Chalkboard DFS Optimizer

1 Upload your salary file

Export the salary CSV from any DraftKings or FanDuel contest (the "Export to CSV" / "Download players list" button) and drop it here. Classic and showdown (DraftKings Captain mode) slates are supported for NFL, college football, NBA, NHL and MLB.

Drop salary CSV here or choose file

2 Projections

Upload projections CSV Using the site's season averages until you upload projections. Columns recognised: name, team, proj/fpts, own, sd, ceil.

3 Player pool

4 Build settings

5 Lineups

How it works

Exact optimizer. Every lineup is solved with an integer-programming solver (HiGHS) running in your browser, so your files never leave your computer.
Full control. Locks, excludes, min/max exposure per player, stacking rules, bring-backs, team stacks (e.g. 4-3), "no players against my defense/pitcher/goalie", ownership caps, ownership fade, randomness, uniqueness, custom groups and showdown captain rules.
Correlated slate sims. Each build is simulated thousands of times with game- and team-level correlation, giving every lineup a median, 90th/99th percentile score and a boom rate.
Coming next: our own projections and ownership for every main slate, updated through the day, and a contest simulator that scores your whole set against a simulated field.