Chess South Africa Ratings Database

PLAYER PAGE

Personal

Perkins, J (Jenna)

Chess SA id

2110113534

FIDE id

Date of birth

2011-04-22 (U16)

Gender

Female

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-12-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1311.5

Item	Main	Standard	Rapid	Blitz
Rating	1308.4	1264.8	1260.7	1200
Raw rating	1308.4	1264.8	1260.7	1200
Weighted rating	1296.9	1261.6	1248.6	1200
Weighted performance	1132.3	1110	0	0
Floor	878.1	823.8	760.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	142.1	151.2	152.1	165.8
Highest rating	1417.1 2024-10-01	1323.8 2024-11-01	1286 2024-09-01	1200 2018-10-01
Highest raw rating	1378.1 2024-11-01	1323.8 2024-11-01	1260.7 2024-11-01	1200 2024-03-01
Highest weighted rating	1287.5 2025-08-01	1257.6 2025-08-01	1241.2 2025-08-01	1200 2018-10-01
Highest weighted performance	1417.1 2024-10-01	1308.8 2024-10-01	1286 2024-09-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1308.4	1264.8	1260.7	1200
Analysis
Rating	1308.4	1264.8	1260.7	1200
Raw rating	1308.4	1264.8	1260.7	1200
Weighted rating	1296.9	1261.6	1248.6
Weighted performance	1132.3	1110	0
K-factor	36	36	36	36
Floor	878.1	823.8	760.7	700
Max/Min rating change allowed	142.1	151.2	152.1	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	1308.4	1264.8	1260.7	1200
New weighted rating	1299.4	1262.7	1250.6	1200
New weighted performance	1124.8	1102.6	0	0
Temp new rating	1308.4	1264.8	1260.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1308.4	1264.8	1260.7	1200
New K-factor	36	36	36	36
New floor	878.1	823.8	760.7	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	29	24	5
	15	5	10
	0	0	0
	0	0	0
History	53	38	15

Games since
	Main 35	Standard 24		Rapid 11		Blitz 0
Gender	Female
Age group	U16
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
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	53	28	52.83	24.1	1272.9	1297
Standard	38	19	50	0	1279.2	1279.2
Rapid	15	9	60	85	1257.1	1342.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1308.4	1264.8	1260.7	1200
2025-09-30	1308.4	1264.8	1260.7	1200
2025-09-01	1308.4	1264.8	1260.7	1200
2025-08-01	1308.4	1264.8	1260.7	1200
2025-07-01	1308.4	1264.8	1260.7	1200
2025-06-01	1308.4	1264.8	1260.7	1200
2025-05-01	1308.4	1264.8	1260.7	1200
2025-04-01	1308.4	1264.8	1260.7	1200
2025-03-01	1308.4	1264.8	1260.7	1200
2025-02-01	1308.4	1264.8	1260.7	1200
2025-01-01	1308.4	1264.8	1260.7	1200
2024-12-01	1378.1	1323.8	1260.7	1200
2024-11-01	1378.1	1323.8	1260.7	1200
2024-10-01	1249	1251.4	1205.6	1200
2024-09-01	1229.6	1226.6	1205.6	1200
2024-08-01	1229.6	1226.6	1205.6	1200
2024-07-01	1224.2	1221.6	1205.6	1200
2024-09-01	1224.2	1221.6	1205.6	1200
2024-05-01	1224.2	1221.6	1205.6	1200
2024-04-01	1224.2	1221.6	1205.6	1200
2024-03-01	1224.2	1221.6	1205.6	1200
2024-02-01	1224.2	1221.6	1205.6	1200
2024-01-01	1224.2	1221.6	1205.6	1200
2023-12-01	1224.2	1221.6	1205.6	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	Gauteng Inter-Region at UJ 2024 (U14 Girls)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
2	East Rand Chess Year end Open 2024 (C)	2024-11-30	2024-11-30	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
3	Wits Young Kudu 2024 (Primary School)	2024-09-14	2024-09-14	Rapid	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
4	Gauteng Top Schools 2024 (U13 Girls)	2024-10-04	2024-10-04	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
5	Gauteng Schools Individuals Finals 2024 (U13 Girls)	2024-08-16	2024-08-16	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
6	Ekurhuleni Trails 2 2024 (U14)	2024-07-27	2024-07-27	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
7	Chess Power House Festive Rapid 2023 (Grade 3-7)	2023-12-15	2023-12-15	Rapid	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis
8	Chess Molecules Rapid 2023 (High School Girls)	2023-09-23	2023-09-23	Rapid	Ekurhuleni (GE)	5	4	2	Yes	Analysis
9	2023 Gauteng Top Schools (U13 Girls)	2023-08-18	2023-08-18	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
10	2019 Gauteng School League Finals (U9 Open)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
11	Ekurhuleni South School Chess 2019 (U9 Girls)	2019-05-11	2019-05-11	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

#	Games	Start				End
1	5	Tournament Wits Young Kudu 2024				Tournament Gauteng Top Schools 2024
		date 2024-09-14	rnd 4	type Rapid	result 1	date 2024-10-04	rnd 3	type Standard	result 1
		Opponent Mkontwana, L (Lungiswa)				Opponent Du Toit, M (Mine)
2	4	Tournament Gauteng Schools Individuals Finals 2024				Tournament Wits Young Kudu 2024
		date 2024-08-16	rnd 4	type Standard	result 1	date 2024-09-14	rnd 2	type Rapid	result 1
		Opponent Maharajh, A (Aravia)				Opponent Mashita, B (Bohlale)
3	3	Tournament Gauteng Top Schools 2024				Tournament East Rand Chess Year end Open 2024
		date 2024-10-04	rnd 5	type Standard	result 1	date 2024-11-30	rnd 2	type Standard	result 1
		Opponent Mampane, O (Oratile)				Opponent Soni, M (Mholi)

#	Games	Start				End
1	5	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Top Schools 2024
		date 2024-08-16	rnd 4	type Standard	result 1	date 2024-10-04	rnd 3	type Standard	result 1
		Opponent Maharajh, A (Aravia)				Opponent Du Toit, M (Mine)
2	3	Tournament Gauteng Top Schools 2024				Tournament East Rand Chess Year end Open 2024
		date 2024-10-04	rnd 5	type Standard	result 1	date 2024-11-30	rnd 2	type Standard	result 1
		Opponent Mampane, O (Oratile)				Opponent Soni, M (Mholi)
3	2	Tournament Ekurhuleni Trails 2 2024				Tournament Ekurhuleni Trails 2 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-07-27	rnd 3	type Standard	result 1
		Opponent Seitireng, D (Didintle)				Opponent Buitendag, D (Darius)

#	Games	Start				End
1	3	Tournament Chess Power House Festive Rapid 2023				Tournament Wits Young Kudu 2024
		date 2023-12-15	rnd 6	type Rapid	result 1	date 2024-09-14	rnd 2	type Rapid	result 1
		Opponent Dlamini, M (Mohlodi)				Opponent Mashita, B (Bohlale)
2	2	Tournament Wits Young Kudu 2024				Tournament Wits Young Kudu 2024
		date 2024-09-14	rnd 4	type Rapid	result 1	date 2024-09-14	rnd 5	type Rapid	result 1
		Opponent Mkontwana, L (Lungiswa)				Opponent Mongalo, A (Atlegang)
3	2	Tournament Chess Molecules Rapid 2023				Tournament Chess Power House Festive Rapid 2023
		date 2023-09-23	rnd 5	type Rapid	result 1	date 2023-12-15	rnd 1	type Rapid	result 1
		Opponent Kekane, T (Tshireketso)				Opponent Bari, C (Chanakya)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Wits Young Kudu 2024				Tournament Gauteng Top Schools 2024
		date 2024-09-14	rnd 4	type Rapid	result 1	date 2024-10-04	rnd 3	type Standard	result 1
		Opponent Mkontwana, L (Lungiswa)				Opponent Du Toit, M (Mine)
2	4	Tournament Gauteng Schools Individuals Finals 2024				Tournament Wits Young Kudu 2024
		date 2024-08-16	rnd 4	type Standard	result 1	date 2024-09-14	rnd 2	type Rapid	result 1
		Opponent Maharajh, A (Aravia)				Opponent Mashita, B (Bohlale)
3	3	Tournament Gauteng Top Schools 2024				Tournament East Rand Chess Year end Open 2024
		date 2024-10-04	rnd 5	type Standard	result 1	date 2024-11-30	rnd 2	type Standard	result 1
		Opponent Mampane, O (Oratile)				Opponent Soni, M (Mholi)

#	Games	Start				End
1	5	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Top Schools 2024
		date 2024-08-16	rnd 4	type Standard	result 1	date 2024-10-04	rnd 3	type Standard	result 1
		Opponent Maharajh, A (Aravia)				Opponent Du Toit, M (Mine)
2	3	Tournament Gauteng Top Schools 2024				Tournament East Rand Chess Year end Open 2024
		date 2024-10-04	rnd 5	type Standard	result 1	date 2024-11-30	rnd 2	type Standard	result 1
		Opponent Mampane, O (Oratile)				Opponent Soni, M (Mholi)
3	2	Tournament Ekurhuleni Trails 2 2024				Tournament Ekurhuleni Trails 2 2024
		date 2024-07-27	rnd 2	type Standard	result 1	date 2024-07-27	rnd 3	type Standard	result 1
		Opponent Seitireng, D (Didintle)				Opponent Buitendag, D (Darius)

#	Games	Start				End
1	3	Tournament Chess Power House Festive Rapid 2023				Tournament Wits Young Kudu 2024
		date 2023-12-15	rnd 6	type Rapid	result 1	date 2024-09-14	rnd 2	type Rapid	result 1
		Opponent Dlamini, M (Mohlodi)				Opponent Mashita, B (Bohlale)
2	2	Tournament Wits Young Kudu 2024				Tournament Wits Young Kudu 2024
		date 2024-09-14	rnd 4	type Rapid	result 1	date 2024-09-14	rnd 5	type Rapid	result 1
		Opponent Mkontwana, L (Lungiswa)				Opponent Mongalo, A (Atlegang)
3	2	Tournament Chess Molecules Rapid 2023				Tournament Chess Power House Festive Rapid 2023
		date 2023-09-23	rnd 5	type Rapid	result 1	date 2023-12-15	rnd 1	type Rapid	result 1
		Opponent Kekane, T (Tshireketso)				Opponent Bari, C (Chanakya)

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	Strauss ,L (Lun�)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Strauss ,L (Lun�)	2	1413.8	988.8	2	1400.7	988.8	0	0	0	0	0	0
2	Botha ,CA (Cathri Amari)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Botha ,CA (Cathri Amari)	1	1477.6	1052.6	1	1467.9	1052.6	0	0	0	0	0	0
3	Venter ,E (Elke)	1	1	425	1	1	425	0	0	0	0	0	0
3	Venter ,E (Elke)	1	1242	1667	1	1228.2	1667	0	0	0	0	0	0
4	Mohr ,L (Lukardt)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Mohr ,L (Lukardt)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Ndlovu ,SA (Sibusiso Abraham)	1	1	425	1	1	425	0	0	0	0	0	0
5	Ndlovu ,SA (Sibusiso Abraham)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Maharajh ,A (Aravia)	1	1	425	1	1	425	0	0	0	0	0	0
6	Maharajh ,A (Aravia)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Lin ,S (Shiyu)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Lin ,S (Shiyu)	1	1252.1	827.1	1	1259.2	827.1	0	0	0	0	0	0
8	Swart ,M (Mignon)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Swart ,M (Mignon)	1	1197	772	1	1194.4	772	0	0	0	0	0	0
9	Botha ,JCC (Johannes Christiaan Corneli)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Botha ,JCC (Johannes Christiaan Corneli)	1	1588.7	1163.7	1	1574.4	1163.7	0	0	0	0	0	0
10	Mamapane ,O (Oratile)	1	1	425	1	1	425	0	0	0	0	0	0
10	Mamapane ,O (Oratile)	1	1190.4	1615.4	1	1190.8	1615.4	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

Perkins, 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