Issaquah Schools Foundation Monster Mash 5K
- Date Sat 24th October 2026
- Time 10:00AM PDT
- Location Issaquah, Washington
- Price $39.80
- Races 2 races
- Distances 5km
Event summary
Get ready for a spooktacular day of fun at the Issaquah Schools Foundation Monster Mash 5K on Saturday, October 24th, 2026! Held in the beautiful city of Issaquah, King County, this community-focused, family-friendly event promises to be a thrilling experience for participants of all ages and abilities. Runners and walkers alike will enjoy a professionally chip-timed 5K course that features a flat, paved, out-and-back route, perfect for setting personal records or enjoying a leisurely stroll with loved ones.
The Monster Mash 5K is not just about the race; it's also an exciting opportunity to support local students across all 27 Issaquah School District schools. Participants are encouraged to don their most creative costumes for a chance to join in the festive spirit! With convenient onsite parking, phased start times, and plenty of activities, this event is designed to provide a fantastic experience for everyone involved. Don’t miss out—register by October 12th to secure your spot and receive a 2026 Monster Mash technical race tee and medal, along with free event photos and raffle tickets for fabulous prizes. Join us for a day of community, competition, and celebration!
The Monster Mash 5K is not just about the race; it's also an exciting opportunity to support local students across all 27 Issaquah School District schools. Participants are encouraged to don their most creative costumes for a chance to join in the festive spirit! With convenient onsite parking, phased start times, and plenty of activities, this event is designed to provide a fantastic experience for everyone involved. Don’t miss out—register by October 12th to secure your spot and receive a 2026 Monster Mash technical race tee and medal, along with free event photos and raffle tickets for fabulous prizes. Join us for a day of community, competition, and celebration!
Organiser's Description
HELP US RAISE A MONSTROUS AMOUNT OF SUPPORT FOR LOCAL STUDENTS ON OCTOBER 24TH! ISF MONSTER MASH 5K IS A COMMUNITY-BASED, FAMILY-FRIENDLY EVENT THAT RAISES FUNDS FOR PROGRAMS THAT SERVE STUDENTS ATTENDING ALL 27 ISD SCHOOLS. [https://isfdn.org/programs/funding-by-school/]
WE WELCOME ALL-AGES AND ABILITIES. CONVENIENT ONSITE PARKING, PHASED START TIMES, AND A PROFESSIONALLY CHIP-TIMED COURSE ENSURE A GREAT EXPERIENCE FOR ALL. YOULL APPRECIATE THE FLAT, PAVED, OUT-AND-BACK ROUTE WHETHER YOURE SETTING A NEW 5K PR OR ENJOYING A BRISK WALK TOGETHER AS A FAMILY! BRING YOUR CREATIVITY FESTIVE COSTUMES ARE ENCOURAGED!
THIS EVENT SELLS OUT EVERY YEAR, SO DON'T WAIT TO REGISTER! EVERY REGISTRATION SUBMITTED BY OCTOBER 12TH RECEIVES A 2026 MONSTER MASH TECHNICAL RACE TEE & MEDAL. REGISTRANTS RECEIVE FREE EVENT PHOTOS AND RAFFLE TICKETS FOR PRIZES AS WELL! PLACEMENT AWARDS FOR FASTEST FINISHING TIMES WILL ALSO BE PRESENTED. SEE BELOW FOR DETAILS.
WE WELCOME ALL-AGES AND ABILITIES. CONVENIENT ONSITE PARKING, PHASED START TIMES, AND A PROFESSIONALLY CHIP-TIMED COURSE ENSURE A GREAT EXPERIENCE FOR ALL. YOULL APPRECIATE THE FLAT, PAVED, OUT-AND-BACK ROUTE WHETHER YOURE SETTING A NEW 5K PR OR ENJOYING A BRISK WALK TOGETHER AS A FAMILY! BRING YOUR CREATIVITY FESTIVE COSTUMES ARE ENCOURAGED!
THIS EVENT SELLS OUT EVERY YEAR, SO DON'T WAIT TO REGISTER! EVERY REGISTRATION SUBMITTED BY OCTOBER 12TH RECEIVES A 2026 MONSTER MASH TECHNICAL RACE TEE & MEDAL. REGISTRANTS RECEIVE FREE EVENT PHOTOS AND RAFFLE TICKETS FOR PRIZES AS WELL! PLACEMENT AWARDS FOR FASTEST FINISHING TIMES WILL ALSO BE PRESENTED. SEE BELOW FOR DETAILS.
Races
-
In-Person 5K
Incl. $4.80 Fee & T-Shirt
Sat 24th October 2026 (10:00AM PDT)
$39.80
OPENS 10 SEPTechnical Race Tee & Medal Included -
Virtual 5K
Incl. $4.80 Fee & T-Shirt
$39.80
OPENS 10 SEPTechnical Race Tee & Medal Included. Pick-up at ISF required.
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4455 E Lake Sammamish Pkwy SE, Issaquah, 98029, WA, United States
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Issaquah Schools Foundation Monster Mash 5K
