 8:45 AM start (Chicago)
- Location
- Florissant, Missouri
- Entry fee
- From Free · goes up to $30 on Dec 2, 2026
- Included with entry
- Includes a shirt
Registration is open.
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Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Leprechaun Dash Kids Run 8 years old and younger | Kids | Mar 14, 20278:45 AM | $5 | – |
| Florissant Shamrock Run/Walk - ANGEL Only Registration | 5K | Mar 14, 20279:00 AM | Free | – |
| Florissant Shamrock Run/Walk | 5K | Mar 14, 20279:05 AM | $25$30 after Dec 2, 2026 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
The 5K fee goes up to $30 on Dec 2, 2026.
Race day planning
Entry fee schedule
- Leprechaun Dash Kids Run 8 years old and younger: $5 until Mar 14.
- Florissant Shamrock Run/Walk - ANGEL Only Registration: Free until Mar 14.
- Florissant Shamrock Run/Walk: $25 until Dec 2, then $30 until Mar 14.
Online registration closes Mar 14, 2027, unless the race fills first.
What a typical finish looks like
A typical finisher at a 5K in Missouri runs 36:58, about 11:54 a mile, based on 246 races with published results. Women typically finish in 40:11 and men in 32:32.
Light and altitude
Sunrise on race morning is at about 7:16 AM, and the Leprechaun Dash Kids Run 8 years old and younger starts at 8:45 AM. The start sits about 560 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
50 Rue St Francois Street, Florissant, MO 63031
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
2026 results
All results (4 years)Aggregated from official results for Florissant St. Patrick's Day 5K Run. Individual finisher names are not stored here.
How fast do you need to be at Florissant St. Patrick's Day 5K Run?
In 2026, the fastest tenth finished in 26:48 or better, the top quarter in 33:32, and half the field in 47:12; the last tenth came in after 1:01:26.
| Age | Women | Men |
|---|---|---|
| Under 20 | 33:43 | 29:54 |
| 20-29 | 33:42 | 25:13 |
| 30-39 | 26:48 | 26:24 |
| 40-49 | 30:03 | 25:42 |
| 50-59 | 46:29 | n/a |
| 60-69 | 48:24 | 46:56 |
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 2026.
Finishers by year
Down 10 percent since 2022.
All events combined, from official results.
Florissant St. Patrick's Day 5K Run 5K year by year
From 2022 to 2026, the field went from 208 to 187 finishers, and the median time rose from 37:29 to 47:12.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2026 | 187 (-8%) | 47:12 | under 26:48 | 17:10 |
| 2024 | 204 (+16%) | 41:31 | under 25:47 | 18:31 |
| 2023 | 176 (-15%) | 38:34 | under 24:34 | 17:59 |
| 2022 | 208 | 37:29 | under 24:51 | 16:08 |
From each year's official results for the 5K; virtual options are left out.
How fast is it?
Slower than most Missouri 5Ks
The fastest quarter of the 2026 5K field finished under 33:32, against 29:53 in a typical Missouri 5K, so times here run 12 percent slower.
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 March 14 the day usually runs from 37°F at dawn to 60°F in the afternoon, with measurable rain on about 23% of days. Cold snaps dip to 27°F and hot years reach 75°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.
Race details
- Where
- 50 Rue St Francois Street, Florissant, MO 63031Map
- Course
- Road
- Start elevation
- About 560 feet
- Included with entry
- T-Shirt; Short Sleeve
- Distances
- 5K, Kids
- Editions
- 2027 (Mar 14, 2027), 2026 (Mar 15, 2026), 2025 (Mar 16, 2025), 2024 (Mar 10, 2024), 2023 (Mar 12, 2023), 2022 (Mar 13, 2022)
Organize this race? Add details or a correction
Plan your race
Quick answers
- When is Florissant St. Patrick's Day 5K Run?
- Sunday, March 14, 2027, starting at 8:45 AM.
- How much does it cost?
- Entry starts at Free before processing fees, and rises to $30 on Dec 2, 2026.
- When does registration close?
- Online registration closes Mar 14, 2027, 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.
- What distances can I run?
- 5K, Kids.
- How big is it, and how fast?
- In 2026, 187 runners finished the Florissant Shamrock Run/Walk; the median finish was 47:12 and the winner ran 17:10.
- Is it a fast course?
- The fastest quarter of the 2026 5K field finished under 33:32, against 29:53 in a typical Missouri 5K, so times here run 12 percent slower.
- Where does it start?
- 50 Rue St Francois Street, Florissant, MO 63031.
From the organizers
The City of Florissant is extremely proud of our heritage- Founded by French, Built by German, Run by Irish. We were the initial location for the St. Patrick's Day Parade, and we are beyond excited to bring an event such as this back to great area. Florissant is truly a city of festivals, and we are looking to build on that rich tradition by hosting a St. Patrick's Day Parade, Festival and 5K. Please join us for our 5K Run, taking a tour through scenic Old Town Florissant showcasing our beautiful history and providing a bit of a challenge for our runners!
For more information, visit our website: www.florissantstpatricksparade.com.