Player record

Markham, Don

ID 20274NYMaleInactive
Current rating512
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Wins

1

Indexed tournament wins

Losses

13

Indexed tournament losses

Matches

14

Decisive results

Win rate

7.1%

Across indexed matches

Peak rating

512

Highest rating in the available history.

Biggest upset

Not enough data

No qualifying upset available.

Biggest loss

Not enough data

No qualifying loss available.

Most frequent opponent

Calcagno, Joseph

2 matches

Open →

Rating trajectory

Published rating movement across recorded events.

Tournament history

2 tournament appearances · synced Aug 11, 2026, 2:32 AM

DateTournamentRating inRating afterPoints changedRecord
Jan 29, 2000Midtown Athletic Club TTTTournament · View matches503512+91W / 10L
Nov 6, 1999Rochester Get Acquainted OpenTournament · View matches · Initial rating 503Unrated503—0W / 3L