Wins
754
Indexed tournament wins
Player record
Lonergan, Sean Michael
Losses
366
Indexed tournament losses
Matches
1,120
Decisive results
Win rate
67.3%
Across indexed matches
Peak rating
2,615
Highest rating in the available history.
Biggest upset
Jimmy Butler
US Nationals · Dec 18, 1994 · +319 rating
Open →Biggest loss
Prakash, Kesh
MDTTC September Open · Sep 21, 1997 · -574 rating
Open →Most frequent opponent
David Yong-Xiang Zhuang
36 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
189 tournament appearances · synced Aug 11, 2026, 2:16 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Oct 12, 1997 | MDTTC October OpenTournament · View matches | 2,594 | 2,584 | -10+0 / -10 | 0W / 1L |
| Sep 28, 1997 | MATTC Septemter OpenTournament · View matches | 2,594 | 2,594 | 0+0 / 0 | 5W / 0L |
| Sep 21, 1997 | MDTTC September OpenTournament · View matches | 2,594 | 2,544 | -50+0 / -50 | 2W / 1L |
| Sep 14, 1997 | Louisana Open, America All-StaTournament · View matches | 2,498 | 2,594 | +96 | 11W / 4L |
| Aug 17, 1997 | Sun TV OpenTournament · View matches | 2,496 | 2,498 | +2+16 / -14 | 4W / 3L |
| Jul 6, 1997 | U.S. OpenTournament · View matches | 2,483 | 2,496 | +13+29 / -16 | 4W / 3L |
| Jun 22, 1997 | Texas OpenTournament · View matches | 2,478 | 2,486 | +8+10 / -2 | 3W / 1L |
| Jun 22, 1997 | MdTTC June OpenTournament · View matches | 2,486 | 2,483 | -3+1 / -4 | 1W / 1L |
| Jun 1, 1997 | Waterfront TTC Summer Warm-up Tournament · View matches | 2,482 | 2,478 | -4+1 / -5 | 3W / 2L |
| May 25, 1997 | MdTTC May OpenTournament · View matches | 2,482 | 2,482 | 0+0 / 0 | 1W / 1L |
| May 18, 1997 | May Westfield OpenTournament · View matches | 2,478 | 2,482 | +4+4 / 0 | 4W / 1L |
| May 11, 1997 | Potomac Spring OpenTournament · View matches | 2,512 | 2,478 | -34+1 / -35 | 2W / 2L |
| Apr 20, 1997 | MdTTC April OpenTournament · View matches | 2,512 | 2,512 | 0+0 / 0 | 5W / 0L |
| Mar 16, 1997 | 22nd Louisiana OpenTournament · View matches | 2,518 | 2,512 | -6 | 6W / 4L |
| Mar 7, 1997 | 1997 US World Team TrialsTournament · View matches | 2,526 | 2,518 | -8 | 0W / 2L |
| Dec 22, 1996 | 1996 U.S. NationalsTournament · View matches | 2,493 | 2,526 | +33+41 / -8 | 5W / 2L |
| Dec 1, 1996 | U.S. Open Team ChampionshipsTournament · View matches | 2,522 | 2,493 | -29 | 4W / 5L |
| Nov 24, 1996 | Potomac Fall OpenTournament · View matches | 2,523 | 2,522 | -1+1 / -2 | 3W / 2L |
| Nov 17, 1996 | MATTC November OpenTournament · View matches | 2,531 | 2,523 | -8+0 / -8 | 3W / 1L |
| Nov 10, 1996 | NTTC November OpenTournament · View matches | 2,528 | 2,531 | +3+3 / 0 | 2W / 0L |