Chess South Africa Ratings Database

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Personal

Du Preez, Z (Zolani)

Chess SA id

1130143658

FIDE id

Date of birth

2013-04-10 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-31

Personal details last changed

1900-01-01

Junior GPX Games

26.3

Junior GPX Points

1062.6

Item	Main	Standard	Rapid	Blitz
Rating	1268.4	1220.8	1280.5	1200
Raw rating	1268.4	1220.8	1280.5	1200
Weighted rating	1222.1	1172.8	1250.5	1200
Weighted performance	1194.5	1116.1	1190.1	0
Floor	768.4	720.8	788.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	150.4	161	147.9	165.8
Highest rating	1268.4 2025-07-01	1220.8 2025-07-01	1310.1 2022-10-01	1200 2018-10-01
Highest raw rating	1268.4 2025-07-01	1220.8 2025-07-01	1288.7 2025-01-01	1200 2024-02-01
Highest weighted rating	1268.4 2018-10-01	1220.8 2018-10-01	1288.7 2023-09-01	1200 2018-10-01
Highest weighted performance	1234.2 2025-07-01	1208.3 2022-01-01	1310.1 2022-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1268.4	1220.8	1280.5	1200
Analysis
Rating	1268.4	1220.8	1280.5	1200
Raw rating	1268.4	1220.8	1280.5	1200
Weighted rating	1222.1	1172.8	1250.5
Weighted performance	1194.5	1116.1	1190.1
K-factor	36	36	36	36
Floor	768.4	720.8	788.7	700
Max/Min rating change allowed	150.4	161	147.9	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	1268.4	1220.8	1280.5	1200
New weighted rating	1227.2	1177.4	1254.5	1200
New weighted performance	1194	1115.6	1189.7	0
Temp new rating	1268.4	1220.8	1280.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1268.4	1220.8	1280.5	1200
New K-factor	36	36	36	36
New floor	768.4	720.8	788.7	700

Item	Main	Standard	Rapid
	0	0	0
	31	12	19
	73	24	49
	70	22	48
	32	17	15
	0	0	0
History	206	75	131

Games since
	Main 115	Standard 36		Rapid 79		Blitz 0
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3461		1134		432
Male	2688		820		335
U14	651		216		88
U14 Male	475		141		61
Standard
	RSA		Province		Region
Overall	3763		1071		414
Male	2852		733		300
U14	732		206		85
U14 Male	517		123		53
Rapid
	RSA		Province		Region
Overall	1152		594		243
Male	933		467		208
U14	254		137		55
U14 Male	184		97		42
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	31	15.5	50	0	1267.5	1267.5
Standard	12	6.5	54.17	35.4	1259.3	1294.7
Rapid	19	9	47.37	-22.4	1272.7	1250.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	206	92.5	44.9	-43.3	1240.7	1197.4
Standard	75	30	40	-85	1258.2	1173.2
Rapid	131	62.5	47.71	-19.5	1230.6	1211.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1268.4	1220.8	1280.5	1200
2025-09-01	1268.4	1220.8	1280.5	1200
2025-08-01	1268.4	1220.8	1280.5	1200
2025-07-01	1268.4	1220.8	1280.5	1200
2025-06-01	1227.1	1151.7	1280.5	1200
2025-05-01	1227.1	1151.4	1280.5	1200
2025-04-01	1227.1	1151.1	1280.5	1200
2025-03-01	1213.4	1150.7	1264.7	1200
2025-02-01	1222.6	1152.8	1262.2	1200
2025-01-01	1230.6	1152.8	1288.7	1200
2024-12-01	1192.4	1152.8	1217.1	1200
2024-11-01	1192.4	1152.8	1217.1	1200
2024-10-01	1186.9	1152.8	1206.7	1200
2024-09-01	1186.9	1152.8	1206.7	1200
2024-08-01	1186.9	1152.8	1206.7	1200
2024-07-01	1147.8	1138.8	1179	1200
2024-06-01	1161	1158.4	1179	1200
2024-08-01	1178.8	1158.4	1192.7	1200
2024-04-01	1158.3	1158.4	1152.4	1200
2024-03-01	1167.9	1177.6	1152.4	1200
2024-02-01	1187.6	1142.4	1216.8	1200
2024-01-01	1187.6	1142.4	1216.8	1200
2023-12-01	1187.6	1142.4	1216.8	1200
2023-11-01	1176.3	1142.4	1193.8	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 Town Chess Junior League 2025 (U12)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
2	Steinitz Festival 2025 (U14)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	7	4	Yes	Analysis
3	Cape of Good Hope Open 2025 (U12)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
4	2025 District Central Schools Chess Individual Trials (U13 Open)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
5	2025 Kraaifontein Open Chess Championships (Rapid U14)	2025-01-04	2025-01-04	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Junior League 2025 (U12)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
2	Steinitz Festival 2025 (U14)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	7	4	Yes	Analysis
3	Cape of Good Hope Open 2025 (U12)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
4	2025 District Central Schools Chess Individual Trials (U13 Open)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
5	2025 Kraaifontein Open Chess Championships (Rapid U14)	2025-01-04	2025-01-04	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
6	Rylib Summer Slam 2024 (U12)	2024-12-03	2024-12-03	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
7	UCT Open Chess Championship 2024 (U12)	2024-10-12	2024-10-13	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
8	Spring Slam 2024 (U12)	2024-10-05	2024-10-05	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
9	CT Metro Central District Top Schools 2024 (U11 Mixed)	2024-07-27	2024-07-27	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
10	South African Open Chess Championship 2024 (C)	2024-07-04	2024-07-07	Standard	Ethekwini (KED)	7	7	2.5	Yes	Analysis
11	Cape Town Chess Federation Closed Chess Championships 2024 (U12)	2024-06-15	2024-06-16	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
12	Cape Town Junior League Finals 2024 (U13 Open B)	2024-05-18	2024-05-18	Rapid	Cape Town (WCT)	6	5	1	Yes	Analysis
13	Steinitz Chess Festival 2024 (U12)	2024-05-11	2024-05-11	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
14	Cape Town Junior League - Qualifier 2 2024 (U13)	2024-04-20	2024-04-20	Rapid	Cape Town (WCT)	6	5	2	Yes	Analysis
15	Cape Town Junior League Qualifier 2024 (U13 Open)	2024-04-06	2024-04-06	Rapid	Cape Town (WCT)	6	5	3	Yes	Analysis
16	Cape Town Metro Schools Chess Closed Individuals 2024 (U11 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
17	CT Metro Central District Schools Chess Individuals Trials 2024 (U11 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
18	Cape of Good Hope Open Chess Tournament 2024 (U12)	2024-02-17	2024-02-17	Rapid	Cape Town (WCT)	6	6	1	Yes	Analysis
19	Gugulethu Chess College Bashment Cup 2023 (U11)	2023-12-06	2023-12-06	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
20	Bonnievale Open Rapid 2023 (U12)	2023-10-21	2023-10-21	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
21	Western Cape Closed Championship 2023 (U12)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
22	Cape Town Junior Chess League Finals 2023 (U12A)	2023-09-16	2023-09-16	Rapid	Cape Town (WCT)	7	7	2.5	Yes	Analysis
23	Western Cape Top Schools 2023 (U11 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	5	2	Yes	Analysis
24	Curro Durbanville Chess Open Rapid 2023 (U12)	2023-07-15	2023-07-15	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
25	Cape Town Junior Chess League - Round 1 2023 (U12A)	2023-07-22	2023-07-22	Rapid	Cape Town (WCT)	7	6	2.5	Yes	Analysis
26	WP Closed 2023 (U12)	2023-06-16	2023-06-17	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
27	Cape Town Junior League 2nd Qualifier 2023 (U12)	2023-06-03	2023-06-03	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
28	Cape Town Open 2023 (U12)	2023-03-25	2023-03-25	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
29	Cape Town Metro Schools Chess Closed Individuals 2023 (U11 Boys)	2023-03-03	2023-03-04	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
30	Central District School Trials 2023 (U11 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	5	2	Yes	Analysis
31	2022 Bashment Cup (U9)	2022-12-09	2022-12-09	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
32	Metro Rapid 2022 (U9 Boys)	2022-10-22	2022-10-22	Rapid	Cape Town (WCT)	5	4	3	Yes	Analysis
33	Western Cape Top Schools 2022 (U9 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
34	South African Open 2022 (U12)	2022-07-11	2022-07-13	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
35	Curro Durbanville Chess Open Rapid 2022 (U8+U10)	2022-07-02	2022-07-02	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
36	2022 Cape Of Good Hope Open (U10)	2022-01-29	2022-01-30	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis

#	Games	Start				End
1	7	Tournament Steinitz Festival 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-03-15	rnd 3	type Rapid	result 1	date 2025-05-10	rnd 2	type Standard	result 1
		Opponent Bester, L (Lerato)				Opponent Tesselaar, M (Mc)
2	5	Tournament Metro Rapid 2022				Tournament 2022 Bashment Cup
		date 2022-10-22	rnd 4	type Rapid	result 1	date 2022-12-09	rnd 3	type Rapid	result 1
		Opponent Poloti, L (Luphawu)				Opponent Nyengula, A (Ayole)
3	4	Tournament UCT Open Chess Championship 2024				Tournament Rylib Summer Slam 2024
		date 2024-10-13	rnd 6	type Rapid	result 1	date 2024-12-03	rnd 3	type Rapid	result 1
		Opponent Gevenga, I (Inonge)				Opponent Gevenga, I (Inonge)

#	Games	Start				End
1	3	Tournament 2025 District Central Schools Chess Individual Trials				Tournament Cape Town Chess Junior League 2025
		date 2025-02-01	rnd 6	type Standard	result 1	date 2025-05-10	rnd 2	type Standard	result 1
		Opponent Van Eden, Y (Yusuf)				Opponent Tesselaar, M (Mc)
2	2	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-31	rnd 4	type Standard	result 1	date 2025-05-31	rnd 5	type Standard	result 1
		Opponent Burnett, T (Tomas)				Opponent Sauerman, M (Matthew)
3	2	Tournament 2025 District Central Schools Chess Individual Trials				Tournament 2025 District Central Schools Chess Individual Trials
		date 2025-01-31	rnd 1	type Standard	result 1	date 2025-01-31	rnd 2	type Standard	result 0.5
		Opponent Avuya, Z (Zamela)				Opponent Louis, C (Carl)

#	Games	Start				End
1	5	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-15	rnd 3	type Rapid	result 1	date 2025-03-15	rnd 7	type Rapid	result 0.5
		Opponent Bester, L (Lerato)				Opponent Michaelides, A (Alexander)
2	5	Tournament Metro Rapid 2022				Tournament 2022 Bashment Cup
		date 2022-10-22	rnd 4	type Rapid	result 1	date 2022-12-09	rnd 3	type Rapid	result 1
		Opponent Poloti, L (Luphawu)				Opponent Nyengula, A (Ayole)
3	4	Tournament UCT Open Chess Championship 2024				Tournament Rylib Summer Slam 2024
		date 2024-10-13	rnd 6	type Rapid	result 1	date 2024-12-03	rnd 3	type Rapid	result 1
		Opponent Gevenga, I (Inonge)				Opponent Gevenga, I (Inonge)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Metro Rapid 2022				Tournament 2022 Bashment Cup
		date 2022-10-22	rnd 4	type Rapid	result 1	date 2022-12-09	rnd 3	type Rapid	result 1
		Opponent Poloti, L (Luphawu)				Opponent Nyengula, A (Ayole)
2	4	Tournament UCT Open Chess Championship 2024				Tournament Rylib Summer Slam 2024
		date 2024-10-13	rnd 6	type Rapid	result 1	date 2024-12-03	rnd 3	type Rapid	result 1
		Opponent Gevenga, I (Inonge)				Opponent Gevenga, I (Inonge)
3	4	Tournament Bonnievale Open Rapid 2023				Tournament Gugulethu Chess College Bashment Cup 2023
		date 2023-10-21	rnd 6	type Rapid	result 1	date 2023-12-06	rnd 3	type Rapid	result 1
		Opponent Krynauw, E (Eben)				Opponent Nyengula, A (Ayole)

#	Games	Start				End
1	3	Tournament 2025 District Central Schools Chess Individual Trials				Tournament Cape Town Chess Junior League 2025
		date 2025-02-01	rnd 6	type Standard	result 1	date 2025-05-10	rnd 2	type Standard	result 1
		Opponent Van Eden, Y (Yusuf)				Opponent Tesselaar, M (Mc)
2	2	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-31	rnd 4	type Standard	result 1	date 2025-05-31	rnd 5	type Standard	result 1
		Opponent Burnett, T (Tomas)				Opponent Sauerman, M (Matthew)
3	2	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Cape Town Metro Schools Chess Closed Individuals 2024
		date 2024-03-02	rnd 3	type Standard	result 1	date 2024-03-03	rnd 4	type Standard	result 1
		Opponent Makumbe, P (Passion)				Opponent Mu�azzam, M (Muhammad Zaid Ghafi)

#	Games	Start				End
1	5	Tournament Metro Rapid 2022				Tournament 2022 Bashment Cup
		date 2022-10-22	rnd 4	type Rapid	result 1	date 2022-12-09	rnd 3	type Rapid	result 1
		Opponent Poloti, L (Luphawu)				Opponent Nyengula, A (Ayole)
2	4	Tournament UCT Open Chess Championship 2024				Tournament Rylib Summer Slam 2024
		date 2024-10-13	rnd 6	type Rapid	result 1	date 2024-12-03	rnd 3	type Rapid	result 1
		Opponent Gevenga, I (Inonge)				Opponent Gevenga, I (Inonge)
3	4	Tournament Bonnievale Open Rapid 2023				Tournament Gugulethu Chess College Bashment Cup 2023
		date 2023-10-21	rnd 6	type Rapid	result 1	date 2023-12-06	rnd 3	type Rapid	result 1
		Opponent Krynauw, E (Eben)				Opponent Nyengula, A (Ayole)

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	Mngqibisa ,P (Phila)	8	5	106.2	3	1	-141.7	5	4	255	0	0	0
1	Mngqibisa ,P (Phila)	8	1187.2	1293.4	3	1184.9	1045.5	5	1224.9	1442.2	0	0	0
2	Manentsa ,K (Kungawo)	6	3	0	0	0	0	6	3	0	0	0	0
2	Manentsa ,K (Kungawo)	6	1143.5	1143.5	0	0	0	6	1191.3	1143.5	0	0	0
3	Nyengula ,A (Ayole)	6	4	141.7	0	0	0	6	4	141.7	0	0	0
3	Nyengula ,A (Ayole)	6	1114	1255.7	0	0	0	6	1179.3	1255.7	0	0	0
4	Mputing ,T (Thando)	5	2	-85	1	1	425	4	1	-212.5	0	0	0
4	Mputing ,T (Thando)	5	1234.9	1149.9	1	1200	1659.9	4	1277.6	1022.4	0	0	0
5	Nogaga ,O (Owethu)	5	2.5	0	0	0	0	5	2.5	0	0	0	0
5	Nogaga ,O (Owethu)	5	1272.4	1272.4	0	0	0	5	1334.9	1272.4	0	0	0
6	Grove ,T (Tyler)	5	1	-255	0	0	0	5	1	-255	0	0	0
6	Grove ,T (Tyler)	5	1288.4	1033.4	0	0	0	5	1327.6	1033.4	0	0	0
7	Mabaso ,A (Ahlumile)	3	0	-425	1	0	-425	2	0	-425	0	0	0
7	Mabaso ,A (Ahlumile)	3	1204.2	779.2	1	1146	779.2	2	1292.8	779.2	0	0	0
8	Mrwetyana ,L (Lethu)	3	3	425	1	1	425	2	2	425	0	0	0
8	Mrwetyana ,L (Lethu)	3	1153.9	1578.9	1	1149.2	1578.9	2	1174.6	1578.9	0	0	0
9	Van Wyk ,D (Dimitri)	3	0	-425	0	0	0	3	0	-425	0	0	0
9	Van Wyk ,D (Dimitri)	3	1331.6	906.6	0	0	0	3	1311.2	906.6	0	0	0
10	Kotliar ,B (Beatrisa)	3	3	425	0	0	0	3	3	425	0	0	0
10	Kotliar ,B (Beatrisa)	3	1259.9	1684.9	0	0	0	3	1288.9	1684.9	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Du Preez, Z (Zolani)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms