Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Berg, J (Jay)

Chess SA id

1980149135

FIDE id

Date of birth

1998-07-25 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

CPA

Chess SA registered

Last active game

2025-09-13

Personal details last changed

2025-01-31

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1453.9	1442.4	1226.4	1293
Raw rating	1453.9	1424.7	1226.4	1293
Weighted rating	1273.6	1251.7	1226.4	1271
Weighted performance	1441.4	1442.4	0	0
Floor	984	955.4	726.4	800
K-factor	32	32	36	36
Min/Max rating change allowed	115.5	120.4	159.7	145.2
Highest rating	1484 2025-08-01	1455.4 2025-08-01	1306.3 2023-02-01	1300 2024-03-01
Highest raw rating	1484 2025-08-01	1455.4 2025-08-01	1226.4 2024-03-01	1300 2024-03-01
Highest weighted rating	1280.3 2023-11-01	1251.7 2025-09-30	1226.4 2025-02-01	1265.8 2025-08-01
Highest weighted performance	1484 2025-08-01	1455.4 2019-12-01	1306.3 2023-02-01	1215.2 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	-0.5	0	0
New rating	1453.9	1441.9	1226.4	1293
Analysis
Rating	1453.9	1442.4	1226.4	1293
Raw rating	1453.9	1424.7	1226.4	1293
Weighted rating	1273.6	1251.7	1226.4
Weighted performance	1441.4	1442.4	0
K-factor	32	32	36	36
Floor	984	955.4	726.4	800
Max/Min rating change allowed	115.5	120.4	159.7	145.2
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	1453.9	1424.7	1226.4	1293
New weighted rating	1290.6	1268.1	1226.4	1273.1
New weighted performance	1440.9	1441.9	0	0
Temp new rating	1453.9	1441.9	1226.4	1293
Temp new rating +/-	0	-0.5	0	0
Final new rating +/-	0	-0.5	0	0
New rating	1453.9	1441.9	1226.4	1293
New K-factor	32	32	36	36
New floor	984	955.4	726.4	800

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	35	26	0	9
	14	5	0	9
	23	18	5	0
	0	0	0	0
	0	0	0	0
History	72	49	5	18

Games since
	Main 55	Standard 37		Rapid 0		Blitz 18
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	1611		554		187
Male	1359		455		157
Adult	452		157		71
Adult Male	419		147		66
Standard
	RSA		Province		Region
Overall	1636		610		195
Male	1365		499		163
Adult	417		155		65
Adult Male	389		146		61
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	298		94		53
Male	283		86		47
Adult	199		64		35
Adult Male	192		61		33


	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	35	15.5	44.29	-48.6	1530.4	1481.9
Standard	26	11.5	44.23	-49	1541.4	1492.3
Rapid	0	0	0	0	0	0
Blitz	9	4	44.44	-47.2	1498.8	1451.6
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	72	27.5	38.19	-100.3	1462.5	1362.2
Standard	49	17	34.69	-130.1	1475.5	1345.4
Rapid	5	3	60	85	1364.8	1449.8
Blitz	18	7.5	41.67	-70.8	1454.4	1383.6

Date	Main	Standard	Rapid	Blitz
2025-09-30	1453.9	1424.7	1226.4	1293
2025-09-01	1484	1455.4	1226.4	1293
2025-08-01	1484	1455.4	1226.4	1293
2025-07-01	1280.3	1276.9	1226.4	1263.3
2025-06-01	1208.1	1186.4	1226.4	1263.3
2025-05-01	1208.1	1186.4	1226.4	1263.3
2025-04-01	1208.1	1186.4	1226.4	1263.3
2025-03-01	1208.1	1186.4	1226.4	1263.3
2025-02-01	1208.1	1186.4	1226.4	1263.3
2025-01-01	1208.1	1186.4	1226.4	1263.3
2024-12-01	1208.1	1186.4	1226.4	1263.3
2024-11-01	1208.1	1186.4	1226.4	1263.3
2024-10-01	1208.1	1186.4	1226.4	1263.3
2024-09-01	1208.1	1186.4	1226.4	1263.3
2024-08-01	1208.1	1186.4	1226.4	1263.3
2024-07-01	1208.1	1186.4	1226.4	1263.3
2024-06-01	1208.1	1186.4	1226.4	1263.3
2024-08-01	1208.1	1186.4	1226.4	1263.3
2024-04-01	1208.1	1186.4	1226.4	1263.3
2024-03-01	1201	1186.4	1226.4	1300
2024-02-01	1201	1186.4	1226.4	1300
2024-01-01	1187.3	1163.2	1226.4	1300
2023-12-01	1187.3	1163.2	1226.4	1200
2023-11-01	1187.3	1163.2	1226.4	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	Tshwane Chess Club Clash 2025 (Prestige)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	5	0	Yes	Analysis
2	JMC - Trinity Randpark Ridge 2025 (B)	2025-07-26	2025-07-26	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
3	South African Open 2025 (B)	2025-06-28	2025-07-05	Standard	Johannesburg Metro (GJM)	11	11	4.5	Yes	Analysis
4	South African Open 2025 (Blitz)	2025-07-02	2025-07-02	Blitz	Johannesburg Metro (GJM)	9	9	4	Yes	Analysis
5	JMC Helpmekaar 2025 (B)	2025-06-01	2025-06-01	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Tshwane Chess Club Clash 2025 (Prestige)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	5	0	Yes	Analysis
2	JMC - Trinity Randpark Ridge 2025 (B)	2025-07-26	2025-07-26	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
3	South African Open 2025 (B)	2025-06-28	2025-07-05	Standard	Johannesburg Metro (GJM)	11	11	4.5	Yes	Analysis
4	South African Open 2025 (Blitz)	2025-07-02	2025-07-02	Blitz	Johannesburg Metro (GJM)	9	9	4	Yes	Analysis
5	JMC Helpmekaar 2025 (B)	2025-06-01	2025-06-01	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
6	Wanderers Blitz Tournament 2024	2024-03-23	2024-03-23	Blitz	Johannesburg Metro (GJM)	9	9	3.5	Yes	Analysis
7	JMC Kick Off Tournament 2024 (B)	2024-01-28	2024-01-28	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
8	Africawide Chess Championship 2023 (Open)	2023-11-03	2023-11-05	Standard	Johannesburg Metro (GJM)	7	6	0.5	Yes	Analysis
9	Randburg Winter Swiss 2023	2023-06-13	2023-07-25	Standard	Johannesburg Metro (GJM)	7	7	2	Yes	Analysis
10	JNW Open - Trinityhouse Little Falls 2023 (B)	2023-06-24	2023-06-24	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
11	Mzansi Rapid 2023 (Intermediate)	2023-02-04	2023-02-04	Rapid	Johannesburg Metro (GJM)	6	5	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 1	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Mopedi, K (Karabo)				Opponent Akker, D (Dylan)
2	3	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 9	type Blitz	result 1	date 2025-07-03	rnd 8	type Standard	result 1
		Opponent Tak, A (Abeer)				Opponent Mbasane, D (David)
3	2	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 4	type Blitz	result 1	date 2025-07-02	rnd 5	type Blitz	result 1
		Opponent Sibanda, M (Marlvin)				Opponent Van Der Schyff, M (Mila-Ne)

#	Games	Start				End
1	5	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 1	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Mopedi, K (Karabo)				Opponent Akker, D (Dylan)
2	3	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-01	rnd 6	type Standard	result 0.5	date 2025-07-03	rnd 8	type Standard	result 1
		Opponent Yimani, K (Kshitij)				Opponent Mbasane, D (David)
3	3	Tournament JMC Kick Off Tournament 2024				Tournament JMC Helpmekaar 2025
		date 2024-01-28	rnd 5	type Standard	result 1	date 2025-06-01	rnd 2	type Standard	result 1
		Opponent Shen Yu, F (Frank)				Opponent Van Dyk, TM (Tayla Mila)

#	Games	Start				End
1	2	Tournament Mzansi Rapid 2023				Tournament Mzansi Rapid 2023
		date 2023-02-04	rnd 1	type Rapid	result 1	date 2023-02-04	rnd 2	type Rapid	result 1
		Opponent Ma, M (Matthew)				Opponent Naidoo, D (Dhiya)
2	1	Tournament Mzansi Rapid 2023				Tournament Mzansi Rapid 2023
		date 2023-02-04	rnd 6	type Rapid	result 1	date 2023-02-04	rnd 6	type Rapid	result 1
		Opponent Joseph, J (Jamie)				Opponent Joseph, J (Jamie)

#	Games	Start				End
1	2	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 4	type Blitz	result 1	date 2025-07-02	rnd 5	type Blitz	result 1
		Opponent Sibanda, M (Marlvin)				Opponent Van Der Schyff, M (Mila-Ne)
2	2	Tournament Wanderers Blitz Tournament 2024				Tournament Wanderers Blitz Tournament 2024
		date 2024-03-23	rnd 2	type Blitz	result 1	date 2024-03-23	rnd 3	type Blitz	result 0.5
		Opponent Rademeyer, F (Frederick Paul)				Opponent Ndlovu, B (Bongani)
3	1	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 9	type Blitz	result 1	date 2025-07-02	rnd 9	type Blitz	result 1
		Opponent Tak, A (Abeer)				Opponent Tak, A (Abeer)

#	Games	Start				End
1	2	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 4	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Gupta, A (Akul)				Opponent Akker, D (Dylan)
2	2	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 4	type Blitz	result 1	date 2025-07-02	rnd 5	type Blitz	result 1
		Opponent Sibanda, M (Marlvin)				Opponent Van Der Schyff, M (Mila-Ne)
3	2	Tournament JMC Helpmekaar 2025				Tournament JMC Helpmekaar 2025
		date 2025-06-01	rnd 1	type Standard	result 1	date 2025-06-01	rnd 2	type Standard	result 1
		Opponent Saunders, W (Wayde)				Opponent Van Dyk, TM (Tayla Mila)

#	Games	Start				End
1	3	Tournament JMC Kick Off Tournament 2024				Tournament JMC Helpmekaar 2025
		date 2024-01-28	rnd 5	type Standard	result 1	date 2025-06-01	rnd 2	type Standard	result 1
		Opponent Shen Yu, F (Frank)				Opponent Van Dyk, TM (Tayla Mila)
2	2	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 4	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Gupta, A (Akul)				Opponent Akker, D (Dylan)
3	1	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 1	type Standard	result 1	date 2025-07-26	rnd 1	type Standard	result 1
		Opponent Mopedi, K (Karabo)				Opponent Mopedi, K (Karabo)

#	Games	Start				End
1	2	Tournament Mzansi Rapid 2023				Tournament Mzansi Rapid 2023
		date 2023-02-04	rnd 1	type Rapid	result 1	date 2023-02-04	rnd 2	type Rapid	result 1
		Opponent Ma, M (Matthew)				Opponent Naidoo, D (Dhiya)
2	1	Tournament Mzansi Rapid 2023				Tournament Mzansi Rapid 2023
		date 2023-02-04	rnd 6	type Rapid	result 1	date 2023-02-04	rnd 6	type Rapid	result 1
		Opponent Joseph, J (Jamie)				Opponent Joseph, J (Jamie)

#	Games	Start				End
1	2	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 4	type Blitz	result 1	date 2025-07-02	rnd 5	type Blitz	result 1
		Opponent Sibanda, M (Marlvin)				Opponent Van Der Schyff, M (Mila-Ne)
2	1	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 9	type Blitz	result 1	date 2025-07-02	rnd 9	type Blitz	result 1
		Opponent Tak, A (Abeer)				Opponent Tak, A (Abeer)
3	1	Tournament South African Open 2025				Tournament South African Open 2025
		date 2025-07-02	rnd 7	type Blitz	result 1	date 2025-07-02	rnd 7	type Blitz	result 1
		Opponent Mdaka, V (Vuyanathi)				Opponent Mdaka, V (Vuyanathi)

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	Rademeyer ,F (Frederick Paul)	2	2	425	1	1	425	0	0	0	1	1	425
1	Rademeyer ,F (Frederick Paul)	2	1398.3	1823.3	1	1458.6	1823.3	0	0	0	1	1239.6	1823.3
2	Rishworth ,J (Justin)	2	0	-425	1	0	-425	0	0	0	1	0	-425
2	Rishworth ,J (Justin)	2	1539.1	1114.1	1	1529	1114.1	0	0	0	1	1816.6	1114.1
3	Hlatshwayo ,A (Amukelani)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Hlatshwayo ,A (Amukelani)	1	1584.4	1159.4	1	1588.1	1159.4	0	0	0	0	0	0
4	Byneveldt ,NC (Neil)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Byneveldt ,NC (Neil)	1	1668.3	1243.3	1	1676.4	1243.3	0	0	0	0	0	0
5	Bazhko ,A (Anton)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Bazhko ,A (Anton)	1	1446.1	1021.1	1	1441.9	1021.1	0	0	0	0	0	0
6	Mopedi ,K (Karabo)	1	1	425	1	1	425	0	0	0	0	0	0
6	Mopedi ,K (Karabo)	1	1481.1	1906.1	1	1470.5	1906.1	0	0	0	0	0	0
7	Thorulsley ,K (Kairaav)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Thorulsley ,K (Kairaav)	1	1472.5	1047.5	1	1481.6	1047.5	0	0	0	0	0	0
8	Saunders ,W (Wayde)	1	1	425	1	1	425	0	0	0	0	0	0
8	Saunders ,W (Wayde)	1	1480	1905	1	1491.4	1905	0	0	0	0	0	0
9	Dien ,J (James)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Dien ,J (James)	1	1475	1050	1	1475	1050	0	0	0	0	0	0
10	Bloem ,J (James)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Bloem ,J (James)	1	1278.4	853.4	1	1273.4	853.4	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 Berg, J (Jay)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms