Chess South Africa Ratings Database

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Personal

Nortman, WJ (Wilhelmus Johan)

Chess SA id

1110099325

FIDE id

Date of birth

2011-01-11 (U16)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1140

Item	Main	Standard	Rapid	Blitz
Rating	1389.2	1372.5	1300.1	1200
Raw rating	1384.8	1365.9	1300.1	1200
Weighted rating	1389.2	1372.5	1258.4	1200
Weighted performance	1232.8	1186.8	0	0
Floor	926.4	909.1	800.1	700
K-factor	32	32	36	36
Min/Max rating change allowed	127.4	130.9	143.8	165.8
Highest rating	1453.3 2018-03-01	1451.4 2018-03-01	1476.7 2024-11-01	1200 2018-10-01
Highest raw rating	1426.4 2024-11-01	1409.1 2024-08-01	1300.1 2025-11-01	1200 2024-02-01
Highest weighted rating	1389.2 2025-11-01	1365.1 2025-08-01	1258.4 2025-11-01	1200 2018-10-01
Highest weighted performance	1453.3 2018-03-01	1451.4 2018-03-01	1476.7 2024-11-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	1.9	1.5	0	0
New rating	1391.1	1374	1300.1	1200
Analysis
Rating	1389.2	1372.5	1300.1	1200
Raw rating	1384.8	1365.9	1300.1	1200
Weighted rating	1389.2	1372.5	1258.4
Weighted performance	1232.8	1186.8	0
K-factor	32	32	36	36
Floor	926.4	909.1	800.1	700
Max/Min rating change allowed	127.4	130.9	143.8	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	1384.8	1365.9	1300.1	1200
New weighted rating	1391.1	1374	1263.2	1200
New weighted performance	1225.1	1179.1	0	0
Temp new rating	1391.1	1374	1300.1	1200
Temp new rating +/-	1.9	1.5	0	0
Final new rating +/-	1.9	1.5	0	0
New rating	1391.1	1374	1300.1	1200
New K-factor	32	32	36	36
New floor	926.4	909.1	800.1	700

Item	Main	Standard	Rapid
	0	0	0
	15	9	6
	31	25	6
	19	19	0
	14	14	0
	0	0	0
History	207	195	12

Games since
	Main 46	Standard 34		Rapid 12		Blitz 0
Gender	Male
Age group	U16
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	2310		156		127
Male	1873		131		105
U16	352		21		19
U16 Male	267		18		16
Standard
	RSA		Province		Region
Overall	2392		172		128
Male	1929		145		105
U16	375		21		19
U16 Male	284		18		16
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	15	7	46.67	-28.3	1336.3	1307.9
Standard	9	3	33.33	-141.7	1406.8	1265.1
Rapid	6	4	66.67	141.7	1230.5	1372.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	207	122.5	59.18	78	1223.1	1301.1
Standard	195	113.5	58.21	69.7	1223.6	1293.3
Rapid	12	9	75	212.5	1215.2	1427.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1384.8	1365.9	1300.1	1200
2025-09-30	1386.4	1365.9	1272	1200
2025-09-01	1386.4	1365.9	1272	1200
2025-08-01	1386.4	1365.9	1272	1200
2025-07-01	1386.4	1365.9	1272	1200
2025-06-01	1399.5	1378.8	1272	1200
2025-05-01	1399.5	1378.8	1272	1200
2025-04-01	1399.5	1378.8	1272	1200
2025-03-01	1426.4	1409.1	1272	1200
2025-02-01	1426.4	1409.1	1272	1200
2025-01-01	1426.4	1409.1	1272	1200
2024-12-01	1426.4	1409.1	1272	1200
2024-11-01	1426.4	1409.1	1272	1200
2024-10-01	1416.8	1409.1	1200	1200
2024-09-01	1416.8	1409.1	1200	1200
2024-08-01	1416.8	1409.1	1200	1200
2024-07-01	1341.4	1339.4	1200	1200
2024-09-01	1341.4	1339.4	1200	1200
2024-05-01	1280.6	1278.3	1200	1200
2024-04-01	1231.6	1218.5	1200	1200
2024-03-01	1240.6	1227.5	1200	1200
2024-02-01	1240.6	1227.5	1200	1200
2024-01-01	1240.6	1227.5	1200	1200
2023-12-01	1240.6	1227.5	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	SACSSA Nationals 2025 (U15 Boys)	2025-10-18	2025-10-18	Rapid	Ekurhuleni (GE)	6	6	4	Yes	Analysis
2	Bojanala's Pre-Exam 2025 (Rooks)	2025-05-31	2025-05-31	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
3	Bojanala's Pre-Exam 2025 (Knights)	2025-05-31	2025-05-31	Standard	Bojanala Platina (NBR)	5	0	0	No	Analysis
4	Bojanala Circuit Championships 1 of 4 2025 (U16)	2025-03-01	2025-03-01	Standard	Bojanala Platina (NBR)	5	4	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	SACSSA Nationals 2025 (U15 Boys)	2025-10-18	2025-10-18	Rapid	Ekurhuleni (GE)	6	6	4	Yes	Analysis
2	Bojanala's Pre-Exam 2025 (Rooks)	2025-05-31	2025-05-31	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
3	Bojanala's Pre-Exam 2025 (Knights)	2025-05-31	2025-05-31	Standard	Bojanala Platina (NBR)	5	0	0	No	Analysis
4	Bojanala Circuit Championships 1 of 4 2025 (U16)	2025-03-01	2025-03-01	Standard	Bojanala Platina (NBR)	5	4	1	Yes	Analysis
5	SACSSA Nationals 2024 (U13 Boys)	2024-10-19	2024-10-19	Rapid	Ekurhuleni (GE)	6	6	5	Yes	Analysis
6	Bojanala's Clash Of Schools 2024 (U13)	2024-07-20	2024-07-20	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
7	Hamakom's Pioneers Of The Board 2024 (Bishops)	2024-07-13	2024-07-13	Standard	Bojanala Platina (NBR)	5	5	2.5	Yes	Analysis
8	Schoemies' Kwaggarus Chess Getaway 2024 (Senior)	2024-05-18	2024-05-18	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
9	Bojanala Olienpark's One For The Ages 2024 (Bishops)	2024-04-20	2024-04-20	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
10	Bojanala Silwerrand's Rating Implosion 2024 (Bishops)	2024-03-16	2024-03-16	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
11	Olienpark - 2nd One for the Ages 2023 (U14)	2023-05-13	2023-05-13	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
12	Schoemies Kings & Queens 2023 (Rooks)	2023-03-18	2023-03-18	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
13	One For The Ages 2023 (U14)	2023-02-18	2023-02-18	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
14	Harties Wolf Pack 2023 (Rooks)	2023-01-21	2023-01-21	Standard	Bojanala Platina (NBR)	5	4	1.5	Yes	Analysis
15	Bojanala Chess Federation Clash of Schools 2022 (PS Championship)	2022-07-22	2022-07-22	Standard	Bojanala Platina (NBR)	5	4	3	Yes	Analysis
16	One For The Ages 2022 (U12)	2022-07-16	2022-07-16	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
17	Lebone II 2022 (C)	2022-02-12	2022-02-12	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
18	Hoerskool Brits Toernooi 2020 (U10)	2020-03-14	2020-03-14	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
19	Laerskool Proteapark 2020 (B)	2020-02-29	2020-02-29	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
20	Lebone II 2020 (U10)	2020-02-15	2020-02-15	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
21	2019 South African Junior Team Championships (U10A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
22	Inter Region 2019 (U10 Open)	2019-10-19	2019-10-19	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
23	Lebone II 2019 (U10)	2019-09-14	2019-09-14	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
24	Laerskool Brits 2019 (U10)	2019-08-31	2019-08-31	Standard	Bojanala Platina (NBR)	5	5	5	Yes	Analysis
25	Laerskool Rustenburg 2019 (U10)	2019-08-17	2019-08-17	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
26	Grenville 2019 (U10)	2019-06-08	2019-06-08	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
27	Laerskool Olienpark 2019 (U10)	2019-04-06	2019-04-06	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
28	Hoerskool Rustenburg Skaak 2019 (U10)	2019-04-13	2019-04-13	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
29	2019 South African Junior Closed Chess Championship (U8 Open)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	4	Yes	Analysis
30	Rustenburg Noord Primary Tournament 2019 (U10)	2019-02-09	2019-02-09	Standard	Bojanala Platina (NBR)	5	5	3.5	Yes	Analysis
31	Laerskool Vastrap Tournament 2019 (D)	2019-02-23	2019-02-23	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
32	Hoerskool Brits Tournament 2019 (U12)	2019-02-09	2019-02-09	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
33	2018 Tshwane Inter Region (U8C)	2018-12-01	2018-12-01	Standard	Cape Town (WCT)	6	5	4	Yes	Analysis
34	South African Junior Team Championships 2018 (U8B+U8 Girls)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
35	Lebone II Chess 2018 (U8)	2018-09-01	2018-09-01	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
36	Bojanala Regionals 2018 (U8)	2018-09-15	2018-09-15	Standard	Bojanala Platina (NBR)	5	5	3.5	Yes	Analysis
37	Boys and Girls 2018 (U8 Boys)	2018-08-25	2018-08-25	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
38	Laerskool Brits Tournament 2018 (U8)	2018-08-04	2018-08-04	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
39	Laerskool Proteapark Chess 2018 (E)	2018-05-19	2018-05-19	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
40	Laerskool Olienpark 2018 (U8)	2018-04-21	2018-04-21	Standard	Bojanala Platina (NBR)	5	5	2.5	Yes	Analysis
41	Hoerskool Brits 2018 (U8)	2018-03-17	2018-03-17	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis

#	Games	Start				End
1	8	Tournament Laerskool Rustenburg 2019				Tournament Lebone II 2019
		date 2019-08-17	rnd 4	type Standard	result 1	date 2019-09-14	rnd 1	type Standard	result 1
		Opponent Schwim, R (Rinus)				Opponent Masilela, K (Kholwa-Ku-Zimu)
2	8	Tournament Hoerskool Brits 2018				Tournament Laerskool Olienpark 2018
		date 2018-03-17	rnd 1	type Standard	result 1	date 2018-04-21	rnd 3	type Standard	result 1
		Opponent Van Der Berg, KW (Kai)				Opponent Roos, J (Justin)
3	6	Tournament Bojanala Olienpark's One For The Ages 2024				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2024-04-20	rnd 3	type Standard	result 1	date 2024-05-18	rnd 3	type Standard	result 1
		Opponent De Kock, D (De-Han)				Opponent De Kock, D (De-Han)

#	Games	Start				End
1	8	Tournament Laerskool Rustenburg 2019				Tournament Lebone II 2019
		date 2019-08-17	rnd 4	type Standard	result 1	date 2019-09-14	rnd 1	type Standard	result 1
		Opponent Schwim, R (Rinus)				Opponent Masilela, K (Kholwa-Ku-Zimu)
2	8	Tournament Hoerskool Brits 2018				Tournament Laerskool Olienpark 2018
		date 2018-03-17	rnd 1	type Standard	result 1	date 2018-04-21	rnd 3	type Standard	result 1
		Opponent Van Der Berg, KW (Kai)				Opponent Roos, J (Justin)
3	6	Tournament Bojanala Olienpark's One For The Ages 2024				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2024-04-20	rnd 3	type Standard	result 1	date 2024-05-18	rnd 3	type Standard	result 1
		Opponent De Kock, D (De-Han)				Opponent De Kock, D (De-Han)

#	Games	Start				End
1	3	Tournament SACSSA Nationals 2024				Tournament SACSSA Nationals 2024
		date 2024-10-19	rnd 1	type Rapid	result 1	date 2024-10-19	rnd 3	type Rapid	result 1
		Opponent Pillay, J (Jeremiah)				Opponent Timol, S (Shaiyur)
2	2	Tournament SACSSA Nationals 2024				Tournament SACSSA Nationals 2024
		date 2024-10-19	rnd 5	type Rapid	result 1	date 2024-10-19	rnd 6	type Rapid	result 1
		Opponent De Xiang, T (Tim Sun)				Opponent Oni, D (Derrick)

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament Laerskool Rustenburg 2019				Tournament Lebone II 2019
		date 2019-08-17	rnd 4	type Standard	result 1	date 2019-09-14	rnd 1	type Standard	result 1
		Opponent Schwim, R (Rinus)				Opponent Masilela, K (Kholwa-Ku-Zimu)
2	6	Tournament Bojanala Olienpark's One For The Ages 2024				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2024-04-20	rnd 3	type Standard	result 1	date 2024-05-18	rnd 3	type Standard	result 1
		Opponent De Kock, D (De-Han)				Opponent De Kock, D (De-Han)
3	6	Tournament Laerskool Olienpark 2019				Tournament Hoerskool Rustenburg Skaak 2019
		date 2019-04-06	rnd 2	type Standard	result 1	date 2019-04-13	rnd 2	type Standard	result 1
		Opponent Matshaba, P (Pako)				Opponent Mostert, PJ (Pieter)

#	Games	Start				End
1	8	Tournament Laerskool Rustenburg 2019				Tournament Lebone II 2019
		date 2019-08-17	rnd 4	type Standard	result 1	date 2019-09-14	rnd 1	type Standard	result 1
		Opponent Schwim, R (Rinus)				Opponent Masilela, K (Kholwa-Ku-Zimu)
2	6	Tournament Bojanala Olienpark's One For The Ages 2024				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2024-04-20	rnd 3	type Standard	result 1	date 2024-05-18	rnd 3	type Standard	result 1
		Opponent De Kock, D (De-Han)				Opponent De Kock, D (De-Han)
3	6	Tournament Laerskool Olienpark 2019				Tournament Hoerskool Rustenburg Skaak 2019
		date 2019-04-06	rnd 2	type Standard	result 1	date 2019-04-13	rnd 2	type Standard	result 1
		Opponent Matshaba, P (Pako)				Opponent Mostert, PJ (Pieter)

#	Games	Start				End
1	3	Tournament SACSSA Nationals 2024				Tournament SACSSA Nationals 2024
		date 2024-10-19	rnd 1	type Rapid	result 1	date 2024-10-19	rnd 3	type Rapid	result 1
		Opponent Pillay, J (Jeremiah)				Opponent Timol, S (Shaiyur)
2	2	Tournament SACSSA Nationals 2024				Tournament SACSSA Nationals 2024
		date 2024-10-19	rnd 5	type Rapid	result 1	date 2024-10-19	rnd 6	type Rapid	result 1
		Opponent De Xiang, T (Tim Sun)				Opponent Oni, D (Derrick)

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	Roos ,J (Justin)	11	4	-115.9	11	4	-115.9	0	0	0	0	0	0
1	Roos ,J (Justin)	11	1298	1182	11	1287.1	1182	0	0	0	0	0	0
2	Britz ,JD (Jakobus Dirk)	7	4.5	121.4	7	4.5	121.4	0	0	0	0	0	0
2	Britz ,JD (Jakobus Dirk)	7	1297.7	1419.1	7	1296.4	1419.1	0	0	0	0	0	0
3	Van Der Berg ,KW (Kai Willem)	5	2.5	0	5	2.5	0	0	0	0	0	0	0
3	Van Der Berg ,KW (Kai Willem)	5	1280.6	1280.6	5	1290.5	1280.6	0	0	0	0	0	0
4	Bester ,D (Daniel)	4	0	-425	4	0	-425	0	0	0	0	0	0
4	Bester ,D (Daniel)	4	1364.8	939.8	4	1370.1	939.8	0	0	0	0	0	0
5	Mostert ,PJ (Pieter)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
5	Mostert ,PJ (Pieter)	4	1217.2	1004.7	4	1210.3	1004.7	0	0	0	0	0	0
6	Grobler ,R (Rowan)	4	2	0	4	2	0	0	0	0	0	0	0
6	Grobler ,R (Rowan)	4	1421.2	1421.2	4	1423.9	1421.2	0	0	0	0	0	0
7	Bantseke ,B (Boikanyo)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
7	Bantseke ,B (Boikanyo)	3	1005.5	1147.2	3	966.4	1147.2	0	0	0	0	0	0
8	De Kock ,D (De-Han)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
8	De Kock ,D (De-Han)	3	1235.1	1518.4	3	1238.3	1518.4	0	0	0	0	0	0
9	Diale ,A (Aobakwe)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
9	Diale ,A (Aobakwe)	3	1235.1	1093.5	3	1234.4	1093.5	0	0	0	0	0	0
10	Obrien ,P (Patrick)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
10	Obrien ,P (Patrick)	3	1169.9	1453.2	3	1161.1	1453.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Nortman, WJ (Wilhelmus Johan)

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Last 24 raw ratings

Rating graph

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Top 3 Streaks

Top 10 opponents most often played

Norms