⚖ Compare Reports
Upload two saved Performance Analysis reports and see exactly what changed — every metric, side by side, with the delta highlighted. Works for one player's progress over time, or head-to-head between two different players.
1 Load two reports
Both must be report.md files downloaded from Performance Analysis. Load the same player's report from two points in time to track progress, or two different players' reports for a head-to-head comparison — both are supported.
Player A
Drop report.md here — or
Player B
Drop report.md here — or
Overview
By color
As White
As Black
By time control
Game-phase accuracy & errors
Tactics & errors
Patterns
Openings
Openings played in both reports show a score delta. Openings only in one report are marked new/dropped.
Openings by time control
The same opening breakdown, split per time control — surfaces cases like "Blitz prep improved but Bullet got worse" that the blended Openings table above hides.
📈 Trend across reports
Load three or more saved reports for the same player to see score and accuracy plotted over time — more signal than a single before/after snapshot. Drop them all at once or add more later.
Drop 2+ report.md files here — or