Wins
6
Indexed tournament wins
Player record
Jaime J. Rosario
Losses
9
Indexed tournament losses
Matches
15
Decisive results
Win rate
40.0%
Across indexed matches
Peak rating
1,009
Highest rating in the available history.
Biggest upset
Ron Costanzo
Westfield May Open · May 15, 1994 · +191 rating
Open →Biggest loss
Joel Hammersmith
NTTC October Open · Oct 9, 1994 · -233 rating
Open →Most frequent opponent
Roger Brown
2 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
3 tournament appearances · synced Aug 27, 2026, 2:27 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Oct 9, 1994 | NTTC October OpenTournament · View matches | 1,009 | 965 | -44+0 / -44 | 3W / 5L |
| May 15, 1994 | Westfield May OpenTournament · View matches | 983 | 1,009 | +26+46 / -20 | 2W / 2L |
| Apr 10, 1994 | Westfield April OpenTournament · View matches | 983 | 983 | 0+0 / 0 | 1W / 2L |
1–3 of 3
Page 1 of 1