Jan Koopman

NED · 70 yrs · Peak 1784 (Apr 2024)

Best performance: 1824 at Amsterdam Science Park Chess Tournament 2022 - Group B(Best of 2022)

OCT26 Rating

—

Live Rating

Unrated

Change

—

Games Played

How live ratings are calculated

Rating History · Classical

Loading chart…

Official classical rating by month

List	Rating	Change
Sep 2025	1784	0
Aug 2025	1784	0
Jul 2025	1784	0
Jun 2025	1784	0
May 2025	1784	0
Apr 2025	1784	0
Mar 2025	1784	0
Feb 2025	1784	0
Jan 2025	1784	0
Dec 2024	1784	0

No standard rating: this player isn’t on the OCT26 standard list

Event timeline · Classical

40 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.

Dutch Team Competition 2023-2024 - Klasse 5 Round 7—(1)
Mar 2024Teamfederation source
Score 0/1Opp avg 1998Start 1777
Dutch Team Competition 2023-2024 - Klasse 5 Round 6—(1)
Mar 2024Teamfederation source
Score 1/1Opp avg 1820Start 1777
Dutch Team Competition 2023-2024 - Klasse 5 Round 5—(1)
Feb 2024Teamfederation source
Score 0/1Opp avg 1826Start 1633
Tata Steel Chess 204 - Weekday three-round event—(2)
Jan 2024Round robinfederation source
Score 2/3Opp avg 1662Start 1621
Dutch Team Competition 2023-2024 - Klasse 5 Round 4—(1)
Dec 2023Teamfederation source
Score 1/1Opp avg 1735Start 1608
Dutch Team Competition 2023-2024 - Klasse 5 Round 2—(1)
Nov 2023Teamfederation source
Score 0/1Opp avg 1845Start 1612
Dutch Team Competition 2023-2024 - Klasse 5 Round 1—(1)
Oct 2023Teamfederation source
Score 1/1Opp avg 1798Start 1597
Amsterdam Science Park Chess Tournament 2023 - Group B1557
Jul 2023Swissfederation source
#2 in 2023Score 2/8Opp avg 1715Start 1607
Dutch Team Competition 2022-2023 - Klasse 6 Round 6—(1)
Mar 2023Teamfederation source
Score 1/1Opp avg 1545Start 1598
Dutch Team Competition 2022-2023 - Klasse 6 Round 5—(0)
Feb 2023Teamfederation source
Score 1/1Start 1598
Tata Steel dagvierkampen 20231667
Jan 2023Round robinfederation source
Best of 2023Score 1½/3Opp avg 1667Start 1592
Dutch Team Competition 2022-2023 - Klasse 6 Round 2—(0)
Nov 2022Teamfederation source
Score ½/1Start 1592
Amsterdam Science Park Chess Tournament 2022 - Group B1824
Jul 2022Swissfederation source
Best of 2022Score 3½/7Opp avg 1767Start 1549
Dutch Team Competition 2021-2022 - Klasse 5 Round 4—(1)
May 2022Teamfederation source
Score ½/1Opp avg 1848Start 1542
Dutch Team Competition 2021-2022 - Klasse 5 Round 6—(0)
Mar 2022Teamfederation source
Score 0/1Start 1548
Dutch Team Competition 2021-2022 - Klasse 5 Round 5—(1)
Feb 2022Teamfederation source
Score 0/1Opp avg 1949Start 1550
Dutch Team Competition 2021-2022 - Klasse 5 Round 3—(1)
Nov 2021Teamfederation source
Score ½/1Opp avg 1876Start 1536
Dutch Team Competition 2021-2022 - Klasse 5 Round 2—(0)
Nov 2021Teamfederation source
Score 0/1Start 1536
Dutch Team Competition 2021-2022 - Klasse 5 Round 1—(1)
Oct 2021Teamfederation source
Score 0/1Opp avg 1876Start 1538
Dutch Team Competition 2019-2020 Klasse 5 Round 5—(1)
Mar 2020Teamfederation source
Score 1/1Opp avg 1481Start 1529
Dutch Team Competition 2019-2020 Klasse 5 Round 4—(1)
Feb 2020Teamfederation source
Score 0/1Opp avg 1638Start 1536
Tata Steel Tienkampen 20201455
Jan 2020Swissfederation source
Best of 2020Score 1½/9Opp avg 1728Start 1575
Tata Steel Dagvierkampen 2020—(2)
Jan 2020Swissfederation source
Score 0/3Opp avg 1664Start 1575
Dutch Team Competition 2019-2020 Klasse 5 Round 1—(1)
Nov 2019Teamfederation source
Score 0/1Opp avg 1723Start 1581
Brugse Meesters 20191603
Aug 2019Swissfederation source
Best of 2019Score 3½/8Opp avg 1646Start 1583

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