shamrock – Negative Split

Join us this weekend for Run The Night Glow 5k 🎆

Join us this weekend for Run The Night Glow 5k 🎆

Find a Race
Washington Races
SWAG RUN

SHAMROCK SHUFFLE

THE SPLIT

WINDERMERE MARATHON

SPOKENYA RUN

RUN THE NIGHT GLOW 5K

MT. SPOKANE TRAIL RUN

THE SPOKANE MARATHON

WILD MOOSE CHASE

HUFFIN’ FOR THE STUFFIN’

Idaho Races
SPRING DASH

CDA MARATHON

HIAWATHA SPRING TRAIL RUN

HIAWATHA FALL TRAIL RUN

HAYDEN LAKE MARATHON

HALLOWEEN HUSTLE

SANTA RUN

Oregon Races
CINCO DE MAYO

TIMBERLINE MARATHON

GRATEFUL DAD

THE GREAT PUMPKIN RUN

VIEW ALL RACES
About Us
shop
Who is Negative Split?
We’re a team of fitness junkies working our butts off to make sure you have a killer experience on event day.

shop
What We Do
We organize unforgettable races and events throughout the Pacific Northwest. Year over year, we have shown increases in participation and revenue.

shop
NEGATIVE SPLIT NEWS FEED
Check out what’s happening in the running & fitness community throughout the Pacific Northwest.

Meet the team
What We Do
News Feed
Get Involved
For Race Planners
shop
Chip Timing Services
Our services deliver accurate results and live updates to keep runners and spectators connected every step of the way.

shop
Race & Event Production
We provide anywhere from complete start-to-finish organization to managing just the smaller details for your events.

shop
Equipment Rentals
We have a full warehouse of equipment ready to meet all of your event needs.

Learn More
Learn More
Learn More

About Us
shop
Who is Negative Split?
We’re a team of fitness junkies working our butts off to make sure you have a killer experience on event day.

shop
What We Do
We organize unforgettable races and events throughout the Pacific Northwest. Year over year, we have shown increases in participation and revenue.

shop
NEGATIVE SPLIT NEWS FEED
Check out what’s happening in the running & fitness community throughout the Pacific Northwest.

Meet the team
What We Do
News Feed
News Feed
Get Involved
For Race Planners
shop
Chip Timing Services
Our services deliver accurate results and live updates to keep runners and spectators connected every step of the way.

shop
Race & Event Production
We provide anywhere from complete start-to-finish organization to managing just the smaller details for your events.

shop
Equipment Rentals
We have a full warehouse of equipment ready to meet all of your event needs.

Learn More
Learn More
Learn More

About Us
shop
Who is Negative Split?
We’re a team of fitness junkies working our butts off to make sure you have a killer experience on event day.

shop
What We Do
We organize unforgettable races and events throughout the Pacific Northwest. Year over year, we have shown increases in participation and revenue.

shop
NEGATIVE SPLIT NEWS FEED
Check out what’s happening in the running & fitness community throughout the Pacific Northwest.

Meet the team
What We Do
News Feed
News Feed
Get Involved
For Race Planners
shop
Chip Timing Services
Our services deliver accurate results and live updates to keep runners and spectators connected every step of the way.

shop
Race & Event Production
We provide anywhere from complete start-to-finish organization to managing just the smaller details for your events.

shop
Equipment Rentals
We have a full warehouse of equipment ready to meet all of your event needs.

Learn More
Learn More
Learn More

13 02, 2025

Register for Shamrock Shuffle presented by GMC of Riverfront Park

nsplitWP2025-09-04T10:57:32-07:00

Learn more about Shamrock Shuffle and register here.

Register for Shamrock Shuffle presented by GMC of Riverfront ParknsplitWP2025-09-04T10:57:32-07:00