John Donaldson

USA · 68 yrs · K=10 · Peak 2460 (Jan 2004)

Best performance: 2462 at 2nd Edmonton International tournament(Best of 2007)

OCT26 Rating

2416

Live Rating

2416.0

Change

0.0

Games Played

How live ratings are calculated

Rating History · Classical

Loading chart…

Official classical rating by month

List	Rating	Change
Oct 2026	2416	0
Sep 2026	2416	0
Aug 2026	2416	0
Jul 2026	2416	0
Jun 2026	2416	0
May 2026	2416	0
Apr 2026	2416	0
Mar 2026	2416	0
Feb 2026	2416	0
Jan 2026	2416	0
Dec 2025	2416	0
Nov 2025	2416	0

Classical games since the October list

No rated standard games this rating periodsince the OCT26 list (Oct 1, 2026)

	Last played	Score	TPR
	2021 Berkeley Chess Club ChampionshipOct 29, 2021 – Dec 17, 2021	1/1	—

The live rating moves only when new rated games are played. Until then it matches the published rating.

Event timeline · Classical

29 events

Events before the current rating period show the performance, not a rating change.

Live events show the rating change; earlier events show the performance rating.

2021 Berkeley Chess Club Championship—(0)
Oct – Dec 2021Swissfederation source
Score 1/1Start 2415
2021 GM Walter Browne Marathon—(1)
Sep – Oct 2021Swissfederation source
Score 1/1Opp avg 1790Start 2415
2021 GM Koltanowski Marathon—(1)
Jun – Jul 2021Swissfederation source
Score 1/1Opp avg 1282Start 2412
Return of the King 2021—(2)
May – Jun 2021Swissfederation source
Score 2/2Opp avg 1387Start 2412
Walter Shipman Memorial Tuesday Night Marathon—(2)
Aug – Oct 2018Swissfederation source
Score 2/2Opp avg 1483Start 2410
Spring 2018 Tuesday Night Marathon—(2)
Mar – May 2018Swissfederation source
Score 2/2Opp avg 1275Start 2407
Winter 2018 Tuesday Night Marathon—(1)
Jan – Feb 2018Swissfederation source
Score 1/1Opp avg 1319Start 2407
Fall 2017 Tuesday Night Marathon2241
Oct – Dec 2017Swissfederation source
Score 4/4Opp avg 1441Start 2403
Peter Grey Memorial 2017 Tuesday Night Marathon—(2)
Aug – Oct 2017Swissfederation source
Score 2/2Opp avg 1414Start 2403
Spring 2017 Tuesday Night Marathon—(1)
Mar – May 2017Swissfederation source
Score 1/1Opp avg 1575Start 2402
Winter 2017 Tuesday Night Marathon—(2)
Jan – Feb 2017Swissfederation source
Score 2/2Opp avg 1295Start 2400
2016 Mechanics' Fall Tournament2233
Oct – Dec 2016Swissfederation source
Score 3/3Opp avg 1433Start 2398
2016 Alan Benson Memorial Tournament—(1)
Aug – Sep 2016Swissfederation source
Score 1/1Opp avg 1259Start 2397
2016 Mechanics' Summer Tournament—(2)
May – Jul 2016Swissfederation source
Score 2/2Opp avg 1202Start 2395
2016 Mechanics' Winter Tournament2514
Jan – Feb 2016Swissfederation source
Score 3/3Opp avg 1714Start 2393
2015 Fall Tuesday Night Marathon—(0)
Oct – Dec 2015Swissfederation source
Score 1/1Start 2392
2015 Leighton Allen Tuesday Night Marathon—(1)
Aug – Sep 2015Swissfederation source
Score 1/1Opp avg 1803Start 2392
2015 Summer Tuesday Night Marathon—(2)
May – Jul 2015Swissfederation source
Score 2/2Opp avg 1630Start 2390
2015 Winter Tuesday Night—(0)
Jan – Feb 2015Swissfederation source
Score 1/1Start 2390
2010/11 Bay Area New Year Open—(2)
Dec 2010 – Jan 2011Swissfederation source
Score 2½/3Opp avg 1999Start 2394
2010 California Class Championship2369
Nov 2010Swissfederation source
Best of 2010Score 2/3Opp avg 2244Start 2394
49th Annual Pacific Southwest Open2376
Jul 2009Swissfederation source
#2 in 2009Score 3/4Opp avg 2251Start 2394
2009 Washington Open2433
May 2009Swissfederation source
Best of 2009Score 5/6Opp avg 2160Start 2409
Calgary International Chess Classic2211
May 2009Swissfederation source
#3 in 2009Score 3/7Opp avg 2261Start 2409
Western Chess Congress—(1)
Mar 2009Swissfederation source
Score ½/1Opp avg 2226Start 2411

Live ratings projected from the OCT26 published list · Not affiliated with FIDE