Chess South Africa Ratings Database

PLAYER PAGE

Personal

Orwin, J (Jennifer)

Chess SA id

2100134369

FIDE id

Date of birth

2010-05-17 (U16)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-04-06

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1505.4	1509.1	1274.2	1200
Raw rating	1505.4	1509.1	1274.2	1200
Weighted rating	1504.8	1508.2	1273.2	1200
Weighted performance	1165.5	1159.8	0	0
Floor	1007.8	1009.1	774.2	700
K-factor	32	32	36	36
Min/Max rating change allowed	107.3	106.8	149.2	165.8
Highest rating	1510.1 2023-05-01	1509.1 2024-04-01	1344.3 2022-10-01	1200 2018-10-01
Highest raw rating	1507.8 2024-04-01	1509.1 2024-04-01	1274.2 2024-05-01	1200 2024-03-01
Highest weighted rating	1503.5 2025-08-01	1506.6 2025-08-01	1271.9 2025-08-01	1200 2018-10-01
Highest weighted performance	1510.1 2023-05-01	1499 2023-05-01	1344.3 2022-10-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1505.4	1509.1	1274.2	1200
Analysis
Rating	1505.4	1509.1	1274.2	1200
Raw rating	1505.4	1509.1	1274.2	1200
Weighted rating	1504.8	1508.2	1273.2
Weighted performance	1165.5	1159.8	0
K-factor	32	32	36	36
Floor	1007.8	1009.1	774.2	700
Max/Min rating change allowed	107.3	106.8	149.2	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	1505.4	1509.1	1274.2	1200
New weighted rating	1505	1508.6	1273.6	1200
New weighted performance	1156.4	1150.7	0	0
Temp new rating	1505.4	1509.1	1274.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1505.4	1509.1	1274.2	1200
New K-factor	32	32	36	36
New floor	1007.8	1009.1	774.2	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	15	12	3
	17	17	0
	23	12	11
	0	0	0
History	55	41	14

Games since
	Main 15	Standard 12		Rapid 3		Blitz 0
Gender	Female
Age group	U16
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-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	55	43	78.18	239.5	1277.8	1517.3
Standard	41	33	80.49	259.1	1290.4	1549.5
Rapid	14	10	71.43	182.1	1240.9	1423
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1505.4	1509.1	1274.2	1200
2025-09-30	1505.4	1509.1	1274.2	1200
2025-09-01	1505.4	1509.1	1274.2	1200
2025-08-01	1505.4	1509.1	1274.2	1200
2025-07-01	1505.4	1509.1	1274.2	1200
2025-06-01	1505.4	1509.1	1274.2	1200
2025-05-01	1505.4	1509.1	1274.2	1200
2025-04-01	1505.4	1509.1	1274.2	1200
2025-03-01	1505.4	1509.1	1274.2	1200
2025-02-01	1505.4	1509.1	1274.2	1200
2025-01-01	1505.4	1509.1	1274.2	1200
2024-12-01	1505.4	1509.1	1274.2	1200
2024-11-01	1505.4	1509.1	1274.2	1200
2024-10-01	1505.4	1509.1	1274.2	1200
2024-09-01	1505.4	1509.1	1274.2	1200
2024-08-01	1505.4	1509.1	1274.2	1200
2024-07-01	1505.4	1509.1	1274.2	1200
2024-09-01	1505.4	1509.1	1274.2	1200
2024-05-01	1505.4	1509.1	1274.2	1200
2024-04-01	1507.8	1509.1	1255.1	1200
2024-03-01	1484.7	1482.5	1255.1	1200
2024-02-01	1484.7	1482.5	1255.1	1200
2024-01-01	1484.7	1482.5	1255.1	1200
2023-12-01	1484.7	1482.5	1255.1	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	Cape Town Junior League Qualifier 2024 (U15 Open)	2024-04-06	2024-04-06	Rapid	Cape Town (WCT)	6	3	2	Yes	Analysis
2	Western Cape HS Individuals Championship 2024 (U15 Girls)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	4.5	Yes	Analysis
3	Cape Town Metro Schools Chess Closed Individuals 2024 (U15 Girls)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
4	Western Cape PS Individuals 2023 (U13 Girls)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
5	Cape Town Metro Schools Chess Closed Individuals 2023 (U13 Girls)	2023-02-03	2023-03-04	Standard	Cape Town (WCT)	6	5	3.5	Yes	Analysis
6	District East Schools Chess Individual Trials 2023 (U13 Girls)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	6	Yes	Analysis
7	Metro Rapid 2022 (U13 Girls)	2022-10-22	2022-10-22	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
8	Western Cape Schools 2022 (U13 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	5	Yes	Analysis
9	Metro WP Schools Chess Trials 2022 (U13 Girls)	2022-04-22	2022-04-23	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
10	2022 East Dist Individuals (U13)	2022-03-12	2022-03-12	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis

#	Games	Start				End
1	11	Tournament Metro Rapid 2022				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2022-10-22	rnd 4	type Rapid	result 1	date 2023-03-04	rnd 4	type Standard	result 1
		Opponent Dyantyi, E (Enathi)				Opponent Rubusana, N (Nina)
2	7	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-03	rnd 5	type Standard	result 1	date 2024-03-22	rnd 5	type Standard	result 0.5
		Opponent Nhlapo, P (Philasande)				Opponent Van Heerden, H (Hannah Rose)
3	6	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-03-04	rnd 6	type Standard	result 0.5	date 2023-05-06	rnd 5	type Standard	result 1
		Opponent Coetzee, K (Kara)				Opponent Nieuwoudt, N (Noreht)

#	Games	Start				End
1	12	Tournament Western Cape Schools 2022				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2022-05-28	rnd 4	type Standard	result 1	date 2023-03-04	rnd 4	type Standard	result 1
		Opponent Kruger, R (Riasha)				Opponent Rubusana, N (Nina)
2	7	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-03	rnd 5	type Standard	result 1	date 2024-03-22	rnd 5	type Standard	result 0.5
		Opponent Nhlapo, P (Philasande)				Opponent Van Heerden, H (Hannah Rose)
3	6	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-03-04	rnd 6	type Standard	result 0.5	date 2023-05-06	rnd 5	type Standard	result 1
		Opponent Coetzee, K (Kara)				Opponent Nieuwoudt, N (Noreht)

#	Games	Start				End
1	4	Tournament Metro Rapid 2022				Tournament Cape Town Junior League Qualifier 2024
		date 2022-10-22	rnd 4	type Rapid	result 1	date 2024-04-06	rnd 3	type Rapid	result 1
		Opponent Dyantyi, E (Enathi)				Opponent Luh, A (Ammar)
2	3	Tournament 2022 East Dist Individuals				Tournament Metro Rapid 2022
		date 2022-03-12	rnd 6	type Rapid	result 1	date 2022-10-22	rnd 2	type Rapid	result 1
		Opponent Joni, A (Ayakhe)				Opponent Reid, H (Hannah)
3	3	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 1	type Rapid	result 1	date 2022-03-12	rnd 3	type Rapid	result 1
		Opponent Akuetteh, D (David)				Opponent Van Schaik, K (Kayla)

No games found.

#	Games	Start				End

#	Games	Start				End
1	11	Tournament Metro Rapid 2022				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2022-10-22	rnd 4	type Rapid	result 1	date 2023-03-04	rnd 4	type Standard	result 1
		Opponent Dyantyi, E (Enathi)				Opponent Rubusana, N (Nina)
2	6	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-03	rnd 5	type Standard	result 1	date 2024-03-21	rnd 4	type Standard	result 1
		Opponent Nhlapo, P (Philasande)				Opponent Fumanisa, L (Lisokhanya)
3	6	Tournament Metro WP Schools Chess Trials 2022				Tournament Western Cape Schools 2022
		date 2022-04-23	rnd 3	type Standard	result 1	date 2022-05-28	rnd 2	type Standard	result 1
		Opponent Nomtayi, M (Mbalentle)				Opponent Engelbrecht, J (Jane)

#	Games	Start				End
1	12	Tournament Western Cape Schools 2022				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2022-05-28	rnd 4	type Standard	result 1	date 2023-03-04	rnd 4	type Standard	result 1
		Opponent Kruger, R (Riasha)				Opponent Rubusana, N (Nina)
2	6	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-03	rnd 5	type Standard	result 1	date 2024-03-21	rnd 4	type Standard	result 1
		Opponent Nhlapo, P (Philasande)				Opponent Fumanisa, L (Lisokhanya)
3	6	Tournament Metro WP Schools Chess Trials 2022				Tournament Western Cape Schools 2022
		date 2022-04-23	rnd 3	type Standard	result 1	date 2022-05-28	rnd 2	type Standard	result 1
		Opponent Nomtayi, M (Mbalentle)				Opponent Engelbrecht, J (Jane)

#	Games	Start				End
1	4	Tournament Metro Rapid 2022				Tournament Cape Town Junior League Qualifier 2024
		date 2022-10-22	rnd 4	type Rapid	result 1	date 2024-04-06	rnd 3	type Rapid	result 1
		Opponent Dyantyi, E (Enathi)				Opponent Luh, A (Ammar)
2	3	Tournament 2022 East Dist Individuals				Tournament Metro Rapid 2022
		date 2022-03-12	rnd 6	type Rapid	result 1	date 2022-10-22	rnd 2	type Rapid	result 1
		Opponent Joni, A (Ayakhe)				Opponent Reid, H (Hannah)
3	3	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 1	type Rapid	result 1	date 2022-03-12	rnd 3	type Rapid	result 1
		Opponent Akuetteh, D (David)				Opponent Van Schaik, K (Kayla)

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	Hanise ,A (Avile)	2	2	425	2	2	425	0	0	0	0	0	0
1	Hanise ,A (Avile)	2	1175.9	1600.9	2	1180	1600.9	0	0	0	0	0	0
2	Coetzee ,K (Kara)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
2	Coetzee ,K (Kara)	2	1384.2	1171.7	2	1340.4	1171.7	0	0	0	0	0	0
3	Williamson ,S (Sarah)	2	2	425	2	2	425	0	0	0	0	0	0
3	Williamson ,S (Sarah)	2	1154.7	1579.7	2	1117.1	1579.7	0	0	0	0	0	0
4	Brink ,S (Samantha)	2	1	0	2	1	0	0	0	0	0	0	0
4	Brink ,S (Samantha)	2	1218.8	1218.8	2	1238.8	1218.8	0	0	0	0	0	0
5	Nieuwoudt ,N (Noreht)	2	2	425	2	2	425	0	0	0	0	0	0
5	Nieuwoudt ,N (Noreht)	2	1359.8	1784.8	2	1327.3	1784.8	0	0	0	0	0	0
6	Kruger ,R (Riasha)	2	2	425	2	2	425	0	0	0	0	0	0
6	Kruger ,R (Riasha)	2	1347	1772	2	1346.1	1772	0	0	0	0	0	0
7	Van Heerden ,H (Hannah Rose)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
7	Van Heerden ,H (Hannah Rose)	2	1507.4	1719.9	2	1491.9	1719.9	0	0	0	0	0	0
8	Smith ,S (Shiloh)	2	2	425	2	2	425	0	0	0	0	0	0
8	Smith ,S (Shiloh)	2	1295.7	1720.7	2	1226.4	1720.7	0	0	0	0	0	0
9	Joya ,I (Imkhita)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Joya ,I (Imkhita)	2	1530.3	1105.3	2	1537.6	1105.3	0	0	0	0	0	0
10	Liu ,A (Ava)	2	1	0	1	0	-425	1	1	425	0	0	0
10	Liu ,A (Ava)	2	1168.2	1168.2	1	1200	743.2	1	1207.2	1593.2	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Orwin, J (Jennifer)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms