Chess South Africa Ratings Database

PLAYER PAGE

Personal

Joerdens, W (Wian)

Chess SA id

1140192790

FIDE id

Date of birth

2014-11-11 (U12)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

11.2

Junior GPX Points

1064.5

Item	Main	Standard	Rapid	Blitz
Rating	1164.4	1200	1148.4	1200
Raw rating	1162.6	1200	1145.2	1200
Weighted rating	1164.4	1200	1148.4	1200
Weighted performance	1024.5	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	174.9	165.8	179.3	165.8
Highest rating	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted performance	1200 2024-12-01	1200 2024-02-01	1200 2024-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.6	0	-0.9	0
New rating	1163.8	1200	1147.5	1200
Analysis
Rating	1164.4	1200	1148.4	1200
Raw rating	1162.6	1200	1145.2	1200
Weighted rating	1164.4	1200	1148.4
Weighted performance	1024.5	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	174.9	165.8	179.3	165.8
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	1162.6	1200	1145.2	1200
New weighted rating	1163.8	1200	1147.5	1200
New weighted performance	1024.1	0	0	0
Temp new rating	1163.8	1200	1147.5	1200
Temp new rating +/-	-0.6	0	-0.9	0
Final new rating +/-	-0.6	0	-0.9	0
New rating	1163.8	1200	1147.5	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	16	6	10
	11	0	11
	0	0	0
	0	0	0
	0	0	0
History	27	6	21

Games since
	Main 27	Standard 6		Rapid 21		Blitz 0
Gender	Male
Age group	U12
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1829		931		167
Male	1376		683		117
U12	348		189		39
U12 Male	231		124		25
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	16	7	43.75	-53.1	1216.5	1163.3
Standard	6	3	50	0	1190.4	1190.4
Rapid	10	4	40	-85	1232.1	1147.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	27	10	37.04	-110.2	1212.1	1101.9
Standard	6	3	50	0	1190.4	1190.4
Rapid	21	7	33.33	-141.7	1218.2	1076.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1162.6	1200	1145.2	1200
2025-09-01	1162.6	1200	1145.2	1200
2025-08-01	1169	1200	1155.1	1200
2025-07-01	1169	1200	1155.1	1200
2025-06-01	1169	1200	1155.1	1200
2025-05-01	1169	1200	1155.1	1200
2025-04-01	1169	1200	1155.1	1200
2025-03-01	1169	1199.9	1155.1	1200
2025-02-01	1168.7	1199.6	1153.8	1200
2025-01-01	1143.9	1200	1118.4	1200
2024-12-01	1143.9	1200	1118.4	1200
2024-11-01	1143.9	1200	1118.4	1200
2024-10-01	1143.9	1200	1118.4	1200
2024-09-01	1143.9	1200	1118.4	1200
2024-08-01	1174.4	1200	1164	1200
2024-07-01	1174.4	1200	1164	1200
2024-06-01	1174.4	1200	1164	1200
2024-08-01	1174.4	1200	1164	1200
2024-04-01	1174.4	1200	1164	1200
2024-03-01	1174.4	1200	1164	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	1200

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	Stellenbosch Primary 2025 (U11)	2025-08-16	2025-08-16	Rapid	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis
2	Cape Winelands Schools Development 2025 (U11 Boys)	2025-08-02	2025-08-02	Rapid	Cape Winelands (WCW)	5	5	1.5	Yes	Analysis
3	Marie Delport Memorial 2025 (U12 Boys)	2025-01-25	2025-01-26	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Stellenbosch Primary 2025 (U11)	2025-08-16	2025-08-16	Rapid	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis
2	Cape Winelands Schools Development 2025 (U11 Boys)	2025-08-02	2025-08-02	Rapid	Cape Winelands (WCW)	5	5	1.5	Yes	Analysis
3	Marie Delport Memorial 2025 (U12 Boys)	2025-01-25	2025-01-26	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
4	Stellenbosch Primary 2024 (U11)	2024-08-17	2024-08-17	Rapid	Cape Winelands (WCW)	5	5	1	Yes	Analysis
5	Cape Winelands Schools - PS Trials 1 2024 (U11 Boys)	2024-02-10	2024-02-10	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Stellenbosch Primary 2025				Tournament Stellenbosch Primary 2025
		date 2025-08-16	rnd 4	type Rapid	result 0.5	date 2025-08-16	rnd 5	type Rapid	result 1
		Opponent Arendse, S (Scarlett)				Opponent Van Jaarsveldt, L (Leander)
2	2	Tournament Cape Winelands Schools Development 2025				Tournament Cape Winelands Schools Development 2025
		date 2025-08-02	rnd 2	type Rapid	result 0.5	date 2025-08-02	rnd 3	type Rapid	result 1
		Opponent Dampies, W (Wyatt)				Opponent Botha, J (Jaco)
3	2	Tournament Marie Delport Memorial 2025				Tournament Marie Delport Memorial 2025
		date 2025-01-26	rnd 5	type Standard	result 1	date 2025-01-26	rnd 6	type Standard	result 1
		Opponent Stevens, C (Caleb)				Opponent Du Toit, S (Shaundre)

#	Games	Start				End
1	2	Tournament Marie Delport Memorial 2025				Tournament Marie Delport Memorial 2025
		date 2025-01-26	rnd 5	type Standard	result 1	date 2025-01-26	rnd 6	type Standard	result 1
		Opponent Stevens, C (Caleb)				Opponent Du Toit, S (Shaundre)
2	1	Tournament Marie Delport Memorial 2025				Tournament Marie Delport Memorial 2025
		date 2025-01-25	rnd 2	type Standard	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Snyders, B (Buren)				Opponent Snyders, B (Buren)

#	Games	Start				End
1	2	Tournament Stellenbosch Primary 2025				Tournament Stellenbosch Primary 2025
		date 2025-08-16	rnd 4	type Rapid	result 0.5	date 2025-08-16	rnd 5	type Rapid	result 1
		Opponent Arendse, S (Scarlett)				Opponent Van Jaarsveldt, L (Leander)
2	2	Tournament Cape Winelands Schools Development 2025				Tournament Cape Winelands Schools Development 2025
		date 2025-08-02	rnd 2	type Rapid	result 0.5	date 2025-08-02	rnd 3	type Rapid	result 1
		Opponent Dampies, W (Wyatt)				Opponent Botha, J (Jaco)
3	2	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2024-02-10	rnd 6	type Rapid	result 1
		Opponent Koekemoer, S (Suriel)				Opponent Kgothatso, R (Rautaleng)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Marie Delport Memorial 2025				Tournament Marie Delport Memorial 2025
		date 2025-01-26	rnd 5	type Standard	result 1	date 2025-01-26	rnd 6	type Standard	result 1
		Opponent Stevens, C (Caleb)				Opponent Du Toit, S (Shaundre)
2	2	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2024-02-10	rnd 6	type Rapid	result 1
		Opponent Koekemoer, S (Suriel)				Opponent Kgothatso, R (Rautaleng)
3	1	Tournament Stellenbosch Primary 2025				Tournament Stellenbosch Primary 2025
		date 2025-08-16	rnd 5	type Rapid	result 1	date 2025-08-16	rnd 5	type Rapid	result 1
		Opponent Van Jaarsveldt, L (Leander)				Opponent Van Jaarsveldt, L (Leander)

#	Games	Start				End
1	2	Tournament Marie Delport Memorial 2025				Tournament Marie Delport Memorial 2025
		date 2025-01-26	rnd 5	type Standard	result 1	date 2025-01-26	rnd 6	type Standard	result 1
		Opponent Stevens, C (Caleb)				Opponent Du Toit, S (Shaundre)
2	1	Tournament Marie Delport Memorial 2025				Tournament Marie Delport Memorial 2025
		date 2025-01-25	rnd 2	type Standard	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Snyders, B (Buren)				Opponent Snyders, B (Buren)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2024-02-10	rnd 6	type Rapid	result 1
		Opponent Koekemoer, S (Suriel)				Opponent Kgothatso, R (Rautaleng)
2	1	Tournament Stellenbosch Primary 2025				Tournament Stellenbosch Primary 2025
		date 2025-08-16	rnd 5	type Rapid	result 1	date 2025-08-16	rnd 5	type Rapid	result 1
		Opponent Van Jaarsveldt, L (Leander)				Opponent Van Jaarsveldt, L (Leander)
3	1	Tournament Stellenbosch Primary 2025				Tournament Stellenbosch Primary 2025
		date 2025-08-16	rnd 2	type Rapid	result 1	date 2025-08-16	rnd 2	type Rapid	result 1
		Opponent Booysen, E (Elijah)				Opponent Booysen, E (Elijah)

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	Bekker ,T (Thian)	2	0	-425	1	0	-425	1	0	-425	0	0	0
1	Bekker ,T (Thian)	2	1258.8	833.8	1	1192.4	833.8	1	1197.5	833.8	0	0	0
2	Snyders ,B (Buren)	1	1	425	1	1	425	0	0	0	0	0	0
2	Snyders ,B (Buren)	1	1158	1583	1	1200	1583	0	0	0	0	0	0
3	Faure ,J (Jamie)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Faure ,J (Jamie)	1	1250.1	825.1	1	1192.4	825.1	0	0	0	0	0	0
4	Coetzee ,A (Abraham)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Coetzee ,A (Abraham)	1	1191.6	766.6	1	1173.6	766.6	0	0	0	0	0	0
5	Du Toit ,S (Shaundre)	1	1	425	1	1	425	0	0	0	0	0	0
5	Du Toit ,S (Shaundre)	1	1169.9	1594.9	1	1173.6	1594.9	0	0	0	0	0	0
6	Arendse ,S (Scarlett)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
6	Arendse ,S (Scarlett)	1	1199.8	1199.8	0	0	0	1	1200	1199.8	0	0	0
7	Nagel ,A (Alexander)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Nagel ,A (Alexander)	1	1228.2	803.2	0	0	0	1	1286.2	803.2	0	0	0
8	Botha ,J (Jaco)	1	1	425	0	0	0	1	1	425	0	0	0
8	Botha ,J (Jaco)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
9	Kgothatso ,R (Rautaleng)	1	1	425	0	0	0	1	1	425	0	0	0
9	Kgothatso ,R (Rautaleng)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Jansen ,N (Nico)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Jansen ,N (Nico)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Joerdens, W (Wian)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms