GRITWorking name — we'll rename it, like Chronicle

Most "training plans" are a static calendar you fall off by week three. This is a loop that reacts to you — your body, your weight, your week, the race ahead — and reshapes itself every time you report back.

Then it loops — every day, every week, all the way to the start line.

And it's shaped like Chronicle — a clean cover with tabs:

Set it once, update it whenever. Everything the engine needs to build a plan that's actually yours.

• The race (or races) & date. It counts backward and builds the whole runway.
• Body composition. Height, starting weight, goal weight, and your athletic activity level.
• Where you are now. Current weekly mileage/hours and your longest recent effort.
• Your week & days off. Which days you can train, which are protected, and honestly how much time.
• Gym access — or not. Full gym → real lifting. No gym → all-natural, bodyweight workouts.
• The food you eat & want to eat. It designs your fuel plan around foods you'll actually enjoy.
• History & injuries. What flares up — so it trains around you, not into a wall.

The part you kept coming back to. Life happens — the plan bends so the goal doesn't break.

Not a generic template off one blog. My research scout goes deep on how the best actually train, distills it into a knowledge base the app runs on, and gets sharper the more it's used.

• Studies the top ultrarunners & their coaches — the patterns they share: volume, vert, long-run structure, easy-vs-hard balance, fueling, taper.
• Plus the sports science underneath — so it's principle-driven, not copycat.
• Builds original plans from those principles — a smart synthesis of the top ten beats copying any one of them (and keeps us clean to sell).
• Tuned to your race — terrain, climate, timing, and what actually breaks people on that course.

This one isn't just for you — it's a product. That shapes it from day one, and the economics are friendlier than they sound.

• Accounts & each user's own data — everyone gets their own plan, private to them.
• Subscriptions built in — Stripe handles the money; you keep the recurring revenue.
• Commercial-clean — original content and properly licensed tools only, so it's safe to sell at scale.
• Installable like Chronicle — launch straight to phones; app stores optional later.

Pick a race and it builds the peak block for that race's demands — a flat road marathon and a rocky Hill Country ultra are not the same animal.

• Bandera 25K / 50K / 100K → rocky, technical, relentless climbs, run in January — so vert, downhill legs, and cold long runs through the holidays.
• A road marathon → turnover, tempo, flat long runs.
• A triathlon → swim/bike/run balance, bricks, pacing across three sports.

Same way Chronicle got built — real and live fast, then layered. Each phase works on its own.