Chess South Africa Ratings Database

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Personal

Van Der Berg, Z (Zack)

Chess SA id

1070149588

FIDE id

Date of birth

2007-08-04 (U20)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1356.8	1303.6	1279.7	1200
Raw rating	1356.8	1303.6	1279.7	1200
Weighted rating	1330.2	1303.6	1256	1200
Weighted performance	1190.7	0	0	0
Floor	856.8	803.6	780	700
K-factor	36	36	36	36
Min/Max rating change allowed	132.6	143.1	148	165.8
Highest rating	1409.9 2023-08-01	1368.6 2023-06-01	1540.6 2023-08-01	1200 2018-10-01
Highest raw rating	1356.8 2025-09-01	1303.6 2024-03-01	1280 2024-03-01	1200 2024-03-01
Highest weighted rating	1325.2 2025-09-01	1303.6 2025-05-05	1280 2024-07-01	1200 2018-10-01
Highest weighted performance	1409.9 2023-08-01	1368.6 2023-06-01	1540.6 2023-08-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1356.8	1303.6	1279.7	1200
Analysis
Rating	1356.8	1303.6	1279.7	1200
Raw rating	1356.8	1303.6	1279.7	1200
Weighted rating	1330.2	1303.6	1256
Weighted performance	1190.7	0	0
K-factor	36	36	36	36
Floor	856.8	803.6	780	700
Max/Min rating change allowed	132.6	143.1	148	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	1356.8	1303.6	1279.7	1200
New weighted rating	1332.6	1303.6	1257.9	1200
New weighted performance	1182.8	0	0	0
Temp new rating	1356.8	1303.6	1279.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1356.8	1303.6	1279.7	1200
New K-factor	36	36	36	36
New floor	856.8	803.6	780	700

Item	Main	Standard	Rapid
	0	0	0
	10	0	10
	5	0	5
	25	20	5
	0	0	0
	0	0	0
History	40	20	20

Games since
	Main 15	Standard 0		Rapid 15		Blitz 0
Gender	Male
Age group	U20
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	10	7	70	170	1317.6	1487.6
Standard	0	0	0	0	0	0
Rapid	10	7	70	170	1317.6	1487.6
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	40	25	62.5	106.2	1267.9	1374.2
Standard	20	12	60	85	1252.8	1337.8
Rapid	20	13	65	127.5	1283.2	1410.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1356.8	1303.6	1279.7	1200
2025-09-30	1356.8	1303.6	1279.7	1200
2025-09-01	1356.8	1303.6	1279.7	1200
2025-08-01	1355.8	1303.6	1279.1	1200
2025-07-01	1355.8	1303.6	1279.1	1200
2025-06-01	1355.8	1303.6	1279.1	1200
2025-05-01	1314.3	1303.6	1244.6	1200
2025-04-01	1314.2	1303.6	1244.6	1200
2025-03-01	1313.8	1303.6	1244.6	1200
2025-02-01	1312	1303.6	1242.3	1200
2025-01-01	1294	1303.6	1211.2	1200
2024-12-01	1294	1303.6	1211.2	1200
2024-11-01	1294	1303.6	1211.2	1200
2024-10-01	1294	1303.6	1211.2	1200
2024-09-01	1294	1303.6	1211.2	1200
2024-08-01	1294	1303.6	1211.2	1200
2024-07-01	1336.5	1303.6	1280	1200
2024-09-01	1336.5	1303.6	1280	1200
2024-05-01	1336.5	1303.6	1280	1200
2024-04-01	1336.5	1303.6	1280	1200
2024-03-01	1336.5	1303.6	1280	1200
2024-02-01	1336.5	1303.6	1280	1200
2024-01-01	1336.5	1303.6	1280	1200
2023-12-01	1336.5	1303.6	1280	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	Bojanala's Clash Of Schools 2025 (Championship Open)	2025-08-02	2025-08-02	Rapid	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
2	Robday Bergsig Sport Festival 2025 (Seniors)	2025-05-03	2025-05-03	Rapid	Bojanala Platina (NBR)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Bojanala's Clash Of Schools 2025 (Championship Open)	2025-08-02	2025-08-02	Rapid	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
2	Robday Bergsig Sport Festival 2025 (Seniors)	2025-05-03	2025-05-03	Rapid	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
3	Bojanala's Clash Of Schools - Secondary 2024 (Championship)	2024-07-27	2024-07-27	Rapid	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
4	Bojanala School League 2023 (U17)	2023-08-19	2023-08-19	Rapid	Bojanala Platina (NBR)	5	5	5	Yes	Analysis
5	Bojanala's Post-Exams 2023 (Rooks)	2023-06-24	2023-06-24	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
6	Olienpark - 2nd One for the Ages 2023 (U18)	2023-05-13	2023-05-13	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
7	Grenswag's Community Battle 2023 (Rooks)	2023-04-22	2023-04-22	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
8	One For The Ages 2023 (U18)	2023-02-18	2023-02-18	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis

#	Games	Start				End
1	10	Tournament Bojanala's Post-Exams 2023				Tournament Bojanala's Clash Of Schools - Secondary 2024
		date 2023-06-24	rnd 2	type Standard	result 1	date 2024-07-27	rnd 1	type Rapid	result 1
		Opponent Mphomane, O (Omolemo)				Opponent Mogale, M (Motlatso)
2	4	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 2	type Rapid	result 0.5	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Pedersen, J (Jj)				Opponent Mhandu, R (Rufaro)
3	4	Tournament Robday Bergsig Sport Festival 2025				Tournament Robday Bergsig Sport Festival 2025
		date 2025-05-03	rnd 2	type Rapid	result 1	date 2025-05-03	rnd 5	type Rapid	result 1
		Opponent Masingi, M (Masangulo Jessica)				Opponent Sera, G (Galaletsang)

#	Games	Start				End
1	4	Tournament Bojanala's Post-Exams 2023				Tournament Bojanala's Post-Exams 2023
		date 2023-06-24	rnd 2	type Standard	result 1	date 2023-06-24	rnd 5	type Standard	result 1
		Opponent Mphomane, O (Omolemo)				Opponent Sera, G (Galaletsang)
2	3	Tournament One For The Ages 2023				Tournament Grenswag's Community Battle 2023
		date 2023-02-18	rnd 5	type Standard	result 1	date 2023-04-22	rnd 2	type Standard	result 1
		Opponent Potgieter, F (Frineze)				Opponent Monamatha, M (Moeketsi)
3	2	Tournament Olienpark - 2nd One for the Ages 2023				Tournament Olienpark - 2nd One for the Ages 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-05-13	rnd 4	type Standard	result 1
		Opponent Morake, R (Reaoleboga)				Opponent Van Der Westhuizen, J (John Edmund)

#	Games	Start				End
1	6	Tournament Bojanala School League 2023				Tournament Bojanala's Clash Of Schools - Secondary 2024
		date 2023-08-19	rnd 1	type Rapid	result 1	date 2024-07-27	rnd 1	type Rapid	result 1
		Opponent Kazele, T (Thebe)				Opponent Mogale, M (Motlatso)
2	4	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 2	type Rapid	result 0.5	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Pedersen, J (Jj)				Opponent Mhandu, R (Rufaro)
3	4	Tournament Robday Bergsig Sport Festival 2025				Tournament Robday Bergsig Sport Festival 2025
		date 2025-05-03	rnd 2	type Rapid	result 1	date 2025-05-03	rnd 5	type Rapid	result 1
		Opponent Masingi, M (Masangulo Jessica)				Opponent Sera, G (Galaletsang)

No games found.

#	Games	Start				End

#	Games	Start				End
1	10	Tournament Bojanala's Post-Exams 2023				Tournament Bojanala's Clash Of Schools - Secondary 2024
		date 2023-06-24	rnd 2	type Standard	result 1	date 2024-07-27	rnd 1	type Rapid	result 1
		Opponent Mphomane, O (Omolemo)				Opponent Mogale, M (Motlatso)
2	4	Tournament Robday Bergsig Sport Festival 2025				Tournament Robday Bergsig Sport Festival 2025
		date 2025-05-03	rnd 2	type Rapid	result 1	date 2025-05-03	rnd 5	type Rapid	result 1
		Opponent Masingi, M (Masangulo Jessica)				Opponent Sera, G (Galaletsang)
3	3	Tournament One For The Ages 2023				Tournament Grenswag's Community Battle 2023
		date 2023-02-18	rnd 5	type Standard	result 1	date 2023-04-22	rnd 2	type Standard	result 1
		Opponent Potgieter, F (Frineze)				Opponent Monamatha, M (Moeketsi)

#	Games	Start				End
1	4	Tournament Bojanala's Post-Exams 2023				Tournament Bojanala's Post-Exams 2023
		date 2023-06-24	rnd 2	type Standard	result 1	date 2023-06-24	rnd 5	type Standard	result 1
		Opponent Mphomane, O (Omolemo)				Opponent Sera, G (Galaletsang)
2	3	Tournament One For The Ages 2023				Tournament Grenswag's Community Battle 2023
		date 2023-02-18	rnd 5	type Standard	result 1	date 2023-04-22	rnd 2	type Standard	result 1
		Opponent Potgieter, F (Frineze)				Opponent Monamatha, M (Moeketsi)
3	2	Tournament Olienpark - 2nd One for the Ages 2023				Tournament Olienpark - 2nd One for the Ages 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-05-13	rnd 4	type Standard	result 1
		Opponent Morake, R (Reaoleboga)				Opponent Van Der Westhuizen, J (John Edmund)

#	Games	Start				End
1	6	Tournament Bojanala School League 2023				Tournament Bojanala's Clash Of Schools - Secondary 2024
		date 2023-08-19	rnd 1	type Rapid	result 1	date 2024-07-27	rnd 1	type Rapid	result 1
		Opponent Kazele, T (Thebe)				Opponent Mogale, M (Motlatso)
2	4	Tournament Robday Bergsig Sport Festival 2025				Tournament Robday Bergsig Sport Festival 2025
		date 2025-05-03	rnd 2	type Rapid	result 1	date 2025-05-03	rnd 5	type Rapid	result 1
		Opponent Masingi, M (Masangulo Jessica)				Opponent Sera, G (Galaletsang)
3	1	Tournament Bojanala's Clash Of Schools 2025				Tournament Bojanala's Clash Of Schools 2025
		date 2025-08-02	rnd 5	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Mhandu, R (Rufaro)				Opponent Mhandu, R (Rufaro)

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	Dikane ,O (Oageng)	2	1	0	2	1	0	0	0	0	0	0	0
1	Dikane ,O (Oageng)	2	1416.7	1416.7	2	1414.3	1416.7	0	0	0	0	0	0
2	Sera ,G (Galaletsang)	2	2	425	1	1	425	1	1	425	0	0	0
2	Sera ,G (Galaletsang)	2	1459.9	1884.9	1	1350.3	1884.9	1	885.6	1884.9	0	0	0
3	Pedersen ,J (Jj)	2	1.5	212.5	0	0	0	2	1.5	212.5	0	0	0
3	Pedersen ,J (Jj)	2	1400.6	1613.1	0	0	0	2	1173.5	1613.1	0	0	0
4	Molefe ,O (Ofentse)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Molefe ,O (Ofentse)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Mokoena ,T (Thoriso)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mokoena ,T (Thoriso)	1	1355.3	1780.3	1	1382	1780.3	0	0	0	0	0	0
6	Van Der Westhuizen ,J (John Edmund)	1	1	425	1	1	425	0	0	0	0	0	0
6	Van Der Westhuizen ,J (John Edmund)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Changara ,A (Alvern Takura)	1	1	425	1	1	425	0	0	0	0	0	0
7	Changara ,A (Alvern Takura)	1	1382.1	1807.1	1	1379.4	1807.1	0	0	0	0	0	0
8	Mphephu ,NP (Ntanganedzeni P)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Mphephu ,NP (Ntanganedzeni P)	1	1239.9	814.9	1	1254	814.9	0	0	0	0	0	0
9	Monamatha ,M (Moeketsi)	1	1	425	1	1	425	0	0	0	0	0	0
9	Monamatha ,M (Moeketsi)	1	1236.8	1661.8	1	1243.2	1661.8	0	0	0	0	0	0
10	Lekgabe ,O (Olaotse Ipeleng)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Lekgabe ,O (Olaotse Ipeleng)	1	1166.1	741.1	1	1164.4	741.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Van Der Berg, Z (Zack)

Ratings

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Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms