Chess South Africa Ratings Database

PLAYER PAGE

Personal

Chukwuma, J (Joanna)

Chess SA id

2150147833

FIDE id

Date of birth

2015-04-05 (U12)

Gender

Female

Region

Ethekwini (KED)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-06

Personal details last changed

1900-01-01

Junior GPX Games

22.2

Junior GPX Points

1117.2

Item	Main	Standard	Rapid	Blitz
Rating	1335.4	1142	1474.2	1200
Raw rating	1335.4	1141.7	1474.2	1200
Weighted rating	1313.3	1142	1450.5	1200
Weighted performance	1250.5	0	1356.4	0
Floor	922.3	700	1016.4	700
K-factor	32	36	32	36
Min/Max rating change allowed	136.7	180.2	112.2	165.8
Highest rating	1422.3 2025-03-01	1200 2018-10-01	1516.4 2025-03-01	1200 2018-10-01
Highest raw rating	1422.3 2025-03-01	1200 2019-12-01	1516.4 2025-03-01	1200 2024-03-01
Highest weighted rating	1308.4 2025-09-30	1200 2018-10-01	1443.3 2025-09-30	1200 2018-10-01
Highest weighted performance	1422.3 2025-03-01	1200 2019-12-01	1516.4 2024-09-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0.1	0	0
New rating	1335.4	1142.1	1474.2	1200
Analysis
Rating	1335.4	1142	1474.2	1200
Raw rating	1335.4	1141.7	1474.2	1200
Weighted rating	1313.3	1142	1450.5
Weighted performance	1250.5	0	1356.4
K-factor	32	36	32	36
Floor	922.3	700	1016.4	700
Max/Min rating change allowed	136.7	180.2	112.2	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	1335.4	1141.7	1474.2	1200
New weighted rating	1317.7	1142.1	1457.1	1200
New weighted performance	1242.8	0	1347.9	0
Temp new rating	1335.4	1142.1	1474.2	1200
Temp new rating +/-	0	0.1	0	0
Final new rating +/-	0	0.1	0	0
New rating	1335.4	1142.1	1474.2	1200
New K-factor	32	36	32	36
New floor	922.3	700	1016.4	700

Item	Main	Standard	Rapid
	0	0	0
	30	14	16
	31	0	31
	10	0	10
	3	3	0
	0	0	0
History	74	17	57

Games since
	Main 61	Standard 14		Rapid 47		Blitz 0
Gender	Female
Age group	U12
Region	Ethekwini (KED)
Province	KwaZulu Natal (KZ)
Main
	RSA		Province		Region
Overall	2895		185		120
Female	552		29		18
U12	421		29		18
U12 Female	112		4		3
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	293		34		27
Female	23		3		3
U12	36		7		6
U12 Female	4		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	30	17	56.67	56.7	1295.6	1352.2
Standard	14	6	42.86	-60.7	1227.7	1167
Rapid	16	11	68.75	159.4	1354.9	1514.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	74	46	62.16	103.4	1256.1	1359.5
Standard	17	6	35.29	-125	1219.5	1094.5
Rapid	57	40	70.18	171.5	1267.1	1438.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1335.4	1141.7	1474.2	1200
2025-09-30	1335.4	1141.7	1474.2	1200
2025-09-01	1326.2	1141.7	1516.4	1200
2025-08-01	1326.2	1141.7	1516.4	1200
2025-07-01	1326.2	1141.6	1516.4	1200
2025-06-01	1326.2	1141.5	1516.4	1200
2025-05-01	1326.2	1141.4	1516.4	1200
2025-04-01	1326.2	1140.7	1516.4	1200
2025-03-01	1422.3	1173.8	1516.4	1200
2025-02-01	1334.3	1138.4	1450.5	1200
2025-01-01	1334.3	1138.4	1450.5	1200
2024-12-01	1334.3	1138.4	1450.5	1200
2024-11-01	1318.2	1138.4	1420.1	1200
2024-10-01	1318.2	1138.4	1420.1	1200
2024-09-01	1289.6	1138.4	1375.4	1200
2024-08-01	1260.8	1138.4	1335.1	1200
2024-07-01	1186.3	1138.4	1245.5	1200
2024-09-01	1186.3	1138.4	1245.5	1200
2024-05-01	1186.3	1138.4	1245.5	1200
2024-04-01	1186.3	1138.4	1245.5	1200
2024-03-01	1186.3	1138.4	1245.5	1200
2024-02-01	1186.3	1138.4	1245.5	1200
2024-01-01	1186.3	1138.4	1245.5	1200
2023-12-01	1186.3	1138.4	1245.5	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 Westville Primary Chess Tournament (Senior Primary)	2025-09-06	2025-09-06	Rapid	Ethekwini (KED)	7	0	0	No	Analysis
2	2025 KZN Provincial Trials (U12)	2025-09-06	2025-09-06	Rapid	Ethekwini (KED)	6	5	2	Yes	Analysis
3	2025 Ethekwini Open (B)	2025-03-21	2025-03-22	Standard	Ethekwini (KED)	6	4	1	Yes	Analysis
4	2025 Eyethu Chess Academy Tournament (U12)	2025-03-15	2025-03-15	Standard	Ethekwini (KED)	5	5	2	Yes	Analysis
5	2025 Westville Girls High School Rapid (U12)	2025-02-22	2025-02-22	Rapid	Ethekwini (KED)	6	6	6	Yes	Analysis
6	Westville Chess Club Rapid Rated February 2025	2025-02-08	2025-02-08	Rapid	Ethekwini (KED)	5	5	3	Yes	Analysis
7	Westville Chess Club Tournament 2025 (Senior Primay)	2025-02-01	2025-02-01	Standard	Ethekwini (KED)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Westville Primary Chess Tournament (Senior Primary)	2025-09-06	2025-09-06	Rapid	Ethekwini (KED)	7	0	0	No	Analysis
2	2025 KZN Provincial Trials (U12)	2025-09-06	2025-09-06	Rapid	Ethekwini (KED)	6	5	2	Yes	Analysis
3	2025 Ethekwini Open (B)	2025-03-21	2025-03-22	Standard	Ethekwini (KED)	6	4	1	Yes	Analysis
4	2025 Eyethu Chess Academy Tournament (U12)	2025-03-15	2025-03-15	Standard	Ethekwini (KED)	5	5	2	Yes	Analysis
5	2025 Westville Girls High School Rapid (U12)	2025-02-22	2025-02-22	Rapid	Ethekwini (KED)	6	6	6	Yes	Analysis
6	Westville Chess Club Rapid Rated February 2025	2025-02-08	2025-02-08	Rapid	Ethekwini (KED)	5	5	3	Yes	Analysis
7	Westville Chess Club Tournament 2025 (Senior Primay)	2025-02-01	2025-02-01	Standard	Ethekwini (KED)	5	5	3	Yes	Analysis
8	Westville Rapid Rated Chess Tournament 2 2024 (Junior Primary)	2024-11-30	2024-11-30	Rapid	Ethekwini (KED)	5	5	4	Yes	Analysis
9	Westville Senior Primary Chess Tournament 2024 (Junior Primary)	2024-09-07	2024-09-07	Rapid	Ethekwini (KED)	7	7	5.5	Yes	Analysis
10	St Henry's Marist College Inuagural Girls Open Chess Tournament 2024	2024-08-17	2024-08-17	Rapid	Ethekwini (KED)	6	6	5	Yes	Analysis
11	St James School Rapid Rated Chess Tournament 2024 (Junior Primary)	2024-07-20	2024-07-20	Rapid	Ethekwini (KED)	6	6	3.5	Yes	Analysis
12	Durban & Districts Chess Challenge 2024 (U8+U10)	2024-06-08	2024-06-08	Rapid	Ethekwini (KED)	7	7	5	Yes	Analysis
13	St James Rapid Rated Tournament 2023 (Junior)	2023-08-26	2023-08-26	Rapid	Ethekwini (KED)	5	5	3	Yes	Analysis
14	Umhlali Preparatory Rapid 2023 (Junior Primary)	2023-05-20	2023-05-20	Rapid	iLembe (KIK)	5	5	3	Yes	Analysis
15	Westville Senior Primary School Individual Invitational Chess Tournament 2023 (Junior Primary)	2023-04-22	2023-04-22	Rapid	Ethekwini (KED)	7	0	0	No	Analysis
16	2nd Durban Trials 2022	2022-11-05	2022-11-05	Standard	Ethekwini (KED)	6	3	0	Yes	Analysis

#	Games	Start				End
1	8	Tournament Westville Chess Club Rapid Rated February 2025				Tournament 2025 Westville Girls High School Rapid
		date 2025-02-08	rnd 4	type Rapid	result 0.5	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Thandrayan, G (Gabriella)				Opponent Varghese, S (Steven)
2	6	Tournament Westville Senior Primary Chess Tournament 2024				Tournament Westville Rapid Rated Chess Tournament 2 2024
		date 2024-09-07	rnd 5	type Rapid	result 0.5	date 2024-11-30	rnd 3	type Rapid	result 1
		Opponent Naidoo, E (Ethan)				Opponent Mylrea, M (Max)
3	5	Tournament St Henry's Marist College Inuagural Girls Open Chess Tournament 2024				Tournament Westville Senior Primary Chess Tournament 2024
		date 2024-08-17	rnd 5	type Rapid	result 1	date 2024-09-07	rnd 3	type Rapid	result 1
		Opponent Govender, T (Terania)				Opponent Boodhun, A (Ayaan)

#	Games	Start				End
1	2	Tournament Westville Chess Club Tournament 2025				Tournament Westville Chess Club Tournament 2025
		date 2025-02-01	rnd 4	type Standard	result 1	date 2025-02-01	rnd 5	type Standard	result 1
		Opponent Moodley, T (Tristan)				Opponent Hansjee, M (Milan)
2	1	Tournament 2025 Ethekwini Open				Tournament 2025 Ethekwini Open
		date 2025-03-21	rnd 3	type Standard	result 1	date 2025-03-21	rnd 3	type Standard	result 1
		Opponent Ntsele, Z (Zibusiso)				Opponent Ntsele, Z (Zibusiso)
3	1	Tournament 2025 Eyethu Chess Academy Tournament				Tournament 2025 Eyethu Chess Academy Tournament
		date 2025-03-15	rnd 5	type Standard	result 1	date 2025-03-15	rnd 5	type Standard	result 1
		Opponent Chen, K (Keanu)				Opponent Chen, K (Keanu)

#	Games	Start				End
1	8	Tournament Westville Chess Club Rapid Rated February 2025				Tournament 2025 Westville Girls High School Rapid
		date 2025-02-08	rnd 4	type Rapid	result 0.5	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Thandrayan, G (Gabriella)				Opponent Varghese, S (Steven)
2	6	Tournament Westville Senior Primary Chess Tournament 2024				Tournament Westville Rapid Rated Chess Tournament 2 2024
		date 2024-09-07	rnd 5	type Rapid	result 0.5	date 2024-11-30	rnd 3	type Rapid	result 1
		Opponent Naidoo, E (Ethan)				Opponent Mylrea, M (Max)
3	5	Tournament St Henry's Marist College Inuagural Girls Open Chess Tournament 2024				Tournament Westville Senior Primary Chess Tournament 2024
		date 2024-08-17	rnd 5	type Rapid	result 1	date 2024-09-07	rnd 3	type Rapid	result 1
		Opponent Govender, T (Terania)				Opponent Boodhun, A (Ayaan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament 2025 Westville Girls High School Rapid				Tournament 2025 Westville Girls High School Rapid
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Mbatha, K (Khanysa)				Opponent Varghese, S (Steven)
2	5	Tournament Westville Senior Primary Chess Tournament 2024				Tournament Westville Rapid Rated Chess Tournament 2 2024
		date 2024-09-07	rnd 6	type Rapid	result 1	date 2024-11-30	rnd 3	type Rapid	result 1
		Opponent Akoonjee, Y (Yacoob)				Opponent Mylrea, M (Max)
3	5	Tournament St Henry's Marist College Inuagural Girls Open Chess Tournament 2024				Tournament Westville Senior Primary Chess Tournament 2024
		date 2024-08-17	rnd 5	type Rapid	result 1	date 2024-09-07	rnd 3	type Rapid	result 1
		Opponent Govender, T (Terania)				Opponent Boodhun, A (Ayaan)

#	Games	Start				End
1	2	Tournament Westville Chess Club Tournament 2025				Tournament Westville Chess Club Tournament 2025
		date 2025-02-01	rnd 4	type Standard	result 1	date 2025-02-01	rnd 5	type Standard	result 1
		Opponent Moodley, T (Tristan)				Opponent Hansjee, M (Milan)
2	1	Tournament 2025 Ethekwini Open				Tournament 2025 Ethekwini Open
		date 2025-03-21	rnd 3	type Standard	result 1	date 2025-03-21	rnd 3	type Standard	result 1
		Opponent Ntsele, Z (Zibusiso)				Opponent Ntsele, Z (Zibusiso)
3	1	Tournament 2025 Eyethu Chess Academy Tournament				Tournament 2025 Eyethu Chess Academy Tournament
		date 2025-03-15	rnd 5	type Standard	result 1	date 2025-03-15	rnd 5	type Standard	result 1
		Opponent Chen, K (Keanu)				Opponent Chen, K (Keanu)

#	Games	Start				End
1	6	Tournament 2025 Westville Girls High School Rapid				Tournament 2025 Westville Girls High School Rapid
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Mbatha, K (Khanysa)				Opponent Varghese, S (Steven)
2	5	Tournament Westville Senior Primary Chess Tournament 2024				Tournament Westville Rapid Rated Chess Tournament 2 2024
		date 2024-09-07	rnd 6	type Rapid	result 1	date 2024-11-30	rnd 3	type Rapid	result 1
		Opponent Akoonjee, Y (Yacoob)				Opponent Mylrea, M (Max)
3	5	Tournament St Henry's Marist College Inuagural Girls Open Chess Tournament 2024				Tournament Westville Senior Primary Chess Tournament 2024
		date 2024-08-17	rnd 5	type Rapid	result 1	date 2024-09-07	rnd 3	type Rapid	result 1
		Opponent Govender, T (Terania)				Opponent Boodhun, A (Ayaan)

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	Summerton ,K (Kayson)	3	2.5	283.3	0	0	0	3	2.5	283.3	0	0	0
1	Summerton ,K (Kayson)	3	1317.4	1600.7	0	0	0	3	1285.3	1600.7	0	0	0
2	Varghese ,S (Steven)	3	1	-141.7	0	0	0	3	1	-141.7	0	0	0
2	Varghese ,S (Steven)	3	1336.2	1194.5	0	0	0	3	1415.4	1194.5	0	0	0
3	Naidoo ,S (Shivam)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	Naidoo ,S (Shivam)	2	1505.8	1080.8	1	1504.5	1080.8	1	1322.4	1080.8	0	0	0
4	Singh ,S (Suveer)	2	2	425	0	0	0	2	2	425	0	0	0
4	Singh ,S (Suveer)	2	1207.2	1632.2	0	0	0	2	1216.4	1632.2	0	0	0
5	Soobramoney ,H (Hezron)	2	0	-425	0	0	0	2	0	-425	0	0	0
5	Soobramoney ,H (Hezron)	2	1284.1	859.1	0	0	0	2	1321.9	859.1	0	0	0
6	Masiteng ,N (Nkosikhona)	2	1	0	0	0	0	2	1	0	0	0	0
6	Masiteng ,N (Nkosikhona)	2	1456.6	1456.6	0	0	0	2	1412.1	1456.6	0	0	0
7	Mbatha ,K (Khanysa)	2	2	425	0	0	0	2	2	425	0	0	0
7	Mbatha ,K (Khanysa)	2	1166.8	1591.8	0	0	0	2	1148.1	1591.8	0	0	0
8	Tsouris ,E (Ezra)	2	2	425	0	0	0	2	2	425	0	0	0
8	Tsouris ,E (Ezra)	2	1140.4	1565.4	0	0	0	2	1215.6	1565.4	0	0	0
9	Power ,A (Amber)	2	2	425	0	0	0	2	2	425	0	0	0
9	Power ,A (Amber)	2	1259.8	1684.8	0	0	0	2	1374.4	1684.8	0	0	0
10	Bhoola ,D (Dhrishay)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Bhoola ,D (Dhrishay)	1	1193	768	1	1200	768	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

Chukwuma, J (Joanna)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms