
Brendan's Angels In the Infield Monster Mash 5k is a running race on October 4, 2026 in Mckeesport, PA.
Get ready to run, walk, or crawl in your favorite costume!
The Monster Mash 5K is how we keep Brendan's giving spirit alive — a family-friendly race that turns a morning of running and walking into meaningful support for children, families and worthy organizations.
Whether you come to run, cheer, volunteer or sponsor, every part of the day helps power the causes we care about most.
Registration and T-Shirt pickup begin at 8:30am on race day. The run begins at 9:30am. Please register by September 20th to guarantee your T-Shirt.
Registration is available on this page, as well as the Monster Mash 5k Race website (Monster Mash 5K Race | Brendan's Angels). You do not need to register on both platforms.
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
70°
Typical Low
46°
Chance of Rain
37%
Based on US Climate Normals data from Mckeesport, 4 mi from the venue.
Population
17,520
as of 2023
City Elevation
758 ft
Nearest Airport
PIT
Pittsburgh International Airport · 22 mi
Time Zone
Eastern Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Every finish line starts with a single decision. Claim your spot at Brendan's Angels In the Infield Monster Mash 5k, put it on the calendar, and turn “someday” into a start date.
14
Days to train
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With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Brendan's Angels In the Infield Monster Mash 5k
Oct 4, 2026