Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kruger, SJ (Sarah Jane)

Chess SA id

209067364

FIDE id

Date of birth

2009-04-13 (U18)

Gender

Female

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-03-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1271.9	1266.4	861.6	861.6
Raw rating	1271.9	1266.4	861.6	861.6
Weighted rating	1271.9	1266.4	861.6	861.6
Weighted performance	213.1	211.5	0	0
Floor	771.9	766.4	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	149.7	150.8	268.5	268.5
Highest rating	1285.7 2019-03-01	1276.1 2019-03-01	1200 2024-03-01	1200 2024-03-01
Highest raw rating	1271.9 2024-03-01	1266.4 2024-03-01	861.6 2024-03-01	861.6 2024-03-01
Highest weighted rating	1271.9 2024-03-01	1266.4 2024-03-01	861.6 2024-11-01	861.6 2024-11-01
Highest weighted performance	1285.7 2019-03-01	1276.1 2019-03-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1271.9	1266.4	861.6	861.6
Analysis
Rating	1271.9	1266.4	861.6	861.6
Raw rating	1271.9	1266.4	861.6	861.6
Weighted rating	1271.9	1266.4	861.6
Weighted performance	213.1	211.5	0
K-factor	36	36	40	40
Floor	771.9	766.4	500	500
Max/Min rating change allowed	149.7	150.8	268.5	268.5
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	1271.9	1266.4	861.6	861.6
New weighted rating	1271.9	1266.4	861.6	861.6
New weighted performance	212.7	211.1	0	0
Temp new rating	1271.9	1266.4	861.6	861.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1271.9	1266.4	861.6	861.6
New K-factor	36	36	40	40
New floor	771.9	766.4	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	207	185	22

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U18
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 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	65	39.5	60.77	91.5	1018.8	1110.4
Standard	65	39.5	60.77	91.5	1018.8	1110.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1271.9	1266.4	861.6	861.6
2025-09-01	1271.9	1266.4	861.6	861.6
2025-08-01	1271.9	1266.4	861.6	861.6
2025-07-01	1271.9	1266.4	861.6	861.6
2025-06-01	1271.9	1266.4	861.6	861.6
2025-05-01	1271.9	1266.4	861.6	861.6
2025-04-01	1271.9	1266.4	861.6	861.6
2025-03-01	1271.9	1266.4	861.6	861.6
2025-02-01	1271.9	1266.4	861.6	861.6
2025-01-01	1271.9	1266.4	861.6	861.6
2024-12-01	1271.9	1266.4	861.6	861.6
2024-11-01	1271.9	1266.4	861.6	861.6
2024-10-01	1271.9	1266.4	861.6	861.6
2024-09-01	1271.9	1266.4	861.6	861.6
2024-08-01	1271.9	1266.4	861.6	861.6
2024-07-01	1271.9	1266.4	861.6	861.6
2024-06-01	1271.9	1266.4	861.6	861.6
2024-08-01	1271.9	1266.4	861.6	861.6
2024-04-01	1271.9	1266.4	861.6	861.6
2024-03-01	1271.9	1266.4	861.6	861.6
2024-02-01	1271.9	1266.4	861.6	861.6
2024-01-01	1271.9	1266.4	861.6	861.6
2023-12-01	1271.9	1266.4	861.6	861.6
2023-11-01	1271.9	1266.4	861.6	861.6

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	NMBCU Trials 1 2019 (U12)	2019-03-08	2019-03-09	Standard	Nelson Mandela Bay (ENM)	5	5	4	Yes	Analysis
2	2019 South African Junior Closed Chess Championship (U10 Girls)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	5	Yes	Analysis
3	Ultimate Chess Open 2018 (B)	2018-11-30	2018-12-01	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
4	South African Junior Team Championships 2018 (U10A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
5	NMBJC Closed 2018 (U10)	2018-07-27	2018-07-28	Standard	Nelson Mandela Bay (ENM)	6	4	4	Yes	Analysis
6	NMBJC Trials 4 2018 (U10)	2018-07-20	2018-07-21	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
7	NMB Second Trials 2018 (U10)	2018-04-20	2018-04-22	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
8	NMB First Trails 2018 (U10)	2018-03-23	2018-03-24	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
9	2018 Boardwalk Pearson Open (B)	2018-03-17	2018-03-18	Standard	Nelson Mandela Bay (ENM)	7	6	2	Yes	Analysis
10	Registration Tournament 2018 (B)	2018-02-23	2018-02-24	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
11	South African Junior Team Championships 2017 (U10A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis

#	Games	Start				End
1	9	Tournament South African Junior Team Championships 2018				Tournament NMBCU Trials 1 2019
		date 2018-12-17	rnd 3	type Standard	result 1	date 2019-03-09	rnd 4	type Standard	result 1
		Opponent Olivier, L (Lienke)				Opponent Rautenbach, J (Joshua)
2	6	Tournament NMBJC Trials 4 2018				Tournament NMBJC Closed 2018
		date 2018-07-21	rnd 4	type Standard	result 1	date 2018-07-28	rnd 6	type Standard	result 1
		Opponent Dantu, ZS (Zara Shiloh)				Opponent Plaatjies, A (Angelique)
3	3	Tournament NMB Second Trials 2018				Tournament NMBJC Trials 4 2018
		date 2018-04-22	rnd 5	type Standard	result 1	date 2018-07-21	rnd 2	type Standard	result 1
		Opponent Plaatjies, A (Angelique)				Opponent Spence, K (Kayden)

#	Games	Start				End
1	9	Tournament South African Junior Team Championships 2018				Tournament NMBCU Trials 1 2019
		date 2018-12-17	rnd 3	type Standard	result 1	date 2019-03-09	rnd 4	type Standard	result 1
		Opponent Olivier, L (Lienke)				Opponent Rautenbach, J (Joshua)
2	6	Tournament NMBJC Trials 4 2018				Tournament NMBJC Closed 2018
		date 2018-07-21	rnd 4	type Standard	result 1	date 2018-07-28	rnd 6	type Standard	result 1
		Opponent Dantu, ZS (Zara Shiloh)				Opponent Plaatjies, A (Angelique)
3	3	Tournament NMB Second Trials 2018				Tournament NMBJC Trials 4 2018
		date 2018-04-22	rnd 5	type Standard	result 1	date 2018-07-21	rnd 2	type Standard	result 1
		Opponent Plaatjies, A (Angelique)				Opponent Spence, K (Kayden)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament South African Junior Team Championships 2018				Tournament NMBCU Trials 1 2019
		date 2018-12-17	rnd 3	type Standard	result 1	date 2019-03-09	rnd 4	type Standard	result 1
		Opponent Olivier, L (Lienke)				Opponent Rautenbach, J (Joshua)
2	4	Tournament NMBJC Closed 2018				Tournament NMBJC Closed 2018
		date 2018-07-27	rnd 1	type Standard	result 1	date 2018-07-28	rnd 6	type Standard	result 1
		Opponent Healy, A (Alexander)				Opponent Plaatjies, A (Angelique)
3	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 2	type Standard	result 1	date 2018-01-05	rnd 4	type Standard	result 1
		Opponent Pretorius, E (Esna)				Opponent Van Straaten, P (Petrus)

#	Games	Start				End
1	9	Tournament South African Junior Team Championships 2018				Tournament NMBCU Trials 1 2019
		date 2018-12-17	rnd 3	type Standard	result 1	date 2019-03-09	rnd 4	type Standard	result 1
		Opponent Olivier, L (Lienke)				Opponent Rautenbach, J (Joshua)
2	4	Tournament NMBJC Closed 2018				Tournament NMBJC Closed 2018
		date 2018-07-27	rnd 1	type Standard	result 1	date 2018-07-28	rnd 6	type Standard	result 1
		Opponent Healy, A (Alexander)				Opponent Plaatjies, A (Angelique)
3	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 2	type Standard	result 1	date 2018-01-05	rnd 4	type Standard	result 1
		Opponent Pretorius, E (Esna)				Opponent Van Straaten, P (Petrus)

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	Louis ,C (Caitlyn)	2	1	0	2	1	0	0	0	0	0	0	0
1	Louis ,C (Caitlyn)	2	1114.1	1114.1	2	1093.3	1114.1	0	0	0	0	0	0
2	Spence ,K (Kayden)	2	2	425	2	2	425	0	0	0	0	0	0
2	Spence ,K (Kayden)	2	833.3	1258.3	2	824	1258.3	0	0	0	0	0	0
3	Peter ,N (Noah)	2	1	0	2	1	0	0	0	0	0	0	0
3	Peter ,N (Noah)	2	1167.2	1167.2	2	1154.9	1167.2	0	0	0	0	0	0
4	Van Der Merwe ,S (Sarah)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
4	Van Der Merwe ,S (Sarah)	2	823.3	1035.8	2	791.8	1035.8	0	0	0	0	0	0
5	Jonker ,A (Adrian)	2	2	425	2	2	425	0	0	0	0	0	0
5	Jonker ,A (Adrian)	2	1163.6	1588.6	2	1168	1588.6	0	0	0	0	0	0
6	Crone ,C (Callan)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Crone ,C (Callan)	2	1088.8	663.8	2	1089	663.8	0	0	0	0	0	0
7	Van Schaik ,K (Kayla)	2	2	425	2	2	425	0	0	0	0	0	0
7	Van Schaik ,K (Kayla)	2	1150.1	1575.1	2	1145.9	1575.1	0	0	0	0	0	0
8	Mafuya ,X (Xabiso)	2	1	0	2	1	0	0	0	0	0	0	0
8	Mafuya ,X (Xabiso)	2	929.9	929.9	2	897.5	929.9	0	0	0	0	0	0
9	Plaatjies ,A (Angelique)	2	2	425	2	2	425	0	0	0	0	0	0
9	Plaatjies ,A (Angelique)	2	1016.6	1441.6	2	1008.4	1441.6	0	0	0	0	0	0
10	Munir ,A (Ainy)	1	1	425	1	1	425	0	0	0	0	0	0
10	Munir ,A (Ainy)	1	1163.5	1588.5	1	1156.4	1588.5	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

Kruger, SJ (Sarah Jane)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms