Chess South Africa Ratings Database

PLAYER PAGE

Personal

Vermaak, JS (Jacobus Stephanus)

Chess SA id

102041528

FIDE id

Date of birth

2002-08-13 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-01-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1271.7	1277.5	1285.2	1285.2
Raw rating	1271.7	1277.5	1285.2	1285.2
Weighted rating	1271.7	1277.5	1285.2	1285.2
Weighted performance	191.8	192.2	0	0
Floor	836.9	844.4	785.2	785.2
K-factor	36	36	36	36
Min/Max rating change allowed	149.7	148.5	146.9	146.9
Highest rating	1347.6 2018-03-01	1351.3 2018-03-01	1285.2 2018-09-01	1285.2 2018-09-01
Highest raw rating	1336.9 2018-04-01	1344.4 2018-04-01	1285.2 2024-02-01	1285.2 2024-02-01
Highest weighted rating	1336.9 2018-12-01	1344.4 2018-12-01	1285.2 2018-09-01	1285.2 2018-09-01
Highest weighted performance	1347.6 2018-03-01	1351.3 2018-03-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1271.7	1277.5	1285.2	1285.2
Analysis
Rating	1271.7	1277.5	1285.2	1285.2
Raw rating	1271.7	1277.5	1285.2	1285.2
Weighted rating	1271.7	1277.5	1285.2
Weighted performance	191.8	192.2	0
K-factor	36	36	36	36
Floor	836.9	844.4	785.2	785.2
Max/Min rating change allowed	149.7	148.5	146.9	146.9
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	1271.7	1277.5	1285.2	1285.2
New weighted rating	1271.7	1277.5	1285.2	1285.2
New weighted performance	184.4	184.8	0	0
Temp new rating	1271.7	1277.5	1285.2	1285.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1271.7	1277.5	1285.2	1285.2
New K-factor	36	36	36	36
New floor	836.9	844.4	785.2	785.2

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	331	328	3

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	44	22.5	51.14	9.7	1295.2	1304.8
Standard	44	22.5	51.14	9.7	1295.2	1304.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1271.7	1277.5	1285.2	1285.2
2025-09-30	1271.7	1277.5	1285.2	1285.2
2025-09-01	1271.7	1277.5	1285.2	1285.2
2025-08-01	1271.7	1277.5	1285.2	1285.2
2025-07-01	1271.7	1277.5	1285.2	1285.2
2025-06-01	1271.7	1277.5	1285.2	1285.2
2025-05-01	1271.7	1277.5	1285.2	1285.2
2025-04-01	1271.7	1277.5	1285.2	1285.2
2025-03-01	1271.7	1277.5	1285.2	1285.2
2025-02-01	1271.7	1277.5	1285.2	1285.2
2025-01-01	1271.7	1277.5	1285.2	1285.2
2024-12-01	1271.7	1277.5	1285.2	1285.2
2024-11-01	1271.7	1277.5	1285.2	1285.2
2024-10-01	1271.7	1277.5	1285.2	1285.2
2024-09-01	1271.7	1277.5	1285.2	1285.2
2024-08-01	1271.7	1277.5	1285.2	1285.2
2024-07-01	1271.7	1277.5	1285.2	1285.2
2024-09-01	1271.7	1277.5	1285.2	1285.2
2024-05-01	1271.7	1277.5	1285.2	1285.2
2024-04-01	1271.7	1277.5	1285.2	1285.2
2024-03-01	1271.7	1277.5	1285.2	1285.2
2024-02-01	1271.7	1277.5	1285.2	1285.2
2024-01-01	1271.7	1277.5	1285.2	1285.2
2023-12-01	1271.7	1277.5	1285.2	1285.2

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	2019 South African Junior Team Championships (U18B)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	1.5	Yes	Analysis
2	2019 D3 Team League (U19)	2019-07-20	2019-07-20	Standard	Tshwane (GTP)	3	3	1.5	Yes	Analysis
3	South African Junior Team Championships 2018 (U18B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis
4	2018 Gauteng League Final (U19)	2018-08-25	2018-08-25	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
5	2018 D3 Tshwane North Individual Chess Championships (U17+U19 Boys)	2018-03-10	2018-03-10	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
6	2018 Tshwane Registration Open Chess Tournament (B)	2018-01-27	2018-01-27	Standard	Tshwane (GTP)	5	4	1.5	Yes	Analysis
7	South African Junior Wildcard Championships 2017 (U16 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
8	South African Junior Team Championships 2017 (U16A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	4.5	Yes	Analysis

#	Games	Start				End
1	7	Tournament 2018 D3 Tshwane North Individual Chess Championships				Tournament 2018 Gauteng League Final
		date 2018-03-10	rnd 1	type Standard	result 1	date 2018-08-25	rnd 2	type Standard	result 0.5
		Opponent Mokobane, K (Koma Kevin)				Opponent Nkotwe, T (Tshepo)
2	4	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-18	rnd 5	type Standard	result 1
		Opponent Roux, D (Duval)				Opponent Abraham, K (Karan)
3	4	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Johnson, PH (Phillip-Hendri)				Opponent Nhlapo, X (Xolani)

#	Games	Start				End
1	7	Tournament 2018 D3 Tshwane North Individual Chess Championships				Tournament 2018 Gauteng League Final
		date 2018-03-10	rnd 1	type Standard	result 1	date 2018-08-25	rnd 2	type Standard	result 0.5
		Opponent Mokobane, K (Koma Kevin)				Opponent Nkotwe, T (Tshepo)
2	4	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-18	rnd 5	type Standard	result 1
		Opponent Roux, D (Duval)				Opponent Abraham, K (Karan)
3	4	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Johnson, PH (Phillip-Hendri)				Opponent Nhlapo, X (Xolani)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament 2018 D3 Tshwane North Individual Chess Championships				Tournament 2018 D3 Tshwane North Individual Chess Championships
		date 2018-03-10	rnd 1	type Standard	result 1	date 2018-03-10	rnd 4	type Standard	result 1
		Opponent Mokobane, K (Koma Kevin)				Opponent Moloto, N (Nnani)
2	4	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Johnson, PH (Phillip-Hendri)				Opponent Nhlapo, X (Xolani)
3	2	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Roux, D (Duval)				Opponent Jacobs, B (Brandon Lee)

#	Games	Start				End
1	4	Tournament 2018 D3 Tshwane North Individual Chess Championships				Tournament 2018 D3 Tshwane North Individual Chess Championships
		date 2018-03-10	rnd 1	type Standard	result 1	date 2018-03-10	rnd 4	type Standard	result 1
		Opponent Mokobane, K (Koma Kevin)				Opponent Moloto, N (Nnani)
2	4	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Johnson, PH (Phillip-Hendri)				Opponent Nhlapo, X (Xolani)
3	2	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Roux, D (Duval)				Opponent Jacobs, B (Brandon Lee)

No games found.

#	Games	Start				End

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	Vergottini ,R (Ryan)	1	1	425	1	1	425	0	0	0	0	0	0
1	Vergottini ,R (Ryan)	1	947.8	1372.8	1	947.8	1372.8	0	0	0	0	0	0
2	Ndala ,S (Sibusiso)	1	1	425	1	1	425	0	0	0	0	0	0
2	Ndala ,S (Sibusiso)	1	1189.4	1614.4	1	1186	1614.4	0	0	0	0	0	0
3	Datharam ,A (Aarti)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Datharam ,A (Aarti)	1	1606.1	1181.1	1	1605.9	1181.1	0	0	0	0	0	0
4	Nkotwe ,T (Tshepo)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
4	Nkotwe ,T (Tshepo)	1	1359	1359	1	1361.6	1359	0	0	0	0	0	0
5	De Beer ,T (Thinus)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	De Beer ,T (Thinus)	1	1281.5	1281.5	1	1285.3	1281.5	0	0	0	0	0	0
6	Mokwatedi ,K (Kgothatso)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Mokwatedi ,K (Kgothatso)	1	1215.7	1215.7	1	1215.7	1215.7	0	0	0	0	0	0
7	Abraham ,K (Karan)	1	1	425	1	1	425	0	0	0	0	0	0
7	Abraham ,K (Karan)	1	1286.7	1711.7	1	1287.7	1711.7	0	0	0	0	0	0
8	Rosso ,T (Tyler)	1	1	425	1	1	425	0	0	0	0	0	0
8	Rosso ,T (Tyler)	1	941	1366	1	941	1366	0	0	0	0	0	0
9	Saunders ,M (Matthew)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Saunders ,M (Matthew)	1	1368.3	943.3	1	1368.3	943.3	0	0	0	0	0	0
10	Duvenhage ,HW (Hendrik Wian)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Duvenhage ,HW (Hendrik Wian)	1	1250.5	825.5	1	1258.2	825.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Vermaak, JS (Jacobus Stephanus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms