THE SOLVER has three main tools for DFS contests. The optimizer and the lineup builder help you build lineups. The simulator tests lineups in a DraftKings or FanDuel contest to give you an idea of how they perform.
Optimizer
Can build 1 or up to 1000 lineups with as few or as many rules as required.
Lineup Builder
Can build up to 3000 lineups much quicker than the optimizer, but accepts fewer rules and restrictions.
Simulator
Simulates lineups in a DraftKings or FanDuel contest to give you an idea of how the lineup performs against a real field.
Optimizer
Builds lineups
The optimizer builds lineups from the rules you set. Use simple one-click correlations or the full advanced settings.
Use it when your lineups must follow hard rules: exposure limits, player groups, stacks, and custom rules. It is the slower way to build, but every lineup follows every rule.
The lineup builder is a faster way to build lineups. It is included with every optimizer subscription and sits on its own tab inside the optimizer. It accepts far fewer rules and settings than the optimizer, which is what makes it fast.
1
Pick a projection set.
2
Enter a lineup count.
3
Set diversity from tight to wide.
4
Build.
Then filter the results, pick the lineups you want, and save them, download them, or send them to the simulator.
Use it when you want a lot of lineups fast and plan to let the simulator pick the best ones.
Simulator
Simulates lineups
The simulator takes up to 3000 lineups and runs them in a DraftKings or FanDuel contest. You get projected ROI, mean and ceiling, cash rate, and where each lineup is expected to finish.
Use it when you want to know how your lineups will do and which ones to enter. It works on lineups from the optimizer, the lineup builder, or an upload. Simulator FAQ
Which one should I use?
You have hard rules
Optimizer
Every lineup must follow specific stacks, groups, or exposure limits.
You want volume, fast
Lineup Builder
You want a big pool of lineups to test in the simulator.
You already have lineups
Simulator
You want to know how they will do and which ones to enter.
The optimizer and the lineup builder build lineups. The optimizer is for hard rules. The lineup builder is for speed. The simulator shows how any lineup performs in a contest.
