Chess South Africa Ratings Database

PLAYER PAGE

Personal

Vermaak, S (Sebastian)

Chess SA id

1160153041

FIDE id

Date of birth

2016-05-10 (U10)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-26

Personal details last changed

1900-01-01

Junior GPX Games

22.5

Junior GPX Points

1344.6

Item	Main	Standard	Rapid	Blitz
Rating	1374.4	1336.4	1215.9	1200
Raw rating	1374.4	1336.4	1215.9	1200
Weighted rating	1312.2	1297.4	1206.8	1200
Weighted performance	1331.1	1299.6	0	0
Floor	898	857.1	715.9	700
K-factor	36	36	36	36
Min/Max rating change allowed	129.3	136.5	162.1	165.8
Highest rating	1398 2025-06-01	1363.9 2023-04-01	1215.9 2025-05-05	1200 2018-10-01
Highest raw rating	1398 2025-06-01	1357.1 2025-06-01	1215.9 2025-05-05	1200 2024-03-01
Highest weighted rating	1305 2025-09-01	1292.9 2025-09-01	1204.8 2025-08-01	1200 2018-10-01
Highest weighted performance	1398 2025-06-01	1363.9 2023-04-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1374.4	1336.4	1215.9	1200
Analysis
Rating	1374.4	1336.4	1215.9	1200
Raw rating	1374.4	1336.4	1215.9	1200
Weighted rating	1312.2	1297.4	1206.8
Weighted performance	1331.1	1299.6	0
K-factor	36	36	36	36
Floor	898	857.1	715.9	700
Max/Min rating change allowed	129.3	136.5	162.1	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	1374.4	1336.4	1215.9	1200
New weighted rating	1318.9	1301.5	1207.8	1200
New weighted performance	1330.6	1299.2	0	0
Temp new rating	1374.4	1336.4	1215.9	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1374.4	1336.4	1215.9	1200
New K-factor	36	36	36	36
New floor	898	857.1	715.9	700

Item	Main	Standard	Rapid
	0	0	0
	20	15	5
	34	34	0
	10	10	0
	0	0	0
	0	0	0
History	64	59	5

Games since
	Main 54	Standard 49		Rapid 5		Blitz 0
Gender	Male
Age group	U10
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2422		837		128
Male	1977		682		104
U10	174		76		11
U10 Male	148		68		10
Standard
	RSA		Province		Region
Overall	2717		982		132
Male	2184		793		110
U10	215		89		9
U10 Male	180		78		8
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	20	12	60	85	1341.9	1426.9
Standard	15	9	60	85	1330.2	1415.2
Rapid	5	3	60	85	1377	1462
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	64	35.5	55.47	46.5	1283.1	1329.6
Standard	59	32.5	55.08	43.2	1275.1	1318.4
Rapid	5	3	60	85	1377	1462
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1374.4	1336.4	1215.9	1200
2025-09-01	1374.4	1336.4	1215.9	1200
2025-08-01	1398	1357.1	1215.9	1200
2025-07-01	1398	1357.1	1215.9	1200
2025-06-01	1398	1357.1	1215.9	1200
2025-05-01	1290.1	1266.9	1215.9	1200
2025-04-01	1266.1	1266.6	1200	1200
2025-03-01	1266.1	1266.3	1200	1200
2025-02-01	1266.1	1265.5	1200	1200
2025-01-01	1266.1	1262	1200	1200
2024-12-01	1251.2	1247.2	1200	1200
2024-11-01	1251.2	1247.2	1200	1200
2024-10-01	1251.2	1247.2	1200	1200
2024-09-01	1300.2	1307	1200	1200
2024-08-01	1300.2	1307	1200	1200
2024-07-01	1269.2	1279.3	1200	1200
2024-06-01	1269.2	1279.3	1200	1200
2024-08-01	1270.7	1284	1200	1200
2024-04-01	1257.6	1266.4	1200	1200
2024-03-01	1257.6	1266.4	1200	1200
2024-02-01	1257.6	1266.4	1200	1200
2024-01-01	1244.1	1251.6	1200	1200
2023-12-01	1244.1	1251.6	1200	1200
2023-11-01	1244.1	1251.6	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	Ekurhuleni Trials 2025 (G)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Ekurhuleni Trials 2025 (G)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
3	CPH May 2025 (D)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
4	Chess Molecules Open Tournament 2025 (D)	2025-04-19	2025-04-19	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni Trials 2025 (G)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Ekurhuleni Trials 2025 (G)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
3	CPH May 2025 (D)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
4	Chess Molecules Open Tournament 2025 (D)	2025-04-19	2025-04-19	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
5	Gauteng Inter-Region at UJ 2024 (U10 Open)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
6	Ekurhuleni Closed 2024 (U8+U10)	2024-09-21	2024-09-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
7	Mzansi Spring Open 2024 (Intermediate)	2024-09-07	2024-09-07	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
8	Ekurhuleni Trails 3 2024 (U8+U10)	2024-08-24	2024-08-24	Standard	Ekurhuleni (GE)	5	0	0	No	Analysis
9	Ekurhuleni Trails 2 2024 (U8+U10)	2024-07-27	2024-07-27	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
10	2024 Mid Gauteng Open Chess Tournament (U10)	2024-05-02	2024-05-02	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
11	Ekurhuleni Open 2024 (E)	2024-04-06	2024-04-06	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
12	2024 Gauteng Inter-Region Chess Championship (U8)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
13	Ekurhuleni Chess Spring Tournament 2023 (E)	2023-09-23	2023-09-23	Standard	Ekurhuleni (GE)	5	0	0	No	Analysis
14	Ekurhuleni Trials 2 2023 (U8)	2023-04-22	2023-04-22	Standard	Ekurhuleni (GE)	5	5	4.5	Yes	Analysis
15	Ekhuruleni Chess Trials 1 2023 (U8+U10)	2023-03-25	2023-03-25	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

#	Games	Start				End
1	6	Tournament Ekurhuleni Trials 2 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-04-22	rnd 1	type Standard	result 1	date 2024-01-13	rnd 1	type Standard	result 1
		Opponent Masekela, L (Lepato)				Opponent Steyn, K (Kahn)
2	4	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-05-24	rnd 4	type Standard	result 1	date 2025-07-26	rnd 2	type Standard	result 1
		Opponent Machuisa, M (Mokgethwa)				Opponent Mafane, A (Atlegang)
3	3	Tournament CPH May 2025				Tournament CPH May 2025
		date 2025-05-03	rnd 2	type Standard	result 1	date 2025-05-03	rnd 4	type Standard	result 1
		Opponent Hsu, C (Carson)				Opponent Meyerowitz, M (Matai)

#	Games	Start				End
1	6	Tournament Ekurhuleni Trials 2 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-04-22	rnd 1	type Standard	result 1	date 2024-01-13	rnd 1	type Standard	result 1
		Opponent Masekela, L (Lepato)				Opponent Steyn, K (Kahn)
2	4	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-05-24	rnd 4	type Standard	result 1	date 2025-07-26	rnd 2	type Standard	result 1
		Opponent Machuisa, M (Mokgethwa)				Opponent Mafane, A (Atlegang)
3	3	Tournament CPH May 2025				Tournament CPH May 2025
		date 2025-05-03	rnd 2	type Standard	result 1	date 2025-05-03	rnd 4	type Standard	result 1
		Opponent Hsu, C (Carson)				Opponent Meyerowitz, M (Matai)

#	Games	Start				End
1	2	Tournament Chess Molecules Open Tournament 2025				Tournament Chess Molecules Open Tournament 2025
		date 2025-04-19	rnd 4	type Rapid	result 1	date 2025-04-19	rnd 5	type Rapid	result 1
		Opponent Serrao, C (Charles)				Opponent Buddha, J (Jayansh)
2	1	Tournament Chess Molecules Open Tournament 2025				Tournament Chess Molecules Open Tournament 2025
		date 2025-04-19	rnd 1	type Rapid	result 1	date 2025-04-19	rnd 1	type Rapid	result 1
		Opponent Ntsibande, S (Sinethemba)				Opponent Ntsibande, S (Sinethemba)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-05-24	rnd 4	type Standard	result 1	date 2025-07-26	rnd 2	type Standard	result 1
		Opponent Machuisa, M (Mokgethwa)				Opponent Mafane, A (Atlegang)
2	3	Tournament CPH May 2025				Tournament CPH May 2025
		date 2025-05-03	rnd 2	type Standard	result 1	date 2025-05-03	rnd 4	type Standard	result 1
		Opponent Hsu, C (Carson)				Opponent Meyerowitz, M (Matai)
3	3	Tournament 2024 Mid Gauteng Open Chess Tournament				Tournament Ekurhuleni Trails 2 2024
		date 2024-05-02	rnd 5	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Motebejane, M (Mokgethwa)				Opponent Schreiber, I (Ian)

#	Games	Start				End
1	4	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-05-24	rnd 4	type Standard	result 1	date 2025-07-26	rnd 2	type Standard	result 1
		Opponent Machuisa, M (Mokgethwa)				Opponent Mafane, A (Atlegang)
2	3	Tournament CPH May 2025				Tournament CPH May 2025
		date 2025-05-03	rnd 2	type Standard	result 1	date 2025-05-03	rnd 4	type Standard	result 1
		Opponent Hsu, C (Carson)				Opponent Meyerowitz, M (Matai)
3	3	Tournament 2024 Mid Gauteng Open Chess Tournament				Tournament Ekurhuleni Trails 2 2024
		date 2024-05-02	rnd 5	type Standard	result 1	date 2024-07-27	rnd 2	type Standard	result 1
		Opponent Motebejane, M (Mokgethwa)				Opponent Schreiber, I (Ian)

#	Games	Start				End
1	2	Tournament Chess Molecules Open Tournament 2025				Tournament Chess Molecules Open Tournament 2025
		date 2025-04-19	rnd 4	type Rapid	result 1	date 2025-04-19	rnd 5	type Rapid	result 1
		Opponent Serrao, C (Charles)				Opponent Buddha, J (Jayansh)
2	1	Tournament Chess Molecules Open Tournament 2025				Tournament Chess Molecules Open Tournament 2025
		date 2025-04-19	rnd 1	type Rapid	result 1	date 2025-04-19	rnd 1	type Rapid	result 1
		Opponent Ntsibande, S (Sinethemba)				Opponent Ntsibande, S (Sinethemba)

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	Steyn ,K (Kian)	3	0	-425	2	0	-425	1	0	-425	0	0	0
1	Steyn ,K (Kian)	3	1564.9	1139.9	2	1543.2	1139.9	1	1135.7	1139.9	0	0	0
2	Mendonca ,M (Mark)	2	1	0	2	1	0	0	0	0	0	0	0
2	Mendonca ,M (Mark)	2	1354.9	1354.9	2	1402.7	1354.9	0	0	0	0	0	0
3	Zhu ,R (Ryan Yuancheng)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Zhu ,R (Ryan Yuancheng)	2	1309.8	884.8	2	1321.3	884.8	0	0	0	0	0	0
4	Mafane ,A (Atlegang)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
4	Mafane ,A (Atlegang)	2	1254.4	1466.9	2	1247.7	1466.9	0	0	0	0	0	0
5	Anthonissen ,MV (Mikhael Villem)	2	0	-425	1	0	-425	1	0	-425	0	0	0
5	Anthonissen ,MV (Mikhael Villem)	2	1596.2	1171.2	1	1608.9	1171.2	1	1200	1171.2	0	0	0
6	Jansen Van Vuren ,R (Reuben)	1	1	425	1	1	425	0	0	0	0	0	0
6	Jansen Van Vuren ,R (Reuben)	1	1366	1791	1	1346.2	1791	0	0	0	0	0	0
7	Van Den Berg ,D (Declan)	1	1	425	1	1	425	0	0	0	0	0	0
7	Van Den Berg ,D (Declan)	1	970.2	1395.2	1	950.8	1395.2	0	0	0	0	0	0
8	Aucamp ,V (Victoria)	1	1	425	1	1	425	0	0	0	0	0	0
8	Aucamp ,V (Victoria)	1	1195.1	1620.1	1	1194.1	1620.1	0	0	0	0	0	0
9	Jacobs ,I (Ian)	1	1	425	1	1	425	0	0	0	0	0	0
9	Jacobs ,I (Ian)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Diyalani ,D (Dhanush)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Diyalani ,D (Dhanush)	1	1405.7	980.7	1	1389.2	980.7	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

Vermaak, S (Sebastian)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms