Wins
365
Indexed tournament wins
Player record
John Harrington
Losses
240
Indexed tournament losses
Matches
605
Decisive results
Win rate
60.3%
Across indexed matches
Peak rating
1,890
Highest rating in the available history.
Biggest upset
Samuel Liang
2002 Meiklejohn Nat Sr TTT · Jun 9, 2002 · +267 rating
Open →Biggest loss
Shi, Ming
Meiklejohn North American Seni · Jun 3, 2007 · -455 rating
Open →Most frequent opponent
Baldner, Roger
10 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
106 tournament appearances · synced Aug 8, 2026, 3:34 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Jul 8, 2006 | U.S. OpenTournament · View matches | 1,642 | 1,751 | +109 | 9W / 3L |
| Jun 4, 2006 | Meiklejohn North American SeniorsTournament · View matches | 1,626 | 1,642 | +16+19 / -3 | 5W / 2L |
| May 7, 2006 | 2006 San Diego OpenTournament · View matches | 1,680 | 1,626 | -54+2 / -56 | 2W / 4L |
| Apr 23, 2006 | Arizona ClosedTournament · View matches | 1,676 | 1,680 | +4+10 / -6 | 5W / 4L |
| Feb 19, 2006 | Arizona OpenTournament · View matches | 1,709 | 1,676 | -33+4 / -37 | 5W / 4L |
| Dec 17, 2005 | 2005 US Nationals ChampionshipTournament · View matches | 1,702 | 1,709 | +7+8 / -1 | 3W / 1L |
| Dec 4, 2005 | Valley of the Sun OpenTournament · View matches | 1,706 | 1,702 | -4+0 / -4 | 0W / 3L |
| Aug 21, 2005 | SoCal OpenTournament · View matches | 1,746 | 1,706 | -40+2 / -42 | 2W / 3L |
| Aug 14, 2005 | Arizona SizzlerTournament · View matches | 1,753 | 1,746 | -7+19 / -26 | 4W / 3L |
| Jul 10, 2005 | US OpenTournament · View matches | 1,762 | 1,753 | -9+1 / -10 | 1W / 2L |
| Jun 12, 2005 | Best of the West OpenTournament · View matches | 1,747 | 1,762 | +15+36 / -21 | 3W / 4L |
| Jun 5, 2005 | Meiklejohn National Seniors OpTournament · View matches | 1,754 | 1,747 | -7+2 / -9 | 2W / 2L |
| Apr 17, 2005 | Arizona ClosedTournament · View matches | 1,730 | 1,754 | +24 | 9W / 1L |
| Mar 13, 2005 | Grand Canyon State Winter GameTournament · View matches | 1,728 | 1,730 | +2+2 / 0 | 2W / 0L |
| Feb 20, 2005 | Arizona OpenTournament · View matches | 1,738 | 1,728 | -10+26 / -36 | 8W / 4L |
| Dec 18, 2004 | 2004 USA Nationals ChampionshipTournament · View matches | 1,746 | 1,738 | -8+2 / -10 | 3W / 2L |
| Dec 5, 2004 | Valley of the Sun OpenTournament · View matches | 1,750 | 1,746 | -4 | 8W / 3L |
| Oct 10, 2004 | SoCal OpenTournament · View matches | 1,740 | 1,750 | +10+10 / 0 | 3W / 1L |
| Aug 15, 2004 | Arizona Sizzler OpenTournament · View matches | 1,777 | 1,740 | -37+12 / -49 | 6W / 6L |
| Jul 4, 2004 | US OpenTournament · View matches | 1,796 | 1,777 | -19+2 / -21 | 2W / 2L |