Swap Simulator

The Swap Simulator lets you simulate adding a player to your roster and immediately see the impact on your team’s category rankings, total points, and optimal lineup.

Where to Find It

You can access the swap simulator from three places:

1. Pickups tab — select a player to add and a player to drop, and the simulator appears automatically below
2. Player Detail Modal — click any player’s name, then go to the Swap tab
3. Compare Panel — select exactly 1 player on the Players page, then click the Swap button in the compare bar

How It Works

When you simulate a swap, the engine:

1. Takes your current roster’s projected stats
2. Removes the dropped player (if applicable)
3. Adds the new player
4. Re-optimizes your lineup to find the best slot assignments
5. Recalculates category totals, league rankings, and power rank

Reading the Results

Points Summary

The banner at the top shows:

• Before points → After points — your roto points total before and after
• Point change — green for improvement, red for decline
• Rank change — your power rank position (e.g., “1st → 1st” or “3rd → 2nd”)

Rankings View

Shows each scoring category with:

• Before rank — your current league rank in that category
• After rank — your projected rank after the swap
• Direction arrow — green up-arrow for improvement, red down-arrow for decline
• Change amount — how many positions you moved

Categories are split into Batting and Pitching sections.

Stats View

Toggle to Stats to see raw projected stat changes instead of rankings. Shows before/after values with deltas for each category.

Optimal Lineup

Click View Optimal Lineup to see how the optimizer would slot your players after the swap. The modal shows:

• Active lineup with optimal slot assignments
• Bench players
• Projected stats for each player in each category
• Diff indicators — players promoted from bench show a blue badge, players moved to bench show amber, and the newly added player is highlighted in green

Tips

Caution

The simulator uses Steamer projections for all calculations. Players without Steamer projections contribute zero to the simulation — check for “No proj” in the lineup view.

• A swap that drops your HLD rank but improves HR, R, and RBI by 2 ranks each is almost certainly worth it — look at the total points change to confirm
• Focus on the total points change rather than individual categories — a net gain of 2+ points is usually worth the move