The Builder
What RotoCore does, step by step, and what each plan includes
NFL Builder
RotoCore is a DIY lineup builder for DraftKings NFL classic and showdown contests. You bring the takes; it builds the combinations. Pull any slate, edit FPPG and exposure, set stacks and rules, and build up to 150 unique lineups. It does not tell you who to play.
Game Styles
2
Max Lineups
150
Free Lineups
20
Demo Builds
3, no account
Build real lineups on this week's main slate, then create a free account for 20 lineups per build.
What it is
- Your numbers. FPPG is each player's DraftKings season average, not a projection. Type a new number or nudge it 5% at a time; the build uses yours. Free.
- Your stacks and rules. QB with one to four pass catchers, RB + DST, RBs as partners, a bring-back from the other side, a share of the build per shape. Season Pass.
- Your pool, your exposure. Trash by hand or by salary, FPPG floor or injury status. Min and max exposure per player, a salary floor, 2 to 6 unique players between lineups. Free.
- Lots of unique lineups, then prune. Up to 150 per build; prune four ways with a preview, delete, duplicate, dedupe, compare builds, export a DraftKings-ready CSV (Season Pass).
What it is not
- No projections. The number you see is the season average; change it to what you believe.
- No ownership estimates, no simulations. If you want to be contrarian, you pick the players; RotoCore makes sure they show up across your build.
- DraftKings NFL only: classic and captain/showdown slates. Lineups are edited at the lineup level; there is no one-player swap inside a lineup.
- Data refreshes three times a day (salaries, pool, odds, injury tags), weather hourly. Not live: check late injury news yourself.
