Chess South Africa Ratings Database

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Personal

Woolf, J (Jessika)

Chess SA id

2100108079

FIDE id

Date of birth

2010-08-18 (U16)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1234.5

Item	Main	Standard	Rapid	Blitz
Rating	1323.3	1317.6	1323.7	1200
Raw rating	1277.1	1262.5	1323.7	1200
Weighted rating	1323.3	1317.6	1314.8	1200
Weighted performance	1215.7	1208.9	1086.1	0
Floor	849.7	876.3	823.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	148.6	151.7	139	165.8
Highest rating	1387.4 2023-09-01	1376.3 2024-04-01	1329.9 2023-09-01	1200 2018-10-01
Highest raw rating	1349.7 2024-08-01	1376.3 2024-04-01	1323.7 2024-08-01	1200 2024-03-01
Highest weighted rating	1349.7 2024-10-01	1376.3 2024-10-01	1308.4 2025-08-01	1200 2018-10-01
Highest weighted performance	1387.4 2025-04-01	1298.3 2024-02-01	1329.9 2023-09-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-4.1	-5	0	0
New rating	1319.2	1312.6	1323.7	1200
Analysis
Rating	1323.3	1317.6	1323.7	1200
Raw rating	1277.1	1262.5	1323.7	1200
Weighted rating	1323.3	1317.6	1314.8
Weighted performance	1215.7	1208.9	1086.1
K-factor	36	36	36	36
Floor	849.7	876.3	823.7	700
Max/Min rating change allowed	148.6	151.7	139	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	1277.1	1262.5	1323.7	1200
New weighted rating	1319.2	1312.6	1316.6	1200
New weighted performance	1208.5	1201.7	1078.3	0
Temp new rating	1319.2	1312.6	1323.7	1200
Temp new rating +/-	-4.1	-5	0	0
Final new rating +/-	-4.1	-5	0	0
New rating	1319.2	1312.6	1323.7	1200
New K-factor	36	36	36	36
New floor	849.7	876.3	823.7	700

Item	Main	Standard	Rapid
	0	0	0
	48	48	0
	64	47	17
	25	12	13
	23	12	11
	0	0	0
History	199	147	52

Games since
	Main 112	Standard 95		Rapid 17		Blitz 0
Gender	Female
Age group	U16
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3039		989		413
Female	610		243		82
U16	483		164		57
U16 Female	124		49		16
Standard
	RSA		Province		Region
Overall	3007		863		378
Female	591		220		82
U16	478		155		54
U16 Female	118		47		16
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	48	19.5	40.62	-79.7	1334.4	1254.7
Standard	48	19.5	40.62	-79.7	1334.4	1254.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	199	99.5	50	0	1273.2	1273.2
Standard	147	70	47.62	-20.2	1283.3	1263.1
Rapid	52	29.5	56.73	57.2	1244.7	1301.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1277.1	1262.5	1323.7	1200
2025-09-30	1317.7	1308.6	1323.7	1200
2025-09-01	1317.7	1308.6	1323.7	1200
2025-08-01	1330.1	1326	1323.7	1200
2025-07-01	1330.1	1325.9	1323.7	1200
2025-06-01	1329.6	1325.2	1323.7	1200
2025-05-01	1324.3	1319.6	1323.7	1200
2025-04-01	1347.3	1345.5	1323.7	1200
2025-03-01	1335.2	1333	1323.7	1200
2025-02-01	1321.3	1313.2	1323.7	1200
2025-01-01	1300.1	1275	1323.7	1200
2024-12-01	1299.8	1279	1323.7	1200
2024-11-01	1305.2	1288.4	1323.7	1200
2024-10-01	1349.7	1339.9	1323.7	1200
2024-09-01	1349.7	1339.9	1323.7	1200
2024-08-01	1349.7	1339.9	1323.7	1200
2024-07-01	1323.9	1339.9	1243.8	1200
2024-09-01	1343.3	1376.3	1243.8	1200
2024-05-01	1343.3	1376.3	1243.8	1200
2024-04-01	1343.3	1376.3	1243.8	1200
2024-03-01	1308.5	1327	1243.8	1200
2024-02-01	1343.9	1325.9	1276.2	1200
2024-01-01	1343.9	1325.9	1276.2	1200
2023-12-01	1343.9	1325.9	1276.2	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 (B)	2025-10-17	2025-10-18	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
2	UCT Open Chess Championship 2025 (Intermediate)	2025-10-11	2025-10-12	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
3	Cape Town Metro North Top Schools 2025 (U15)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U15 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	2.5	Yes	Analysis
5	South African Junior Closed Chess Championships 2025 (U16 Girls)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	1.5	Yes	Analysis
6	CT Metro Schools Individual Closed 2025 (U15 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
7	CT Metro North Schools Chess Individual Trials 2025 (U15 Girls)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	5	3	Yes	Analysis
8	2025 Kraaifontein Open Chess Championships (Advanced)	2025-01-04	2025-01-05	Standard	Cape Town (WCT)	6	6	1.5	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 (B)	2025-10-17	2025-10-18	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
2	UCT Open Chess Championship 2025 (Intermediate)	2025-10-11	2025-10-12	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
3	Cape Town Metro North Top Schools 2025 (U15)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U15 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	2.5	Yes	Analysis
5	South African Junior Closed Chess Championships 2025 (U16 Girls)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	1.5	Yes	Analysis
6	CT Metro Schools Individual Closed 2025 (U15 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
7	CT Metro North Schools Chess Individual Trials 2025 (U15 Girls)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	5	3	Yes	Analysis
8	2025 Kraaifontein Open Chess Championships (Advanced)	2025-01-04	2025-01-05	Standard	Cape Town (WCT)	6	6	1.5	Yes	Analysis
9	Mzansi Interprovincial Youth Chess Championships 2024 (U16 Girls Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	3.5	Yes	Analysis
10	2nd Strategize To Win Round-Robin Tournament ACL 2024 (F)	2024-12-07	2024-12-07	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
11	Paarl Boys' High Chess Festival 2024	2024-10-04	2024-10-05	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
12	UCT Open Chess Championship 2024 (Intermediate)	2024-10-12	2024-10-13	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
13	CT District North Top Schools 2024 (U15 Mixed)	2024-07-27	2024-07-27	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
14	Curro Durbanville Chess Rapid Open 2024 (Intermediate)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
15	Cape Town Chess Federation Closed Chess Championships 2024 (U16)	2024-06-15	2024-06-16	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
16	Western Cape Inter Region Cup 2024 (U14 Girls)	2024-03-23	2024-03-24	Standard	Overberg (WOS)	5	0	0	No	Analysis
17	Western Cape HS Individuals Championship 2024 (U15 Girls)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	4	Yes	Analysis
18	Cape Town Metro Schools Chess Closed Individuals 2024 (U15 Girls)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
19	North District School Trials 2024 (U15 Girls)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
20	Cape of Good Hope Open Chess Tournament 2024 (U14)	2024-02-17	2024-02-17	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
21	Western Cape Closed Championship 2023 (U14)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
22	Western Cape Top Schools 2023 (U13 Girls)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	5.5	Yes	Analysis
23	Curro Durbanville Chess Open Rapid 2023 (U14)	2023-07-15	2023-07-15	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
24	CT Metro District North Top Schools Chess 2023 (U13 Girls)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	1	1	1	Yes	Analysis
25	WP Closed 2023 (U14)	2023-06-16	2023-06-17	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
26	Metro Rapid 2022 (U13 Girls)	2022-10-22	2022-10-22	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
27	Western Cape Schools 2022 (U13 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
28	Metro WP Schools Chess Trials 2022 (U13 Girls)	2022-04-22	2022-04-23	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
29	District North 2022 (U13)	2022-03-05	2022-03-05	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
30	2020 Metro Trials (U11 Girls)	2020-03-13	2020-03-14	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
31	Metro North Individual Trials 2020 (U11)	2020-02-07	2020-02-08	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
32	Curro Durbanville Chess Tournament 2019 (Junior)	2019-08-24	2019-08-24	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
33	2019 WP Youth Open (D)	2019-07-13	2019-07-13	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
34	Stellenberg Youth Chess Championship 2019 (E)	2019-05-01	2019-05-01	Standard	Cape Town (WCT)	5	4	0.5	Yes	Analysis
35	2019 Western Province Open (Junior)	2019-05-25	2019-05-25	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
36	Metro School Chess Closed Individual Trials 2019 (U7+U9 Girls)	2019-03-01	2019-03-02	Standard	Cape Town (WCT)	5	4	1.5	Yes	Analysis
37	District North Schools Chess Trials 2019 (U9)	2019-01-25	2019-01-26	Standard	Cape Town (WCT)	5	4	2	Yes	Analysis

#	Games	Start				End
1	9	Tournament Curro Durbanville Chess Open Rapid 2023				Tournament Western Cape Top Schools 2023
		date 2023-07-15	rnd 5	type Rapid	result 1	date 2023-09-03	rnd 6	type Standard	result 1
		Opponent Claassen, U (Uthan)				Opponent Grobler, B (Blyde)
2	7	Tournament Curro Durbanville Chess Tournament 2019				Tournament Metro North Individual Trials 2020
		date 2019-08-24	rnd 3	type Rapid	result 0.5	date 2020-02-08	rnd 3	type Standard	result 1
		Opponent Truter, J (Johannes)				Opponent Strydom, MJ (Matthys)
3	6	Tournament CT District North Top Schools 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-07-27	rnd 4	type Rapid	result 1	date 2024-10-05	rnd 4	type Standard	result 0.5
		Opponent Basa, L (Lutho)				Opponent Smit, M (Matthys)

#	Games	Start				End
1	7	Tournament WP Closed 2023				Tournament Western Cape Top Schools 2023
		date 2023-06-17	rnd 6	type Standard	result 1	date 2023-09-03	rnd 6	type Standard	result 1
		Opponent Devanunthan, N (Nivash)				Opponent Grobler, B (Blyde)
2	5	Tournament CT Metro Schools Individual Closed 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-03-01	rnd 2	type Standard	result 1	date 2025-03-02	rnd 6	type Standard	result 1
		Opponent Paliso, S (Simbulokuhle)				Opponent Leenderts, S (Shanique)
3	4	Tournament Paarl Boys' High Chess Festival 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-10-04	rnd 1	type Standard	result 1	date 2024-10-05	rnd 4	type Standard	result 0.5
		Opponent Pape, J (Joshua)				Opponent Smit, M (Matthys)

#	Games	Start				End
1	5	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament CT District North Top Schools 2024
		date 2024-07-13	rnd 4	type Rapid	result 1	date 2024-07-27	rnd 2	type Rapid	result 1
		Opponent Rautenbach, M (Michael)				Opponent De Beer, A (Arno)
2	5	Tournament Curro Durbanville Chess Tournament 2019				Tournament District North 2022
		date 2019-08-24	rnd 3	type Rapid	result 0.5	date 2022-03-05	rnd 1	type Rapid	result 1
		Opponent Truter, J (Johannes)				Opponent Meyer, K (Kylo)
3	3	Tournament Curro Durbanville Chess Open Rapid 2023				Tournament CT Metro District North Top Schools Chess 2023
		date 2023-07-15	rnd 5	type Rapid	result 1	date 2023-07-29	rnd 1	type Rapid	result 1
		Opponent Claassen, U (Uthan)				Opponent Vahed, H (Haseena)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Curro Durbanville Chess Tournament 2019				Tournament Metro North Individual Trials 2020
		date 2019-08-24	rnd 4	type Rapid	result 1	date 2020-02-08	rnd 3	type Standard	result 1
		Opponent Goliath, V (Valentino)				Opponent Strydom, MJ (Matthys)
2	4	Tournament CT District North Top Schools 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-07-27	rnd 4	type Rapid	result 1	date 2024-10-04	rnd 2	type Standard	result 1
		Opponent Basa, L (Lutho)				Opponent Fortune, A (Alexander)
3	4	Tournament North District School Trials 2024				Tournament Cape of Good Hope Open Chess Tournament 2024
		date 2024-02-03	rnd 3	type Standard	result 1	date 2024-02-17	rnd 1	type Rapid	result 1
		Opponent Mani, S (Sivenathi)				Opponent Mhlatywa, I (Inathi)

#	Games	Start				End
1	4	Tournament North District School Trials 2024				Tournament Cape Town Metro Schools Chess Closed Individuals 2024
		date 2024-02-03	rnd 3	type Standard	result 1	date 2024-03-02	rnd 1	type Standard	result 1
		Opponent Mani, S (Sivenathi)				Opponent Zinto, N (Nimange)
2	4	Tournament WP Closed 2023				Tournament Western Cape Top Schools 2023
		date 2023-06-17	rnd 6	type Standard	result 1	date 2023-09-02	rnd 3	type Standard	result 1
		Opponent Devanunthan, N (Nivash)				Opponent Spinnler, E (Elizabeth Hendrina)
3	3	Tournament Western Cape HS Individuals Championship 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-21	rnd 3	type Standard	result 1	date 2024-03-22	rnd 5	type Standard	result 1
		Opponent Truter, M (Meike)				Opponent Ebrahim, N (Nabeelah)

#	Games	Start				End
1	4	Tournament Curro Durbanville Chess Tournament 2019				Tournament District North 2022
		date 2019-08-24	rnd 4	type Rapid	result 1	date 2022-03-05	rnd 1	type Rapid	result 1
		Opponent Goliath, V (Valentino)				Opponent Meyer, K (Kylo)
2	3	Tournament 2019 Western Province Open				Tournament 2019 Western Province Open
		date 2019-05-25	rnd 2	type Rapid	result 1	date 2019-05-25	rnd 4	type Rapid	result 1
		Opponent Smeda, JT (Joshua Trent)				Opponent Buys, B (Boaz)
3	2	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 4	type Rapid	result 1	date 2024-07-27	rnd 5	type Rapid	result 1
		Opponent Basa, L (Lutho)				Opponent Van Staden, C (Cadin)

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	Grove ,E (Emily)	5	0	-425	4	0	-425	1	0	-425	0	0	0
1	Grove ,E (Emily)	5	1500.1	1075.1	4	1524.2	1075.1	1	1203.6	1075.1	0	0	0
2	Ebrahim ,N (Nabeelah)	5	1	-255	3	1	-141.7	2	0	-425	0	0	0
2	Ebrahim ,N (Nabeelah)	5	1407.9	1152.9	3	1338.8	1266.2	2	1426.4	982.9	0	0	0
3	Smith ,S (Shiloh)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	Smith ,S (Shiloh)	3	1456.3	1031.3	3	1484.1	1031.3	0	0	0	0	0	0
4	Rubusana ,N (Nina)	3	3	425	2	2	425	1	1	425	0	0	0
4	Rubusana ,N (Nina)	3	1188	1613	2	1188	1613	1	1270.1	1613	0	0	0
5	Nesi ,S (Simile)	2	2	425	2	2	425	0	0	0	0	0	0
5	Nesi ,S (Simile)	2	1118.9	1543.9	2	1160.6	1543.9	0	0	0	0	0	0
6	Snijders ,E (Emma)	2	1	0	2	1	0	0	0	0	0	0	0
6	Snijders ,E (Emma)	2	1153.4	1153.4	2	1149.4	1153.4	0	0	0	0	0	0
7	Matima ,L (Lee-Anne)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Matima ,L (Lee-Anne)	2	1443.5	1018.5	2	1449.8	1018.5	0	0	0	0	0	0
8	Osborne ,H (Hannah)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Osborne ,H (Hannah)	2	1232.9	807.9	2	1188.9	807.9	0	0	0	0	0	0
9	Johannes ,R (Relecia)	2	2	425	1	1	425	1	1	425	0	0	0
9	Johannes ,R (Relecia)	2	1144.4	1569.4	1	1130.3	1569.4	1	1200	1569.4	0	0	0
10	Nel ,C (Clea)	2	1.5	212.5	1	0.5	0	1	1	425	0	0	0
10	Nel ,C (Clea)	2	1149.1	1361.6	1	1112.4	1149.1	1	1183.6	1574.1	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Woolf, J (Jessika)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms