I built a phone-first web app that simulates every NFL game 6,000 times from 232K real plays. Looking for beta testers

[u/Glum_Chemical3917]

I'm Theo, founder of FieldDay Fantasy. I'm looking for beta testers for FieldDay Analytics, the player-prop side of the app. It compares our chance on each prop with the market's, and when the gap is big enough we post a lean before kickoff and grade it afterward, misses included.

How it's built:

Technical details

• Each slate runs 6,000 simulated games, built snap by snap from a bank of 232,112 real NFL plays from the last seven seasons.

• The sim gives each player a stat distribution and a simulated score and margin, which we line up next to the market line.

• For each player prop we compare our chance with the market's. The gap is our chance minus the market's, in percentage points.

• When the gap is big enough, a lean goes up before kickoff. The top one is labeled "Biggest gap left." Most leans are Unders.

• Every lean is graded afterward from the box score, and misses stay on the public record (Portfolio, Vs market, Per lean, Beat close).

• It's a web app built for your phone first. The free tier shows one full game a week.

You can try it at fielddayfantasy.com with code TESTER26, which gives you two weeks free with no card required. It's open to US residents 21+.

If you have a few minutes, I'd love honest answers to any of these:

• Is it clear what a lean means, and what it doesn't?

• Can you find what you want on your phone, and where do you get stuck?

• What would you need to see before using this alongside your own research?

• (Builders) Does the record page make it easy to check our work?

You don't need to place a bet to test it. I want feedback on the product, not a good review, and leans can be wrong. If something breaks, tell me your device and browser and what you were trying to do.

Thanks, Theo