Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coertzen, D (Dylan)

Chess SA id

102005069

FIDE id

Date of birth

2002-10-21 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1576.7	1570.7	1128.8	1128.8
Raw rating	1576.7	1570.7	1128.8	1128.8
Weighted rating	1564.2	1556.3	1128.8	1128.8
Weighted performance	956.9	950.9	0	0
Floor	1076.7	1070.7	628.8	628.8
K-factor	32	32	40	40
Min/Max rating change allowed	97	97.8	183.5	183.5
Highest rating	1580.8 2020-02-01	1571.4 2020-02-01	1200 2024-03-01	1200 2024-03-01
Highest raw rating	1576.7 2025-04-01	1570.7 2025-04-01	1128.8 2024-03-01	1128.8 2024-03-01
Highest weighted rating	1576.7 2022-02-01	1570.7 2022-02-01	1128.8 2024-11-01	1128.8 2024-11-01
Highest weighted performance	1580.8 2020-02-01	1571.4 2020-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1576.7	1570.7	1128.8	1128.8
Analysis
Rating	1576.7	1570.7	1128.8	1128.8
Raw rating	1576.7	1570.7	1128.8	1128.8
Weighted rating	1564.2	1556.3	1128.8
Weighted performance	956.9	950.9	0
K-factor	32	32	40	40
Floor	1076.7	1070.7	628.8	628.8
Max/Min rating change allowed	97	97.8	183.5	183.5
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1576.7	1570.7	1128.8	1128.8
New weighted rating	1565.6	1557.9	1128.8	1128.8
New weighted performance	956.3	950.3	0	0
Temp new rating	1576.7	1570.7	1128.8	1128.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1576.7	1570.7	1128.8	1128.8
New K-factor	32	32	40	40
New floor	1076.7	1070.7	628.8	628.8

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	0	0	0
	0	0	0
	5	5	0
	0	0	0
History	307	305	2

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	5	4	80	255	1445.2	1700.2
Standard	5	4	80	255	1445.2	1700.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	106	60	56.6	56.1	1280.3	1336.5
Standard	106	60	56.6	56.1	1280.3	1336.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1576.7	1570.7	1128.8	1128.8
2025-09-01	1576.7	1570.7	1128.8	1128.8
2025-08-01	1576.7	1570.7	1128.8	1128.8
2025-07-01	1576.7	1570.7	1128.8	1128.8
2025-06-01	1576.7	1570.7	1128.8	1128.8
2025-05-01	1576.7	1570.7	1128.8	1128.8
2025-04-01	1576.7	1570.7	1128.8	1128.8
2025-03-01	1552.3	1542.6	1128.8	1128.8
2025-02-01	1552.3	1542.6	1128.8	1128.8
2025-01-01	1552.3	1542.6	1128.8	1128.8
2024-12-01	1552.3	1542.6	1128.8	1128.8
2024-11-01	1552.3	1542.6	1128.8	1128.8
2024-10-01	1552.3	1542.6	1128.8	1128.8
2024-09-01	1552.3	1542.6	1128.8	1128.8
2024-08-01	1552.3	1542.6	1128.8	1128.8
2024-07-01	1552.3	1542.6	1128.8	1128.8
2024-06-01	1552.3	1542.6	1128.8	1128.8
2024-08-01	1552.3	1542.6	1128.8	1128.8
2024-04-01	1552.3	1542.6	1128.8	1128.8
2024-03-01	1552.3	1542.6	1128.8	1128.8
2024-02-01	1552.3	1542.6	1128.8	1128.8
2024-01-01	1552.3	1542.6	1128.8	1128.8
2023-12-01	1552.3	1542.6	1128.8	1128.8
2023-11-01	1552.3	1542.6	1128.8	1128.8

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	MCA Summer March 2025 (Advanced)	2025-03-08	2025-03-08	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	MCA Summer March 2025 (Advanced)	2025-03-08	2025-03-08	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
2	JNW Helpmekaar 2022 (Challengers)	2022-07-09	2022-07-09	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
3	JNW Club - Trinityhouse Randpark Ridge Open 2020 (B)	2020-02-22	2020-02-22	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis
4	JNW Club - Bryanston Open1 2020 (B)	2020-02-01	2020-02-01	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
5	2019 South African Junior Team Championships (U18B)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
6	The Joburg Open 2019 (Masters)	2019-10-12	2019-10-12	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
7	GJM vs GE Inter Region 2019 (U18B)	2019-10-05	2019-10-05	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis
8	JNW Club - Maragon Open 2019 (B)	2019-08-03	2019-08-03	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
9	JHB Metro Closed 2019 (Open)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	6	3.5	Yes	Analysis
10	JNW Club - Bryanston Open 2 2019 (B)	2019-05-11	2019-05-11	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
11	JNW Club - Charterhouse Open 2019 (B)	2019-04-13	2019-04-13	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
12	South African Junior Team Championships 2018 (U18B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	5.5	Yes	Analysis
13	JNW Club - Maragon Open 2018 (B)	2018-08-04	2018-08-04	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
14	JHB Metro Junior Closed 2018 (Open)	2018-07-28	2018-07-29	Standard	Johannesburg Metro (GJM)	6	6	2.5	Yes	Analysis
15	D10 Schools Individuals 2018 (U18 Boys)	2018-05-18	2018-05-18	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
16	JNW Club - Trinityhouse Randpark Ridge Open 2018 (B)	2018-03-24	2018-03-24	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
17	JNW Club - Bryanston Open 2018 (B)	2018-01-26	2018-01-27	Standard	Johannesburg Metro (GJM)	6	6	1	Yes	Analysis
18	South African Junior Wildcard Championships 2017 (U16 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
19	South African Junior Team Championships 2017 (U16B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	2.5	Yes	Analysis

#	Games	Start				End
1	9	Tournament JNW Club - Trinityhouse Randpark Ridge Open 2020				Tournament JNW Helpmekaar 2022
		date 2020-02-22	rnd 1	type Standard	result 1	date 2022-07-09	rnd 4	type Standard	result 0.5
		Opponent Donald, R (Ryan)				Opponent Ndlovu, B (Bongani)
2	7	Tournament JNW Club - Maragon Open 2019				Tournament The Joburg Open 2019
		date 2019-08-03	rnd 5	type Standard	result 0.5	date 2019-10-12	rnd 1	type Standard	result 1
		Opponent Van Stryp, O (Ockert)				Opponent Felix, H (Harrison)
3	6	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-20	rnd 7	type Standard	result 1
		Opponent Beukes, K (Kyle)				Opponent James, S (Sebenzile)

#	Games	Start				End
1	9	Tournament JNW Club - Trinityhouse Randpark Ridge Open 2020				Tournament JNW Helpmekaar 2022
		date 2020-02-22	rnd 1	type Standard	result 1	date 2022-07-09	rnd 4	type Standard	result 0.5
		Opponent Donald, R (Ryan)				Opponent Ndlovu, B (Bongani)
2	7	Tournament JNW Club - Maragon Open 2019				Tournament The Joburg Open 2019
		date 2019-08-03	rnd 5	type Standard	result 0.5	date 2019-10-12	rnd 1	type Standard	result 1
		Opponent Van Stryp, O (Ockert)				Opponent Felix, H (Harrison)
3	6	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-20	rnd 7	type Standard	result 1
		Opponent Beukes, K (Kyle)				Opponent James, S (Sebenzile)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament JNW Club - Trinityhouse Randpark Ridge Open 2020				Tournament JNW Helpmekaar 2022
		date 2020-02-22	rnd 1	type Standard	result 1	date 2022-07-09	rnd 3	type Standard	result 1
		Opponent Donald, R (Ryan)				Opponent De Jager, K (Karli)
2	6	Tournament GJM vs GE Inter Region 2019				Tournament The Joburg Open 2019
		date 2019-10-05	rnd 1	type Standard	result 1	date 2019-10-12	rnd 1	type Standard	result 1
		Opponent Vergottini, R (Ryan)				Opponent Felix, H (Harrison)
3	4	Tournament MCA Summer March 2025				Tournament MCA Summer March 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Mphasha, L (Lengoko)				Opponent Maphage, B (Benedict)

#	Games	Start				End
1	8	Tournament JNW Club - Trinityhouse Randpark Ridge Open 2020				Tournament JNW Helpmekaar 2022
		date 2020-02-22	rnd 1	type Standard	result 1	date 2022-07-09	rnd 3	type Standard	result 1
		Opponent Donald, R (Ryan)				Opponent De Jager, K (Karli)
2	6	Tournament GJM vs GE Inter Region 2019				Tournament The Joburg Open 2019
		date 2019-10-05	rnd 1	type Standard	result 1	date 2019-10-12	rnd 1	type Standard	result 1
		Opponent Vergottini, R (Ryan)				Opponent Felix, H (Harrison)
3	4	Tournament MCA Summer March 2025				Tournament MCA Summer March 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 1
		Opponent Mphasha, L (Lengoko)				Opponent Maphage, B (Benedict)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	Felix ,H (Harrison)	3	3	425	3	3	425	0	0	0	0	0	0
1	Felix ,H (Harrison)	3	1321.9	1746.9	3	1308.3	1746.9	0	0	0	0	0	0
2	Ramlall ,S (Sanjana)	2	2	425	2	2	425	0	0	0	0	0	0
2	Ramlall ,S (Sanjana)	2	1365.9	1790.9	2	1360.8	1790.9	0	0	0	0	0	0
3	Raubenheimer ,D (Dian)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
3	Raubenheimer ,D (Dian)	2	1455.1	1242.6	2	1455.1	1242.6	0	0	0	0	0	0
4	Flockhart ,E (Elijah)	2	1	0	2	1	0	0	0	0	0	0	0
4	Flockhart ,E (Elijah)	2	1202.1	1202.1	2	1203.7	1202.1	0	0	0	0	0	0
5	Voigt ,K (Karl)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Voigt ,K (Karl)	2	1290.8	865.8	2	1309.2	865.8	0	0	0	0	0	0
6	Van Der Westhuizen ,J (Javier)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
6	Van Der Westhuizen ,J (Javier)	2	1025.6	1238.1	2	1038.9	1238.1	0	0	0	0	0	0
7	Van Deventer ,WG (Wilrich Gerdus)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Van Deventer ,WG (Wilrich Gerdus)	2	1342.9	917.9	2	1347.1	917.9	0	0	0	0	0	0
8	Van Stryp ,O (Ockert)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
8	Van Stryp ,O (Ockert)	2	1281.3	1493.8	2	1283.9	1493.8	0	0	0	0	0	0
9	Gardiner ,N (Noa)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Gardiner ,N (Noa)	2	1361.7	936.7	2	1353.8	936.7	0	0	0	0	0	0
10	Brandt ,DW (Declan William)	2	2	425	2	2	425	0	0	0	0	0	0
10	Brandt ,DW (Declan William)	2	1275.2	1700.2	2	1275.6	1700.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Coertzen, D (Dylan)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms