Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Deventer, WG (Wilrich Gerdus)

Chess SA id

105039730

FIDE id

Date of birth

2005-04-22 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-05-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1475.9	1457.5	1365.5	1119.8
Raw rating	1475.9	1457.5	1365.5	1119.8
Weighted rating	1475.8	1457.4	1363.4	1119.8
Weighted performance	727.7	718.1	0	0
Floor	1002.7	987.3	865.5	619.8
K-factor	32	32	36	40
Min/Max rating change allowed	111.9	114.9	131	185.9
Highest rating	1502.7 2021-12-01	1502.2 2018-10-01	1365.5 2024-02-01	1200 2024-02-01
Highest raw rating	1502.7 2021-12-01	1487.3 2021-12-01	1365.5 2024-02-01	1119.8 2024-02-01
Highest weighted rating	1502.7 2023-05-01	1487.3 2023-05-01	1358.6 2025-08-01	1119.8 2024-11-01
Highest weighted performance	1498.1 2018-10-01	1502.2 2018-10-01	1239.4 2020-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1475.9	1457.5	1365.5	1119.8
Analysis
Rating	1475.9	1457.5	1365.5	1119.8
Raw rating	1475.9	1457.5	1365.5	1119.8
Weighted rating	1475.8	1457.4	1363.4
Weighted performance	727.7	718.1	0
K-factor	32	32	36	40
Floor	1002.7	987.3	865.5	619.8
Max/Min rating change allowed	111.9	114.9	131	185.9
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	1475.9	1457.5	1365.5	1119.8
New weighted rating	1475.8	1457.4	1364.8	1119.8
New weighted performance	727.2	717.5	0	0
Temp new rating	1475.9	1457.5	1365.5	1119.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1475.9	1457.5	1365.5	1119.8
New K-factor	32	32	36	40
New floor	1002.7	987.3	865.5	619.8

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	5	5	0
	0	0	0
	5	5	0
History	544	516	28

Games since
	Main 0	Standard 0		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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	164	99.5	60.67	90.7	1290.3	1381
Standard	159	95.5	60.06	85.5	1287.6	1373.1
Rapid	5	4	80	255	1377.1	1632.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1475.9	1457.5	1365.5	1119.8
2025-09-01	1475.9	1457.5	1365.5	1119.8
2025-08-01	1475.9	1457.5	1365.5	1119.8
2025-07-01	1475.9	1457.5	1365.5	1119.8
2025-06-01	1475.9	1457.5	1365.5	1119.8
2025-05-01	1475.9	1457.5	1365.5	1119.8
2025-04-01	1475.9	1457.5	1365.5	1119.8
2025-03-01	1475.9	1457.5	1365.5	1119.8
2025-02-01	1475.9	1457.5	1365.5	1119.8
2025-01-01	1475.6	1457.2	1365.5	1119.8
2024-12-01	1475.6	1457.2	1365.5	1119.8
2024-11-01	1475.6	1457.2	1365.5	1119.8
2024-10-01	1475.6	1457.2	1365.5	1119.8
2024-09-01	1475.6	1457.2	1365.5	1119.8
2024-08-01	1475.6	1457.2	1365.5	1119.8
2024-07-01	1475.6	1457.2	1365.5	1119.8
2024-06-01	1475.6	1457.2	1365.5	1119.8
2024-08-01	1475.6	1457.2	1365.5	1119.8
2024-04-01	1475.6	1457.2	1365.5	1119.8
2024-03-01	1475.6	1457.2	1365.5	1119.8
2024-02-01	1475.6	1457.2	1365.5	1119.8
2024-01-01	1475.6	1457.2	1365.5	1119.8
2023-12-01	1475.6	1457.2	1159.8	1119.8
2023-11-01	1475.6	1457.2	1159.8	1119.8

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Gauteng Schools Individual Finals 2023 (U18 Boys)	2023-05-27	2023-05-27	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
2	JMC Bryanston 2021 (B)	2021-11-06	2021-11-06	Standard	Johannesburg Metro (GJM)	5	5	4.5	Yes	Analysis
3	JNW Club - Junior A High School 2020	2020-03-07	2020-03-07	Rapid	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
4	JNW Club - Trinityhouse Randpark Ridge Open 2020 (B)	2020-02-22	2020-02-22	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
5	JNW Club - Bryanston Open1 2020 (B)	2020-02-01	2020-02-01	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
6	2019 South African Junior Team Championships (U16A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
7	GJM vs GE Inter Region 2019 (U16B)	2019-10-05	2019-10-05	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
8	JHB Metro Closed 2019 (U16)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis
9	JNW Club - Hoerskool Linden 2019 (B)	2019-06-15	2019-06-15	Standard	Johannesburg Metro (GJM)	5	4	1.5	Yes	Analysis
10	JNW Club - Bryanston Open 2 2019 (B)	2019-05-11	2019-05-11	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
11	JNW Club - Trinityhouse Randpark Ridge Open 2019 (A)	2019-03-09	2019-03-09	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
12	2019 South African Junior Closed Chess Championship (U14 Open)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	8	2.5	Yes	Analysis
13	Springs Chess Club Open 2019 (A)	2019-02-09	2019-02-09	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
14	JNW Club - Bryanston Open 1 2019 (A)	2019-01-26	2019-01-26	Standard	Johannesburg Metro (GJM)	5	4	1.5	Yes	Analysis
15	Boksburg Open 2019 (A)	2019-01-19	2019-01-19	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
16	2018 Tshwane Inter Region (U14D)	2018-12-01	2018-12-01	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
17	South African Junior Team Championships 2018 (U14A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
18	Inter Region GE vs JHB Metro 2018 (U14A)	2018-10-06	2018-10-06	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
19	JNW Club - Maragon Open 2018 (B)	2018-08-04	2018-08-04	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
20	JHB Metro Junior Closed 2018 (U14)	2018-07-28	2018-07-29	Standard	Johannesburg Metro (GJM)	6	6	5	Yes	Analysis
21	2018 Swartkop Open (B)	2018-06-23	2018-06-23	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
22	2018 Gauteng Secondary Schools Individual Chess Championships (U13 Boys)	2018-05-25	2018-05-25	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
23	JNW Club - Bryanston Open 2 2018 (B)	2018-05-05	2018-05-05	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
24	D10 Schools Individuals 2018 (U13 Boys)	2018-05-18	2018-05-18	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis
25	JNW Club - Linden Open 2018 (B)	2018-04-14	2018-04-14	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
26	JNW Club - Northriding College Open 2018 (A)	2018-03-09	2018-03-10	Standard	Johannesburg Metro (GJM)	6	6	2.5	Yes	Analysis
27	JNW Club - Trinityhouse Little Falls Open 2018 (B)	2018-02-16	2018-02-17	Standard	Johannesburg Metro (GJM)	6	6	2	Yes	Analysis
28	JNW Club - Bryanston Open 2018 (B)	2018-01-26	2018-01-27	Standard	Johannesburg Metro (GJM)	6	6	4	Yes	Analysis
29	South African Junior Wildcard Championships 2017 (U14 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
30	South African Junior Team Championships 2017 (U14A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	5	Yes	Analysis

#	Games	Start				End
1	9	Tournament JHB Metro Junior Closed 2018				Tournament Inter Region GE vs JHB Metro 2018
		date 2018-07-29	rnd 6	type Standard	result 1	date 2018-10-06	rnd 3	type Standard	result 1
		Opponent Xiao, R (Ryan)				Opponent Smit, D (Devon)
2	9	Tournament JNW Club - Bryanston Open 2 2018				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-05-05	rnd 5	type Standard	result 1	date 2018-05-25	rnd 3	type Standard	result 1
		Opponent Wany, J (Jobert)				Opponent Sebeho, L (Lebo)
3	8	Tournament 2019 South African Junior Team Championships				Tournament JNW Club - Bryanston Open1 2020
		date 2020-01-05	rnd 3	type Standard	result 1	date 2020-02-01	rnd 3	type Standard	result 1
		Opponent Pillay, K (Kuvam)				Opponent Shatlin, D (Damien)

#	Games	Start				End
1	9	Tournament JNW Club - Trinityhouse Randpark Ridge Open 2020				Tournament Gauteng Schools Individual Finals 2023
		date 2020-02-22	rnd 3	type Standard	result 1	date 2023-05-27	rnd 1	type Standard	result 1
		Opponent Jones, E (Edward)				Opponent Mufunwaini, E (Emmanuel)
2	9	Tournament JHB Metro Junior Closed 2018				Tournament Inter Region GE vs JHB Metro 2018
		date 2018-07-29	rnd 6	type Standard	result 1	date 2018-10-06	rnd 3	type Standard	result 1
		Opponent Xiao, R (Ryan)				Opponent Smit, D (Devon)
3	9	Tournament JNW Club - Bryanston Open 2 2018				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-05-05	rnd 5	type Standard	result 1	date 2018-05-25	rnd 3	type Standard	result 1
		Opponent Wany, J (Jobert)				Opponent Sebeho, L (Lebo)

#	Games	Start				End
1	3	Tournament JNW Club - Junior A High School 2020				Tournament JNW Club - Junior A High School 2020
		date 2020-03-07	rnd 1	type Rapid	result 1	date 2020-03-07	rnd 3	type Rapid	result 1
		Opponent Donald, R (Ryan)				Opponent Buhrmann, J (Johann)
2	1	Tournament JNW Club - Junior A High School 2020				Tournament JNW Club - Junior A High School 2020
		date 2020-03-07	rnd 5	type Rapid	result 1	date 2020-03-07	rnd 5	type Rapid	result 1
		Opponent Allison, LM (Liam)				Opponent Allison, LM (Liam)

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament JNW Club - Bryanston Open 2 2018				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-05-05	rnd 5	type Standard	result 1	date 2018-05-25	rnd 3	type Standard	result 1
		Opponent Wany, J (Jobert)				Opponent Sebeho, L (Lebo)
2	8	Tournament Inter Region GE vs JHB Metro 2018				Tournament South African Junior Team Championships 2018
		date 2018-10-06	rnd 5	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Coetzer, D (Daniel)				Opponent Koen, I (Ivan)
3	6	Tournament JNW Club - Trinityhouse Randpark Ridge Open 2020				Tournament JNW Club - Junior A High School 2020
		date 2020-02-22	rnd 3	type Standard	result 1	date 2020-03-07	rnd 3	type Rapid	result 1
		Opponent Jones, E (Edward)				Opponent Buhrmann, J (Johann)

#	Games	Start				End
1	9	Tournament JNW Club - Bryanston Open 2 2018				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-05-05	rnd 5	type Standard	result 1	date 2018-05-25	rnd 3	type Standard	result 1
		Opponent Wany, J (Jobert)				Opponent Sebeho, L (Lebo)
2	8	Tournament Inter Region GE vs JHB Metro 2018				Tournament South African Junior Team Championships 2018
		date 2018-10-06	rnd 5	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Coetzer, D (Daniel)				Opponent Koen, I (Ivan)
3	6	Tournament JNW Club - Trinityhouse Randpark Ridge Open 2020				Tournament JMC Bryanston 2021
		date 2020-02-22	rnd 3	type Standard	result 1	date 2021-11-06	rnd 3	type Standard	result 1
		Opponent Jones, E (Edward)				Opponent Rossouw, AJ (Andries)

#	Games	Start				End
1	3	Tournament JNW Club - Junior A High School 2020				Tournament JNW Club - Junior A High School 2020
		date 2020-03-07	rnd 1	type Rapid	result 1	date 2020-03-07	rnd 3	type Rapid	result 1
		Opponent Donald, R (Ryan)				Opponent Buhrmann, J (Johann)
2	1	Tournament JNW Club - Junior A High School 2020				Tournament JNW Club - Junior A High School 2020
		date 2020-03-07	rnd 5	type Rapid	result 1	date 2020-03-07	rnd 5	type Rapid	result 1
		Opponent Allison, LM (Liam)				Opponent Allison, LM (Liam)

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	Donald ,R (Ryan)	7	4.5	121.4	6	3.5	70.8	1	1	425	0	0	0
1	Donald ,R (Ryan)	7	1135.7	1257.1	6	1097.5	1206.5	1	928	1560.7	0	0	0
2	Xiao ,R (Ryan)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
2	Xiao ,R (Ryan)	3	1079.6	1362.9	3	1086.1	1362.9	0	0	0	0	0	0
3	Lingard ,B (Bevan)	3	3	425	3	3	425	0	0	0	0	0	0
3	Lingard ,B (Bevan)	3	1315.7	1740.7	3	1312.5	1740.7	0	0	0	0	0	0
4	Coetzer ,D (Daniel)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
4	Coetzer ,D (Daniel)	3	1320	1178.4	3	1320.8	1178.4	0	0	0	0	0	0
5	Mazibuko ,T (Thembinkosi)	2	2	425	2	2	425	0	0	0	0	0	0
5	Mazibuko ,T (Thembinkosi)	2	870.8	1295.8	2	893.8	1295.8	0	0	0	0	0	0
6	Ramlall ,S (Sanjana)	2	2	425	2	2	425	0	0	0	0	0	0
6	Ramlall ,S (Sanjana)	2	1265.9	1690.9	2	1255.6	1690.9	0	0	0	0	0	0
7	Coertzen ,D (Dylan)	2	2	425	2	2	425	0	0	0	0	0	0
7	Coertzen ,D (Dylan)	2	1205.5	1630.5	2	1212.2	1630.5	0	0	0	0	0	0
8	Govender ,S (Shevern)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Govender ,S (Shevern)	2	1589.6	1164.6	2	1589.4	1164.6	0	0	0	0	0	0
9	Nair ,M (Mayaskar)	2	1	0	2	1	0	0	0	0	0	0	0
9	Nair ,M (Mayaskar)	2	1258.5	1258.5	2	1255.9	1258.5	0	0	0	0	0	0
10	Booi ,N (Nande)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
10	Booi ,N (Nande)	2	1387.8	1175.3	2	1395.2	1175.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Van Deventer, WG (Wilrich Gerdus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms