Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kleijnhans, J (Josua)

Chess SA id

1120119032

FIDE id

Date of birth

2012-10-30 (U14)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1136.4

Item	Main	Standard	Rapid	Blitz
Rating	1179.4	1172.7	1200	1200
Raw rating	1177.1	1167.8	1200	1200
Weighted rating	1179.4	1172.7	1200	1200
Weighted performance	1063.1	1057	0	0
Floor	764.9	761.1	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	171.3	173.6	165.8	165.8
Highest rating	1278.7 2022-05-01	1274.8 2022-05-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1264.9 2022-06-01	1261.1 2022-06-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1264.9 2023-03-01	1261.1 2023-03-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1278.7 2022-05-01	1274.8 2022-05-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.1	-0.4	0	0
New rating	1179.3	1172.2	1200	1200
Analysis
Rating	1179.4	1172.7	1200	1200
Raw rating	1177.1	1167.8	1200	1200
Weighted rating	1179.4	1172.7	1200
Weighted performance	1063.1	1057	0
K-factor	36	36	36	36
Floor	764.9	761.1	700	700
Max/Min rating change allowed	171.3	173.6	165.8	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	1177.1	1167.8	1200	1200
New weighted rating	1179.3	1172.2	1200	1200
New weighted performance	1056.2	1050.1	0	0
Temp new rating	1179.3	1172.2	1200	1200
Temp new rating +/-	-0.1	-0.4	0	0
Final new rating +/-	-0.1	-0.4	0	0
New rating	1179.3	1172.2	1200	1200
New K-factor	36	36	36	36
New floor	764.9	761.1	700	700

Item	Main	Standard	Rapid
	0	0	0
	9	5	4
	23	23	0
	24	24	0
	29	29	0
	5	5	0
History	94	90	4

Games since
	Main 32	Standard 28		Rapid 4		Blitz 0
Gender	Male
Age group	U14
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	9	4	44.44	-47.2	1202.8	1155.6
Standard	5	2	40	-85	1205.1	1120.1
Rapid	4	2	50	0	1200	1200
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	94	44	46.81	-27.1	1211	1183.9
Standard	90	42	46.67	-28.3	1211.5	1183.2
Rapid	4	2	50	0	1200	1200
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1177.1	1167.8	1200	1200
2025-09-30	1177.1	1167.8	1200	1200
2025-09-01	1177.1	1167.8	1200	1200
2025-08-01	1186.1	1180.1	1200	1200
2025-07-01	1186.1	1180.1	1200	1200
2025-06-01	1186.1	1180.1	1200	1200
2025-05-01	1186.1	1180.1	1200	1200
2025-04-01	1186.1	1180.1	1200	1200
2025-03-01	1186.1	1180.1	1200	1200
2025-02-01	1186.1	1180.1	1200	1200
2025-01-01	1186.1	1180.1	1200	1200
2024-12-01	1168.8	1161.4	1200	1200
2024-11-01	1168.8	1161.4	1200	1200
2024-10-01	1168.8	1161.4	1200	1200
2024-09-01	1179.3	1176.2	1200	1200
2024-08-01	1179.3	1176.2	1200	1200
2024-07-01	1135.4	1120.4	1200	1200
2024-09-01	1175.6	1171.9	1200	1200
2024-05-01	1175.6	1171.9	1200	1200
2024-04-01	1175.6	1171.9	1200	1200
2024-03-01	1175.6	1171.9	1200	1200
2024-02-01	1175.6	1171.9	1200	1200
2024-01-01	1196.9	1194.2	1200	1200
2023-12-01	1196.9	1194.2	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	Ekurhuleni North Schools Teams 2025 (U13 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Edenvale Germiston Cluster Teams 2025 (U13)	2025-07-25	2025-07-25	Rapid	Ekurhuleni (GE)	6	4	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni North Schools Teams 2025 (U13 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Edenvale Germiston Cluster Teams 2025 (U13)	2025-07-25	2025-07-25	Rapid	Ekurhuleni (GE)	6	4	2	Yes	Analysis
3	Gauteng Inter-Region at UJ 2024 (U14 Candidates)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis
4	Ekurhuleni North Schools Finals - Teams 2024 (U13 Open)	2024-08-03	2024-08-03	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
5	Ekurhuleni Trails 2 2024 (U14)	2024-07-27	2024-07-27	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
6	Ekurhuleni Trails 1 2024 (U14)	2024-06-01	2024-06-01	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
7	2024 Gauteng Inter-Region Chess Championship (U12B)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
8	2023 Ekurhuleni North District Schools Finals (U13)	2023-07-29	2023-07-29	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
9	Ekurhuleni Chess Trial 3 2023 (U12)	2023-06-17	2023-06-17	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
10	Ekurhuleni Trials 2 2023 (U12)	2023-04-22	2023-04-22	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
11	Ekhuruleni Chess Trials 1 2023 (U12)	2023-03-25	2023-03-25	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
12	Ekurhuleni Springs Open 4 March 2023 (D)	2023-03-04	2023-03-04	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
13	2022 South African Junior Team Chess Championships (U12 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
14	Ekurhuleni-North Schools Finals Indiv 2022 (U11 Boys)	2022-05-13	2022-05-13	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
15	Ekurhuleni Trials 1 2022 (U12)	2022-04-23	2022-04-23	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
16	2022 Gauteng Interregion (U10 Open)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
17	Ekurhuleni Chess Open 2022 (D)	2022-01-08	2022-01-09	Standard	Ekurhuleni (GE)	7	7	3	Yes	Analysis
18	Ekurhuleni Trials (3)	2021-11-06	2021-11-06	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
19	Ekurhuleni Grand Prix 2019 (D)	2019-09-14	2019-09-14	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis

#	Games	Start				End
1	5	Tournament Ekurhuleni Chess Trial 3 2023				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2023-06-17	rnd 3	type Standard	result 0.5	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Fivaz, K (Kaylee)				Opponent Van Der Merwe, L (Luke)
2	4	Tournament Ekurhuleni Trials 1 2022				Tournament Ekurhuleni-North Schools Finals Indiv 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-05-13	rnd 2	type Standard	result 1
		Opponent Twala, B (Buhle)				Opponent Visser, K (Kaiden)
3	4	Tournament Ekurhuleni Trials				Tournament Ekurhuleni Chess Open 2022
		date 2021-11-06	rnd 3	type Standard	result 1	date 2022-01-08	rnd 1	type Standard	result 1
		Opponent Fick, L (Logan Nicolas)				Opponent Van Der Schyff, C (Charlize)

#	Games	Start				End
1	5	Tournament Ekurhuleni Chess Trial 3 2023				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2023-06-17	rnd 3	type Standard	result 0.5	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Fivaz, K (Kaylee)				Opponent Van Der Merwe, L (Luke)
2	4	Tournament Ekurhuleni Trials 1 2022				Tournament Ekurhuleni-North Schools Finals Indiv 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-05-13	rnd 2	type Standard	result 1
		Opponent Twala, B (Buhle)				Opponent Visser, K (Kaiden)
3	4	Tournament Ekurhuleni Trials				Tournament Ekurhuleni Chess Open 2022
		date 2021-11-06	rnd 3	type Standard	result 1	date 2022-01-08	rnd 1	type Standard	result 1
		Opponent Fick, L (Logan Nicolas)				Opponent Van Der Schyff, C (Charlize)

#	Games	Start				End
1	2	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 2	type Rapid	result 1	date 2025-07-25	rnd 3	type Rapid	result 1
		Opponent Niederbroker, A (Aiden)				Opponent Mudimeli, A (Adivhaho)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Ekurhuleni Chess Trial 3 2023				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2023-06-17	rnd 4	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Botha, C (Cale)				Opponent Van Der Merwe, L (Luke)
2	4	Tournament Ekurhuleni Trials 1 2022				Tournament Ekurhuleni-North Schools Finals Indiv 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-05-13	rnd 2	type Standard	result 1
		Opponent Twala, B (Buhle)				Opponent Visser, K (Kaiden)
3	4	Tournament Ekurhuleni Trials				Tournament Ekurhuleni Chess Open 2022
		date 2021-11-06	rnd 3	type Standard	result 1	date 2022-01-08	rnd 1	type Standard	result 1
		Opponent Fick, L (Logan Nicolas)				Opponent Van Der Schyff, C (Charlize)

#	Games	Start				End
1	4	Tournament Ekurhuleni Chess Trial 3 2023				Tournament 2023 Ekurhuleni North District Schools Finals
		date 2023-06-17	rnd 4	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Botha, C (Cale)				Opponent Van Der Merwe, L (Luke)
2	4	Tournament Ekurhuleni Trials 1 2022				Tournament Ekurhuleni-North Schools Finals Indiv 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-05-13	rnd 2	type Standard	result 1
		Opponent Twala, B (Buhle)				Opponent Visser, K (Kaiden)
3	4	Tournament Ekurhuleni Trials				Tournament Ekurhuleni Chess Open 2022
		date 2021-11-06	rnd 3	type Standard	result 1	date 2022-01-08	rnd 1	type Standard	result 1
		Opponent Fick, L (Logan Nicolas)				Opponent Van Der Schyff, C (Charlize)

#	Games	Start				End
1	2	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 2	type Rapid	result 1	date 2025-07-25	rnd 3	type Rapid	result 1
		Opponent Niederbroker, A (Aiden)				Opponent Mudimeli, A (Adivhaho)

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	Van Loggerenberg ,E (Elandre)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Van Loggerenberg ,E (Elandre)	2	1224.4	799.4	2	1227.4	799.4	0	0	0	0	0	0
2	Strydom ,S (Soon)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
2	Strydom ,S (Soon)	2	1201.7	1414.2	2	1200.4	1414.2	0	0	0	0	0	0
3	Sauls ,N (Nathan)	2	1	0	2	1	0	0	0	0	0	0	0
3	Sauls ,N (Nathan)	2	1137.3	1137.3	2	1126.8	1137.3	0	0	0	0	0	0
4	Gruenenfelder ,L (Laker)	2	1	0	2	1	0	0	0	0	0	0	0
4	Gruenenfelder ,L (Laker)	2	1208.6	1208.6	2	1201.2	1208.6	0	0	0	0	0	0
5	Niederbroker ,A (Aiden)	2	1	0	0	0	0	2	1	0	0	0	0
5	Niederbroker ,A (Aiden)	2	1200	1200	0	0	0	2	1200	1200	0	0	0
6	Mudimeli ,A (Adivhaho)	2	1	0	0	0	0	2	1	0	0	0	0
6	Mudimeli ,A (Adivhaho)	2	1200	1200	0	0	0	2	1200	1200	0	0	0
7	Laeke ,K (Kaleb)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Laeke ,K (Kaleb)	1	1094.8	669.8	1	1096	669.8	0	0	0	0	0	0
8	Van Der Schyff ,C (Charlize)	1	1	425	1	1	425	0	0	0	0	0	0
8	Van Der Schyff ,C (Charlize)	1	1192.7	1617.7	1	1190.4	1617.7	0	0	0	0	0	0
9	Kalpee ,G (Gia)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Kalpee ,G (Gia)	1	1130.9	705.9	1	1118.4	705.9	0	0	0	0	0	0
10	Cronje ,A (Anru)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Cronje ,A (Anru)	1	1278.2	853.2	1	1281.7	853.2	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

Kleijnhans, J (Josua)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms