Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, J (Jano)

Chess SA id

1120307492

FIDE id

Date of birth

2012-03-27 (U14)

Gender

Male

Region

Ehlanzeni (MEN)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-05-10

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1088.9

Item	Main	Standard	Rapid	Blitz
Rating	1217	1220.1	1200	1200
Raw rating	1217	1220.1	1200	1200
Weighted rating	1206.1	1206.6	1200	1200
Weighted performance	1016	1013.7	0	0
Floor	725.2	728	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	161.9	161.1	165.8	165.8
Highest rating	1331.5 2024-07-01	1322.8 2024-07-01	1200 2024-07-01	1200 2024-07-01
Highest raw rating	1225.2 2024-08-01	1228 2024-08-01	1200 2024-07-01	1200 2024-07-01
Highest weighted rating	1225.2 2024-08-01	1228 2024-08-01	1200 2024-07-01	1200 2024-07-01
Highest weighted performance	1331.5 2024-07-01	1322.8 2024-07-01	1200 2024-07-01	1200 2024-07-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1217	1220.1	1200	1200
Analysis
Rating	1217	1220.1	1200	1200
Raw rating	1217	1220.1	1200	1200
Weighted rating	1206.1	1206.6	1200
Weighted performance	1016	1013.7	0
K-factor	36	36	36	36
Floor	725.2	728	700	700
Max/Min rating change allowed	161.9	161.1	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	1217	1220.1	1200	1200
New weighted rating	1207.2	1207.9	1200	1200
New weighted performance	1009.5	1007.2	0	0
Temp new rating	1217	1220.1	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1217	1220.1	1200	1200
New K-factor	36	36	36	36
New floor	725.2	728	700	700

Item	Main	Standard
	0	0
	14	14
	9	9
	0	0
	0	0
	0	0
History	23	23

Games since
	Main 23	Standard 23		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Ehlanzeni (MEN)
Province	Mpumalanga (MP)
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	14	6	42.86	-60.7	1158.4	1097.7
Standard	14	6	42.86	-60.7	1158.4	1097.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	23	10.5	45.65	-37	1166.3	1129.4
Standard	23	10.5	45.65	-37	1166.3	1129.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1217	1220.1	1200	1200
2025-09-30	1217	1220.1	1200	1200
2025-09-01	1217	1220.1	1200	1200
2025-08-01	1217	1220.1	1200	1200
2025-07-01	1217	1220.1	1200	1200
2025-06-01	1217	1220.1	1200	1200
2025-05-01	1198.4	1197.1	1200	1200
2025-04-01	1198.2	1196.8	1200	1200
2025-03-01	1193.6	1191.2	1200	1200
2025-02-01	1198.7	1197.5	1200	1200
2025-01-01	1193.4	1190.2	1200	1200
2024-12-01	1193.4	1190.2	1200	1200
2024-11-01	1193.4	1190.2	1200	1200
2024-10-01	1193.4	1190.2	1200	1200
2024-09-01	1193.4	1190.2	1200	1200
2024-08-01	1225.2	1228	1200	1200
2024-07-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	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	Curro Open Chess Tournament 2025 (U14)	2025-05-10	2025-05-10	Standard	Ehlanzeni (MEN)	5	5	3	Yes	Analysis
2	Penryn 2025 (C)	2025-02-22	2025-02-22	Standard	Ehlanzeni (MEN)	5	5	2	Yes	Analysis
3	Uplands Chess Tournament 2025 (C)	2025-02-08	2025-02-08	Standard	Ehlanzeni (MEN)	5	4	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Curro Open Chess Tournament 2025 (U14)	2025-05-10	2025-05-10	Standard	Ehlanzeni (MEN)	5	5	3	Yes	Analysis
2	Penryn 2025 (C)	2025-02-22	2025-02-22	Standard	Ehlanzeni (MEN)	5	5	2	Yes	Analysis
3	Uplands Chess Tournament 2025 (C)	2025-02-08	2025-02-08	Standard	Ehlanzeni (MEN)	5	4	1	Yes	Analysis
4	Laerskool Lydenburg 2024 (U14)	2024-08-24	2024-08-24	Standard	Ehlanzeni (MEN)	5	4	1	Yes	Analysis
5	Uplands Chess Tournament 2024 (C)	2024-07-27	2024-07-27	Standard	Ehlanzeni (MEN)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament Uplands Chess Tournament 2024				Tournament Uplands Chess Tournament 2024
		date 2024-07-27	rnd 2	type Standard	result 0.5	date 2024-07-27	rnd 5	type Standard	result 1
		Opponent Labuschagne, C (Christiaan)				Opponent Maluleke, T (Thato)
2	2	Tournament Penryn 2025				Tournament Curro Open Chess Tournament 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-05-10	rnd 1	type Standard	result 1
		Opponent Thomas, R (Rikus)				Opponent Muyambo, S (Shane)
3	1	Tournament Curro Open Chess Tournament 2025				Tournament Curro Open Chess Tournament 2025
		date 2025-05-10	rnd 5	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Mathebula, T (Tshegofatso)				Opponent Mathebula, T (Tshegofatso)

#	Games	Start				End
1	4	Tournament Uplands Chess Tournament 2024				Tournament Uplands Chess Tournament 2024
		date 2024-07-27	rnd 2	type Standard	result 0.5	date 2024-07-27	rnd 5	type Standard	result 1
		Opponent Labuschagne, C (Christiaan)				Opponent Maluleke, T (Thato)
2	2	Tournament Penryn 2025				Tournament Curro Open Chess Tournament 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-05-10	rnd 1	type Standard	result 1
		Opponent Thomas, R (Rikus)				Opponent Muyambo, S (Shane)
3	1	Tournament Curro Open Chess Tournament 2025				Tournament Curro Open Chess Tournament 2025
		date 2025-05-10	rnd 5	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Mathebula, T (Tshegofatso)				Opponent Mathebula, T (Tshegofatso)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Uplands Chess Tournament 2024				Tournament Uplands Chess Tournament 2024
		date 2024-07-27	rnd 3	type Standard	result 1	date 2024-07-27	rnd 5	type Standard	result 1
		Opponent Makuyana, T (Tapiwa)				Opponent Maluleke, T (Thato)
2	2	Tournament Penryn 2025				Tournament Curro Open Chess Tournament 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-05-10	rnd 1	type Standard	result 1
		Opponent Thomas, R (Rikus)				Opponent Muyambo, S (Shane)
3	1	Tournament Curro Open Chess Tournament 2025				Tournament Curro Open Chess Tournament 2025
		date 2025-05-10	rnd 5	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Mathebula, T (Tshegofatso)				Opponent Mathebula, T (Tshegofatso)

#	Games	Start				End
1	3	Tournament Uplands Chess Tournament 2024				Tournament Uplands Chess Tournament 2024
		date 2024-07-27	rnd 3	type Standard	result 1	date 2024-07-27	rnd 5	type Standard	result 1
		Opponent Makuyana, T (Tapiwa)				Opponent Maluleke, T (Thato)
2	2	Tournament Penryn 2025				Tournament Curro Open Chess Tournament 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-05-10	rnd 1	type Standard	result 1
		Opponent Thomas, R (Rikus)				Opponent Muyambo, S (Shane)
3	1	Tournament Curro Open Chess Tournament 2025				Tournament Curro Open Chess Tournament 2025
		date 2025-05-10	rnd 5	type Standard	result 1	date 2025-05-10	rnd 5	type Standard	result 1
		Opponent Mathebula, T (Tshegofatso)				Opponent Mathebula, T (Tshegofatso)

No games found.

#	Games	Start				End

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	Makuyana ,T (Tapiwa)	2	2	425	2	2	425	0	0	0	0	0	0
1	Makuyana ,T (Tapiwa)	2	1166.1	1591.1	2	1158.6	1591.1	0	0	0	0	0	0
2	Belgith ,A (Aws)	1	1	425	1	1	425	0	0	0	0	0	0
2	Belgith ,A (Aws)	1	1161	1586	1	1161.6	1586	0	0	0	0	0	0
3	Mokgwatsane ,L (Lesedi)	1	1	425	1	1	425	0	0	0	0	0	0
3	Mokgwatsane ,L (Lesedi)	1	1203.6	1628.6	1	1207.4	1628.6	0	0	0	0	0	0
4	Lombard ,J (Jessica)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Lombard ,J (Jessica)	1	1163.7	738.7	1	1160	738.7	0	0	0	0	0	0
5	Lavery ,P (Paddy)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Lavery ,P (Paddy)	1	1021.3	596.3	1	1019.9	596.3	0	0	0	0	0	0
6	Kilian ,Q (Quinten)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Kilian ,Q (Quinten)	1	1142.4	717.4	1	1133	717.4	0	0	0	0	0	0
7	Marx ,J (Jandre)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Marx ,J (Jandre)	1	1277.1	852.1	1	1281.2	852.1	0	0	0	0	0	0
8	Abrahams ,A (Aghaster)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Abrahams ,A (Aghaster)	1	1198.3	773.3	1	1198	773.3	0	0	0	0	0	0
9	Thomas ,R (Rikus)	1	1	425	1	1	425	0	0	0	0	0	0
9	Thomas ,R (Rikus)	1	1083.9	1508.9	1	1065	1508.9	0	0	0	0	0	0
10	Mkhatshwa ,P (Proud)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mkhatshwa ,P (Proud)	1	1132.7	707.7	1	1113.2	707.7	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

Van Der Merwe, J (Jano)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms