Wins
166
Indexed tournament wins
Player record
Vitkin, Semyon
Losses
134
Indexed tournament losses
Matches
300
Decisive results
Win rate
55.3%
Across indexed matches
Peak rating
1,677
Highest rating in the available history.
Biggest upset
Wetzler, Warren
Maryland Circuit · Apr 5, 1998 · +379 rating
Open →Biggest loss
Bob Haverstraw
Maryland Medallion Championshi · Jun 12, 1999 · -414 rating
Open →Most frequent opponent
Sumner, Lee
10 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
36 tournament appearances · synced Aug 9, 2026, 2:20 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Oct 3, 1998 | Maryland CircuitTournament · View matches | 1,553 | 1,580 | +27 | 3W / 4L |
| Sep 27, 1998 | MDTTC September OpenTournament · View matches | 1,547 | 1,553 | +6 | 4W / 4L |
| Aug 30, 1998 | MDTTC August OpenTournament · View matches | 1,569 | 1,547 | -22+0 / -22 | 1W / 5L |
| Jul 12, 1998 | Maryland CircuitTournament · View matches | 1,562 | 1,569 | +7 | 2W / 4L |
| Jun 14, 1998 | MDTTC June OpenTournament · View matches | 1,569 | 1,562 | -7+0 / -7 | 1W / 2L |
| Jun 7, 1998 | Maryland CircuitTournament · View matches | 1,504 | 1,569 | +65 | 3W / 4L |
| May 17, 1998 | Potomac Spring OpenTournament · View matches | 1,535 | 1,504 | -31+13 / -44 | 3W / 6L |
| May 16, 1998 | Maryland Medallion ChampionshipTournament · View matches | 1,529 | 1,535 | +6+10 / -4 | 5W / 4L |
| May 10, 1998 | MDTTC May OpenTournament · View matches | 1,517 | 1,529 | +12 | 4W / 4L |
| Apr 12, 1998 | MDTTC April OpenTournament · View matches | 1,531 | 1,517 | -14 | 5W / 2L |
| Apr 5, 1998 | Maryland CircuitTournament · View matches · USATT readjusted 1,261 → 1,480 | 1,261 | 1,531 | +51+62 / -11 | 8W / 3L |
| Mar 20, 1998 | 1998 Eastern OpenTournament · View matches | 1,216 | 1,261 | +45+45 / 0 | 2W / 0L |
| Mar 15, 1998 | MDTTC March OpenTournament · View matches | 1,204 | 1,216 | +12 | 3W / 4L |
| Feb 15, 1998 | MDTTC February OpenTournament · View matches | 1,009 | 1,204 | +195 | 7W / 2L |
| Feb 8, 1998 | Maryland CircuitTournament · View matches | 855 | 1,009 | +154 | 7W / 1L |
| Jan 11, 1998 | Maryland CircuitTournament · View matches · Initial rating 855 | Unrated | 855 | — | 4W / 5L |
21–36 of 36
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