Chess South Africa Ratings Database

PLAYER PAGE

Personal

Corna, Z (Zeanne)

Chess SA id

2120118794

FIDE id

Date of birth

2012-08-21 (U14)

Gender

Female

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1033.4	1025	1188.9	1200
Raw rating	1003.3	1025	1067	1200
Weighted rating	1033.4	1017.4	1188.9	1200
Weighted performance	806.1	721.8	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	219.5	212.8	200.4	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-3	0	-10.2	0
New rating	1030.5	1025	1178.7	1200
Analysis
Rating	1033.4	1025	1188.9	1200
Raw rating	1003.3	1025	1067	1200
Weighted rating	1033.4	1017.4	1188.9
Weighted performance	806.1	721.8	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	219.5	212.8	200.4	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	1003.3	1025	1067	1200
New weighted rating	1030.5	1017.4	1178.7	1200
New weighted performance	800.9	716.4	0	0
Temp new rating	1030.5	1025	1178.7	1200
Temp new rating +/-	-3	0	-10.2	0
Final new rating +/-	-3	0	-10.2	0
New rating	1030.5	1025	1178.7	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	12	0	12
	10	10	0
	19	19	0
	5	5	0
	0	0	0
History	60	48	12

Games since
	Main 22	Standard 10		Rapid 12		Blitz 0
Gender	Female
Age group	U14
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 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	12	2	16.67	-283.3	1209.4	926
Standard	0	0	0	0	0	0
Rapid	12	2	16.67	-283.3	1209.4	926
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	60	14.5	24.17	-219.6	1203.4	983.8
Standard	48	12.5	26.04	-203.6	1201.9	998.3
Rapid	12	2	16.67	-283.3	1209.4	926
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1003.3	1025	1067	1200
2025-09-30	1049.9	1025	1198	1200
2025-09-01	1049.9	1025	1198	1200
2025-08-01	1049.9	1025	1198	1200
2025-07-01	1041	1025	1200	1200
2025-06-01	1041	1025	1200	1200
2025-05-01	1041	1025	1200	1200
2025-04-01	1041	1025	1200	1200
2025-03-01	1041	1025	1200	1200
2025-02-01	1040.1	1024	1200	1200
2025-01-01	1005.3	983.6	1200	1200
2024-12-01	1005.3	983.6	1200	1200
2024-11-01	1005.3	983.6	1200	1200
2024-10-01	1005.3	983.6	1200	1200
2024-09-01	1005.3	983.6	1200	1200
2024-08-01	1005.3	983.6	1200	1200
2024-07-01	1030.9	1012	1200	1200
2024-09-01	1030.9	1012	1200	1200
2024-05-01	1030.9	1012	1200	1200
2024-04-01	1090	1082.4	1200	1200
2024-03-01	1090	1082.4	1200	1200
2024-02-01	1090	1082.4	1200	1200
2024-01-01	1090	1082.4	1200	1200
2023-12-01	1090	1082.4	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 Super 8 (Senior)	2025-09-26	2025-09-26	Rapid	Ekurhuleni (GE)	7	7	0	Yes	Analysis
2	Bojanala's Clash Of Schools -Primary Schools 2025 (U13)	2025-07-26	2025-07-26	Rapid	Bojanala Platina (NBR)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Super 8 (Senior)	2025-09-26	2025-09-26	Rapid	Ekurhuleni (GE)	7	7	0	Yes	Analysis
2	Bojanala's Clash Of Schools -Primary Schools 2025 (U13)	2025-07-26	2025-07-26	Rapid	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
3	Hamakom's Pioneers Of The Board 2024 (Bishops)	2024-07-13	2024-07-13	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
4	Bojanala Olienpark's One For The Ages 2024 (Bishops)	2024-04-20	2024-04-20	Standard	Bojanala Platina (NBR)	5	5	0	Yes	Analysis
5	Bojanala's Rosewood 2023 (Knights)	2023-08-12	2023-08-12	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
6	Bojanala's Post-Exams 2023 (Development)	2023-06-24	2023-06-24	Standard	Bojanala Platina (NBR)	5	5	2.5	Yes	Analysis
7	Olienpark - 2nd One for the Ages 2023 (U12)	2023-05-13	2023-05-13	Standard	Bojanala Platina (NBR)	5	4	1	Yes	Analysis
8	Schoemies Kings & Queens 2023 (Development)	2023-03-18	2023-03-18	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
9	Bojanala Chess Federation Clash of Schools 2022 (PS Championship)	2022-07-22	2022-07-22	Standard	Bojanala Platina (NBR)	5	5	1.5	Yes	Analysis
10	Hoerskool Brits Toernooi 2020 (Development)	2020-03-14	2020-03-14	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
11	Laerskool Proteapark 2020 (E)	2020-02-29	2020-02-29	Standard	Bojanala Platina (NBR)	5	5	0	Yes	Analysis
12	Laerskool Brits 2019 (U8)	2019-08-31	2019-08-31	Standard	Bojanala Platina (NBR)	5	4	0.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament Bojanala's Post-Exams 2023				Tournament Bojanala's Post-Exams 2023
		date 2023-06-24	rnd 3	type Standard	result 0.5	date 2023-06-24	rnd 4	type Standard	result 1
		Opponent Hattingh, D (Danco)				Opponent Moagi, K (Kaboentle)
2	2	Tournament Hoerskool Brits Toernooi 2020				Tournament Hoerskool Brits Toernooi 2020
		date 2020-03-14	rnd 3	type Standard	result 0.5	date 2020-03-14	rnd 4	type Standard	result 1
		Opponent Coetzer, M (Megan)				Opponent Segonote, B (Bokeing)
3	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 5	type Rapid	result 1	date 2025-07-26	rnd 5	type Rapid	result 1
		Opponent Mogorosi, I (Itumeleng)				Opponent Mogorosi, I (Itumeleng)

#	Games	Start				End
1	2	Tournament Bojanala's Post-Exams 2023				Tournament Bojanala's Post-Exams 2023
		date 2023-06-24	rnd 3	type Standard	result 0.5	date 2023-06-24	rnd 4	type Standard	result 1
		Opponent Hattingh, D (Danco)				Opponent Moagi, K (Kaboentle)
2	2	Tournament Hoerskool Brits Toernooi 2020				Tournament Hoerskool Brits Toernooi 2020
		date 2020-03-14	rnd 3	type Standard	result 0.5	date 2020-03-14	rnd 4	type Standard	result 1
		Opponent Coetzer, M (Megan)				Opponent Segonote, B (Bokeing)
3	1	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Hamakom's Pioneers Of The Board 2024
		date 2024-07-13	rnd 5	type Standard	result 1	date 2024-07-13	rnd 5	type Standard	result 1
		Opponent Herbst, K (Karlien)				Opponent Herbst, K (Karlien)

#	Games	Start				End
1	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 5	type Rapid	result 1	date 2025-07-26	rnd 5	type Rapid	result 1
		Opponent Mogorosi, I (Itumeleng)				Opponent Mogorosi, I (Itumeleng)
2	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent Makete, K (Kgali)				Opponent Makete, K (Kgali)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 5	type Rapid	result 1	date 2025-07-26	rnd 5	type Rapid	result 1
		Opponent Mogorosi, I (Itumeleng)				Opponent Mogorosi, I (Itumeleng)
2	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent Makete, K (Kgali)				Opponent Makete, K (Kgali)
3	1	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Hamakom's Pioneers Of The Board 2024
		date 2024-07-13	rnd 5	type Standard	result 1	date 2024-07-13	rnd 5	type Standard	result 1
		Opponent Herbst, K (Karlien)				Opponent Herbst, K (Karlien)

#	Games	Start				End
1	1	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Hamakom's Pioneers Of The Board 2024
		date 2024-07-13	rnd 5	type Standard	result 1	date 2024-07-13	rnd 5	type Standard	result 1
		Opponent Herbst, K (Karlien)				Opponent Herbst, K (Karlien)
2	1	Tournament Bojanala's Rosewood 2023				Tournament Bojanala's Rosewood 2023
		date 2023-08-12	rnd 4	type Standard	result 1	date 2023-08-12	rnd 4	type Standard	result 1
		Opponent Ramonyai, M (Motshabo)				Opponent Ramonyai, M (Motshabo)
3	1	Tournament Bojanala's Post-Exams 2023				Tournament Bojanala's Post-Exams 2023
		date 2023-06-24	rnd 4	type Standard	result 1	date 2023-06-24	rnd 4	type Standard	result 1
		Opponent Moagi, K (Kaboentle)				Opponent Moagi, K (Kaboentle)

#	Games	Start				End
1	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 5	type Rapid	result 1	date 2025-07-26	rnd 5	type Rapid	result 1
		Opponent Mogorosi, I (Itumeleng)				Opponent Mogorosi, I (Itumeleng)
2	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent Makete, K (Kgali)				Opponent Makete, K (Kgali)

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	Van Den Heever ,A (Aldo)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Van Den Heever ,A (Aldo)	3	1180.4	755.4	3	1176.7	755.4	0	0	0	0	0	0
2	Truyens ,A (Anesta)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Truyens ,A (Anesta)	2	1170.2	745.2	2	1165	745.2	0	0	0	0	0	0
3	Mynhardt ,MF (Mienka Francis)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
3	Mynhardt ,MF (Mienka Francis)	2	1187.6	975.1	2	1184	975.1	0	0	0	0	0	0
4	Mokgatle ,N (Neoetlile)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Mokgatle ,N (Neoetlile)	1	1456.6	1031.6	1	1442.7	1031.6	0	0	0	0	0	0
5	Botha ,E (Ej)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Botha ,E (Ej)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Kgaladi ,O (Oabile)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Kgaladi ,O (Oabile)	1	1165.4	740.4	1	1157.5	740.4	0	0	0	0	0	0
7	Maponopono ,K (Koketso)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Maponopono ,K (Koketso)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Gouws ,D (Dylan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Gouws ,D (Dylan)	1	1100.4	675.4	1	1083.6	675.4	0	0	0	0	0	0
9	Mahumo ,O (Olerato)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Mahumo ,O (Olerato)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Changara ,A (Alvis Tafadzwa)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Changara ,A (Alvis Tafadzwa)	1	1319.7	894.7	1	1317.3	894.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Corna, Z (Zeanne)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms