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Built by Racers, for Racers

Your Pit Box.
On the Cloud.

MZS is the race management platform that brings your setups, parts, sponsors, valuation, and race-day intel into one login. Stop running your program out of notebooks and group texts. Run it like a pro.

No credit cardCancel any timeYour data stays yours
Command Center
Welcome, User.
Race Day is 7 days out
Next: Peoria · Apr 24
Race Readiness Score
92%
You're ahead of schedule for Peoria.
● On Track
The Shop
The Race
The Biz
The AI
The Team
4
Critical Alerts
5
Sponsors Need Attn.
1
Setup Item Left
Built for
Open Wheel Modifieds·Late Models·Sprint Cars·Street Stocks·Any Dirt Class
The Racer's Problem

You're a driver, a crew chief,
and a small business owner.

Most racers try to run that stack with a notebook, a group text, and a shoebox of receipts. It works — until it doesn't. MZS is the one place it all lives.

Without MZS

  • Setup sheets scattered across notebooks and your phone
  • Sponsor renewals you forgot about until it's too late
  • No idea what your sponsorship is actually worth
  • Parts inventory that lives in your head
  • No clean way to show sponsors the ROI
  • Race-day decisions based on guesswork

With MZS

  • 🗂️Every setup — by track, by tire, by car — one search away
  • 🤝Sponsor renewal alerts and contract tracking, automatic
  • 💰A sponsorship valuation number you can defend with data
  • 🔩Parts Tracker with critical stock alerts
  • 📊Monthly ROI PDFs your sponsors actually open
  • 🌦️Weather, Tire Tracker, and Tuning Guide before you pull off the trailer
The Platform

Five hubs. One race program.

Your login opens the Command Center. From there, everything you need to run the season is one click away — organized the way a race program actually runs.

🔧

The Shop

Chassis · Inventory · Prep
  • Setup Sheets
  • Measurements
  • Tuning Guide
  • Tire Tracker
  • Parts Tracker
  • Engine Manager
  • Maintenance Checklists
  • Hauler Checklist
  • Spring LabOut Now
🏁

The Race

Schedule · Results · Intel
  • Upcoming Schedule
  • Track Directory
  • Race Intel
  • Weather Station
  • Race Results
  • Season History
  • Analytics
💼

The Biz

Marketing · Finance
  • Sponsor CRM
  • Valuation Calculator
  • Social Metrics
  • Page Builder
  • Public Hero Card
  • Expense Tracking
  • Income Tracking
  • Monthly ROI Reports
  • MarketplaceSoon
  • StoreSoon
🤖

The AI

AI-Powered Assistance
  • Tuning Guide — AI Recommendations
  • AI Crew ChiefOut Now
  • Spring Lab AI AnalysisSoon
  • Garage AISoon

We ship AI that's actually useful — and we tell you when it isn't ready yet. No vaporware here.

👥

The Team

Management · Support
  • Team Members
  • Driver Profile
  • Share Center / QR
  • Role-Based Permissions
  • Blog & Support
  • Direct Bug Reporting
📅

The Schedule

Season Calendar
  • Race Calendar
  • Countdown to Next Event
  • Team To-Do Tasks
  • Renewal Reminders

If it's on the calendar, it triggers your Race Readiness Score.

The Biz · Valuation Calculator

Know what your ride
is actually worth.

Most racers walk into sponsor meetings with a number they pulled out of thin air. MZS builds your valuation from real data — your race schedule, crowd size, social reach, merch, and appearance value.

  • Plug in your race schedule, crowd size, and media reach
  • Factor in social engagement, merch, and appearances
  • Growth Simulator shows you what adding a race or a follower does to your value
  • Export a clean, branded valuation PDF for your next sponsor pitch
Sponsorship Valuation
CalculatorGrowth Sim
Races / Season
20
Avg Crowd
1,500
Total Followers
5,000
Engagement
3.5%
Merch Sold / Yr
200
Appearances
4
Estimated Annual Value
$42,850
Defensible. Data-backed. Ready to send.
LM#4 — Lernerville · Dry Slick
Saved · 2 hrs ago
RF Spring
275 lb
LF Spring
225 lb
Stagger
1.25"
Crossweight
54.8%
Rear Tire
Hoosier D55
Wedge
+3/4 turn
Tuning Guide · AI

“Track surface is drying fast. Consider dropping LR pressure 1 psi and softening rear right shock by one position.”

The Shop · Setups + Tuning Guide

Every setup.
Every track. Every tire.

Build chassis setups by car and track. Pull them up at the next race by condition — dry slick, tacky, rubbered in. The Tuning Guide reads your setup and gives you real recommendations, not generic advice.

  • Setup sheets organized by car, track, and condition
  • Measurements library — scale, corner weights, stagger
  • Tuning Guide with AI recommendations (live today)
  • Tire Tracker for wear patterns and compound history
  • Only you see your setup data. Period.
The Race · Race Day Intelligence

Know the track
before you hit the gate.

Track-specific weather, surface conditions, and historical race intel. Show up ready to run — not ready to guess.

  • Hour-by-hour weather for your track — not your zip code
  • Surface / humidity / wind factors for setup decisions
  • Race Intel: historical notes by track and class
  • Hauler Checklist so nothing gets left in the shop
Lernerville Speedway
Sarver, PA · Saturday 7:00 PM
Feature Night
68°
Partly Cloudy
Falling temp after 9pm
Humidity
62%
Wind
NW 7
Dew Pt
54°
Rain %
10%
Surface will rubber up early. Dial rear right pressure down 1 psi pre-heat.
Your Data Promise

Your Setups. Your Secrets.
Your Data. Period.

Setup sheets, tuning data, and shock numbers are your competitive advantage. We never sell, aggregate, or share them. Not to other racers. Not to teams. Not to anyone.

🔐

Your Data, Your Control

Only you see your setups, shocks, and race notes. Our team can't browse your data.

🚫

No Data Mining

We don't aggregate "insights" from your setup data and sell them to competitors.

🗑️

Delete Anytime

Leave with your data, or have it permanently erased. Your call, not ours.

Early Drivers

Built with racers.
For racers.

MZS is early — and that's on purpose. We'd rather ship real features with real drivers than marketing promises with nobody using them.

I built MZS because I'm a dirt modified driver who was tired of running my race program out of notebooks and group texts. Everything in here is because I needed it myself.

MC
Mike Chasteen Jr.
Co-Founder · #C40 Open Wheel Modified
Coming Soon

We're earning testimonials the honest way — with drivers actually using the platform.

?
Real Driver
Using MZS right now
Pricing

Simple, transparent, honest.

Free forever on the entry plan. Real pricing, no seat fees, no “contact sales.” Features marked Soonare on the roadmap — you're not paying for them yet.

Free
$0
Forever
  • Hero Card
  • 3 Sponsors
  • 10 Results/mo
  • Calendar
  • 1 Car
Start Free
Crew Chief Basic
$19.99
per month · $199.99/yr (save 2 months)
  • Unlimited Sponsors
  • Monthly Reports / PDF
  • 100 Parts Tracker
  • Unlimited Results/mo
  • Spring Lab
  • 8 Setup Sheets
Start Free Trial
Most Popular
Crew Chief Standard
$49.99
per month · $499.99/yr (save 2 months)
  • Unlimited Setup Sheets
  • Unlimited Measurements
  • Unlimited Race Day Intelligence
  • Weather Station
  • + Everything in Basic
Start Free Trial
Crew Chief Pro
$99.99
per month · Save $200 with annual
  • AI Crew Chief (50/mo)
  • Unlimited Multi-User Teams
  • Role Permissions
  • + Everything in Standard
Start Free Trial

Features marked Soon are on the roadmap — you're not paying for them yet. See full feature comparison →

Questions

Answers, straight up.

Is the AI Crew Chief really live?
Yes. AI Crew Chief is live on the Pro plan with 50 runs a month. The Tuning Guide also has AI recommendations on Standard and up. Spring Lab AI Analysis (the deep shock-rate modeling) is still in development — you won't pay for it until it ships.
Do I need a credit card to start?
No. Free plan is free forever with no card on file. Paid plans have a 14-day free trial — if you want to try Standard, you add a card but you can cancel before day 14 with zero charge.
What happens to my data if I leave?
Export it and go. Or request permanent deletion. We don't hold your setup library hostage. Your data is yours — full stop.
Who built this?
MZS was built by an open-wheel dirt modified driver who was tired of running his race program in notebooks. Every feature is something we needed ourselves. No VC spreadsheet. Just racers solving our own problems.
What classes does MZS support?
Anything on dirt. Open Wheel Modifieds, Late Models, Sprints, Street Stocks, Pro Mods, Hobby Stocks — the platform is class-agnostic. If you run on dirt, MZS fits.

Stop running
your race team from
a notebook.

Free for 14 days. No credit card. Cancel any time.
Your setups stay yours.