Chess South Africa Ratings Database

PLAYER PAGE

Personal

Thomas, J (Jenna)

Chess SA id

2100156312

FIDE id

Date of birth

2010-06-22 (U16)

Gender

Female

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-06

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1186

Item	Main	Standard	Rapid	Blitz
Rating	1246	1247	1200	1200
Raw rating	1223.5	1219.4	1200	1200
Weighted rating	1246	1247	1200	1200
Weighted performance	1120.1	1116.2	0	0
Floor	801.9	821	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	160.3	161.3	165.8	165.8
Highest rating	1547 2023-07-01	1546.3 2023-07-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1301.9 2024-02-01	1321 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1301.9 2024-09-01	1321 2024-07-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1547 2023-07-01	1546.3 2023-07-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.8	-3.5	0	0
New rating	1243.3	1243.5	1200	1200
Analysis
Rating	1246	1247	1200	1200
Raw rating	1223.5	1219.4	1200	1200
Weighted rating	1246	1247	1200
Weighted performance	1120.1	1116.2	0
K-factor	36	36	36	36
Floor	801.9	821	700	700
Max/Min rating change allowed	160.3	161.3	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	1223.5	1219.4	1200	1200
New weighted rating	1243.3	1243.5	1200	1200
New weighted performance	1119.7	1115.8	0	0
Temp new rating	1243.3	1243.5	1200	1200
Temp new rating +/-	-2.8	-3.5	0	0
Final new rating +/-	-2.8	-3.5	0	0
New rating	1243.3	1243.5	1200	1200
New K-factor	36	36	36	36
New floor	801.9	821	700	700

Item	Main	Standard
	0	0
	25	25
	20	20
	10	10
	0	0
	0	0
History	55	55

Games since
	Main 45	Standard 45		Rapid 0		Blitz 0
Gender	Female
Age group	U16
Region	West Rand (GWR)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	3675		1199		105
Female	833		264		26
U16	596		193		16
U16 Female	174		60		9
Standard
	RSA		Province		Region
Overall	3548		1257		129
Female	805		273		33
U16	586		202		17
U16 Female	164		59		9
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	25	9.5	38	-102	1289.8	1187.8
Standard	25	9.5	38	-102	1289.8	1187.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	55	25.5	46.36	-30.9	1239	1208.1
Standard	55	25.5	46.36	-30.9	1239	1208.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1223.5	1219.4	1200	1200
2025-09-01	1249.2	1250.7	1200	1200
2025-08-01	1249.2	1250.7	1200	1200
2025-07-01	1286.2	1292.8	1200	1200
2025-06-01	1291.8	1301.1	1200	1200
2025-05-01	1248.7	1251.7	1200	1200
2025-04-01	1248.7	1251.7	1200	1200
2025-03-01	1247.6	1250.4	1200	1200
2025-02-01	1244.6	1246.6	1200	1200
2025-01-01	1168.1	1148.9	1200	1200
2024-12-01	1168.1	1148.9	1200	1200
2024-11-01	1168.1	1148.9	1200	1200
2024-10-01	1168.1	1148.9	1200	1200
2024-09-01	1257.4	1259.8	1200	1200
2024-08-01	1257.4	1259.8	1200	1200
2024-07-01	1301	1316	1200	1200
2024-06-01	1301	1316	1200	1200
2024-08-01	1301.9	1321	1200	1200
2024-04-01	1301.9	1321	1200	1200
2024-03-01	1301.9	1321	1200	1200
2024-02-01	1301.9	1321	1200	1200
2024-01-01	1301.9	1321	1200	1200
2023-12-01	1301.9	1321	1200	1200
2023-11-01	1301.9	1321	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	West Rand Trials 2025 (U16)	2025-09-06	2025-09-06	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis
2	2025 D2 Schools League Finals (U15)	2025-07-26	2025-07-26	Standard	West Rand (GWR)	5	5	1	Yes	Analysis
3	West Rand Open 2.0 2025 (Rooks)	2025-06-07	2025-06-07	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
4	2025 D2 Schools Individuals (U15 Girls)	2025-05-10	2025-05-10	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
5	2025 West Rand Open (Rooks)	2025-02-08	2025-02-08	Standard	West Rand (GWR)	5	5	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	West Rand Trials 2025 (U16)	2025-09-06	2025-09-06	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis
2	2025 D2 Schools League Finals (U15)	2025-07-26	2025-07-26	Standard	West Rand (GWR)	5	5	1	Yes	Analysis
3	West Rand Open 2.0 2025 (Rooks)	2025-06-07	2025-06-07	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
4	2025 D2 Schools Individuals (U15 Girls)	2025-05-10	2025-05-10	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
5	2025 West Rand Open (Rooks)	2025-02-08	2025-02-08	Standard	West Rand (GWR)	5	5	1	Yes	Analysis
6	2024 West Rand Trials (U16)	2024-09-07	2024-09-07	Standard	West Rand (GWR)	5	5	1	Yes	Analysis
7	Gauteng Schools Individuals Finals 2024 (U15 Girls)	2024-08-17	2024-08-17	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
8	D2 School League Finals 2024 (U15)	2024-07-20	2024-07-20	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
9	2024 D2 Schools Individuals (U15 Girls)	2024-05-04	2024-05-04	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
10	D2 School League Finals 2023 (U13 Girls)	2023-07-22	2023-07-22	Standard	West Rand (GWR)	5	5	5	Yes	Analysis
11	D2 Schools Individuals 2023 (U13 Girls)	2023-05-13	2023-05-13	Standard	West Rand (GWR)	5	5	3	Yes	Analysis

#	Games	Start				End
1	7	Tournament D2 School League Finals 2023				Tournament 2024 D2 Schools Individuals
		date 2023-07-22	rnd 1	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Labuschagne, M (Mila)				Opponent Wansi, R (Rebecca Nathalie)
2	5	Tournament 2025 D2 Schools Individuals				Tournament West Rand Open 2.0 2025
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-06-07	rnd 1	type Standard	result 1
		Opponent Mabiya, F (Faith)				Opponent Viljoen, J (Johandre)
3	3	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 1	type Standard	result 1	date 2023-05-13	rnd 3	type Standard	result 1
		Opponent Basson, J (Janelda)				Opponent Chitsamba, L (Liezel)

#	Games	Start				End
1	7	Tournament D2 School League Finals 2023				Tournament 2024 D2 Schools Individuals
		date 2023-07-22	rnd 1	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Labuschagne, M (Mila)				Opponent Wansi, R (Rebecca Nathalie)
2	5	Tournament 2025 D2 Schools Individuals				Tournament West Rand Open 2.0 2025
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-06-07	rnd 1	type Standard	result 1
		Opponent Mabiya, F (Faith)				Opponent Viljoen, J (Johandre)
3	3	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 1	type Standard	result 1	date 2023-05-13	rnd 3	type Standard	result 1
		Opponent Basson, J (Janelda)				Opponent Chitsamba, L (Liezel)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament D2 School League Finals 2023				Tournament 2024 D2 Schools Individuals
		date 2023-07-22	rnd 1	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Labuschagne, M (Mila)				Opponent Wansi, R (Rebecca Nathalie)
2	5	Tournament 2025 D2 Schools Individuals				Tournament West Rand Open 2.0 2025
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-06-07	rnd 1	type Standard	result 1
		Opponent Mabiya, F (Faith)				Opponent Viljoen, J (Johandre)
3	3	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 1	type Standard	result 1	date 2023-05-13	rnd 3	type Standard	result 1
		Opponent Basson, J (Janelda)				Opponent Chitsamba, L (Liezel)

#	Games	Start				End
1	7	Tournament D2 School League Finals 2023				Tournament 2024 D2 Schools Individuals
		date 2023-07-22	rnd 1	type Standard	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Labuschagne, M (Mila)				Opponent Wansi, R (Rebecca Nathalie)
2	5	Tournament 2025 D2 Schools Individuals				Tournament West Rand Open 2.0 2025
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-06-07	rnd 1	type Standard	result 1
		Opponent Mabiya, F (Faith)				Opponent Viljoen, J (Johandre)
3	3	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 1	type Standard	result 1	date 2023-05-13	rnd 3	type Standard	result 1
		Opponent Basson, J (Janelda)				Opponent Chitsamba, L (Liezel)

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	Msiza ,A (Ayanda Ntsakiso)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Msiza ,A (Ayanda Ntsakiso)	2	1379.2	954.2	2	1336.3	954.2	0	0	0	0	0	0
2	Tshilambavhunwa ,S (Sebabatso)	2	2	425	2	2	425	0	0	0	0	0	0
2	Tshilambavhunwa ,S (Sebabatso)	2	1188	1613	2	1190.1	1613	0	0	0	0	0	0
3	Pretorius ,C (Chanmari)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
3	Pretorius ,C (Chanmari)	2	1202.3	989.8	2	1202	989.8	0	0	0	0	0	0
4	Ramajoana ,R (Reabetswe)	1	1	425	1	1	425	0	0	0	0	0	0
4	Ramajoana ,R (Reabetswe)	1	1205.1	1630.1	1	1208.7	1630.1	0	0	0	0	0	0
5	Matshidiso ,N (Ntsikelelo Njabulo)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Matshidiso ,N (Ntsikelelo Njabulo)	1	1199.9	774.9	1	1200	774.9	0	0	0	0	0	0
6	Methani ,B (Busisiwe)	1	1	425	1	1	425	0	0	0	0	0	0
6	Methani ,B (Busisiwe)	1	1204.5	1629.5	1	1206.5	1629.5	0	0	0	0	0	0
7	Perry-Fisher ,IE (Iain Eric)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Perry-Fisher ,IE (Iain Eric)	1	1493.4	1068.4	1	1504	1068.4	0	0	0	0	0	0
8	Conradie ,R (Ruan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Conradie ,R (Ruan)	1	1210.8	785.8	1	1212.4	785.8	0	0	0	0	0	0
9	Matshitse ,K (Kopano)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Matshitse ,K (Kopano)	1	1145.2	720.2	1	1138	720.2	0	0	0	0	0	0
10	Mangena ,M (Marklee)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mangena ,M (Marklee)	1	1220.8	795.8	1	1220.9	795.8	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

Thomas, J (Jenna)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms