1 unit to 100, run by the model. Six steps, each ranked by the model’s own edge, every winning step rolled into the next. Profit comes off the table on the way up, so from step 2 the ladder is playing with the house's money. This is not the Official Card — it is a separate automated challenge, tracked in public on its own.
Each step is one play — single or parlay, any sport — ranked on the model’s edge and required to clear 4%. Win and the whole return rolls forward, minus the skim. Lose and that ladder is over; a fresh one starts at 1 unit, so there is always an active challenge running.
The skim is the part most ladders leave out. Doubling six times turns 1 unit into 64, not 100 — the difference is profit taken along the way. 1 unit comes off at step 2, so the buy-in is already back and every rung after that is a freeroll. A ladder that busts at step 5 has banked 4u against a 1u buy-in — still up 3 units.
Steps are posted before they start and graded off final scores, like every other board here. A failed ladder stays on this page. A challenge that only shows its winners is a highlight reel, not a record — and most ladders do not reach step 6.