Wins
350
Indexed tournament wins
Player record
Hiroshi Koshimoto
Losses
981
Indexed tournament losses
Matches
1,331
Decisive results
Win rate
26.3%
Across indexed matches
Peak rating
1,672
Highest rating in the available history.
Biggest upset
Rowe, Larry
US Nationals · Dec 18, 1994 · +662 rating
Open →Biggest loss
Trudell, Robert
Colorado River Open · Mar 28, 1999 · -658 rating
Open →Most frequent opponent
Al Miller
9 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
113 tournament appearances · synced Aug 8, 2026, 3:34 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Dec 18, 2004 | 2004 USA Nationals ChampionshipTournament · View matches | 1,575 | 1,477 | -98+87 / -185 | 8W / 10L |
| Aug 29, 2004 | Pacific CoastTournament · View matches | 1,593 | 1,575 | -18 | 4W / 7L |
| Jul 4, 2004 | US OpenTournament · View matches | 1,571 | 1,593 | +22+32 / -10 | 5W / 9L |
| Mar 28, 2004 | Golden Western StatesTournament · View matches | 1,619 | 1,571 | -48+21 / -69 | 3W / 6L |
| Dec 20, 2003 | 2003 USA TT National ChampionshipTournament · View matches | 1,672 | 1,619 | -53+17 / -70 | 4W / 14L |
| Aug 24, 2003 | Pacific Coast OpenTournament · View matches · USATT readjusted 1,422 → 1,638 | 1,422 | 1,672 | +34+46 / -12 | 7W / 7L |
| Jul 6, 2003 | 2003 U.S. OpenTournament · View matches | 1,481 | 1,422 | -59+55 / -114 | 3W / 15L |
| Jun 29, 2003 | California State OpenTournament · View matches | 1,495 | 1,481 | -14+0 / -14 | 1W / 9L |
| Jun 8, 2003 | Meiklejohn National SeniorsTournament · View matches | 1,504 | 1,495 | -9+0 / -9 | 1W / 6L |
| Dec 22, 2002 | 2002 US National ChampionshipsTournament · View matches | 1,602 | 1,504 | -98+7 / -105 | 4W / 12L |
| Nov 24, 2002 | Power Pong November OpenTournament · View matches | 1,612 | 1,602 | -10+25 / -35 | 7W / 5L |
| Sep 29, 2002 | Pacific Coast OpenTournament · View matches | 1,563 | 1,612 | +49+56 / -7 | 7W / 7L |
| Sep 1, 2002 | California OpenTournament · View matches | 1,515 | 1,563 | +48 | 3W / 8L |
| Jun 9, 2002 | 2002 Meiklejohn Nat Sr TTTTournament · View matches | 1,572 | 1,515 | -57+0 / -57 | 0W / 8L |
| May 19, 2002 | Western Open on the 2002 StigaTournament · View matches | 1,575 | 1,572 | -3+5 / -8 | 2W / 7L |
| May 5, 2002 | Power Pong OpenTournament · View matches | 1,582 | 1,575 | -7+0 / -7 | 0W / 8L |
| Mar 23, 2002 | March PowerPong/Butterfly OpenTournament · View matches | 1,590 | 1,582 | -8+25 / -33 | 3W / 8L |
| Feb 10, 2002 | Power Pong-Butterfly OpenTournament · View matches | 1,602 | 1,590 | -12+3 / -15 | 1W / 6L |
| Jan 13, 2002 | Butterfly Power Pong OpenTournament · View matches | 1,602 | 1,602 | 0+0 / 0 | 0W / 6L |
| Dec 23, 2001 | 2001 USATT NationalsTournament · View matches | 1,565 | 1,602 | +37+109 / -72 | 7W / 8L |