Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Tonder, J (Jennike)

Chess SA id

2150156384

FIDE id

Date of birth

2015-05-19 (U12)

Gender

Female

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1212.9

Item	Main	Standard	Rapid	Blitz
Rating	1213.3	1211.6	1200	1200
Raw rating	1213.3	1211.6	1200	1200
Weighted rating	1165.3	1161.2	1200	1200
Weighted performance	1161.9	1160.3	0	0
Floor	713.3	711.6	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	162.7	163.1	165.8	165.8
Highest rating	1213.3 2025-06-01	1211.6 2025-06-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1213.3 2025-06-01	1211.6 2025-06-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1213.3 2018-10-01	1211.6 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1213.3 2025-06-01	1211.6 2019-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1213.3	1211.6	1200	1200
Analysis
Rating	1213.3	1211.6	1200	1200
Raw rating	1213.3	1211.6	1200	1200
Weighted rating	1165.3	1161.2	1200
Weighted performance	1161.9	1160.3	0
K-factor	36	36	36	36
Floor	713.3	711.6	700	700
Max/Min rating change allowed	162.7	163.1	165.8	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	1213.3	1211.6	1200	1200
New weighted rating	1170.1	1166.4	1200	1200
New weighted performance	1161.5	1159.9	0	0
Temp new rating	1213.3	1211.6	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1213.3	1211.6	1200	1200
New K-factor	36	36	36	36
New floor	713.3	711.6	700	700

Item	Main	Standard
	0	0
	20	20
	29	29
	9	9
	0	0
	0	0
History	58	58

Games since
	Main 49	Standard 49		Rapid 0		Blitz 0
Gender	Female
Age group	U12
Region	West Rand (GWR)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	3945		1273		112
Female	935		286		28
U12	653		207		23
U12 Female	204		60		8
Standard
	RSA		Province		Region
Overall	3836		1349		139
Female	914		305		39
U12	615		219		26
U12 Female	192		66		10
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 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	20	9.5	47.5	-21.2	1249	1227.8
Standard	20	9.5	47.5	-21.2	1249	1227.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	58	23	39.66	-87.9	1226.7	1138.8
Standard	58	23	39.66	-87.9	1226.7	1138.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1213.3	1211.6	1200	1200
2025-09-01	1213.3	1211.6	1200	1200
2025-08-01	1213.3	1211.6	1200	1200
2025-07-01	1213.3	1211.6	1200	1200
2025-06-01	1213.3	1211.6	1200	1200
2025-05-01	1179.5	1183.1	1200	1200
2025-04-01	1144.4	1140.2	1200	1200
2025-03-01	1135.4	1128.2	1200	1200
2025-02-01	1135.9	1128.9	1200	1200
2025-01-01	1124.7	1120	1200	1200
2024-12-01	1124.7	1120	1200	1200
2024-11-01	1124.7	1120	1200	1200
2024-10-01	1132.8	1128.3	1200	1200
2024-09-01	1134.3	1129	1200	1200
2024-08-01	1134.3	1129	1200	1200
2024-07-01	1144.5	1140.2	1200	1200
2024-06-01	1144.5	1140.2	1200	1200
2024-08-01	1109.2	1094.8	1200	1200
2024-04-01	1114	1098.4	1200	1200
2024-03-01	1114	1098.4	1200	1200
2024-02-01	1151.3	1142	1200	1200
2024-01-01	1151.3	1142	1200	1200
2023-12-01	1151.3	1142	1200	1200
2023-11-01	1151.3	1142	1200	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	2025 D2 Schools Individuals (U11 Girls)	2025-05-09	2025-05-09	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
2	FIDE in The West 2025 (U12)	2025-04-12	2025-04-12	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
3	West Rand Juniors 2025 (U12)	2025-03-08	2025-03-08	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
4	2025 West Rand Open (U12)	2025-02-08	2025-02-08	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 D2 Schools Individuals (U11 Girls)	2025-05-09	2025-05-09	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
2	FIDE in The West 2025 (U12)	2025-04-12	2025-04-12	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
3	West Rand Juniors 2025 (U12)	2025-03-08	2025-03-08	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
4	2025 West Rand Open (U12)	2025-02-08	2025-02-08	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis
5	2024 West Rand Closed (U10)	2024-10-12	2024-10-12	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis
6	2024 West Rand Trials (U10)	2024-09-07	2024-09-07	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
7	2024 West Rand Rappies Open (U10)	2024-08-03	2024-08-03	Standard	West Rand (GWR)	5	0	0	No	Analysis
8	D2 School League Finals 2024 (U9)	2024-07-20	2024-07-20	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis
9	2024 D2 Schools Individuals (U9)	2024-05-04	2024-05-04	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
10	2024 West Rand RHS Open (U10)	2024-04-13	2024-04-13	Standard	West Rand (GWR)	5	4	1.5	Yes	Analysis
11	2024 West Rand Open (U10)	2024-02-03	2024-02-03	Standard	West Rand (GWR)	5	5	1	Yes	Analysis
12	2023 West Rand Trials (U10)	2023-09-09	2023-09-09	Standard	West Rand (GWR)	5	4	1	Yes	Analysis
13	D2 Schools Individuals 2023 (U9 Boys+Girls)	2023-05-13	2023-05-13	Standard	West Rand (GWR)	5	5	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament 2025 D2 Schools Individuals				Tournament 2025 D2 Schools Individuals
		date 2025-05-09	rnd 2	type Standard	result 1	date 2025-05-09	rnd 4	type Standard	result 1
		Opponent Mere, R (Reatlegile Lucia)				Opponent Sonjica, O (Osanga)
2	3	Tournament FIDE in The West 2025				Tournament FIDE in The West 2025
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Pienaar, E (Evan)				Opponent Blom, W (Wian)
3	3	Tournament 2024 D2 Schools Individuals				Tournament D2 School League Finals 2024
		date 2024-05-04	rnd 4	type Standard	result 1	date 2024-07-20	rnd 1	type Standard	result 0.5
		Opponent Phantsi, N (Nina)				Opponent Janse Van Rensburg, A (Andrew)

#	Games	Start				End
1	3	Tournament 2025 D2 Schools Individuals				Tournament 2025 D2 Schools Individuals
		date 2025-05-09	rnd 2	type Standard	result 1	date 2025-05-09	rnd 4	type Standard	result 1
		Opponent Mere, R (Reatlegile Lucia)				Opponent Sonjica, O (Osanga)
2	3	Tournament FIDE in The West 2025				Tournament FIDE in The West 2025
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Pienaar, E (Evan)				Opponent Blom, W (Wian)
3	3	Tournament 2024 D2 Schools Individuals				Tournament D2 School League Finals 2024
		date 2024-05-04	rnd 4	type Standard	result 1	date 2024-07-20	rnd 1	type Standard	result 0.5
		Opponent Phantsi, N (Nina)				Opponent Janse Van Rensburg, A (Andrew)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2025 D2 Schools Individuals				Tournament 2025 D2 Schools Individuals
		date 2025-05-09	rnd 2	type Standard	result 1	date 2025-05-09	rnd 4	type Standard	result 1
		Opponent Mere, R (Reatlegile Lucia)				Opponent Sonjica, O (Osanga)
2	3	Tournament FIDE in The West 2025				Tournament FIDE in The West 2025
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Pienaar, E (Evan)				Opponent Blom, W (Wian)
3	2	Tournament 2024 West Rand Trials				Tournament 2024 West Rand Trials
		date 2024-09-07	rnd 4	type Standard	result 1	date 2024-09-07	rnd 5	type Standard	result 1
		Opponent Carr, P (Phillip Stuart)				Opponent Haywood, Z (Zayden)

#	Games	Start				End
1	3	Tournament 2025 D2 Schools Individuals				Tournament 2025 D2 Schools Individuals
		date 2025-05-09	rnd 2	type Standard	result 1	date 2025-05-09	rnd 4	type Standard	result 1
		Opponent Mere, R (Reatlegile Lucia)				Opponent Sonjica, O (Osanga)
2	3	Tournament FIDE in The West 2025				Tournament FIDE in The West 2025
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Pienaar, E (Evan)				Opponent Blom, W (Wian)
3	2	Tournament 2024 West Rand Trials				Tournament 2024 West Rand Trials
		date 2024-09-07	rnd 4	type Standard	result 1	date 2024-09-07	rnd 5	type Standard	result 1
		Opponent Carr, P (Phillip Stuart)				Opponent Haywood, Z (Zayden)

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	Jordaan ,L (Louryn)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
1	Jordaan ,L (Louryn)	3	1137	1137	3	1133.6	1137	0	0	0	0	0	0
2	Mlambo ,M (Mbulelo Ntsako)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Mlambo ,M (Mbulelo Ntsako)	2	1340.5	915.5	2	1338.8	915.5	0	0	0	0	0	0
3	Britz ,W (Wian)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Britz ,W (Wian)	2	1286.6	861.6	2	1279.8	861.6	0	0	0	0	0	0
4	Erasmus ,S (Sonja)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Erasmus ,S (Sonja)	2	1252.7	827.7	2	1251.4	827.7	0	0	0	0	0	0
5	Van Der Merwe ,J (Jayden)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Van Der Merwe ,J (Jayden)	2	1292	867	2	1300	867	0	0	0	0	0	0
6	Ninham ,G (Grant)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Ninham ,G (Grant)	2	1243	818	2	1238.4	818	0	0	0	0	0	0
7	Dlamini ,P (Philasande)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Dlamini ,P (Philasande)	2	1241.2	816.2	2	1248.9	816.2	0	0	0	0	0	0
8	Willemse ,B (Bernard)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Willemse ,B (Bernard)	2	1326.4	901.4	2	1330.2	901.4	0	0	0	0	0	0
9	Myburgh ,M (Morne)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Myburgh ,M (Morne)	1	1204.5	779.5	1	1202.1	779.5	0	0	0	0	0	0
10	Letseko ,B (Bonolo)	1	1	425	1	1	425	0	0	0	0	0	0
10	Letseko ,B (Bonolo)	1	1200	1625	1	1200	1625	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

Van Tonder, J (Jennike)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms