Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, Z (Zak)

Chess SA id

1090115697

FIDE id

Date of birth

2009-07-25 (U18)

Gender

Male

Region

Dr Kenneth Kaunda (NWP)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1298.4

Item	Main	Standard	Rapid	Blitz
Rating	1377.9	1377.5	1200	1200
Raw rating	1312.9	1296.1	1200	1200
Weighted rating	1377.9	1377.5	1200	1200
Weighted performance	1176.3	1182.5	0	0
Floor	930.6	935.6	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	141.2	144.6	165.8	165.8
Highest rating	1430.6 2025-03-01	1435.6 2025-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1430.6 2025-03-01	1435.6 2025-03-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1381.9 2025-09-30	1382.9 2025-09-30	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1430.6 2025-03-01	1435.6 2025-01-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-4	-5.4	0	0
New rating	1373.9	1372.2	1200	1200
Analysis
Rating	1377.9	1377.5	1200	1200
Raw rating	1312.9	1296.1	1200	1200
Weighted rating	1377.9	1377.5	1200
Weighted performance	1176.3	1182.5	0
K-factor	32	32	36	36
Floor	930.6	935.6	700	700
Max/Min rating change allowed	141.2	144.6	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	1312.9	1296.1	1200	1200
New weighted rating	1373.9	1372.2	1200	1200
New weighted performance	1169.2	1175.3	0	0
Temp new rating	1373.9	1372.2	1200	1200
Temp new rating +/-	-4	-5.4	0	0
Final new rating +/-	-4	-5.4	0	0
New rating	1373.9	1372.2	1200	1200
New K-factor	32	32	36	36
New floor	930.6	935.6	700	700

Item	Main	Standard
	0	0
	24	24
	39	39
	28	28
	37	37
	13	13
History	175	175

Games since
	Main 63	Standard 63		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Dr Kenneth Kaunda (NWP)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	2415		163		25
Male	1949		136		22
U18	381		26		5
U18 Male	327		22		4
Standard
	RSA		Province		Region
Overall	2337		169		31
Male	1889		142		27
U18	385		30		6
U18 Male	332		25		4
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	24	11	45.83	-35.4	1303.1	1267.7
Standard	24	11	45.83	-35.4	1303.1	1267.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	175	88.5	50.57	4.9	1221.3	1226.2
Standard	175	88.5	50.57	4.9	1221.3	1226.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1312.9	1296.1	1200	1200
2025-09-30	1331.8	1317.5	1200	1200
2025-09-01	1418.4	1420.2	1200	1200
2025-08-01	1418.4	1420.2	1200	1200
2025-07-01	1418.4	1420.2	1200	1200
2025-06-01	1418.4	1420.2	1200	1200
2025-05-01	1418.4	1420.2	1200	1200
2025-04-01	1430.6	1435.6	1200	1200
2025-03-01	1430.6	1435.6	1200	1200
2025-02-01	1402.8	1404	1200	1200
2025-01-01	1402.8	1404	1200	1200
2024-12-01	1348.4	1353.6	1200	1200
2024-11-01	1348.4	1353.6	1200	1200
2024-10-01	1334.7	1337	1200	1200
2024-09-01	1325.1	1325.1	1200	1200
2024-08-01	1325.1	1325.1	1200	1200
2024-07-01	1307.5	1303.1	1200	1200
2024-09-01	1351.7	1358.9	1200	1200
2024-05-01	1351.7	1358.9	1200	1200
2024-04-01	1351.7	1358.9	1200	1200
2024-03-01	1326.9	1329	1200	1200
2024-02-01	1294.3	1290.1	1200	1200
2024-01-01	1317.3	1313.9	1200	1200
2023-12-01	1317.3	1313.9	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	Dr KK Regional Trials Potch 2025 (U18)	2025-09-27	2025-09-27	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
2	Dr KK Regional Trials 2025 (U18)	2025-09-06	2025-09-06	Standard	Dr Kenneth Kaunda (NWP)	5	5	1.5	Yes	Analysis
3	Ashton John 2025 (Open)	2025-08-23	2025-08-23	Standard	Dr Kenneth Kaunda (NWP)	5	4	1	Yes	Analysis
4	CURRO Tournament 2025 (U18)	2025-04-12	2025-04-12	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
5	DR KK Volkies 2025 (U16)	2025-02-01	2025-02-01	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Dr KK Regional Trials Potch 2025 (U18)	2025-09-27	2025-09-27	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
2	Dr KK Regional Trials 2025 (U18)	2025-09-06	2025-09-06	Standard	Dr Kenneth Kaunda (NWP)	5	5	1.5	Yes	Analysis
3	Ashton John 2025 (Open)	2025-08-23	2025-08-23	Standard	Dr Kenneth Kaunda (NWP)	5	4	1	Yes	Analysis
4	CURRO Tournament 2025 (U18)	2025-04-12	2025-04-12	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
5	DR KK Volkies 2025 (U16)	2025-02-01	2025-02-01	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
6	Gauteng Inter-Region at UJ 2024 (U16 Candidates)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
7	DR KKD Trails 2 2024 (U16)	2024-10-12	2024-10-12	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
8	DR KKD Curro Agegroup 2024 (U16)	2024-08-31	2024-08-31	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
9	DR KK Gimmies 2024 (B)	2024-07-13	2024-07-13	Standard	Dr Kenneth Kaunda (NWP)	5	4	2.5	Yes	Analysis
10	DR KKD Saamtrek 2024 (U16)	2024-06-08	2024-06-08	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
11	DR KKD Ferdies Mar 2024 (C)	2024-03-02	2024-03-02	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
12	DR KKD Curro Feb 2024 (U16)	2024-02-10	2024-02-10	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
13	2024 Gauteng Inter-Region Chess Championship (U16B)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
14	DR KKD Trials 2023 (U16)	2023-09-02	2023-09-02	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
15	DR KKD Meiringspark 2023 (U16)	2023-08-19	2023-08-19	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
16	Dr Kenneth Kaunda Volkies 2023 (C)	2023-06-10	2023-06-10	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
17	Dr KKD Curro 2023 (U16)	2023-05-13	2023-05-13	Standard	Dr Kenneth Kaunda (NWP)	5	4	2	Yes	Analysis
18	DR Kenneth Kaunda Curro 2023 (C)	2023-04-22	2023-04-22	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
19	Dr. Kenneth Kaunda Saamtrek 2023 (U16)	2023-02-04	2023-02-04	Standard	Dr Kenneth Kaunda (NWP)	5	4	2	Yes	Analysis
20	2022 South African Junior Team Chess Championships (U16 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	7	2.5	Yes	Analysis
21	Dr. KKD SAJCC Trials September 2022 (U12+U14)	2022-09-03	2022-09-03	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
22	Dr. KKD Volkskool 2022 (U14)	2022-08-20	2022-08-20	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
23	La Hoff Primary School 2022 (C)	2022-07-23	2022-07-23	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
24	Ferdinand Postma Potchefstroom 2022 (B)	2022-04-09	2022-04-09	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
25	Volkskool 2022 (U16)	2022-02-05	2022-02-05	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
26	La Hoff Dr. KK Chess 2022 (C)	2022-02-19	2022-02-19	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
27	Volkskool Proewe 2021 (U14)	2021-10-30	2021-10-30	Standard	Dr Kenneth Kaunda (NWP)	5	4	1	Yes	Analysis
28	Saamtrek 2021 (U14)	2021-06-12	2021-06-12	Standard	Dr Kenneth Kaunda (NWP)	5	4	1	Yes	Analysis
29	KHS 2021 (B)	2021-04-10	2021-04-10	Standard	Dr Kenneth Kaunda (NWP)	5	5	1.5	Yes	Analysis
30	Die Wilge 2020 (U12)	2020-03-14	2020-03-14	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
31	Wesvalia 2020 (C)	2020-02-15	2020-02-15	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
32	Gimnasium 2020 (U12)	2020-02-01	2020-02-01	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
33	Stratvaal 2019 (B)	2019-11-02	2019-11-02	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
34	Boys + Girls Tournament 2019 (U12)	2019-08-17	2019-08-17	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
35	President 2019 (C)	2019-07-13	2019-07-13	Standard	Dr Kenneth Kaunda (NWP)	5	4	2.5	Yes	Analysis
36	Doringkruin 2019 (U12 Beginners)	2019-06-08	2019-06-08	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis

#	Games	Start				End
1	9	Tournament DR KKD Trails 2 2024				Tournament DR KK Volkies 2025
		date 2024-10-12	rnd 5	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Krugel, L (Lian)				Opponent Mahlalela, T (Thandolwethu)
2	7	Tournament DR KK Gimmies 2024				Tournament DR KKD Curro Agegroup 2024
		date 2024-07-13	rnd 3	type Standard	result 1	date 2024-08-31	rnd 4	type Standard	result 1
		Opponent Mahlalela, T (Thandolwethu)				Opponent Mochoanchoeng, T (Tshego)
3	6	Tournament Dr Kenneth Kaunda Volkies 2023				Tournament DR KKD Meiringspark 2023
		date 2023-06-10	rnd 3	type Standard	result 1	date 2023-08-19	rnd 3	type Standard	result 1
		Opponent Krauze, Z (Zanique Alexis)				Opponent Hall, M (Michael)

#	Games	Start				End
1	9	Tournament DR KKD Trails 2 2024				Tournament DR KK Volkies 2025
		date 2024-10-12	rnd 5	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Krugel, L (Lian)				Opponent Mahlalela, T (Thandolwethu)
2	7	Tournament DR KK Gimmies 2024				Tournament DR KKD Curro Agegroup 2024
		date 2024-07-13	rnd 3	type Standard	result 1	date 2024-08-31	rnd 4	type Standard	result 1
		Opponent Mahlalela, T (Thandolwethu)				Opponent Mochoanchoeng, T (Tshego)
3	6	Tournament Dr Kenneth Kaunda Volkies 2023				Tournament DR KKD Meiringspark 2023
		date 2023-06-10	rnd 3	type Standard	result 1	date 2023-08-19	rnd 3	type Standard	result 1
		Opponent Krauze, Z (Zanique Alexis)				Opponent Hall, M (Michael)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament DR KKD Curro Feb 2024				Tournament DR KKD Ferdies Mar 2024
		date 2024-02-10	rnd 4	type Standard	result 1	date 2024-03-02	rnd 2	type Standard	result 1
		Opponent Mochoanchoeng, T (Tshego)				Opponent Maboitshega, S (Sipho)
2	4	Tournament Ferdinand Postma Potchefstroom 2022				Tournament La Hoff Primary School 2022
		date 2022-04-09	rnd 4	type Standard	result 1	date 2022-07-23	rnd 2	type Standard	result 1
		Opponent Holding, V (Verushke)				Opponent Fouche, N (Nathan)
3	3	Tournament DR KK Volkies 2025				Tournament DR KK Volkies 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Seraamang, K (Karabo)				Opponent Mahlalela, T (Thandolwethu)

#	Games	Start				End
1	4	Tournament DR KKD Curro Feb 2024				Tournament DR KKD Ferdies Mar 2024
		date 2024-02-10	rnd 4	type Standard	result 1	date 2024-03-02	rnd 2	type Standard	result 1
		Opponent Mochoanchoeng, T (Tshego)				Opponent Maboitshega, S (Sipho)
2	4	Tournament Ferdinand Postma Potchefstroom 2022				Tournament La Hoff Primary School 2022
		date 2022-04-09	rnd 4	type Standard	result 1	date 2022-07-23	rnd 2	type Standard	result 1
		Opponent Holding, V (Verushke)				Opponent Fouche, N (Nathan)
3	3	Tournament DR KK Volkies 2025				Tournament DR KK Volkies 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Seraamang, K (Karabo)				Opponent Mahlalela, T (Thandolwethu)

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	Van Der Merwe ,D (Devan)	6	2	-141.7	6	2	-141.7	0	0	0	0	0	0
1	Van Der Merwe ,D (Devan)	6	1327.7	1186	6	1323.4	1186	0	0	0	0	0	0
2	Krugel ,L (Lian)	5	3.5	170	5	3.5	170	0	0	0	0	0	0
2	Krugel ,L (Lian)	5	1221.6	1391.6	5	1216.9	1391.6	0	0	0	0	0	0
3	Janse Van Rensburg ,N (Nian)	5	1.5	-170	5	1.5	-170	0	0	0	0	0	0
3	Janse Van Rensburg ,N (Nian)	5	1284.6	1114.6	5	1288.7	1114.6	0	0	0	0	0	0
4	Mostert ,CF (Christiaan )	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
4	Mostert ,CF (Christiaan )	3	1160.1	1018.5	3	1167.6	1018.5	0	0	0	0	0	0
5	Mostert ,DE (Dawid Erich)	3	3	425	3	3	425	0	0	0	0	0	0
5	Mostert ,DE (Dawid Erich)	3	1311	1736	3	1303.4	1736	0	0	0	0	0	0
6	Mokwa ,O (Omolemo)	3	0	-425	3	0	-425	0	0	0	0	0	0
6	Mokwa ,O (Omolemo)	3	1465.6	1040.6	3	1466.7	1040.6	0	0	0	0	0	0
7	Hattingh ,JH (Johannes)	3	0	-425	3	0	-425	0	0	0	0	0	0
7	Hattingh ,JH (Johannes)	3	1321	896	3	1325.4	896	0	0	0	0	0	0
8	Labuschagne ,E (Edrich)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
8	Labuschagne ,E (Edrich)	3	1311.3	1453	3	1304.5	1453	0	0	0	0	0	0
9	Unathi ,M (Matlala)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
9	Unathi ,M (Matlala)	3	1134.7	1276.4	3	1120.9	1276.4	0	0	0	0	0	0
10	Fouche ,H (Heinrich)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
10	Fouche ,H (Heinrich)	3	1358.6	1217	3	1352.5	1217	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

Botha, Z (Zak)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms