Siem Westerhof

NED · 13 yrs · K=40 · Peak 1641 (Feb 2025)

Best performance: 1723 at Jeugd Weekendtoernooi Twente(Best of 2026)

World #=147256 live669#146,587 publishedNetherlands #=4475

OCT26 Rating

1604

Live Rating

1604.0

Change

0.0

Games Played

Rating History · Classical

Loading chart…

Classical games since the October list

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

	Last played	Score	TPR
	Summer Prague Open 2026 - BAug 7 – Aug 15TPR 1614	2/9	1614

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

8 of 20 events · All years

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.

Summer Prague Open 2026 - B1614
Aug 2026Swisschess-results.com
#2 in 2026Score 2/9Opp avg 1614Start 1606
Dutch Open 2026 - Reserve C1601
Jul 2026Swissfederation source
#3 in 2026Score 3/8Opp avg 1651Start 1611
18th BPB Limburg Open 2026 - group D—(2)
May 2026Swisschess-results.com
Score 3½/7Opp avg 1450Start 1585
Dutch Team Competition 2025-2026 Klasse 4B1119
Sep 2025 – Apr 2026Teamfederation source
Score 0/4Opp avg 1919Start 1605
grenke Chess Open 2026 C-Open—(0)
Apr 2026Swissfederation source
Score 4/9Start 1585
Jeugd Weekendtoernooi Twente1723
Feb – Mar 2026Swisschess-results.com
Best of 2026Score 2½/5Opp avg 1628Start 1583
85e Noteboomtoernooi—(1)
Feb 2026Swissfederation source
Score 2½/5Opp avg 1670Start 1583
Tata Steel Chess 2026 - Weekendvierkampen—(1)
Jan 2026Round robinfederation source
Score 1/3Opp avg 1662Start 1563

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