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Negative Split Productions
An NSP timing box and tumbler at a Houston start line before the gun
About Negative Split Productions

We make races run right.

A negative split means running the second half faster than the first. It takes discipline and smart pacing, and it is how we approach every event we touch.

546+
Events supported
338,640
Participants scored
12+
Years running
77
Events produced
Certifications

Certified across the entire RunSignup system, the platform most of the endurance industry runs on, so registration, scoring, and live tracking all connect.

RunSignup Certified TimerRaceDay CertifiedRaceDay Scoring CertifiedRaceJoy Certified
How we work

Three things we do not compromise on

Not a values list. These are the three decisions that shape how every event we touch actually runs.

01

We answer fast, every time

Most replies go out within the hour, all of them the same day, race week included.

02

We do the hard part before race day

Every event gets a documented plan, a briefed crew, and equipment staged before we arrive. Things still change and we adapt, but your race is not where we figure things out.

03

We produce, so we understand

We run our own events every year. When your permit falls through or the weather turns, we have been on your side of it and can help come up with a plan.

Tony Sapp on the mic at a finish line
How it started

From athlete to organizer

Negative Split Productions was formed in 2014, two months before Tony left an engineering job on the International Space Station program to produce races full time. Today we produce three events of our own and work more than 100 events a year in total.

Track record

Events and series we have created

12+ years of building events from scratch, in Houston and well outside it.

We produce these today
Houston Kids Tri
Houston Kids TriathlonLargest kids' triathlon in the world
Houston Resolution Run
Houston Resolution RunNew Year's morning, downtown
Houston Fourth Fest
Houston Fourth FestIndependence Day, with a beer mile
Also built by usSeveral we still time.
Run Houston! Race SeriesFive a year. We still time it
Bayou City Half SeriesThree a year
Lonestar Splash n DashThree a year
Extreme distance, outside TexasExtreme-distance triathlon in two countries, built and run by us.
Alaskaman Extreme TriGirdwood, Alaska
Iceland Extreme TriOlafsvik, Iceland
Alohaman Extreme TriWaikoloa Village, Hawaii
Who we work with
Cal Tri Events
All Community Events
Family Point Resources
Onurmark Productions
U.S. Vets Houston
HCAL
The team

Who you will be working with

Tony Sapp at a start line with timing equipment set up behind him
Tony SappOwner

Directs our own events and runs timing for everyone else's. The person who answers your email.

Ryan Jensen setting up on site
Ryan JensenOperations manager

Runs logistics, gear, and the crew schedule. If your event needs something on site, Ryan is the one who makes sure it is there.

Plus the crew

A pool of contractors who set your finish line up at 4am, run the chute, and load out after the last finisher. Early mornings, real work, and the reason race day looks easy.

Join the crew
Finishers crossing the line at an NSP event
Athlete First Fund

Cost should not keep anyone off the start line

A pay-it-forward donation at registration, plus entries we hold back, covers race fees for athletes who need help at our own events. One hundred percent of donations go to entries.

Ready to PR your next event?

Send us your date and the details and we will come back with a quote, usually within the hour.