Chess South Africa Ratings Database

PLAYER PAGE

Personal

Willemse, J (Jadiah)

Chess SA id

2100131827

FIDE id

Date of birth

2010-01-21 (U16)

Gender

Female

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-11-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1127.6	1140.5	1123.2	1200
Raw rating	1127.6	1140.5	1123.2	1200
Weighted rating	1126.6	1138.5	1121.4	1200
Weighted performance	0	0	0	0
Floor	712	711.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	183.8	180.5	185	165.8
Highest rating	1294.8 2020-02-01	1272 2020-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1212 2020-03-01	1211.2 2020-03-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1212 2020-03-01	1211.2 2022-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1294.8 2020-02-01	1272 2020-02-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1127.6	1140.5	1123.2	1200
Analysis
Rating	1127.6	1140.5	1123.2	1200
Raw rating	1127.6	1140.5	1123.2	1200
Weighted rating	1126.6	1138.5	1121.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	712	711.2	700	700
Max/Min rating change allowed	183.8	180.5	185	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	1127.6	1140.5	1123.2	1200
New weighted rating	1126.6	1138.4	1121.8	1200
New weighted performance	0	0	0	0
Temp new rating	1127.6	1140.5	1123.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1127.6	1140.5	1123.2	1200
New K-factor	36	36	36	36
New floor	712	711.2	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	6	4	2
	0	0	0
	6	6	0
	0	0	0
History	19	13	6

Games since
	Main 6	Standard 4		Rapid 2		Blitz 0
Gender	Female
Age group	U16
Region	West Coast (WCU)
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	19	5.5	28.95	-178.9	1164.4	985.4
Standard	13	4	30.77	-163.5	1176.4	1012.9
Rapid	6	1.5	25	-212.5	1138.5	926
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1127.6	1140.5	1123.2	1200
2025-09-01	1127.6	1140.5	1123.2	1200
2025-08-01	1127.6	1140.5	1123.2	1200
2025-07-01	1127.6	1140.5	1123.2	1200
2025-06-01	1127.6	1140.5	1123.2	1200
2025-05-01	1127.6	1140.5	1123.2	1200
2025-04-01	1127.6	1140.5	1123.2	1200
2025-03-01	1127.6	1140.5	1123.2	1200
2025-02-01	1125.3	1136.9	1123.2	1200
2025-01-01	1090.5	1082.3	1123.2	1200
2024-12-01	1090.5	1082.3	1123.2	1200
2024-11-01	1139.5	1153.2	1123.2	1200
2024-10-01	1139.5	1153.2	1123.2	1200
2024-09-01	1139.5	1153.2	1123.2	1200
2024-08-01	1139.5	1153.2	1123.2	1200
2024-07-01	1133.7	1153.2	1111.2	1200
2024-06-01	1133.7	1153.2	1111.2	1200
2024-08-01	1133.7	1153.2	1111.2	1200
2024-04-01	1133.7	1153.2	1111.2	1200
2024-03-01	1133.7	1153.2	1111.2	1200
2024-02-01	1133.7	1153.2	1111.2	1200
2024-01-01	1133.7	1153.2	1111.2	1200
2023-12-01	1133.7	1153.2	1111.2	1200
2023-11-01	1133.7	1153.2	1111.2	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	PR Booyse Standard Tournament 2024 (Open)	2024-11-02	2024-11-02	Standard	West Coast (WCU)	5	4	0	Yes	Analysis
2	Pedro Booyse Annual Rapid 2024 (Open)	2024-07-06	2024-07-06	Rapid	West Coast (WCU)	5	2	1	Yes	Analysis
3	West Coast Schools Prestige 2022 (U13 Girls)	2022-02-19	2022-02-19	Standard	West Coast (WCU)	6	6	2	Yes	Analysis
4	West Coast Schools Prestige 2020 (U11 Girls)	2020-03-07	2020-03-07	Rapid	West Coast (WCU)	5	4	0.5	Yes	Analysis
5	Bo-Weskus Skole Prestige 2020 (O11 Dogters)	2020-02-15	2020-02-15	Standard	West Coast (WCU)	6	3	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament West Coast Schools Prestige 2020				Tournament West Coast Schools Prestige 2022
		date 2020-03-07	rnd 5	type Rapid	result 0.5	date 2022-02-19	rnd 2	type Standard	result 1
		Opponent Van Rhyn, J (Jordan)				Opponent Fredericks, M (Meniche)
2	2	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 1	type Standard	result 1	date 2020-02-15	rnd 2	type Standard	result 1
		Opponent Kotze, A (Audrey-Ann)				Opponent Zuze, S (Sasha)
3	1	Tournament Pedro Booyse Annual Rapid 2024				Tournament Pedro Booyse Annual Rapid 2024
		date 2024-07-06	rnd 2	type Rapid	result 1	date 2024-07-06	rnd 2	type Rapid	result 1
		Opponent Swarts, F (Faqir)				Opponent Swarts, F (Faqir)

#	Games	Start				End
1	2	Tournament West Coast Schools Prestige 2022				Tournament West Coast Schools Prestige 2022
		date 2022-02-19	rnd 1	type Standard	result 1	date 2022-02-19	rnd 2	type Standard	result 1
		Opponent Philander, A (Alex)				Opponent Fredericks, M (Meniche)
2	2	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 1	type Standard	result 1	date 2020-02-15	rnd 2	type Standard	result 1
		Opponent Kotze, A (Audrey-Ann)				Opponent Zuze, S (Sasha)

#	Games	Start				End
1	1	Tournament Pedro Booyse Annual Rapid 2024				Tournament Pedro Booyse Annual Rapid 2024
		date 2024-07-06	rnd 2	type Rapid	result 1	date 2024-07-06	rnd 2	type Rapid	result 1
		Opponent Swarts, F (Faqir)				Opponent Swarts, F (Faqir)
2	1	Tournament West Coast Schools Prestige 2020				Tournament West Coast Schools Prestige 2020
		date 2020-03-07	rnd 5	type Rapid	result 0.5	date 2020-03-07	rnd 5	type Rapid	result 0.5
		Opponent Van Rhyn, J (Jordan)				Opponent Van Rhyn, J (Jordan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament West Coast Schools Prestige 2022				Tournament West Coast Schools Prestige 2022
		date 2022-02-19	rnd 1	type Standard	result 1	date 2022-02-19	rnd 2	type Standard	result 1
		Opponent Philander, A (Alex)				Opponent Fredericks, M (Meniche)
2	2	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 1	type Standard	result 1	date 2020-02-15	rnd 2	type Standard	result 1
		Opponent Kotze, A (Audrey-Ann)				Opponent Zuze, S (Sasha)
3	1	Tournament Pedro Booyse Annual Rapid 2024				Tournament Pedro Booyse Annual Rapid 2024
		date 2024-07-06	rnd 2	type Rapid	result 1	date 2024-07-06	rnd 2	type Rapid	result 1
		Opponent Swarts, F (Faqir)				Opponent Swarts, F (Faqir)

#	Games	Start				End
1	2	Tournament West Coast Schools Prestige 2022				Tournament West Coast Schools Prestige 2022
		date 2022-02-19	rnd 1	type Standard	result 1	date 2022-02-19	rnd 2	type Standard	result 1
		Opponent Philander, A (Alex)				Opponent Fredericks, M (Meniche)
2	2	Tournament Bo-Weskus Skole Prestige 2020				Tournament Bo-Weskus Skole Prestige 2020
		date 2020-02-15	rnd 1	type Standard	result 1	date 2020-02-15	rnd 2	type Standard	result 1
		Opponent Kotze, A (Audrey-Ann)				Opponent Zuze, S (Sasha)

#	Games	Start				End
1	1	Tournament Pedro Booyse Annual Rapid 2024				Tournament Pedro Booyse Annual Rapid 2024
		date 2024-07-06	rnd 2	type Rapid	result 1	date 2024-07-06	rnd 2	type Rapid	result 1
		Opponent Swarts, F (Faqir)				Opponent Swarts, F (Faqir)

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	Van Der Westhuizen ,C (Courtney)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Van Der Westhuizen ,C (Courtney)	2	1114.2	689.2	2	1047.8	689.2	0	0	0	0	0	0
2	Engelbrecht ,V (Vinchenzo)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Engelbrecht ,V (Vinchenzo)	1	1218.6	793.6	1	1186.6	793.6	0	0	0	0	0	0
3	Gentles ,A (Abrian)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Gentles ,A (Abrian)	1	1222.5	797.5	1	1124.4	797.5	0	0	0	0	0	0
4	Pienaar ,F (Francisca)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Pienaar ,F (Francisca)	1	1041.1	616.1	1	975.8	616.1	0	0	0	0	0	0
5	Fredericks ,M (Meniche)	1	1	425	1	1	425	0	0	0	0	0	0
5	Fredericks ,M (Meniche)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Philander ,A (Alex)	1	1	425	1	1	425	0	0	0	0	0	0
6	Philander ,A (Alex)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Sauls ,J (Jada)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Sauls ,J (Jada)	1	1119.1	694.1	1	1080	694.1	0	0	0	0	0	0
8	Warner ,A (Alicia)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Warner ,A (Alicia)	1	1301.3	876.3	1	1199.8	876.3	0	0	0	0	0	0
9	Cloete ,A (Amanda)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Cloete ,A (Amanda)	1	1161.8	736.8	1	1153.2	736.8	0	0	0	0	0	0
10	Zuse ,S (Sasha)	1	1	425	1	1	425	0	0	0	0	0	0
10	Zuse ,S (Sasha)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Willemse, J (Jadiah)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms