Wins
340
Indexed tournament wins
Player record
Nobuhiko Koyama
Losses
319
Indexed tournament losses
Matches
659
Decisive results
Win rate
51.6%
Across indexed matches
Peak rating
1,716
Highest rating in the available history.
Biggest upset
Tan, Carl
2010 JOOLA N. American Teams · Nov 28, 2010 · +303 rating
Open →Biggest loss
Gomez, Ashley
2008 JOOLA American Teams Open · Nov 30, 2008 · -670 rating
Open →Most frequent opponent
Van Dusen, Philip
15 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
73 tournament appearances · synced Aug 8, 2026, 3:34 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Nov 27, 2011 | 2011 JOOLA N. American Teams OTournament · View matches | 1,716 | 1,712 | -4 | 1W / 13L |
| May 15, 2011 | 2011 Potomac Spring OpenTournament · View matches | 1,716 | 1,716 | 0+6 / -6 | 2W / 1L |
| Nov 28, 2010 | 2010 JOOLA N. American TeamsTournament · View matches · USATT readjusted 1,584 → 1,688 | 1,584 | 1,716 | +28+81 / -53 | 4W / 11L |
| Jul 3, 2010 | 2010 US OpenTournament · View matches | 1,611 | 1,584 | -27+5 / -32 | 1W / 4L |
| May 16, 2010 | 2010 Potomac Spring OpenTournament · View matches | 1,659 | 1,611 | -48 | 2W / 2L |
| Mar 28, 2010 | Club JOOLA Spring OpenTournament · View matches | 1,668 | 1,659 | -9+7 / -16 | 4W / 1L |
| Nov 29, 2009 | 2009 JOOLA N. American Teams OTournament · View matches | 1,537 | 1,668 | +131 | 3W / 10L |
| Nov 15, 2009 | 2009 Potomac Fall OpenTournament · View matches | 1,544 | 1,537 | -7+0 / -7 | 2W / 1L |
| Nov 30, 2008 | 2008 JOOLA American Teams OpenTournament · View matches | 1,556 | 1,544 | -12 | 4W / 8L |
| Oct 5, 2008 | Maryland CircuitTournament · View matches | 1,623 | 1,556 | -67+0 / -67 | 1W / 9L |
| Sep 21, 2008 | Club Joola September OpenTournament · View matches | 1,621 | 1,623 | +2+2 / 0 | 3W / 0L |
| Sep 7, 2008 | MDTTC Butterfly September OpenTournament · View matches | 1,637 | 1,621 | -16+0 / -16 | 4W / 1L |
| Nov 25, 2007 | 2007 JOOLA N. American Teams OTournament · View matches | 1,659 | 1,637 | -22 | 5W / 7L |
| Nov 26, 2006 | 2006 N. American Teams Open ChampionshipTournament · View matches | 1,594 | 1,659 | +65 | 9W / 4L |
| Sep 3, 2006 | Maryland CircuitTournament · View matches | 1,572 | 1,594 | +22+39 / -17 | 3W / 6L |
| Jul 8, 2006 | U.S. OpenTournament · View matches | 1,610 | 1,572 | -38+19 / -57 | 4W / 4L |
| Nov 27, 2005 | 2005 N. American Teams Open ChTournament · View matches | 1,545 | 1,610 | +65+82 / -17 | 6W / 8L |
| May 15, 2005 | Maryland CircuitTournament · View matches | 1,592 | 1,545 | -47+21 / -68 | 2W / 5L |
| Nov 28, 2004 | 2004 N. American Teams Open TTTournament · View matches | 1,582 | 1,592 | +10 | 16W / 9L |
| Oct 3, 2004 | Maryland CircuitTournament · View matches | 1,560 | 1,582 | +22+45 / -23 | 6W / 4L |
1–20 of 73
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