Martian Flow Fantasy Sports
NFL DFS Lineup BuilderMartian Flow helps DraftKings and FanDuel players analyze a slate, simulate outcomes, control exposures, and build CSV-ready lineup portfolios without giving up their own strategy.
Free, no account: 3 FanDuel single-game lineups from your own MVP, fade and stack choices. See how it works
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Slate-aware DFS intelligence that weighs projections, game environment, availability, value, ceiling, simulations and recent changes — then surfaces what deserves a closer look.
Run up to 50,000 versions of the slate and see which players, stacks and game environments keep showing up in the best outcomes.
Set only what you care about — locks, exclusions, exposure caps, stacks — or set nothing at all. Martian Flow handles the rest of the portfolio.
Internal live testing has produced a first-place lineup.
One live test build produced a lineup that tied for first place in its contest. See every published result, losses included.
We’d love to hear your ideas, suggestions, or anything you think we could improve.
Pick a slate and a lineup count. The optimizer searches every legal lineup under the salary cap and selects the whole portfolio together, so exposure, overlap and stack coverage are decided with the full set in view. Published slates come with Martian Flow projections; you can upload your own.
Set a minimum, maximum or exact exposure for any player, lock or exclude anyone, and control the Captain or MVP seat separately on single-game slates. Players ruled out or inactive are removed automatically.
Quarterbacks are paired with their own pass catchers by default. The Stacking section lets you require QB + 1, QB + 2 or a bring-back in the share of lineups you choose, and on single-game slates rotate the MVP through a strong core.
Ask Gus about value plays, the best game to stack or how much exposure a player deserves. When you ask him to build, he proposes a plan you approve first, and every instruction becomes a visible rule — your own settings always win.
After a build, review every player’s exposure, the stack mixture, how similar the lineups are, and whether each rule you set was met — before a single entry is uploaded.
NFL Classic and Single Game (Showdown Captain, FanDuel MVP) and PGA tournaments on both sites, exported as the upload file each site accepts.
Martian Flow does not predict results or promise winnings. Daily fantasy involves risk, and most entries lose.
