Lace Up for a Cause: The 9th Annual Lakeside 5K Brings Halloween Fun and Fundraising to Flower Mound on Oct. 31

Flower Mound’s Biggest Halloween Morning Starts at 6:30 a.m. at Lakeside Village

If your Halloween tradition leans toward earning your candy rather than just collecting it, the 9th Annual Lakeside 5K & Family Fun Day Benefiting Ally’s Wish has a full morning planned. The event runs Oct. 31 at Lakeside Village in Flower Mound, with the first wave going off at 6:30 a.m.

The format is straightforward: a timed 5K for runners who want to push the pace, and a 1-Mile Family Fun Run for those bringing younger kids or dogs into the mix. After the racing wraps, the event shifts into a broader community gathering with face painting, a trunk-or-treat, and not one but two costume contests — one for humans, one for dogs.

For a Halloween-morning event that starts before 7 a.m., the logistics matter. Lakeside Village sits within Flower Mound’s mixed-use Lakeside district, which means parking, walkability, and a ready-made backdrop for the festivities. Plan on dressing for the weather and the occasion simultaneously — costumes are very much part of the culture here, and the costume contest gives you a reason to commit.

What Ally’s Wish Does in Flower Mound

The race is the primary annual fundraiser for Ally’s Wish, a Flower Mound-based nonprofit. The organization’s mission centers on granting final wishes to local mothers in the late stages of terminal illness — allowing them to create lasting memories with their children before they die. These are not abstract beneficiaries; Ally’s Wish operates entirely within this community, and the families it serves live here.

Nine years in, the Lakeside 5K has become the organization’s signature public event, and it consistently draws a mix of competitive runners, costume-wearing families, and residents who show up mainly for the community atmosphere after the race. The dual structure — a real 5K alongside a casual one-miler — means there is a workable entry point for nearly everyone.

Race Day Breakdown

Here is how the morning sequences:

• 6:30 a.m. — Event begins at Lakeside Village
• 5K — Timed run, open to all ages
• 1-Mile Family Fun Run — Untimed, stroller- and dog-friendly
• Post-race — Costume contests (human and dog categories), face painting, trunk-or-treat

Registration details and entry fees are available directly through the Ally’s Wish site. If you have run this race in previous years, note that the organization handles sign-ups through an external platform linked from their website.

Costumes Are Part of the Race, Not an Afterthought

The dual costume contests are a structural element of the event, not a side note. The dog costume contest in particular tends to draw a crowd, and if Woof-O-Ween at Hound Mound Dog Park earlier in the month has you already planning your dog’s Halloween look, the Lakeside 5K gives you a second venue to debut it.

For the human contest, costumes that hold up through a 5K are their own category of achievement. Past participants have managed everything from full group themes to running-adapted versions of classic Halloween looks. There is no formal guidance on what qualifies as a winning costume — showing up in something is enough to be in the running.

A Practical Note on Oct. 31 Morning Traffic

Halloween morning in Flower Mound is quieter than the evening, but Lakeside Village sees its own traffic patterns around the event start. If you are driving in from the Highlands, the FM 2499 corridor, or the northern neighborhoods near Flower Mound Road, build in extra time before 6:30 a.m. The Lakeside district has structured parking, but it fills quickly once an event of this size is underway.

Dressing in costume for a predawn October morning in North Texas also means layering. Temperatures on Oct. 31 in this part of Denton County typically sit in the 50s at race time and climb through the morning. A light layer under or over your costume is worth planning for.

Nine Years Running

The fact that this race has reached its ninth year without losing its Halloween-morning identity says something about how it fits into Flower Mound’s event calendar. It occupies a specific niche — a legitimate race that also functions as a community gathering and a fundraiser for a nonprofit that most longtime residents can name. That combination is harder to sustain than it looks, and the Ally’s Wish team has kept it intact.

For anyone looking to start Halloween with something purposeful before the evening’s festivities take over, Oct. 31 at Lakeside Village offers a clear plan.