Wins
150
Indexed tournament wins
Player record
Ronald Arellano
Losses
100
Indexed tournament losses
Matches
250
Decisive results
Win rate
60.0%
Across indexed matches
Peak rating
2,116
Highest rating in the available history.
Biggest upset
Basir Sabeti
2010 US Nationals · Dec 18, 2010 · +230 rating
Open →Biggest loss
William Chen
Laguna Hills High School Open · Feb 28, 2015 · -403 rating
Open →Most frequent opponent
Chiyako Suzuki
5 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
37 tournament appearances · synced Aug 26, 2026, 2:23 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Dec 4, 2011 | ICC CA State OpenTournament · View matches | 2,093 | 2,110 | +17+27 / -10 | 5W / 4L |
| Sep 4, 2011 | LA Open TT Tournament 2011Tournament · View matches · USATT readjusted 2,026 → 2,076 | 2,026 | 2,093 | +17+49 / -32 | 8W / 6L |
| Mar 27, 2011 | Golden Western OpenTournament · View matches | 2,116 | 2,026 | -90 | 2W / 4L |
| Dec 18, 2010 | 2010 US NationalsTournament · View matches | 1,963 | 2,116 | +153 | 12W / 4L |
| Aug 29, 2010 | Pacific Coast OpenTournament · View matches | 1,995 | 1,963 | -32+0 / -32 | 1W / 4L |
| Jun 27, 2010 | California State OpenTournament · View matches | 1,982 | 1,995 | +13+15 / -2 | 3W / 2L |
| May 16, 2010 | Power Pong OpenTournament · View matches | 1,997 | 1,982 | -15+1 / -16 | 2W / 2L |
| Mar 28, 2010 | Golden Western OpenTournament · View matches | 2,004 | 1,997 | -7+9 / -16 | 2W / 3L |
| Mar 14, 2010 | Power Pong OpenTournament · View matches | 1,997 | 2,004 | +7 | 8W / 3L |
| Nov 1, 2009 | LATTA OpenTournament · View matches | 2,022 | 1,997 | -25+16 / -41 | 5W / 5L |
| Mar 29, 2009 | Golden Western OpenTournament · View matches | 2,047 | 2,022 | -25+0 / -25 | 1W / 4L |
| Mar 1, 2009 | Homenetmen Ararat TournamentTournament · View matches | 2,042 | 2,047 | +5+9 / -4 | 3W / 3L |
| Jul 5, 2008 | U.S. OpenTournament · View matches | 2,049 | 2,042 | -7+19 / -26 | 7W / 2L |
| Feb 17, 2008 | Northridge OpenTournament · View matches | 2,023 | 2,049 | +26+31 / -5 | 8W / 2L |
| Jan 12, 2008 | Power Pong January OpenTournament · View matches · USATT readjusted 1,935 → 1,987 | 1,935 | 2,023 | +36+38 / -2 | 3W / 3L |
| Sep 29, 2007 | Power Pong OpenTournament · View matches | 1,894 | 1,935 | +41+41 / 0 | 6W / 2L |
| May 27, 2007 | Golden State OpenTournament · View matches · Initial rating 1,894 | Unrated | 1,894 | — | 2W / 1L |
21–37 of 37
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