Player record

Seidenfeld, Mitchell

ID 9877MNMaleActive
Current rating2,198
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Wins

375

Indexed tournament wins

Losses

147

Indexed tournament losses

Matches

522

Decisive results

Win rate

71.8%

Across indexed matches

Peak rating

2,333

Highest rating in the available history.

Biggest upset

Santiago, Rene

U.S. Open Team Championships · Dec 1, 1996 · +207 rating

Open →

Biggest loss

Miller, Greg

2004 Star of the North State Games · Jan 25, 2004 · -233 rating

Open →

Most frequent opponent

Curran, Nathaniel Ming

8 matches

Open →

Rating trajectory

Published rating movement across recorded events.

Tournament history

67 tournament appearances · synced Aug 8, 2026, 2:14 AM

DateTournamentRating inRating afterPoints changedRecord
Oct 15, 1995MN Open Fall ClassicTournament · View matches2,1412,125-164W / 1L
Jul 9, 1995US OpenTournament · View matches2,1162,141+25+28 / -36W / 3L
Feb 26, 1995MN Winter OpenTournament · View matches2,1182,116-2+0 / -23W / 1L
Dec 18, 1994US NationalsTournament · View matches2,1422,118-2414W / 4L
Aug 20, 1994Mid Summer ClassicTournament · View matches2,1472,142-5+0 / -53W / 1L
Apr 24, 1994Thousand Oaks ClassicTournament · View matches2,1472,14704W / 2L
Feb 26, 1994Winter ClassicTournament · View matches2,1522,147-5+0 / -52W / 1L