Wins
7
Indexed tournament wins
Player record
Ko, Calvin
Losses
7
Indexed tournament losses
Matches
14
Decisive results
Win rate
50.0%
Across indexed matches
Peak rating
875
Highest rating in the available history.
Biggest upset
Not enough data
No qualifying upset available.
Biggest loss
Bair-Madrigal, Ryan
MATTC October Open · Oct 16, 2005 · -104 rating
Open →Most frequent opponent
Bair-Madrigal, Ryan
1 match
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
2 tournament appearances · synced Aug 8, 2026, 2:22 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Oct 16, 2005 | MATTC October OpenTournament · View matches | 874 | 875 | +1 | 3W / 3L |
| Apr 17, 2005 | 2005 PA State Championship (ClTournament · View matches · Initial rating 874 | Unrated | 874 | — | 4W / 4L |
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