Heiduck, Siegfried
1359​±87

In the rating history graph, the red solid line is the player’s rating, and the blue dotted lines are ±1 standard deviation. Click a red dot to see the player’s results for that event.

You may restrict the graph to a date range by entering an earliest date, most-recent date, or both:

• Rating History
• Player Info
• Match Search
• Rank