Player record

David Ko

ID 76553NYMaleInactive

David Ko's USATT rating is 1,173.

USATT rating1,173
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Wins

47

Indexed tournament wins

Losses

31

Indexed tournament losses

Matches

78

Decisive results

Win rate

60.3%

Across indexed matches

Peak rating

1,173

Highest rating in the available history.

Biggest upset

Austin Stouffer

2008 JOOLA American Teams Open · Nov 30, 2008 · +655 rating

Open →

Biggest loss

Matthew Kim

2009 CCC Cup · Oct 10, 2009 · -466 rating

Open →

Most frequent opponent

Andrew Min

4 matches

Open →

Rating trajectory

Published rating movement across recorded events.

Tournament history

9 tournament appearances · synced Aug 26, 2026, 2:26 AM

DateTournamentRating inRating afterPoints changedRecord
Oct 10, 20092009 CCC CupTournament · View matches1,1651,173+88W / 2L
Jul 12, 20092009 NYTT July OpenTournament · View matches · USATT readjusted 1,032 → 1,0911,0321,165+74+77 / -34W / 3L
May 3, 2009NYTT May OpenTournament · View matches1,0221,032+10+44 / -3410W / 4L
Mar 8, 2009NYTT March OpenTournament · View matches9931,022+29+42 / -137W / 3L
Jan 25, 2009NYTT January OpenTournament · View matches1,015993-222W / 2L
Jan 11, 2009NJTTC January OpenTournament · View matches9471,015+68+78 / -107W / 3L
Nov 30, 20082008 JOOLA American Teams OpenTournament · View matches506947+4417W / 7L
Oct 26, 20089th FIT Open TT ChampionshipsTournament · View matches461506+45+45 / 01W / 2L
Mar 30, 20088th FIT Open TT ChampionshipsTournament · View matches · Initial rating 461Unrated461—1W / 5L