How to Use SaberSim

Everything starts by selecting the slate you want to play. Click the Add Slate or the + button to add a new slate. Navigate to specific days by clicking the date window.

Once the slate is loaded, the next step is to upload your entries file. Uploading your file first makes lineup entry faster, easier, and more accurate. It also ensures that the lineups you build are properly tied to the contests you’ve already entered.

To do this, you'll need to have already registered for your contests on the DFS site you're playing. Next, click the upload button in the top corner, download the template file from DraftKings via the popup window, and then upload to SaberSim.

After your contests are in place, it’s time to build lineups. SaberSim uses a simple process called Build, Review, Revise. You’ll always start with the Build step, and we always recommend users run their first set of lineups without making any changes. Unlike a traditional optimizer, SaberSim doesn’t rely on averages or rules you have to configure manually. Instead, every game on the slate is simulated play-by-play hundreds of thousands of times, and those simulations feed directly into the lineups you generate.

This means the sims themselves already provide valuable insights before you add in your own takes, and you don’t need to set complicated rules or stacking requirements just to get decent lineups. For the first build, all you need to do is make two small adjustments to player projections, as required by DraftKings, and then hit Build Lineups.

After lineups are done building, contest sims will start automatically (Starter plan and above). Otherwise, you can trigger them manually by clicking the “Run Contest Sims” button. Contest sims take the thousands of lineups you’ve just built and grade them inside simulated versions of the actual contests you’re playing.

This matters because different contests require different strategies. A single-entry tournament doesn’t play the same as a large-field multi-entry GPP. The contest sims handle this complexity for you and identify the most profitable lineups for each specific contest.

Once your contest sims have run, the diversification process kicks in. This step ensures you’re not overexposed to just a handful of players or outcomes. DFS is unpredictable, and even the best plays can fail on any given night. Diversification balances your portfolio so you’re taking smart risks without being all-in on fragile outcomes.

At this point, SaberSim also creates lineup groups automatically. Each contest you’re playing will have its own group, already attached to that contest. For most users, this setup is the most optimal.

The review and revise stage is where you start aligning your portfolio with your own strategy for the slate.Pay attention to the exposure column, which shows you the percentage of your lineups containing a given player, and leverage, which shows your a player's exposure relative to the field’s projected ownership.

Review the players where you’re most over or under the field and decide if that matches the way you want to attack the slate. The sims already provide valuable perspective, but this is where you can layer on your own research and strategy.

When adjusting exposures, work from the widest lens to the narrowest: start with stacks, then move to team stacks, and finally to individual players.

If you don’t want certain stacks in your portfolio, you can uncheck them, apply the change, and SaberSim will automatically rebuild a balanced set of lineups around your request. If your exposure requests can’t be met, simply rebuild lineups and SaberSim will generate a new set with your adjustments incorporated.

This process is iterative. You build, review, revise, and rebuild as needed. Each cycle refines your portfolio until you’re satisfied with your overall strategy for the slate.

When you’re happy with your lineups, the final step is to save and upload them. Click Save All then download your updated entries file. From there, upload that file back to your DFS site and your entries will be updated with your new lineups.

For additional help, email us at [email protected].