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 |
|---|---|---|---|---|---|
| Sep 7, 1997 | Pacific Coast OpenTournament · View matches | 1,796 | 1,808 | +12 | 4W / 5L |
| Jun 8, 1997 | Meiklejohn Nat'l Seniors TTTTournament · View matches | 1,809 | 1,796 | -13+2 / -15 | 1W / 4L |
| May 3, 1997 | Sun City SeniorsTournament · View matches | 1,808 | 1,809 | +1 | 2W / 2L |
| Apr 27, 1997 | Thousand Oaks ClassicTournament · View matches | 1,822 | 1,808 | -14+16 / -30 | 2W / 4L |
| Apr 6, 1997 | Loma Linda OpenTournament · View matches | 1,804 | 1,822 | +18+35 / -17 | 4W / 4L |
| Dec 22, 1996 | 1996 U.S. NationalsTournament · View matches | 1,817 | 1,804 | -13+33 / -46 | 3W / 7L |
| Dec 1, 1996 | Loma Linda US Nationals Warm-uTournament · View matches | 1,823 | 1,817 | -6+6 / -12 | 2W / 2L |
| Nov 3, 1996 | Pacific Coast Memorial OpenTournament · View matches | 1,831 | 1,823 | -8+4 / -12 | 1W / 4L |
| Jun 9, 1996 | Meiklejohn National Seniors TTTournament · View matches | 1,887 | 1,831 | -56+0 / -56 | 0W / 5L |
| May 5, 1996 | Hawthorne TTTTournament · View matches | 1,807 | 1,887 | +80 | 9W / 4L |
| Dec 18, 1995 | USATT National ChampionshipsTournament · View matches | 1,736 | 1,807 | +71 | 8W / 7L |
| Oct 1, 1995 | Pacific CoastTournament · View matches | 1,749 | 1,736 | -13+8 / -21 | 4W / 3L |
| Jul 9, 1995 | US OpenTournament · View matches | 1,820 | 1,749 | -71 | 2W / 10L |
| Jul 3, 1995 | MeikleJohn National SeniorsTournament · View matches | 1,844 | 1,820 | -24 | 1W / 4L |
| Apr 2, 1995 | Thousand Oaks ClassicTournament · View matches | 1,794 | 1,844 | +50 | 2W / 3L |
| Mar 12, 1995 | Hawthorne/Northrop OpenTournament · View matches | 1,805 | 1,794 | -11 | 4W / 5L |
| Dec 18, 1994 | US NationalsTournament · View matches | 1,770 | 1,805 | +35+56 / -21 | 9W / 9L |
| Nov 20, 1994 | Pacific Coast OpenTournament · View matches | 1,784 | 1,770 | -14+28 / -42 | 3W / 5L |
| Jul 4, 1994 | US OpenTournament · View matches | 1,841 | 1,784 | -57+9 / -66 | 4W / 6L |
| Jun 27, 1994 | Meikle John National Seniors OTournament · View matches | 1,820 | 1,841 | +21 | 2W / 4L |