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
Livshin, Boris
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
Ragnar Fahlstrom
9 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
122 tournament appearances · synced Aug 9, 2026, 4:22 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Oct 21, 2001 | High Desert OpenTournament · View matches | 1,802 | 1,809 | +7+9 / -2 | 3W / 3L |
| Aug 19, 2001 | San Francisco Summer OpenTournament · View matches | 1,804 | 1,802 | -2+4 / -6 | 2W / 5L |
| Jul 22, 2001 | High Desert InvitationalTournament · View matches | 1,809 | 1,804 | -5+3 / -8 | 2W / 2L |
| Jun 24, 2001 | California State OpenTournament · View matches | 1,818 | 1,809 | -9+0 / -9 | 2W / 3L |
| Jun 10, 2001 | Meiklejohn National Seniors TTTournament · View matches | 1,849 | 1,818 | -31+13 / -44 | 5W / 5L |
| May 13, 2001 | San Diego Spring 2001Tournament · View matches | 1,768 | 1,849 | +81 | 7W / 6L |
| Feb 25, 2001 | Golden Western Open - CATournament · View matches | 1,756 | 1,768 | +12+15 / -3 | 2W / 3L |
| Dec 17, 2000 | 2000 USATT National ChampionshipTournament · View matches | 1,831 | 1,756 | -75 | 4W / 8L |
| Nov 5, 2000 | High Desert OpenTournament · View matches | 1,844 | 1,831 | -13+10 / -23 | 3W / 4L |
| Oct 6, 2000 | Western Open on the No American TourTournament · View matches | 1,815 | 1,844 | +29+39 / -10 | 8W / 4L |
| Jun 4, 2000 | Meiklejohn National Senior TTTTournament · View matches | 1,824 | 1,815 | -9 | 2W / 3L |
| Feb 6, 2000 | Golden Western States OpenTournament · View matches | 1,877 | 1,824 | -53+0 / -53 | 0W / 4L |
| Dec 19, 1999 | US NationalsTournament · View matches · USATT readjusted 1,748 → 1,851 | 1,748 | 1,877 | +26+44 / -18 | 10W / 5L |
| Nov 7, 1999 | High Desert OpenTournament · View matches | 1,768 | 1,748 | -20 | 3W / 2L |
| Jun 13, 1999 | Meiklejohn National Seniors TTTournament · View matches | 1,831 | 1,768 | -63+10 / -73 | 3W / 7L |
| May 1, 1999 | Sun City Open Senior TTTTournament · View matches | 1,795 | 1,831 | +36 | 3W / 1L |
| Dec 20, 1998 | 1998 USATT NationalsTournament · View matches | 1,777 | 1,795 | +18+44 / -26 | 6W / 7L |
| Dec 13, 1998 | Loma Linda 3rd Annual Stiga WaTournament · View matches | 1,784 | 1,777 | -7+3 / -10 | 1W / 1L |
| Jun 14, 1998 | Mieklejohn SeniorsTournament · View matches | 1,767 | 1,784 | +17+45 / -28 | 1W / 3L |
| Dec 21, 1997 | US NationalsTournament · View matches | 1,808 | 1,767 | -41+4 / -45 | 3W / 10L |