Wins
93
Indexed tournament wins
Player record
John Ackerman
Losses
70
Indexed tournament losses
Matches
163
Decisive results
Win rate
57.1%
Across indexed matches
Peak rating
1,500
Highest rating in the available history.
Biggest upset
Seemant Teotia
Porky's Fall Classic · Oct 15, 2006 · +448 rating
Open →Biggest loss
Lee Ford
Porky's Fall Classic Open · Oct 9, 2005 · -657 rating
Open →Most frequent opponent
Richard (Rich) Haraldson
3 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
24 tournament appearances · synced Aug 26, 2026, 2:26 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Aug 18, 2018 | 2018 Minnesota Summer Super Giant RRTournament · View matches | 1,308 | 1,315 | +7+16 / -9 | 1W / 6L |
| Mar 11, 2017 | LYTTC "FIT" OpenTournament · View matches | 1,403 | 1,308 | -95+2 / -97 | 5W / 4L |
| Mar 8, 2015 | 2015 Arnold Table Tennis ChallengeTournament · View matches | 1,381 | 1,403 | +22 | 6W / 3L |
| Jan 26, 2014 | 2014 Minnesota State ChampionshipsTournament · View matches | 1,388 | 1,381 | -7 | 2W / 2L |
| Jul 25, 2010 | Lake Superior International OpenTournament · View matches | 1,425 | 1,388 | -37+0 / -37 | 3W / 7L |
| Jan 25, 2009 | Minnesota State ChampionshipsTournament · View matches | 1,445 | 1,425 | -20+0 / -20 | 2W / 1L |
| Jan 27, 2008 | 2008 Minnesota State ChampionshipTournament · View matches | 1,500 | 1,445 | -55+0 / -55 | 0W / 2L |
| Jun 3, 2007 | 2007 Minnesota OpenTournament · View matches · USATT readjusted 1,345 → 1,460 | 1,345 | 1,500 | +40+49 / -9 | 6W / 3L |
| Jan 28, 2007 | 2007 Minnesota State ChampionsTournament · View matches | 1,395 | 1,345 | -50 | 2W / 4L |
| Dec 30, 2006 | Killerspin Holiday OpenTournament · View matches | 1,387 | 1,395 | +8+76 / -68 | 3W / 4L |
| Oct 15, 2006 | Porky's Fall ClassicTournament · View matches · USATT readjusted 1,244 → 1,310 | 1,244 | 1,387 | +77+79 / -2 | 5W / 3L |
| Apr 23, 2006 | 2006 Minnesota OpenTournament · View matches | 1,349 | 1,244 | -105+0 / -105 | 0W / 5L |
| Dec 30, 2005 | 2005 Killerspin Holiday OpenTournament · View matches | 1,148 | 1,349 | +201 | 8W / 1L |
| Dec 4, 2005 | All Tree Service OpenTournament · View matches | 1,162 | 1,148 | -14+0 / -14 | 2W / 4L |
| Oct 9, 2005 | Porky's Fall Classic OpenTournament · View matches | 1,240 | 1,162 | -78+2 / -80 | 1W / 3L |
| Apr 24, 2005 | Buckeye Open 2005Tournament · View matches | 1,218 | 1,240 | +22+39 / -17 | 5W / 3L |
| Jan 30, 2005 | 2005 MN State TT ChampionshipsTournament · View matches | 1,226 | 1,218 | -8 | 3W / 3L |
| Oct 17, 2004 | Highland OpenTournament · View matches | 1,005 | 1,226 | +221 | 8W / 2L |
| Aug 28, 2004 | NAC Summer Giant RRTournament · View matches | 1,011 | 1,005 | -6 | 4W / 2L |
| May 16, 2004 | 40th St. Joseph Valley OpenTournament · View matches | 887 | 1,011 | +124 | 8W / 3L |
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