Mark van der Werf

Dutch chess player

Person human Q5627502

Press Enter · cited answer in seconds

Mark van der Werf

Summary

Mark van der Werf is a human^[1]. He was born on +1968-02-12T00:00:00Z^[2]. He worked as a chess player^[3].

Key Facts

Mark van der Werf was born on +1968-02-12T00:00:00Z^[2].
Mark van der Werf held citizenship in Kingdom of the Netherlands^[4].
Mark van der Werf worked as a chess player^[3].
Mark van der Werf's image is recorded as MarkvdWerf13.jpg^[5].
Mark van der Werf is recorded as male^[6].
Mark van der Werf's instance of is recorded as human^[7].
Mark van der Werf's Commons category is recorded as Mark van der Werf^[8].
Mark van der Werf's sport is recorded as chess^[9].
Mark van der Werf's given name is recorded as Mark^[10].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2418'}^[11].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2421'}^[12].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2409'}^[13].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2404'}^[14].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2419'}^[15].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2414'}^[16].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2415'}^[17].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2409'}^[18].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2448'}^[19].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2418'}^[20].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2413'}^[21].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2424'}^[22].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2426'}^[23].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2420'}^[24].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2405'}^[25].
Mark van der Werf's Elo rating is recorded as {'unit': '1', 'amount': '+2416'}^[26].

Body

Origins and Family

Mark van der Werf was born on +1968-02-12T00:00:00Z^[2].

Career and Affiliations

Mark van der Werf's professions included chess player^[3].

FAQs

What did Mark van der Werf do for work?

Mark van der Werf worked as chess player^[3].

⭐ Popularity Graph

0/100 long tail

📈 Wikipedia Views · last 3h

2/mo 27/yr

Quick Facts

Instance of human

Sex or gender male

Date of birth February 12, 1968

Country of citizenship Kingdom of the Netherlands

Occupation chess player

Properties

Country for sport Netherlands

Elo rating unit: 1, amount: +2418, unit: 1, amount: +2421, unit: 1, amount: +2409, unit: 1, amount: +2404, unit: 1, amount: +2419, unit: 1, amount: +2414, unit: 1, amount: +2415, unit: 1, amount: +2409, unit: 1, amount: +2448, unit: 1, amount: +2418, unit: 1, amount: +2413, unit: 1, amount: +2424, unit: 1, amount: +2426, unit: 1, amount: +2420, unit: 1, amount: +2405, unit: 1, amount: +2416, unit: 1, amount: +2450, unit: 1, amount: +2423, unit: 1, amount: +2405, unit: 1, amount: +2421, unit: 1, amount: +2419, unit: 1, amount: +2414, unit: 1, amount: +2415, unit: 1, amount: +2409, unit: 1, amount: +2419, unit: 1, amount: +2414, unit: 1, amount: +2415, unit: 1, amount: +2409, unit: 1, amount: +2423, unit: 1, amount: +2423, unit: 1, amount: +2402, unit: 1, amount: +2411, unit: 1, amount: +2419, unit: 1, amount: +2409, unit: 1, amount: +2415, unit: 1, amount: +2409, unit: 1, amount: +2447, unit: 1, amount: +2414, unit: 1, amount: +2413, unit: 1, amount: +2419, unit: 1, amount: +2448, unit: 1, amount: +2414, unit: 1, amount: +2413, unit: 1, amount: +2415, unit: 1, amount: +2445, unit: 1, amount: +2419, unit: 1, amount: +2414, unit: 1, amount: +2415, unit: 1, amount: +2409, unit: 1, amount: +2450, unit: 1, amount: +2432, unit: 1, amount: +2423, unit: 1, amount: +2417, unit: 1, amount: +2386, unit: 1, amount: +2374, unit: 1, amount: +2404, unit: 1, amount: +2415, unit: 1, amount: +2445, unit: 1, amount: +2445, unit: 1, amount: +2435, unit: 1, amount: +2423, unit: 1, amount: +2417, unit: 1, amount: +2413, unit: 1, amount: +2413, unit: 1, amount: +2386, unit: 1, amount: +2381, unit: 1, amount: +2389, unit: 1, amount: +2424, unit: 1, amount: +2421, unit: 1, amount: +2439, unit: 1, amount: +2444, unit: 1, amount: +2441, unit: 1, amount: +2422, unit: 1, amount: +2423, unit: 1, amount: +2418, unit: 1, amount: +2397, unit: 1, amount: +2378, unit: 1, amount: +2389, unit: 1, amount: +2414, unit: 1, amount: +2411, unit: 1, amount: +2432, unit: 1, amount: +2441, unit: 1, amount: +2445, unit: 1, amount: +2423, unit: 1, amount: +2443, unit: 1, amount: +2452, unit: 1, amount: +2432, unit: 1, amount: +2441, unit: 1, amount: +2445, unit: 1, amount: +2415, unit: 1, amount: +2431, unit: 1, amount: +2442, unit: 1, amount: +2435, unit: 1, amount: +2423, unit: 1, amount: +2423, unit: 1, amount: +2413, unit: 1, amount: +2401, unit: 1, amount: +2381, unit: 1, amount: +2414, unit: 1, amount: +2411, unit: 1, amount: +2432, unit: 1, amount: +2441, unit: 1, amount: +2411, unit: 1, amount: +2412, unit: 1, amount: +2402, unit: 1, amount: +2402, unit: 1, amount: +2413, unit: 1, amount: +2406, unit: 1, amount: +2406, unit: 1, amount: +2407, unit: 1, amount: +2407, unit: 1, amount: +2417, unit: 1, amount: +2400, unit: 1, amount: +2400, unit: 1, amount: +2416, unit: 1, amount: +2404, unit: 1, amount: +2400, unit: 1, amount: +2398, unit: 1, amount: +2399, unit: 1, amount: +2413, unit: 1, amount: +2400, unit: 1, amount: +2404, unit: 1, amount: +2404, unit: 1, amount: +2389, unit: 1, amount: +2260, unit: 1, amount: +2260, unit: 1, amount: +2310, unit: 1, amount: +2320, unit: 1, amount: +2320, unit: 1, amount: +2365, unit: 1, amount: +2370, unit: 1, amount: +2400, unit: 1, amount: +2400, unit: 1, amount: +2395, unit: 1, amount: +2395, unit: 1, amount: +2405, unit: 1, amount: +2430, unit: 1, amount: +2430, unit: 1, amount: +2425, unit: 1, amount: +2415, unit: 1, amount: +2400, unit: 1, amount: +2400, unit: 1, amount: +2420, unit: 1, amount: +2410, unit: 1, amount: +2420, unit: 1, amount: +2415, unit: 1, amount: +2404, unit: 1, amount: +2432, unit: 1, amount: +2432, unit: 1, amount: +2429, unit: 1, amount: +2439, unit: 1, amount: +2404, unit: 1, amount: +2404, unit: 1, amount: +2404, unit: 1, amount: +2402, unit: 1, amount: +2407, unit: 1, amount: +2381, unit: 1, amount: +2396, unit: 1, amount: +2401, unit: 1, amount: +2412, unit: 1, amount: +2409, unit: 1, amount: +2382, unit: 1, amount: +2394, unit: 1, amount: +2398, unit: 1, amount: +2393, unit: 1, amount: +2385, unit: 1, amount: +2393, unit: 1, amount: +2394, unit: 1, amount: +2393, unit: 1, amount: +2393, unit: 1, amount: +2393, unit: 1, amount: +2396, unit: 1, amount: +2412, unit: 1, amount: +2382, unit: 1, amount: +2393, unit: 1, amount: +2404, unit: 1, amount: +2401, unit: 1, amount: +2401, unit: 1, amount: +2393, unit: 1, amount: +2393, unit: 1, amount: +2393, unit: 1, amount: +2393, unit: 1, amount: +2393, unit: 1, amount: +2393, unit: 1, amount: +2387, unit: 1, amount: +2389, unit: 1, amount: +2394, unit: 1, amount: +2396, unit: 1, amount: +2413, unit: 1, amount: +2411, unit: 1, amount: +2412, unit: 1, amount: +2392, unit: 1, amount: +2402, unit: 1, amount: +2396, unit: 1, amount: +2397, unit: 1, amount: +2399, unit: 1, amount: +2406, unit: 1, amount: +2399, unit: 1, amount: +2400, unit: 1, amount: +2407, unit: 1, amount: +2408, unit: 1, amount: +2386, unit: 1, amount: +2408, unit: 1, amount: +2408, unit: 1, amount: +2411, unit: 1, amount: +2414, unit: 1, amount: +2386, unit: 1, amount: +2380, unit: 1, amount: +2415, unit: 1, amount: +2416, unit: 1, amount: +2416

Given name Mark

Imported from wholeness_audit_2026-05-02

Sport chess

Title of chess person International Master

External References (7)

365chess.com player id Mark_van_der_Werf

Chess.com member id MasterSonnevanck2

Chess.com player id mark-van-der-werf

Chessgames.com player id 40389

Chesstempo.com player id 219627

Fide player id 1000470

Google knowledge graph id /g/122m8qm8

🌐 Available in 3 languages

enMark van der Werf commonsCategory:Mark van der Werf nlMark van der Werf (schaker)

🏷️ Also known as

en Mark van der Werf ru ван дер Верф, Марк ru Марк ван дер Верф

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[5] ↑ Mark van der Werf — image (P18): MarkvdWerf13.jpg. wikidata.org.
[6] ↑ Mark van der Werf — sex or gender (P21): male. wikidata.org.
[4] ↑ Mark van der Werf — country of citizenship (P27): Kingdom of the Netherlands. wikidata.org.
[7] ↑ Mark van der Werf — instance of (P31): human. wikidata.org.
[3] ↑ Mark van der Werf — occupation (P106): chess player. wikidata.org.
[8] ↑ Mark van der Werf — Commons category (P373): Mark van der Werf. wikidata.org.
[2] ↑ Mark van der Werf — date of birth (P569): +1968-02-12T00:00:00Z. wikidata.org.
[9] ↑ Mark van der Werf — sport (P641): chess. wikidata.org.
[10] ↑ Mark van der Werf — given name (P735): Mark. wikidata.org.
[11] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2418'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[12] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2421'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[13] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2409'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[14] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2404'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[15] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2419'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[16] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2414'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[17] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2415'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[18] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2409'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[19] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2448'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[20] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2418'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[21] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2413'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[22] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2424'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[23] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2426'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[24] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2420'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[25] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2405'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.
[26] ↑ Mark van der Werf — Elo rating (P1087): {'unit': '1', 'amount': '+2416'}. ratings.fide.com. Retrieved 2016-09-21. wikidata.org.

Class ancestry

[1] ↑ Mark van der Werf is an instance of human (Q5) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA

4ort.xyz Knowledge Graph. (2026). Mark van der Werf. Retrieved May 3, 2026, from https://4ort.xyz/entity/mark-van-der-werf

MLA “Mark van der Werf.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/mark-van-der-werf.

BibTeX

@misc{4ortxyz_mark-van-der-werf_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Mark van der Werf}}, year = {2026}, url = {https://4ort.xyz/entity/mark-van-der-werf}, note = {Accessed: 2026-05-03}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Mark van der Werf — https://4ort.xyz/entity/mark-van-der-werf (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/mark-van-der-werf · Last refreshed: May 3, 2026