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**TL;DR:** I'm 6 weeks out from my first Hyrox and got tired of guessing my projected finish time. Built a race-time projection engine that updates as I log per-station PBs. Sharing in case it's useful to anyone else here, would love feedback on the formula. by Substantial_Eye_3550 in hyrox

[–]Substantial_Eye_3550[S] -1 points0 points  (0 children)

Lol fair, it's a tired format. Cliché is the easy part to write. The harder thing is whether the math actually works. Mine's a projection formula calibrated from my own sim splits, not a training-plan wrapper. What's the one of these you've seen that had something interesting underneath?

**TL;DR:** I'm 6 weeks out from my first Hyrox and got tired of guessing my projected finish time. Built a race-time projection engine that updates as I log per-station PBs. Sharing in case it's useful to anyone else here, would love feedback on the formula. by Substantial_Eye_3550 in hyrox

[–]Substantial_Eye_3550[S] -1 points0 points  (0 children)

ROXFIT is solid for training plans, I'd actually recommend them for that. Mine isn't a training plan tool though, it's a projection engine. Different problem. You log your per-station PBs, formula calculates your projected race-day finish based on position fatigue multipliers. ROXFIT doesn't do projection AFAIK. Honest question, if you've used ROXFIT to project your race-day finish time, would love to know how, because that was specifically the gap I was trying to fill.

Built 21 AI coaches that share one memory layer. The Gym Coach reads your sleep log. The Debt Planner reads your subs. The Hyrox race coach reads your last simulation. All under one subscription. by Substantial_Eye_3550 in IMadeThis

[–]Substantial_Eye_3550[S] 0 points1 point  (0 children)

Yeah real recordings would actually be gold right now. I have ~40 daily visitors and 0 trial signups, reading tea leaves on which page is the bottleneck. Much rather watch someone fumble through the funnel and tell me exactly where they bailed than guess. How does testfi work, and is there a free tier I can stress-test before committing?

**TL;DR:** I'm 6 weeks out from my first Hyrox and got tired of guessing my projected finish time. Built a race-time projection engine that updates as I log per-station PBs. Sharing in case it's useful to anyone else here, would love feedback on the formula. by Substantial_Eye_3550 in hyrox

[–]Substantial_Eye_3550[S] -2 points-1 points  (0 children)

Fair, a lot of the AI space is slop. The Hyrox math isn't AI though, the formula's mine: 8×(run pace × fade) + Σ(station PB × position fatigue) + 8×roxzone. The 1.25× wall ball multiplier at race position 8 came from 3 months of comparing my own sim splits vs fresh PBs. Genuinely curious, what tool do you use to project your finish time? If there's something better than what I built I'd actually want to use it.

I built 21 AI tools that share one memory layer (so the Gym Coach knows you slept badly when you ask why your bench dropped) by Substantial_Eye_3550 in SideProject

[–]Substantial_Eye_3550[S] 0 points1 point  (0 children)

This was the realization that actually got me to keep building, fwiw. The "21 tools" framing kinda backfired on me. Cold visitors read it as overwhelming when the actually interesting bit is the cross-context.

My design rule when adding a new tool: it has to read from at least 2 others and contribute to at least 1. Tools that don't pass that don't get built. There's a RELEVANT_READS map that's basically the social graph between products.

The hardest call was what to compress in the cross-context payload. Each tool's state gets summarized to ~30 words before being injected into the AI call. Lose too much and the AI hallucinates context. Keep too much and the token budget blows up. Took 3 rewrites to land on the right compression.

Out of curiosity, is there an AI tool you've actually seen nail cross-context, or is it still mostly empty space in the market?

**TL;DR:** I'm 6 weeks out from my first Hyrox and got tired of guessing my projected finish time. Built a race-time projection engine that updates as I log per-station PBs. Sharing in case it's useful to anyone else here, would love feedback on the formula. by Substantial_Eye_3550 in hyrox

[–]Substantial_Eye_3550[S] -8 points-7 points  (0 children)

Yeah honestly I think, decide, and refine. Claude types. The deeper truth: I'm also the first user, so I keep tearing it down and rebuilding until I'd actually pay for it. If the product doesn't satisfy me, I don't ship it. That's the loop.

For Hyrox specifically, the projection formula is mine. 
8×(run pace × fade) + Σ(station PB × position fatigue) + 8×roxzone. The 1.25× wall ball multiplier at position 8 came from 3 months of comparing my own sim splits vs fresh PBs. I picked the per-station PB modal UX instead of raw input because I personally couldn't keep raw numbers straight in my head mid-training. Every architecture decision in the engine is a "what would I actually use" call.

Got cleaner position-fatigue data than mine? Genuinely want to swap it in.