Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Klerk, H (Hanro)

Chess SA id

1090098025

FIDE id

Date of birth

2009-07-23 (U18)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-12-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1422	1320	1402.8	1200
Raw rating	1422	1320	1402.8	1200
Weighted rating	1376.6	1319.8	1336.9	1200
Weighted performance	1373.5	1144.7	1387.5	0
Floor	922	836.2	902.8	700
K-factor	32	36	32	36
Min/Max rating change allowed	120.9	139.8	124.2	165.8
Highest rating	1422 2026-01-01	1348.2 2022-08-01	1402.8 2026-01-01	1200 2018-10-01
Highest raw rating	1422 2026-01-01	1336.2 2024-08-01	1402.8 2026-01-01	1200 2024-02-01
Highest weighted rating	1376.6 2026-01-01	1314.7 2025-08-01	1336.9 2026-01-01	1200 2018-10-01
Highest weighted performance	1413.1 2022-08-01	1348.2 2022-08-01	1387.5 2026-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0.1	0	0
New rating	1422	1320.1	1402.8	1200
Analysis
Rating	1422	1320	1402.8	1200
Raw rating	1422	1320	1402.8	1200
Weighted rating	1376.6	1319.8	1336.9
Weighted performance	1373.5	1144.7	1387.5
K-factor	32	36	32	36
Floor	922	836.2	902.8	700
Max/Min rating change allowed	120.9	139.8	124.2	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	1422	1320	1402.8	1200
New weighted rating	1381.1	1320.1	1343.4	1200
New weighted performance	1364.3	1136.2	1378.3	0
Temp new rating	1422	1320.1	1402.8	1200
Temp new rating +/-	0	0.1	0	0
Final new rating +/-	0	0.1	0	0
New rating	1422	1320.1	1402.8	1200
New K-factor	32	36	32	36
New floor	922	836.2	902.8	700

Item	Main	Standard	Rapid
	0	0	0
	33	16	17
	33	25	8
	20	10	10
	30	19	11
	5	0	5
History	142	74	68

Games since
	Main 66	Standard 41		Rapid 25		Blitz 0
Gender	Male
Age group	U18
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2108		646		92
Male	1729		516		71
U18	340		100		20
U18 Male	293		83		16
Standard
	RSA		Province		Region
Overall	2979		850		117
Male	2360		631		82
U18	474		123		22
U18 Male	400		95		16
Rapid
	RSA		Province		Region
Overall	585		295		47
Male	502		254		36
U18	69		37		4
U18 Male	63		34		3
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	33	20.5	62.12	103	1309.8	1412.8
Standard	16	7.5	46.88	-26.6	1309.2	1282.7
Rapid	17	13	76.47	225	1310.3	1535.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	142	79.5	55.99	50.9	1268.7	1319.6
Standard	74	38.5	52.03	17.2	1300.3	1317.6
Rapid	68	41	60.29	87.5	1234.3	1321.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1422	1320	1402.8	1200
2025-11-30	1407.1	1320	1387.7	1200
2025-11-01	1407.1	1320	1387.7	1200
2025-09-30	1407.1	1320	1387.7	1200
2025-09-01	1407.1	1320	1387.7	1200
2025-08-01	1393.9	1320	1369.5	1200
2025-07-01	1350.3	1320	1298.3	1200
2025-06-01	1350.2	1320	1298.3	1200
2025-05-01	1350.2	1320	1298.3	1200
2025-04-01	1350.2	1320	1298.3	1200
2025-03-01	1352.9	1315.6	1298.3	1200
2025-02-01	1343.2	1297.7	1298.3	1200
2025-01-01	1345.2	1310.6	1298.3	1200
2024-12-01	1345.2	1310.6	1298.3	1200
2024-11-01	1365.5	1336.2	1298.3	1200
2024-10-01	1365.5	1336.2	1298.3	1200
2024-09-01	1365.5	1336.2	1298.3	1200
2024-11-01	1365.5	1336.2	1298.3	1200
2024-07-01	1361.9	1330.4	1298.3	1200
2024-06-01	1361.9	1330.4	1298.3	1200
2024-05-01	1361.9	1330.4	1298.3	1200
2024-04-01	1366	1330.4	1303.3	1200
2024-03-01	1320.3	1250.8	1303.3	1200
2024-02-01	1313.2	1250.8	1291.4	1200

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	Six Gun Grill Summer Sport Festival Chess Championships 2025 (Individual U18 Boys)	2025-12-09	2025-12-09	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
2	Six Gun Grill Summer Sport Festival Chess Championships 2025 (Team U15+U18)	2025-12-08	2025-12-08	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
3	Cape Winelands Top Schools 2025 (U17+U19)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis
4	Cape Winelands Schools Development 2025 (U15+U17)	2025-08-02	2025-08-02	Rapid	Cape Winelands (WCW)	5	5	4.5	Yes	Analysis
5	4th Curro Durbanville Rapid Open 2025 (Intermediate)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	7	6	Yes	Analysis
6	Cape Winelands Schools Prestige 2025 (U17 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
7	Cape Winelands Schools - Trials 1 2025 (U17 Boys)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
8	Marie Delport Memorial 2025 (Open)	2025-01-25	2025-01-26	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
9	Paarl Boys' High Chess Festival 2024 (Elite)	2024-10-04	2024-10-05	Standard	Cape Winelands (WCW)	6	4	1	Yes	Analysis
10	Cape Winelands - Top Schools 2024 (U15 Mixed)	2024-07-27	2024-07-27	Standard	Cape Winelands (WCW)	5	4	2	Yes	Analysis
11	Cape Town Junior League Qualifier 2024 (U18 Open)	2024-04-06	2024-04-06	Rapid	Cape Town (WCT)	6	2	1	Yes	Analysis
12	Western Cape HS Individuals Championship 2024 (U15 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	3	Yes	Analysis
13	Cape Winelands Schools - Prestige 2024 (U15 Boys)	2024-03-02	2024-03-02	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
14	Cape Winelands Schools - HS Trials 1 2024 (U15 Boys)	2024-02-17	2024-02-17	Rapid	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
15	Cape Winelands - Marie Delport Memorial 2024 (Open)	2024-01-27	2024-01-28	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
16	CW Top Schools 2023 (U15 Mix)	2023-08-26	2023-08-26	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
17	Midas Paints Chess Cup Term 2 2023 (U14)	2023-04-15	2023-04-15	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
18	Cape Winelands Schools Prestige 2023 (U15 Boys)	2023-03-11	2023-03-11	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
19	Cape Winelands Schools Chess - Trials 1 2023 (U15 Boys)	2023-02-25	2023-02-25	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
20	Drakenstein Pioneers Club Championship 2022 (Open)	2022-09-20	2022-10-11	Standard	Cape Winelands (WCW)	5	3	1	Yes	Analysis
21	Stellenbosch Primary 2022 (U13)	2022-08-13	2022-08-13	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
22	Cape Winelands Schools Top Schools 2022 (U13 Mix)	2022-08-27	2022-08-27	Standard	Cape Winelands (WCW)	5	5	5	Yes	Analysis
23	Western Cape Schools 2022 (U13 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
24	Cape Winelands Schools 2022 (U13 Boys)	2022-03-12	2022-03-12	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
25	Central Winelands Schools Individual Trials 2022 (U13 Boys)	2022-02-19	2022-02-19	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
26	Cape Winelands Schools Closed 2021 (U13 Boys)	2021-09-24	2021-09-24	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
27	Drakenstein Pioneers Inaugural 2020 (C)	2020-03-14	2020-03-14	Standard	Cape Winelands (WCW)	5	4	1	Yes	Analysis
28	Cape Winelands Schools Trials 1 2020 (U11 Boys)	2020-02-08	2020-02-08	Rapid	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis
29	CW Schools Open 2019 (U11 Boys)	2019-02-02	2019-02-02	Rapid	Cape Winelands (WCW)	6	5	2	Yes	Analysis
30	Cape Winelands Schools Trials 1 2018 (U9 Boys)	2018-03-03	2018-03-03	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis

#	Games	Start				End
1	6	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 1	type Rapid	result 1	date 2025-07-19	rnd 6	type Rapid	result 1
		Opponent Nair, J (Jashen)				Opponent Musakwa, C (Courtney)
2	6	Tournament Cape Winelands Schools Top Schools 2022				Tournament Drakenstein Pioneers Club Championship 2022
		date 2022-08-27	rnd 1	type Standard	result 1	date 2022-09-20	rnd 1	type Standard	result 1
		Opponent Smit, S (Sam)				Opponent Jacobs, M (Morne)
3	6	Tournament Central Winelands Schools Individual Trials 2022				Tournament Cape Winelands Schools 2022
		date 2022-02-19	rnd 4	type Rapid	result 1	date 2022-03-12	rnd 4	type Standard	result 1
		Opponent Kritzinger, AD (Andre Daniel)				Opponent Neethling, S (Sean)

#	Games	Start				End
1	7	Tournament Western Cape Schools 2022				Tournament Drakenstein Pioneers Club Championship 2022
		date 2022-05-29	rnd 6	type Standard	result 1	date 2022-09-20	rnd 1	type Standard	result 1
		Opponent Petersen, S (Shenwin)				Opponent Jacobs, M (Morne)
2	4	Tournament Cape Winelands - Marie Delport Memorial 2024				Tournament Cape Winelands Schools - Prestige 2024
		date 2024-01-28	rnd 5	type Standard	result 1	date 2024-03-02	rnd 2	type Standard	result 1
		Opponent Douries, A (Abrial)				Opponent Lawardien, D (Damian)
3	4	Tournament Cape Winelands Schools 2022				Tournament Cape Winelands Schools 2022
		date 2022-03-12	rnd 1	type Standard	result 1	date 2022-03-12	rnd 4	type Standard	result 1
		Opponent Ntsondwa, L (Lunika)				Opponent Neethling, S (Sean)

#	Games	Start				End
1	7	Tournament Cape Town Junior League Qualifier 2024				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2024-04-06	rnd 6	type Rapid	result 1	date 2025-07-19	rnd 6	type Rapid	result 1
		Opponent Craig, C (Connor)				Opponent Musakwa, C (Courtney)
2	6	Tournament Central Winelands Schools Individual Trials 2022				Tournament Stellenbosch Primary 2022
		date 2022-02-19	rnd 4	type Rapid	result 1	date 2022-08-13	rnd 4	type Rapid	result 1
		Opponent Kritzinger, AD (Andre Daniel)				Opponent Anathi, N (Ntlahla)
3	5	Tournament Cape Winelands Schools Development 2025				Tournament Cape Winelands Schools Development 2025
		date 2025-08-02	rnd 1	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Franke, L (Lucian)				Opponent Blaauws, I (Ilano)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 1	type Rapid	result 1	date 2025-07-19	rnd 6	type Rapid	result 1
		Opponent Nair, J (Jashen)				Opponent Musakwa, C (Courtney)
2	6	Tournament Cape Winelands Schools Top Schools 2022				Tournament Drakenstein Pioneers Club Championship 2022
		date 2022-08-27	rnd 1	type Standard	result 1	date 2022-09-20	rnd 1	type Standard	result 1
		Opponent Smit, S (Sam)				Opponent Jacobs, M (Morne)
3	5	Tournament Western Cape Schools 2022				Tournament Stellenbosch Primary 2022
		date 2022-05-29	rnd 6	type Standard	result 1	date 2022-08-13	rnd 4	type Rapid	result 1
		Opponent Petersen, S (Shenwin)				Opponent Anathi, N (Ntlahla)

#	Games	Start				End
1	7	Tournament Western Cape Schools 2022				Tournament Drakenstein Pioneers Club Championship 2022
		date 2022-05-29	rnd 6	type Standard	result 1	date 2022-09-20	rnd 1	type Standard	result 1
		Opponent Petersen, S (Shenwin)				Opponent Jacobs, M (Morne)
2	4	Tournament Cape Winelands - Marie Delport Memorial 2024				Tournament Cape Winelands Schools - Prestige 2024
		date 2024-01-28	rnd 5	type Standard	result 1	date 2024-03-02	rnd 2	type Standard	result 1
		Opponent Douries, A (Abrial)				Opponent Lawardien, D (Damian)
3	3	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-08	rnd 5	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Zanato, D (Diego)				Opponent February, E (Ethan)

#	Games	Start				End
1	7	Tournament Cape Town Junior League Qualifier 2024				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2024-04-06	rnd 6	type Rapid	result 1	date 2025-07-19	rnd 6	type Rapid	result 1
		Opponent Craig, C (Connor)				Opponent Musakwa, C (Courtney)
2	6	Tournament Central Winelands Schools Individual Trials 2022				Tournament Stellenbosch Primary 2022
		date 2022-02-19	rnd 4	type Rapid	result 1	date 2022-08-13	rnd 4	type Rapid	result 1
		Opponent Kritzinger, AD (Andre Daniel)				Opponent Anathi, N (Ntlahla)
3	3	Tournament Cape Winelands Schools Development 2025				Tournament Cape Winelands Schools Development 2025
		date 2025-08-02	rnd 1	type Rapid	result 1	date 2025-08-02	rnd 3	type Rapid	result 1
		Opponent Franke, L (Lucian)				Opponent Geland, R (Remarqio)

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	Samuels ,R (Reagan)	4	0	-425	1	0	-425	3	0	-425	0	0	0
1	Samuels ,R (Reagan)	4	1236.2	811.2	1	1280.3	811.2	3	1205.8	811.2	0	0	0
2	Neethling ,S (Sean)	3	2	141.7	2	2	425	1	0	-425	0	0	0
2	Neethling ,S (Sean)	3	1268.6	1410.3	2	1205	1693.6	1	1385.2	843.6	0	0	0
3	Kruger ,A (Aiden)	3	0	-425	2	0	-425	1	0	-425	0	0	0
3	Kruger ,A (Aiden)	3	1435.6	1010.6	2	1403.6	1010.6	1	1430	1010.6	0	0	0
4	Grobbelaar ,A (Altus)	2	1	0	2	1	0	0	0	0	0	0	0
4	Grobbelaar ,A (Altus)	2	1255.2	1255.2	2	1222.2	1255.2	0	0	0	0	0	0
5	Alkaster ,R (Rickelme)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Alkaster ,R (Rickelme)	2	1268.8	843.8	2	1238.4	843.8	0	0	0	0	0	0
6	Scholtz ,T (Triston)	2	1	0	2	1	0	0	0	0	0	0	0
6	Scholtz ,T (Triston)	2	1248.5	1248.5	2	1252.4	1248.5	0	0	0	0	0	0
7	Van Heerden ,EJ (Ethan Joel)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Van Heerden ,EJ (Ethan Joel)	2	1566.4	1141.4	2	1535.8	1141.4	0	0	0	0	0	0
8	Michaels ,M (Marqwin)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
8	Michaels ,M (Marqwin)	2	1195.4	982.9	2	963.6	982.9	0	0	0	0	0	0
9	Karsten ,K (Keagan)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Karsten ,K (Keagan)	2	1529.4	1104.4	2	1517.1	1104.4	0	0	0	0	0	0
10	Calitz ,Z (Zandre)	2	0	-425	1	0	-425	1	0	-425	0	0	0
10	Calitz ,Z (Zandre)	2	1259.4	834.4	1	1213.8	834.4	1	1198.8	834.4	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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Personal

De Klerk, H (Hanro)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms