Chess South Africa Ratings Database

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Personal

Grobler, Z (Zandre)

Chess SA id

106065039

FIDE id

Grobler

Date of birth

2006-07-16 (U20)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-10-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1563.4	1541.8	1442.3	1363.1
Raw rating	1562.8	1541.2	1442.3	1363.1
Weighted rating	1563.4	1541.8	1442.3	1363.1
Weighted performance	1282.2	1259.6	0	0
Floor	1081.4	1061.4	942.3	917.9
K-factor	32	32	32	32
Min/Max rating change allowed	98.9	102	117.4	131.4
Highest rating	1602.7 2024-02-01	1576.2 2024-02-01	1442.3 2024-02-01	1417.9 2018-11-01
Highest raw rating	1581.4 2024-03-01	1561.4 2024-03-01	1442.3 2024-02-01	1417.9 2018-02-01
Highest weighted rating	1562.8 2025-08-01	1541.2 2025-08-01	1442.3 2025-07-01	1417.9 2018-11-01
Highest weighted performance	1602.7 2024-02-01	1576.2 2024-02-01	1290.9 2020-02-01	1200 2018-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.1	0.1	0	0
New rating	1563.5	1541.9	1442.3	1363.1
Analysis
Rating	1563.4	1541.8	1442.3	1363.1
Raw rating	1562.8	1541.2	1442.3	1363.1
Weighted rating	1563.4	1541.8	1442.3
Weighted performance	1282.2	1259.6	0
K-factor	32	32	32	32
Floor	1081.4	1061.4	942.3	917.9
Max/Min rating change allowed	98.9	102	117.4	131.4
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	1562.8	1541.2	1442.3	1363.1
New weighted rating	1563.5	1541.9	1442.3	1363.1
New weighted performance	1281.7	1259	0	0
Temp new rating	1563.5	1541.9	1442.3	1363.1
Temp new rating +/-	0.1	0.1	0	0
Final new rating +/-	0.1	0.1	0	0
New rating	1563.5	1541.9	1442.3	1363.1
New K-factor	32	32	32	32
New floor	1081.4	1061.4	942.3	917.9

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	11	11	0	0
	40	35	5	0
	26	21	5	0
	0	0	0	0
History	359	293	38	28

Games since
	Main 20	Standard 20		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	165	113	68.48	157.1	1244.1	1401.2
Standard	138	92.5	67.03	144.7	1251.8	1396.5
Rapid	20	15.5	77.5	233.8	1207.1	1440.9
Blitz	7	5	71.43	182.1	1199	1381.1

Date	Main	Standard	Rapid	Blitz
2025-09-30	1562.8	1541.2	1442.3	1363.1
2025-09-01	1562.8	1541.2	1442.3	1363.1
2025-08-01	1562.8	1541.2	1442.3	1363.1
2025-07-01	1562.2	1540.5	1442.3	1363.1
2025-06-01	1561.3	1539.6	1442.3	1363.1
2025-05-01	1560.1	1538.4	1442.3	1363.1
2025-04-01	1558.7	1536.9	1442.3	1363.1
2025-03-01	1557	1535.2	1442.3	1363.1
2025-02-01	1554.5	1532.4	1442.3	1363.1
2025-01-01	1543.2	1517.6	1442.3	1363.1
2024-12-01	1543.2	1517.6	1442.3	1363.1
2024-11-01	1581.4	1561.4	1442.3	1363.1
2024-10-01	1581.4	1561.4	1442.3	1363.1
2024-09-01	1581.4	1561.4	1442.3	1363.1
2024-08-01	1581.4	1561.4	1442.3	1363.1
2024-07-01	1581.4	1561.4	1442.3	1363.1
2024-06-01	1581.4	1561.4	1442.3	1363.1
2024-08-01	1581.4	1561.4	1442.3	1363.1
2024-04-01	1581.4	1561.4	1442.3	1363.1
2024-03-01	1581.4	1561.4	1442.3	1363.1
2024-02-01	1525	1503.5	1442.3	1363.1
2024-01-01	1525	1503.5	1442.3	1363.1
2023-12-01	1525	1503.5	1442.3	1363.1
2023-11-01	1538.8	1518.2	1442.3	1363.1

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Paarl Boys' High Chess Festival 2024 (Elite)	2024-10-04	2024-10-05	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
2	Grey College Team Championship 2024 (A)	2024-02-23	2024-02-24	Standard	Mangaung (FMB)	5	5	5	Yes	Analysis
3	2023 Western Cape Rural Cup (U18)	2023-12-09	2023-12-10	Standard	Cape Winelands (WCW)	5	3	1	Yes	Analysis
4	Paarl Boys High Chess Festival 2023 (Elite Division)	2023-10-13	2023-10-14	Standard	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis
5	Western Cape Top Schools 2023 (U18 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	6	Yes	Analysis
6	CW Top Schools 2023 (U18 Mix)	2023-08-26	2023-08-26	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
7	Western Cape HS Individuals 2023 (U17 Boys)	2023-04-01	2023-04-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
8	Cape Winelands Schools Prestige 2023 (U17 Boys)	2023-03-11	2023-03-11	Standard	Cape Winelands (WCW)	5	4	2.5	Yes	Analysis
9	Cape Winelands Schools Chess - Trials 1 2023 (U17 Boys)	2023-02-25	2023-02-25	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
10	Grey College Team Championship 2023 (A)	2023-02-03	2023-02-04	Standard	Mangaung (FMB)	5	5	4.5	Yes	Analysis
11	Western Cape Top Schools 2022 (U18 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
12	Cape Winelands Schools Top Schools 2022 (U18 Mix)	2022-08-27	2022-08-27	Standard	Cape Winelands (WCW)	5	5	4.5	Yes	Analysis
13	Western Cape Schools Chess 2022 (U18 Boys)	2022-05-07	2022-05-08	Standard	Eden (WEG)	6	6	3	Yes	Analysis
14	Cape Winelands Schools 2022 (U18 Boys)	2022-03-05	2022-03-05	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
15	Central Winelands Schools Individual Trials 2022 (U18 Boys)	2022-02-19	2022-02-19	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
16	Cape Winelands Schools Trials 1 2020 (U15 Boys)	2020-02-15	2020-02-15	Rapid	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis
17	Stellenberg Youth Chess Championship 2019 (A)	2019-04-30	2019-05-01	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
18	Crossroads Open Chess Championship 2019 (C)	2019-04-27	2019-04-28	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
19	South African Junior Blitz 2018 (U14)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	7	5	Yes	Analysis
20	South African Junior Team Championships 2018 (U14A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	6	3.5	Yes	Analysis
21	Western Cape Kings & Queens 2018 (Boys)	2018-10-20	2018-10-20	Rapid	Cape Winelands (WCW)	5	4	3	Yes	Analysis
22	Stellenberg Youth Chess Champs 2018 (A)	2018-06-22	2018-06-23	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
23	Western Cape Schools Individuals 2018 (U13 Boys)	2018-05-19	2018-05-20	Standard	Overberg (WOS)	6	6	4	Yes	Analysis
24	Crossroads Open Chess Championship 2018 (B)	2018-04-27	2018-04-29	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
25	2018 South African Junior Closed Chess Championships (U12 Open)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	5	Yes	Analysis
26	2018 WP Schools Closed Trials (U13 Boys)	2018-03-09	2018-03-10	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
27	District North Schools Chess Open Trials 2018 (U13)	2018-02-09	2018-02-10	Standard	Cape Town (WCT)	6	5	4.5	Yes	Analysis
28	PHBS Rememberance Tournament 2018 (Youth)	2018-02-23	2018-02-24	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
29	South African Junior Team Championships 2017 (U12A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis

#	Games	Start				End
1	16	Tournament Western Cape HS Individuals 2023				Tournament Paarl Boys High Chess Festival 2023
		date 2023-04-02	rnd 4	type Standard	result 0.5	date 2023-10-13	rnd 2	type Standard	result 1
		Opponent Jonas, SG (Sue-Win)				Opponent Valla, D (Dante)
2	12	Tournament South African Junior Blitz 2018				Tournament Stellenberg Youth Chess Championship 2019
		date 2018-12-19	rnd 4	type Blitz	result 1	date 2019-04-30	rnd 2	type Standard	result 0.5
		Opponent Williams, V (Vogan)				Opponent Thompson, T (Themba)
3	9	Tournament Western Cape Top Schools 2022				Tournament Cape Winelands Schools Chess - Trials 1 2023
		date 2022-09-17	rnd 5	type Standard	result 0.5	date 2023-02-25	rnd 3	type Standard	result 1
		Opponent Hansen, J (Javen)				Opponent Saoud, J (Jassem)

#	Games	Start				End
1	11	Tournament Western Cape HS Individuals 2023				Tournament Paarl Boys High Chess Festival 2023
		date 2023-04-02	rnd 4	type Standard	result 0.5	date 2023-10-13	rnd 2	type Standard	result 1
		Opponent Jonas, SG (Sue-Win)				Opponent Valla, D (Dante)
2	9	Tournament Western Cape Top Schools 2022				Tournament Cape Winelands Schools Chess - Trials 1 2023
		date 2022-09-17	rnd 5	type Standard	result 0.5	date 2023-02-25	rnd 3	type Standard	result 1
		Opponent Hansen, J (Javen)				Opponent Saoud, J (Jassem)
3	9	Tournament District North Schools Chess Open Trials 2018				Tournament PHBS Rememberance Tournament 2018
		date 2018-02-09	rnd 2	type Standard	result 1	date 2018-02-24	rnd 4	type Standard	result 1
		Opponent Mateus, N (Nelson)				Opponent Kedama, S (Sandiso)

#	Games	Start				End
1	5	Tournament CW Top Schools 2023				Tournament CW Top Schools 2023
		date 2023-08-26	rnd 1	type Rapid	result 1	date 2023-08-26	rnd 5	type Rapid	result 1
		Opponent Liebenberg, D (Dewald)				Opponent Davids, J (Jowen)
2	5	Tournament Western Cape Kings & Queens 2018				Tournament Cape Winelands Schools Trials 1 2020
		date 2018-10-20	rnd 5	type Rapid	result 1	date 2020-02-15	rnd 4	type Rapid	result 0.5
		Opponent Booysen, J (Jenilo)				Opponent Palmer, C (Cheslin)
3	4	Tournament Cape Winelands Schools Trials 1 2020				Tournament Central Winelands Schools Individual Trials 2022
		date 2020-02-15	rnd 6	type Rapid	result 1	date 2022-02-19	rnd 3	type Rapid	result 1
		Opponent Van Der Walt, A (Alexander)				Opponent Sithole, C (Clyde)

#	Games	Start				End
1	4	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 4	type Blitz	result 1	date 2018-12-19	rnd 7	type Blitz	result 1
		Opponent Williams, V (Vogan)				Opponent De Swardt, E (Eduan)
2	1	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 2	type Blitz	result 1	date 2018-12-19	rnd 2	type Blitz	result 1
		Opponent Richards, E (Ezekiel)				Opponent Richards, E (Ezekiel)

#	Games	Start				End
1	15	Tournament Western Cape HS Individuals 2023				Tournament Paarl Boys High Chess Festival 2023
		date 2023-04-02	rnd 5	type Standard	result 1	date 2023-10-13	rnd 2	type Standard	result 1
		Opponent Hurling, K (Keilo)				Opponent Valla, D (Dante)
2	5	Tournament Grey College Team Championship 2024				Tournament Grey College Team Championship 2024
		date 2024-02-23	rnd 1	type Standard	result 1	date 2024-02-24	rnd 5	type Standard	result 1
		Opponent Badenhorst, M (Matthew Peter)				Opponent Du Toit, SJM (Stephanus (Matteo))
3	4	Tournament Grey College Team Championship 2023				Tournament Cape Winelands Schools Chess - Trials 1 2023
		date 2023-02-04	rnd 5	type Standard	result 1	date 2023-02-25	rnd 3	type Standard	result 1
		Opponent Botha, L (Lika)				Opponent Saoud, J (Jassem)

#	Games	Start				End
1	10	Tournament Western Cape HS Individuals 2023				Tournament Paarl Boys High Chess Festival 2023
		date 2023-04-02	rnd 5	type Standard	result 1	date 2023-10-13	rnd 2	type Standard	result 1
		Opponent Hurling, K (Keilo)				Opponent Valla, D (Dante)
2	5	Tournament Grey College Team Championship 2024				Tournament Grey College Team Championship 2024
		date 2024-02-23	rnd 1	type Standard	result 1	date 2024-02-24	rnd 5	type Standard	result 1
		Opponent Badenhorst, M (Matthew Peter)				Opponent Du Toit, SJM (Stephanus (Matteo))
3	4	Tournament Grey College Team Championship 2023				Tournament Cape Winelands Schools Chess - Trials 1 2023
		date 2023-02-04	rnd 5	type Standard	result 1	date 2023-02-25	rnd 3	type Standard	result 1
		Opponent Botha, L (Lika)				Opponent Saoud, J (Jassem)

#	Games	Start				End
1	5	Tournament CW Top Schools 2023				Tournament CW Top Schools 2023
		date 2023-08-26	rnd 1	type Rapid	result 1	date 2023-08-26	rnd 5	type Rapid	result 1
		Opponent Liebenberg, D (Dewald)				Opponent Davids, J (Jowen)
2	4	Tournament Cape Winelands Schools Trials 1 2020				Tournament Central Winelands Schools Individual Trials 2022
		date 2020-02-15	rnd 6	type Rapid	result 1	date 2022-02-19	rnd 3	type Rapid	result 1
		Opponent Van Der Walt, A (Alexander)				Opponent Sithole, C (Clyde)
3	4	Tournament Western Cape Kings & Queens 2018				Tournament Cape Winelands Schools Trials 1 2020
		date 2018-10-20	rnd 5	type Rapid	result 1	date 2020-02-15	rnd 3	type Rapid	result 1
		Opponent Booysen, J (Jenilo)				Opponent Fortuin, C (Chad)

#	Games	Start				End
1	4	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 4	type Blitz	result 1	date 2018-12-19	rnd 7	type Blitz	result 1
		Opponent Williams, V (Vogan)				Opponent De Swardt, E (Eduan)
2	1	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 2	type Blitz	result 1	date 2018-12-19	rnd 2	type Blitz	result 1
		Opponent Richards, E (Ezekiel)				Opponent Richards, E (Ezekiel)

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	Geyser ,K (Kobus)	4	0.5	-318.8	3	0.5	-283.3	1	0	-425	0	0	0
1	Geyser ,K (Kobus)	4	1515.6	1196.8	3	1486.5	1232.2	1	1236.6	1090.6	0	0	0
2	Palmer ,C (Cheslin)	4	3	212.5	2	1.5	212.5	2	1.5	212.5	0	0	0
2	Palmer ,C (Cheslin)	4	1281.9	1494.4	2	1207.3	1494.4	2	1297.6	1494.4	0	0	0
3	Samuels ,K (Kieran)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
3	Samuels ,K (Kieran)	3	1425.1	1141.7	3	1429.7	1141.7	0	0	0	0	0	0
4	Van Tonder ,W (Wium)	3	1	-141.7	2	1	0	1	0	-425	0	0	0
4	Van Tonder ,W (Wium)	3	1374.2	1232.6	2	1508.9	1374.2	1	1186.4	949.2	0	0	0
5	Lielieveld ,F (Franco)	3	0.5	-283.3	1	0.5	0	2	0	-425	0	0	0
5	Lielieveld ,F (Franco)	3	1368.2	1084.9	1	1178.8	1368.2	2	1377.2	943.2	0	0	0
6	Thompson ,T (Themba)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
6	Thompson ,T (Themba)	2	1300.9	1088.4	2	1310.6	1088.4	0	0	0	0	0	0
7	Kedama ,S (Sandiso)	2	1	0	2	1	0	0	0	0	0	0	0
7	Kedama ,S (Sandiso)	2	1162.4	1162.4	2	1171.3	1162.4	0	0	0	0	0	0
8	Venter ,I (Ian)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
8	Venter ,I (Ian)	2	1484.3	1696.8	2	1482.2	1696.8	0	0	0	0	0	0
9	Reddy ,T (Thacian)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
9	Reddy ,T (Thacian)	2	1010.3	797.8	2	1012.7	797.8	0	0	0	0	0	0
10	Mostert ,M (Mikhail)	2	2	425	1	1	425	1	1	425	0	0	0
10	Mostert ,M (Mikhail)	2	1268.3	1693.3	1	1227.6	1693.3	1	1269.2	1693.3	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Grobler, Z (Zandre)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms