Chess South Africa Ratings Database

PLAYER PAGE

Personal

Le Roux, J (Joss)

Chess SA id

1110141742

FIDE id

Date of birth

2011-04-16 (U16)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

15.1

Junior GPX Points

1028

Item	Main	Standard	Rapid	Blitz
Rating	1208	1225	1188.4	1200
Raw rating	1178	1225	1135.6	1200
Weighted rating	1208	1223.5	1188.4	1200
Weighted performance	950.4	990.5	0	0
Floor	742.5	752.8	711.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	171.1	160	181.7	165.8
Highest rating	1390.8 2022-05-01	1396.7 2022-05-01	1215.1 2024-02-01	1200 2018-10-01
Highest raw rating	1242.5 2022-06-01	1252.8 2024-02-01	1211.6 2024-03-01	1200 2024-02-01
Highest weighted rating	1242.5 2024-03-01	1252.8 2024-03-01	1211.6 2024-10-01	1200 2018-10-01
Highest weighted performance	1390.8 2022-05-01	1396.7 2022-05-01	1215.1 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.8	0	-4.7	0
New rating	1205.2	1225	1183.6	1200
Analysis
Rating	1208	1225	1188.4	1200
Raw rating	1178	1225	1135.6	1200
Weighted rating	1208	1223.5	1188.4
Weighted performance	950.4	990.5	0
K-factor	36	36	36	36
Floor	742.5	752.8	711.6	700
Max/Min rating change allowed	171.1	160	181.7	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	1178	1225	1135.6	1200
New weighted rating	1205.2	1223.4	1183.6	1200
New weighted performance	950.1	990.1	0	0
Temp new rating	1205.2	1225	1183.6	1200
Temp new rating +/-	-2.8	0	-4.7	0
Final new rating +/-	-2.8	0	-4.7	0
New rating	1205.2	1225	1183.6	1200
New K-factor	36	36	36	36
New floor	742.5	752.8	711.6	700

Item	Main	Standard	Rapid
	0	0	0
	14	10	4
	23	11	12
	6	0	6
	6	6	0
	0	0	0
History	49	27	22

Games since
	Main 43	Standard 21		Rapid 22		Blitz 0
Gender	Male
Age group	U16
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3978		1324		199
Male	3002		927		131
U16	640		226		41
U16 Male	442		142		24
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1690		858		157
Male	1289		634		110
U16	280		141		27
U16 Male	212		102		18
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	14	4	28.57	-182.1	1242.6	1060.5
Standard	10	4	40	-85	1222.5	1137.5
Rapid	4	0	0	-425	1292.9	867.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	49	21.5	43.88	-52	1218.7	1166.7
Standard	27	13.5	50	0	1201.2	1201.2
Rapid	22	8	36.36	-115.9	1240.2	1124.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1178	1225	1135.6	1200
2025-09-01	1178	1225	1135.6	1200
2025-08-01	1215.2	1225	1198.9	1200
2025-07-01	1215.2	1225	1198.9	1200
2025-06-01	1215.2	1225	1198.9	1200
2025-05-01	1215.2	1225	1198.9	1200
2025-04-01	1213.7	1222.7	1198.9	1200
2025-03-01	1228.4	1238.8	1198.9	1200
2025-02-01	1215.2	1225.9	1197.3	1200
2025-01-01	1200.3	1219.3	1174.5	1200
2024-12-01	1200.3	1219.3	1174.5	1200
2024-11-01	1200.3	1219.3	1174.5	1200
2024-10-01	1217.4	1219.3	1211.6	1200
2024-09-01	1217.4	1219.3	1211.6	1200
2024-08-01	1217.4	1219.3	1211.6	1200
2024-07-01	1217.4	1219.3	1211.6	1200
2024-06-01	1217.4	1219.3	1211.6	1200
2024-08-01	1182.7	1182.2	1211.6	1200
2024-04-01	1182.7	1182.2	1211.6	1200
2024-03-01	1236.5	1252.8	1211.6	1200
2024-02-01	1236	1252.8	1199.2	1200
2024-01-01	1236	1252.8	1199.2	1200
2023-12-01	1236	1252.8	1199.2	1200
2023-11-01	1236	1252.8	1199.2	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	Cape Winelands Top Schools 2025 (U15)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	0	Yes	Analysis
2	Cape Winelands Schools Prestige 2025 (U15 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	1	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U15 Boys)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Winelands Top Schools 2025 (U15)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	0	Yes	Analysis
2	Cape Winelands Schools Prestige 2025 (U15 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	1	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U15 Boys)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
4	Worcester Knock-Out 2024 (U13 Boys)	2024-10-19	2024-10-19	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis
5	Worcester PS League 2024 (U13)	2024-04-27	2024-04-27	Standard	Cape Winelands (WCW)	7	6	4	Yes	Analysis
6	Cape Winelands Schools - Prestige 2024 (U13 Boys)	2024-03-02	2024-03-02	Standard	Cape Winelands (WCW)	5	5	1	Yes	Analysis
7	Cape Winelands Schools - PS Trials 1 2024 (U13 Boys)	2024-02-10	2024-02-10	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
8	Worcester Knock-Out 2023 (U13 Boys)	2023-10-14	2023-10-14	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
9	Worcester Primary School League 2022 (U11)	2022-05-21	2022-05-21	Standard	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Worcester PS League 2024				Tournament Worcester PS League 2024
		date 2024-04-27	rnd 3	type Standard	result 1	date 2024-04-27	rnd 5	type Standard	result 1
		Opponent Dippenaar, Z (Zaybian)				Opponent Coetzee, C (Carli)
2	3	Tournament Worcester Knock-Out 2023				Tournament Worcester Knock-Out 2023
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2023-10-14	rnd 6	type Rapid	result 1
		Opponent Van Reenen, A (Alezandro)				Opponent Van Wyk, D (Dawin-Lee)
3	3	Tournament Worcester Primary School League 2022				Tournament Worcester Primary School League 2022
		date 2022-05-21	rnd 1	type Standard	result 1	date 2022-05-21	rnd 3	type Standard	result 1
		Opponent Smith, N (Nehe-Mia)				Opponent Wentzel, C (Cruxnielle)

#	Games	Start				End
1	3	Tournament Worcester PS League 2024				Tournament Worcester PS League 2024
		date 2024-04-27	rnd 3	type Standard	result 1	date 2024-04-27	rnd 5	type Standard	result 1
		Opponent Dippenaar, Z (Zaybian)				Opponent Coetzee, C (Carli)
2	3	Tournament Worcester Primary School League 2022				Tournament Worcester Primary School League 2022
		date 2022-05-21	rnd 1	type Standard	result 1	date 2022-05-21	rnd 3	type Standard	result 1
		Opponent Smith, N (Nehe-Mia)				Opponent Wentzel, C (Cruxnielle)
3	2	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-08	rnd 4	type Standard	result 1	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Pietersen, A (A-jay)				Opponent Van Eeden, F (Fj)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Worcester Knock-Out 2024
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2024-10-19	rnd 1	type Rapid	result 1
		Opponent Flaum, B (Ben)				Opponent Niemand, K (Khian)
2	3	Tournament Worcester Knock-Out 2023				Tournament Worcester Knock-Out 2023
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2023-10-14	rnd 6	type Rapid	result 1
		Opponent Van Reenen, A (Alezandro)				Opponent Van Wyk, D (Dawin-Lee)
3	1	Tournament Worcester Knock-Out 2024				Tournament Worcester Knock-Out 2024
		date 2024-10-19	rnd 3	type Rapid	result 1	date 2024-10-19	rnd 3	type Rapid	result 1
		Opponent Oliphant, E (Enzo)				Opponent Oliphant, E (Enzo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Worcester PS League 2024				Tournament Worcester PS League 2024
		date 2024-04-27	rnd 3	type Standard	result 1	date 2024-04-27	rnd 5	type Standard	result 1
		Opponent Dippenaar, Z (Zaybian)				Opponent Coetzee, C (Carli)
2	3	Tournament Worcester Knock-Out 2023				Tournament Worcester Knock-Out 2023
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2023-10-14	rnd 6	type Rapid	result 1
		Opponent Van Reenen, A (Alezandro)				Opponent Van Wyk, D (Dawin-Lee)
3	2	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-08	rnd 4	type Standard	result 1	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Pietersen, A (A-jay)				Opponent Van Eeden, F (Fj)

#	Games	Start				End
1	3	Tournament Worcester PS League 2024				Tournament Worcester PS League 2024
		date 2024-04-27	rnd 3	type Standard	result 1	date 2024-04-27	rnd 5	type Standard	result 1
		Opponent Dippenaar, Z (Zaybian)				Opponent Coetzee, C (Carli)
2	2	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-08	rnd 4	type Standard	result 1	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Pietersen, A (A-jay)				Opponent Van Eeden, F (Fj)
3	2	Tournament Cape Winelands Schools - Prestige 2024				Tournament Worcester PS League 2024
		date 2024-03-02	rnd 5	type Standard	result 1	date 2024-04-27	rnd 1	type Standard	result 1
		Opponent Baron, L (Lial)				Opponent Kemane, R (Reabetswe)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Worcester Knock-Out 2024
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2024-10-19	rnd 1	type Rapid	result 1
		Opponent Flaum, B (Ben)				Opponent Niemand, K (Khian)
2	3	Tournament Worcester Knock-Out 2023				Tournament Worcester Knock-Out 2023
		date 2023-10-14	rnd 4	type Rapid	result 1	date 2023-10-14	rnd 6	type Rapid	result 1
		Opponent Van Reenen, A (Alezandro)				Opponent Van Wyk, D (Dawin-Lee)
3	1	Tournament Worcester Knock-Out 2024				Tournament Worcester Knock-Out 2024
		date 2024-10-19	rnd 3	type Rapid	result 1	date 2024-10-19	rnd 3	type Rapid	result 1
		Opponent Oliphant, E (Enzo)				Opponent Oliphant, E (Enzo)

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	Amsterdam ,J (Jodan)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
1	Amsterdam ,J (Jodan)	3	1185.6	1185.6	3	1172.1	1185.6	0	0	0	0	0	0
2	Smith ,N (Nehe-Mia)	2	1	0	2	1	0	0	0	0	0	0	0
2	Smith ,N (Nehe-Mia)	2	1150.6	1150.6	2	1144	1150.6	0	0	0	0	0	0
3	Wentzel ,C (Cruxnielle)	2	2	425	2	2	425	0	0	0	0	0	0
3	Wentzel ,C (Cruxnielle)	2	1180.4	1605.4	2	1180	1605.4	0	0	0	0	0	0
4	Philander ,E (Eagan)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Philander ,E (Eagan)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Liu ,F (Furui)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Liu ,F (Furui)	1	1463.2	1038.2	1	1447.9	1038.2	0	0	0	0	0	0
6	Van Eeden ,F (Fj)	1	1	425	1	1	425	0	0	0	0	0	0
6	Van Eeden ,F (Fj)	1	1191.2	1616.2	1	1172.6	1616.2	0	0	0	0	0	0
7	Makae ,A (Asiphile)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Makae ,A (Asiphile)	1	1195.5	770.5	1	1200	770.5	0	0	0	0	0	0
8	Potgieter ,D (Divan)	1	1	425	1	1	425	0	0	0	0	0	0
8	Potgieter ,D (Divan)	1	1196.5	1621.5	1	1199.1	1621.5	0	0	0	0	0	0
9	Smith ,L (Logan)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Smith ,L (Logan)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Muvumbi ,L (Leeroy)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Muvumbi ,L (Leeroy)	1	1167.5	742.5	1	1200	742.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Le Roux, J (Joss)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms