Wins
412
Indexed tournament wins
Player record
Ralph Guillory
Losses
446
Indexed tournament losses
Matches
858
Decisive results
Win rate
48.0%
Across indexed matches
Peak rating
1,890
Highest rating in the available history.
Biggest upset
Boris Livshin
Hawthorne/Northrop Open · Mar 13, 1994 · +370 rating
Open →Biggest loss
Sara Gulabani
2018 Butterfly Southeastern Open · Oct 19, 2018 · -987 rating
Open →Most frequent opponent
Fahlstrom, Ragnar
9 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
122 tournament appearances · synced Aug 8, 2026, 3:34 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Mar 29, 2009 | Golden Western OpenTournament · View matches | 1,828 | 1,742 | -86+0 / -86 | 2W / 4L |
| Aug 31, 2008 | Pacific Coast OpenTournament · View matches | 1,824 | 1,828 | +4+9 / -5 | 3W / 2L |
| Jun 29, 2008 | California State OpenTournament · View matches · USATT readjusted 1,718 → 1,788 | 1,718 | 1,824 | +36+42 / -6 | 9W / 3L |
| Jun 8, 2008 | Meiklejohn North American SeniorsTournament · View matches | 1,733 | 1,718 | -15+10 / -25 | 3W / 3L |
| Apr 27, 2008 | 2008 San Diego OpenTournament · View matches | 1,754 | 1,733 | -21 | 3W / 3L |
| Mar 30, 2008 | Golden Western OpenTournament · View matches | 1,766 | 1,754 | -12 | 6W / 3L |
| Aug 26, 2007 | Pacific Coast OpenTournament · View matches | 1,770 | 1,766 | -4+17 / -21 | 3W / 4L |
| Jul 7, 2007 | U.S. Open ChampionshipsTournament · View matches | 1,846 | 1,770 | -76+5 / -81 | 5W / 8L |
| Jun 3, 2007 | Meiklejohn North American SeniTournament · View matches | 1,842 | 1,846 | +4+4 / 0 | 2W / 2L |
| Apr 10, 2007 | Golden Western OpenTournament · View matches | 1,854 | 1,842 | -12+1 / -13 | 3W / 2L |
| Dec 16, 2006 | U.S. National ChampionshipsTournament · View matches | 1,864 | 1,854 | -10+6 / -16 | 3W / 4L |
| Aug 27, 2006 | Pacific Coast OpenTournament · View matches | 1,890 | 1,864 | -26 | 4W / 2L |
| Jun 25, 2006 | California State OpenTournament · View matches | 1,744 | 1,890 | +146 | 12W / 3L |
| Jun 4, 2006 | Meiklejohn North American SeniorsTournament · View matches | 1,777 | 1,744 | -33+2 / -35 | 1W / 2L |
| Dec 17, 2005 | 2005 US Nationals ChampionshipTournament · View matches | 1,762 | 1,777 | +15+23 / -8 | 3W / 3L |
| Aug 28, 2005 | Pacific Coast OpenTournament · View matches | 1,792 | 1,762 | -30 | 5W / 3L |
| Jun 5, 2005 | Meiklejohn National Seniors OpTournament · View matches | 1,750 | 1,792 | +42+46 / -4 | 6W / 3L |
| Mar 27, 2005 | Golden Western StatesTournament · View matches | 1,730 | 1,750 | +20+22 / -2 | 8W / 1L |
| Mar 12, 2005 | Power Pong March OpenTournament · View matches | 1,732 | 1,730 | -2+12 / -14 | 3W / 2L |
| Feb 20, 2005 | Lechi/West Covina TTC OpenTournament · View matches | 1,772 | 1,732 | -40+15 / -55 | 5W / 3L |