Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Waal, E (Erik)

Chess SA id

1090138806

FIDE id

Date of birth

2009-09-14 (U18)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

41.7

Junior GPX Points

1456.7

Item	Main	Standard	Rapid	Blitz
Rating	1593.4	1582.5	1363.1	1200
Raw rating	1570.8	1570.5	1363.1	1200
Weighted rating	1477.9	1459.9	1351.9	1200
Weighted performance	1593.4	1582.5	0	0
Floor	1070.8	1070.5	863.1	700
K-factor	32	32	36	36
Min/Max rating change allowed	97.8	97.8	131.4	165.8
Highest rating	1593.4 2025-11-01	1582.5 2025-11-01	1426.3 2023-08-01	1200 2018-10-01
Highest raw rating	1570.8 2025-11-01	1570.5 2025-11-01	1363.1 2025-09-01	1200 2024-02-01
Highest weighted rating	1477.9 2025-11-01	1459.9 2025-11-01	1348.3 2025-09-01	1200 2018-10-01
Highest weighted performance	1593.4 2025-11-01	1582.5 2025-11-01	1426.3 2023-08-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-9.5	-9.5	0	0
New rating	1583.8	1572.9	1363.1	1200
Analysis
Rating	1593.4	1582.5	1363.1	1200
Raw rating	1570.8	1570.5	1363.1	1200
Weighted rating	1477.9	1459.9	1351.9
Weighted performance	1593.4	1582.5	0
K-factor	32	32	36	36
Floor	1070.8	1070.5	863.1	700
Max/Min rating change allowed	97.8	97.8	131.4	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	1570.8	1570.5	1363.1	1200
New weighted rating	1487.9	1471.8	1353.3	1200
New weighted performance	1583.8	1572.9	0	0
Temp new rating	1583.8	1572.9	1363.1	1200
Temp new rating +/-	-9.5	-9.5	0	0
Final new rating +/-	-9.5	-9.5	0	0
New rating	1583.8	1572.9	1363.1	1200
New K-factor	32	32	36	36
New floor	1070.8	1070.5	863.1	700

Item	Main	Standard	Rapid
	0	0	0
	38	33	5
	32	26	6
	26	24	2
	12	0	12
	0	0	0
History	108	83	25

Games since
	Main 70	Standard 59		Rapid 11		Blitz 0
Gender	Male
Age group	U18
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	680		204		22
Male	607		182		18
U18	98		31		5
U18 Male	90		28		4
Standard
	RSA		Province		Region
Overall	698		186		20
Male	619		164		16
U18	96		23		3
U18 Male	87		21		3
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	38	27.5	72.37	190.1	1404.4	1594.6
Standard	33	24	72.73	193.2	1407.8	1601
Rapid	5	3.5	70	170	1382	1552
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	108	73	67.59	149.5	1320.7	1470.3
Standard	83	56	67.47	148.5	1331	1479.5
Rapid	25	17	68	153	1286.6	1439.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1570.8	1570.5	1363.1	1200
2025-09-30	1554.8	1552.6	1363.1	1200
2025-09-01	1503.3	1486.7	1363.1	1200
2025-08-01	1497.5	1486.7	1349.9	1200
2025-07-01	1497.5	1486.7	1349.9	1200
2025-06-01	1497.5	1486.7	1349.9	1200
2025-05-01	1497.5	1486.7	1349.9	1200
2025-04-01	1468.1	1452.4	1349.9	1200
2025-03-01	1457.4	1438.5	1349.9	1200
2025-02-01	1441	1420.8	1349.9	1200
2025-01-01	1441	1420.8	1349.9	1200
2024-12-01	1441	1420.8	1349.9	1200
2024-11-01	1463	1444.2	1349.9	1200
2024-10-01	1463	1444.2	1349.9	1200
2024-09-01	1424.8	1382.3	1349.9	1200
2024-08-01	1424.8	1382.3	1349.9	1200
2024-07-01	1428.5	1384.8	1349.9	1200
2024-09-01	1428.5	1384.8	1349.9	1200
2024-05-01	1428.5	1384.8	1349.9	1200
2024-04-01	1428.5	1384.8	1349.9	1200
2024-03-01	1355.8	1302.7	1349.9	1200
2024-02-01	1324	1302.7	1296.3	1200
2024-01-01	1324	1302.7	1296.3	1200
2023-12-01	1324	1302.7	1296.3	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	Paarl Boys' High School Chess Festival 2025 (Elite)	2025-10-17	2025-10-18	Standard	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
2	Western Cape Schools - Top Schools 2025 (U19)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	6	Yes	Analysis
3	Cape Winelands Top Schools 2025 (U17+U19)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U17 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
5	Cape Winelands Schools Prestige 2025 (U17 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
6	Grey College Team Championship 2025 (A)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	5	3.5	Yes	Analysis
7	Cape Winelands Schools - Trials 1 2025 (U17 Boys)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Paarl Boys' High School Chess Festival 2025 (Elite)	2025-10-17	2025-10-18	Standard	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
2	Western Cape Schools - Top Schools 2025 (U19)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	6	Yes	Analysis
3	Cape Winelands Top Schools 2025 (U17+U19)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U17 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
5	Cape Winelands Schools Prestige 2025 (U17 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
6	Grey College Team Championship 2025 (A)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	5	3.5	Yes	Analysis
7	Cape Winelands Schools - Trials 1 2025 (U17 Boys)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
8	Paarl Boys' High Chess Festival 2024	2024-10-04	2024-10-05	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
9	Western Cape Top Schools Championship 2024 (U15 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	5	Yes	Analysis
10	Cape Winelands - Top Schools 2024 (U15 Mixed)	2024-07-27	2024-07-27	Standard	Cape Winelands (WCW)	5	4	2.5	Yes	Analysis
11	Western Cape HS Individuals Championship 2024 (U15 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	3.5	Yes	Analysis
12	Cape Winelands Schools - Prestige 2024 (U15 Boys)	2024-03-02	2024-03-02	Standard	Cape Winelands (WCW)	5	4	2.5	Yes	Analysis
13	Cape Winelands Schools - HS Trials 1 2024 (U15 Boys)	2024-02-17	2024-02-17	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
14	Paarl Boys High Chess Festival 2023 (2nd Division)	2023-10-13	2023-10-14	Standard	Cape Winelands (WCW)	6	5	4	Yes	Analysis
15	Western Cape Top Schools 2023 (U15 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	3	2	Yes	Analysis
16	CW Top Schools 2023 (U15 Mix)	2023-08-26	2023-08-26	Rapid	Cape Winelands (WCW)	5	2	2	Yes	Analysis
17	Cape Winelands Open 2023 (Intermediate)	2023-07-22	2023-07-23	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
18	Cape Winelands Schools Prestige 2023 (U15 Boys)	2023-03-11	2023-03-11	Standard	Cape Winelands (WCW)	5	5	2.5	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	Yes	Analysis
20	Stellenbosch Primary 2022 (U13)	2022-08-13	2022-08-13	Rapid	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis
21	2022 East Dist Individuals (U13)	2022-03-12	2022-03-12	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis

#	Games	Start				End
1	7	Tournament Western Cape Schools - Top Schools 2025				Tournament Paarl Boys' High School Chess Festival 2025
		date 2025-09-06	rnd 1	type Standard	result 1	date 2025-10-17	rnd 1	type Standard	result 1
		Opponent Kobese, I (Inga)				Opponent Van Der Spuy, A (Albert)
2	7	Tournament Western Cape Top Schools Championship 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-08-30	rnd 3	type Standard	result 1	date 2024-10-04	rnd 3	type Standard	result 1
		Opponent Moja, M (Malesela)				Opponent Janelidze, M (Mariam)
3	6	Tournament Grey College Team Championship 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 4	type Standard	result 0.5	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Venter, I (Ian)				Opponent Calitz, Z (Zandre)

#	Games	Start				End
1	7	Tournament Western Cape Top Schools Championship 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-08-30	rnd 3	type Standard	result 1	date 2024-10-04	rnd 3	type Standard	result 1
		Opponent Moja, M (Malesela)				Opponent Janelidze, M (Mariam)
2	6	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 1	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Kobese, I (Inga)				Opponent Beukes, R (Rayneqo)
3	6	Tournament Grey College Team Championship 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 4	type Standard	result 0.5	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Venter, I (Ian)				Opponent Calitz, Z (Zandre)

#	Games	Start				End
1	6	Tournament Stellenbosch Primary 2022				Tournament Cape Winelands Schools - HS Trials 1 2024
		date 2022-08-13	rnd 5	type Rapid	result 0.5	date 2024-02-17	rnd 2	type Rapid	result 1
		Opponent Anathi, N (Ntlahla)				Opponent Groenewald, W (Willem)
2	4	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent Alexander, R (Rosco)				Opponent Matthys, C (Chadley)
3	3	Tournament Stellenbosch Primary 2022				Tournament Stellenbosch Primary 2022
		date 2022-08-13	rnd 1	type Rapid	result 1	date 2022-08-13	rnd 3	type Rapid	result 1
		Opponent Panduva, O (Ongeza)				Opponent Mente, L (Limi)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Western Cape Top Schools Championship 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-08-30	rnd 3	type Standard	result 1	date 2024-10-04	rnd 3	type Standard	result 1
		Opponent Moja, M (Malesela)				Opponent Janelidze, M (Mariam)
2	6	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 1	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Kobese, I (Inga)				Opponent Beukes, R (Rayneqo)
3	6	Tournament Western Cape Top Schools 2023				Tournament Paarl Boys High Chess Festival 2023
		date 2023-09-02	rnd 2	type Standard	result 1	date 2023-10-14	rnd 5	type Standard	result 1
		Opponent Van Wyngaardt, K (Kayden)				Opponent Van Wyk, M (Malienke)

#	Games	Start				End
1	7	Tournament Western Cape Top Schools Championship 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-08-30	rnd 3	type Standard	result 1	date 2024-10-04	rnd 3	type Standard	result 1
		Opponent Moja, M (Malesela)				Opponent Janelidze, M (Mariam)
2	6	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 1	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Kobese, I (Inga)				Opponent Beukes, R (Rayneqo)
3	6	Tournament Western Cape Top Schools 2023				Tournament Paarl Boys High Chess Festival 2023
		date 2023-09-02	rnd 2	type Standard	result 1	date 2023-10-14	rnd 5	type Standard	result 1
		Opponent Van Wyngaardt, K (Kayden)				Opponent Van Wyk, M (Malienke)

#	Games	Start				End
1	5	Tournament Stellenbosch Primary 2022				Tournament Cape Winelands Schools - HS Trials 1 2024
		date 2022-08-13	rnd 6	type Rapid	result 1	date 2024-02-17	rnd 2	type Rapid	result 1
		Opponent Roos, A (Aleza)				Opponent Groenewald, W (Willem)
2	3	Tournament Stellenbosch Primary 2022				Tournament Stellenbosch Primary 2022
		date 2022-08-13	rnd 1	type Rapid	result 1	date 2022-08-13	rnd 3	type Rapid	result 1
		Opponent Panduva, O (Ongeza)				Opponent Mente, L (Limi)
3	2	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Alexander, R (Rosco)				Opponent Page, C (Connor)

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	Jeppie ,R (Riaad)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
1	Jeppie ,R (Riaad)	3	1228.2	1086.5	3	1215.8	1086.5	0	0	0	0	0	0
2	Van Niekerk ,N (Nina)	2	2	425	2	2	425	0	0	0	0	0	0
2	Van Niekerk ,N (Nina)	2	1535.6	1960.6	2	1530.4	1960.6	0	0	0	0	0	0
3	Calitz ,J (Joey)	2	1	0	2	1	0	0	0	0	0	0	0
3	Calitz ,J (Joey)	2	1345.9	1345.9	2	1342.1	1345.9	0	0	0	0	0	0
4	Rosenberg ,W (Wagheed)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
4	Rosenberg ,W (Wagheed)	2	1566.8	1354.3	2	1551.4	1354.3	0	0	0	0	0	0
5	Henning ,C (Chris)	2	1	0	2	1	0	0	0	0	0	0	0
5	Henning ,C (Chris)	2	1636.2	1636.2	2	1644.5	1636.2	0	0	0	0	0	0
6	Muller ,K (Kieran)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
6	Muller ,K (Kieran)	2	1548.2	1760.7	2	1533.3	1760.7	0	0	0	0	0	0
7	Barnard ,B (Ben)	2	2	425	2	2	425	0	0	0	0	0	0
7	Barnard ,B (Ben)	2	1408.8	1833.8	2	1304	1833.8	0	0	0	0	0	0
8	Potgieter ,W (Werne)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Potgieter ,W (Werne)	2	1674.2	1249.2	2	1669.5	1249.2	0	0	0	0	0	0
9	Maseti ,E (Endinako)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
9	Maseti ,E (Endinako)	2	1311.8	1099.2	1	1200	1311.8	1	1308.8	886.8	0	0	0
10	Page ,C (Connor)	2	2	425	1	1	425	1	1	425	0	0	0
10	Page ,C (Connor)	2	1511.3	1936.3	1	1505.6	1936.3	1	1244.1	1936.3	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

De Waal, E (Erik)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms