Chess South Africa Ratings Database

PLAYER PAGE

Personal

Windfield, J (Jeremia)

Chess SA id

1000098856

FIDE id

Date of birth

2000-07-16 (Adult)

Gender

Male

Region

Namakwa (NCN)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-02-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1052.8	1070.4	1200	1062.4
Raw rating	1052.8	1070.4	1200	1062.4
Weighted rating	1052.8	1070.4	1200	1062.4
Weighted performance	143.6	137.2	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	204.5	199.4	165.8	201.7
Highest rating	1200 2018-01-01	1200 2018-01-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-01-01	1200 2018-01-01	1200 2024-02-01	1200 2018-01-01
Highest weighted rating	1200 2018-01-01	1200 2018-01-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-01-01	1200 2018-01-01	1200 2024-02-01	1200 2018-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1052.8	1070.4	1200	1062.4
Analysis
Rating	1052.8	1070.4	1200	1062.4
Raw rating	1052.8	1070.4	1200	1062.4
Weighted rating	1052.8	1070.4	1200
Weighted performance	143.6	137.2	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	204.5	199.4	165.8	201.7
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	1052.8	1070.4	1200	1062.4
New weighted rating	1052.8	1070.4	1200	1062.4
New weighted performance	137.7	131.1	0	0
Temp new rating	1052.8	1070.4	1200	1062.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1052.8	1070.4	1200	1062.4
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	30	24	6

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Namakwa (NCN)
Province	Northern Cape (NC)
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	30	7.5	25	-212.5	1181.7	969.2
Standard	24	7.5	31.25	-159.4	1149.2	989.8
Rapid	0	0	0	0	0	0
Blitz	6	0	0	-425	1311.9	886.9

Date	Main	Standard	Rapid	Blitz
2025-11-01	1052.8	1070.4	1200	1062.4
2025-09-30	1052.8	1070.4	1200	1062.4
2025-09-01	1052.8	1070.4	1200	1062.4
2025-08-01	1052.8	1070.4	1200	1062.4
2025-07-01	1052.8	1070.4	1200	1062.4
2025-06-01	1052.8	1070.4	1200	1062.4
2025-05-01	1052.8	1070.4	1200	1062.4
2025-04-01	1052.8	1070.4	1200	1062.4
2025-03-01	1052.8	1070.4	1200	1062.4
2025-02-01	1052.8	1070.4	1200	1062.4
2025-01-01	1052.8	1070.4	1200	1062.4
2024-12-01	1052.8	1070.4	1200	1062.4
2024-11-01	1052.8	1070.4	1200	1062.4
2024-10-01	1052.8	1070.4	1200	1062.4
2024-09-01	1052.8	1070.4	1200	1062.4
2024-08-01	1052.8	1070.4	1200	1062.4
2024-07-01	1052.8	1070.4	1200	1062.4
2024-09-01	1052.8	1070.4	1200	1062.4
2024-05-01	1052.8	1070.4	1200	1062.4
2024-04-01	1052.8	1070.4	1200	1062.4
2024-03-01	1052.8	1070.4	1200	1062.4
2024-02-01	1052.8	1070.4	1200	1062.4
2024-01-01	1052.8	1070.4	1200	1062.4
2023-12-01	1052.8	1070.4	1200	1062.4

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	Namakwa Skaak Ope 2019 (Ope)	2019-02-16	2019-02-16	Standard	Namakwa (NCN)	5	4	2.5	Yes	Analysis
2	South African Junior Blitz 2018 (U20)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	6	0	Yes	Analysis
3	South African Junior Team Championships 2018 (U20B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	1	Yes	Analysis
4	Northern Cape Closed Chess Championships 2018 (Adults & U20 Open)	2018-08-31	2018-09-01	Standard	Frances Baard (NCF)	5	4	0	Yes	Analysis
5	Namakwa Proewe 2018 (Ope)	2018-08-04	2018-08-04	Standard	Namakwa (NCN)	5	5	2	Yes	Analysis
6	Namakwa Distrik Skaak Proewe 2018 (O18 Seuns)	2018-03-17	2018-03-17	Standard	Namakwa (NCN)	5	4	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Skaak Ope 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-02-16	rnd 3	type Standard	result 0.5
		Opponent Brandt, L (Lywellen)				Opponent Prinsloo, J (Jan Abram)
2	2	Tournament Namakwa Distrik Skaak Proewe 2018				Tournament Namakwa Proewe 2018
		date 2018-03-17	rnd 5	type Standard	result 1	date 2018-08-04	rnd 1	type Standard	result 1
		Opponent Arendse, J (Joshua)				Opponent Cloete, D (Dudley)
3	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-17	rnd 3	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Shaba, R (Reneuwe)				Opponent Shaba, R (Reneuwe)

#	Games	Start				End
1	3	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Skaak Ope 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-02-16	rnd 3	type Standard	result 0.5
		Opponent Brandt, L (Lywellen)				Opponent Prinsloo, J (Jan Abram)
2	2	Tournament Namakwa Distrik Skaak Proewe 2018				Tournament Namakwa Proewe 2018
		date 2018-03-17	rnd 5	type Standard	result 1	date 2018-08-04	rnd 1	type Standard	result 1
		Opponent Arendse, J (Joshua)				Opponent Cloete, D (Dudley)
3	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-17	rnd 3	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Shaba, R (Reneuwe)				Opponent Shaba, R (Reneuwe)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Skaak Ope 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-02-16	rnd 2	type Standard	result 1
		Opponent Brandt, L (Lywellen)				Opponent Rutledge, R (Roderique)
2	2	Tournament Namakwa Distrik Skaak Proewe 2018				Tournament Namakwa Proewe 2018
		date 2018-03-17	rnd 5	type Standard	result 1	date 2018-08-04	rnd 1	type Standard	result 1
		Opponent Arendse, J (Joshua)				Opponent Cloete, D (Dudley)
3	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-17	rnd 3	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Shaba, R (Reneuwe)				Opponent Shaba, R (Reneuwe)

#	Games	Start				End
1	2	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Skaak Ope 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-02-16	rnd 2	type Standard	result 1
		Opponent Brandt, L (Lywellen)				Opponent Rutledge, R (Roderique)
2	2	Tournament Namakwa Distrik Skaak Proewe 2018				Tournament Namakwa Proewe 2018
		date 2018-03-17	rnd 5	type Standard	result 1	date 2018-08-04	rnd 1	type Standard	result 1
		Opponent Arendse, J (Joshua)				Opponent Cloete, D (Dudley)
3	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-17	rnd 3	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Shaba, R (Reneuwe)				Opponent Shaba, R (Reneuwe)

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	Rutledge ,R (Roderique)	2	1	0	2	1	0	0	0	0	0	0	0
1	Rutledge ,R (Roderique)	2	1215.9	1215.9	2	1218.7	1215.9	0	0	0	0	0	0
2	Arendse ,J (Joshua)	2	2	425	2	2	425	0	0	0	0	0	0
2	Arendse ,J (Joshua)	2	1191.1	1616.1	2	1189.2	1616.1	0	0	0	0	0	0
3	Kolisi ,M (Mbasa)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Kolisi ,M (Mbasa)	1	948.6	523.6	1	942.3	523.6	0	0	0	0	0	0
4	Nkosi ,A (Adolph)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Nkosi ,A (Adolph)	1	1433.1	1008.1	1	1420.9	1008.1	0	0	0	0	0	0
5	Maier ,R (Ralph)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Maier ,R (Ralph)	1	1223.2	798.2	1	1228	798.2	0	0	0	0	0	0
6	Engelbrecht ,A (Abrushane)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Engelbrecht ,A (Abrushane)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Barnard ,N (Nico)	1	1	425	1	1	425	0	0	0	0	0	0
7	Barnard ,N (Nico)	1	563.8	988.8	1	559.6	988.8	0	0	0	0	0	0
8	Mostert ,A (Altus)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Mostert ,A (Altus)	1	1284.3	859.3	1	1301.6	859.3	0	0	0	0	0	0
9	Nolan ,UR (Ulrich Richard)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Nolan ,UR (Ulrich Richard)	1	1105.2	680.2	1	1105.4	680.2	0	0	0	0	0	0
10	Prinsloo ,J (Jan Abram)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Prinsloo ,J (Jan Abram)	1	1257.9	1257.9	1	1268.4	1257.9	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

Windfield, J (Jeremia)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms