Chess South Africa Ratings Database

PLAYER PAGE

Personal

Zanna, J (Jahkuska)

Chess SA id

207086837

FIDE id

Date of birth

2007-02-24 (U20)

Gender

Female

Region

Capricorn (LCP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-12-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1172.9	1144.7	1170.8	1200
Raw rating	1172.9	1144.7	1170.8	1200
Weighted rating	1172.9	1144.7	1170.8	1200
Weighted performance	528.2	522.8	0	0
Floor	744.2	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	172.3	179.4	172.9	165.8
Highest rating	1277.3 2019-05-01	1200 2024-11-01	1200 2018-02-01	1200 2018-10-01
Highest raw rating	1244.2 2019-06-01	1200 2018-01-01	1200 2018-02-01	1200 2024-03-01
Highest weighted rating	1244.2 2021-05-01	1200 2024-11-01	1200 2018-02-01	1200 2018-10-01
Highest weighted performance	1277.3 2019-05-01	1200 2024-12-01	1200 2018-02-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1172.9	1144.7	1170.8	1200
Analysis
Rating	1172.9	1144.7	1170.8	1200
Raw rating	1172.9	1144.7	1170.8	1200
Weighted rating	1172.9	1144.7	1170.8
Weighted performance	528.2	522.8	0
K-factor	36	36	36	36
Floor	744.2	700	700	700
Max/Min rating change allowed	172.3	179.4	172.9	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	1172.9	1144.7	1170.8	1200
New weighted rating	1172.9	1144.7	1170.8	1200
New weighted performance	527.8	522.4	0	0
Temp new rating	1172.9	1144.7	1170.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1172.9	1144.7	1170.8	1200
New K-factor	36	36	36	36
New floor	744.2	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	7	7	0
	5	5	0
History	100	85	15

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U20
Region	Capricorn (LCP)
Province	Limpopo (LP)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 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	81	46	56.79	57.7	1033.2	1090.9
Standard	71	39	54.93	41.9	1046.7	1088.6
Rapid	10	7	70	170	937.2	1107.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1172.9	1144.7	1170.8	1200
2025-09-01	1172.9	1144.7	1170.8	1200
2025-08-01	1172.9	1144.7	1170.8	1200
2025-07-01	1172.9	1144.7	1170.8	1200
2025-06-01	1172.9	1144.7	1170.8	1200
2025-05-01	1172.9	1144.7	1170.8	1200
2025-04-01	1172.9	1144.7	1170.8	1200
2025-03-01	1172.9	1144.7	1170.8	1200
2025-02-01	1172.9	1144.7	1170.8	1200
2025-01-01	1172.9	1144.7	1170.8	1200
2024-12-01	1172.9	1144.7	1170.8	1200
2024-11-01	1172.9	1144.7	1170.8	1200
2024-10-01	1172.9	1144.7	1170.8	1200
2024-09-01	1172.9	1144.7	1170.8	1200
2024-08-01	1172.9	1144.7	1170.8	1200
2024-07-01	1172.9	1144.7	1170.8	1200
2024-06-01	1172.9	1144.7	1170.8	1200
2024-08-01	1172.9	1144.7	1170.8	1200
2024-04-01	1172.9	1144.7	1170.8	1200
2024-03-01	1172.9	1144.7	1170.8	1200
2024-02-01	1172.9	1144.7	1170.8	1200
2024-01-01	1172.9	1144.7	1170.8	1200
2023-12-01	1172.9	1144.7	1170.8	1200
2023-11-01	1172.9	1144.7	1170.8	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	2022 South African Junior Team Chess Championships (U16 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
2	LCP Qualifying October 2021 (O16)	2021-10-23	2021-10-23	Standard	Capricorn (LCP)	5	5	2	Yes	Analysis
3	LCP Qualifying February 2020 (O14)	2020-02-15	2020-02-15	Standard	Capricorn (LCP)	5	5	4	Yes	Analysis
4	2019 South African Junior Team Championships (U14A Girls)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
5	Capricorn Qualifying July 2019 (O16)	2019-07-20	2019-07-20	Standard	Capricorn (LCP)	5	5	2	Yes	Analysis
6	2019 Super 12 Laerskole (Seniors)	2019-05-04	2019-05-04	Rapid	Tshwane (GTP)	5	5	5	Yes	Analysis
7	Capricorn Qualifying May 2019 (O14)	2019-05-18	2019-05-18	Standard	Capricorn (LCP)	5	5	4	Yes	Analysis
8	Capricorn Qualifying March 2019 (U16)	2019-03-09	2019-03-09	Standard	Capricorn (LCP)	5	5	3.5	Yes	Analysis
9	Capricorn Qualifying 2019 (O16)	2019-02-09	2019-02-09	Standard	Capricorn (LCP)	5	5	2.5	Yes	Analysis
10	South African Junior Team Championships 2018 (U12D)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
11	Capricorn Qualifying 02 June 2018 (U12)	2018-06-02	2018-06-02	Standard	Capricorn (LCP)	5	5	4	Yes	Analysis
12	2018 Super 12 (Senior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	2	Yes	Analysis
13	Capricorn Qualifying 10 Maart 2018 (U12)	2018-03-10	2018-03-10	Standard	Capricorn (LCP)	5	5	4	Yes	Analysis
14	Capricorn Qualifying 10 Feb 2018 (U12)	2018-02-10	2018-02-10	Standard	Capricorn (LCP)	5	5	3	Yes	Analysis
15	South African Junior Team Championships 2017 (U12C)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	5	3	Yes	Analysis

#	Games	Start				End
1	9	Tournament Capricorn Qualifying March 2019				Tournament Capricorn Qualifying May 2019
		date 2019-03-09	rnd 4	type Standard	result 1	date 2019-05-18	rnd 2	type Standard	result 1
		Opponent Maleka, K (Kgaugelo)				Opponent Mogashoa, M (Mosweu)
2	4	Tournament LCP Qualifying February 2020				Tournament LCP Qualifying February 2020
		date 2020-02-15	rnd 1	type Standard	result 1	date 2020-02-15	rnd 4	type Standard	result 1
		Opponent Leshabane, P (Phenyo)				Opponent Mmethi, K (Kgabo)
3	4	Tournament Capricorn Qualifying 2019				Tournament Capricorn Qualifying March 2019
		date 2019-02-09	rnd 4	type Standard	result 1	date 2019-03-09	rnd 2	type Standard	result 1
		Opponent Mamathuntsha, LM (Loretta)				Opponent Williams, G (Gift)

#	Games	Start				End
1	4	Tournament LCP Qualifying February 2020				Tournament LCP Qualifying February 2020
		date 2020-02-15	rnd 1	type Standard	result 1	date 2020-02-15	rnd 4	type Standard	result 1
		Opponent Leshabane, P (Phenyo)				Opponent Mmethi, K (Kgabo)
2	4	Tournament Capricorn Qualifying March 2019				Tournament Capricorn Qualifying May 2019
		date 2019-03-09	rnd 4	type Standard	result 1	date 2019-05-18	rnd 2	type Standard	result 1
		Opponent Maleka, K (Kgaugelo)				Opponent Mogashoa, M (Mosweu)
3	4	Tournament Capricorn Qualifying 2019				Tournament Capricorn Qualifying March 2019
		date 2019-02-09	rnd 4	type Standard	result 1	date 2019-03-09	rnd 2	type Standard	result 1
		Opponent Mamathuntsha, LM (Loretta)				Opponent Williams, G (Gift)

#	Games	Start				End
1	5	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 1	type Rapid	result 1	date 2019-05-04	rnd 5	type Rapid	result 1
		Opponent Bezuidenhout, E (Enrika)				Opponent Lotter, B (Berno)
2	2	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 1	type Rapid	result 1	date 2018-05-05	rnd 2	type Rapid	result 1
		Opponent Stander, GS (Gideon Stephanus)				Opponent Nel, J (Juan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament 2019 Super 12 Laerskole				Tournament Capricorn Qualifying May 2019
		date 2019-05-04	rnd 1	type Rapid	result 1	date 2019-05-18	rnd 2	type Standard	result 1
		Opponent Bezuidenhout, E (Enrika)				Opponent Mogashoa, M (Mosweu)
2	4	Tournament LCP Qualifying February 2020				Tournament LCP Qualifying February 2020
		date 2020-02-15	rnd 1	type Standard	result 1	date 2020-02-15	rnd 4	type Standard	result 1
		Opponent Leshabane, P (Phenyo)				Opponent Mmethi, K (Kgabo)
3	4	Tournament Capricorn Qualifying 2019				Tournament Capricorn Qualifying March 2019
		date 2019-02-09	rnd 4	type Standard	result 1	date 2019-03-09	rnd 2	type Standard	result 1
		Opponent Mamathuntsha, LM (Loretta)				Opponent Williams, G (Gift)

#	Games	Start				End
1	4	Tournament LCP Qualifying February 2020				Tournament LCP Qualifying February 2020
		date 2020-02-15	rnd 1	type Standard	result 1	date 2020-02-15	rnd 4	type Standard	result 1
		Opponent Leshabane, P (Phenyo)				Opponent Mmethi, K (Kgabo)
2	4	Tournament Capricorn Qualifying 2019				Tournament Capricorn Qualifying March 2019
		date 2019-02-09	rnd 4	type Standard	result 1	date 2019-03-09	rnd 2	type Standard	result 1
		Opponent Mamathuntsha, LM (Loretta)				Opponent Williams, G (Gift)
3	4	Tournament Capricorn Qualifying 02 June 2018				Tournament South African Junior Team Championships 2018
		date 2018-06-02	rnd 4	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Brits, R (Ronel)				Opponent Osborne, R (Ryan Eugene)

#	Games	Start				End
1	5	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 1	type Rapid	result 1	date 2019-05-04	rnd 5	type Rapid	result 1
		Opponent Bezuidenhout, E (Enrika)				Opponent Lotter, B (Berno)
2	2	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 1	type Rapid	result 1	date 2018-05-05	rnd 2	type Rapid	result 1
		Opponent Stander, GS (Gideon Stephanus)				Opponent Nel, J (Juan)

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	Leso ,L (Lethabo)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
1	Leso ,L (Lethabo)	2	1202.5	990	2	1215.3	990	0	0	0	0	0	0
2	Molopyane ,R (Reatiseditswe)	1	1	425	1	1	425	0	0	0	0	0	0
2	Molopyane ,R (Reatiseditswe)	1	536.4	961.4	1	536.4	961.4	0	0	0	0	0	0
3	Mampuru ,TL (Thabiso)	1	1	425	1	1	425	0	0	0	0	0	0
3	Mampuru ,TL (Thabiso)	1	510	935	1	510	935	0	0	0	0	0	0
4	Rencken ,EM (Emily Maria)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Rencken ,EM (Emily Maria)	1	902.6	477.6	1	883.8	477.6	0	0	0	0	0	0
5	Ndaba ,S (Sandiso)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Ndaba ,S (Sandiso)	1	1009.9	584.9	1	1009.9	584.9	0	0	0	0	0	0
6	Hawkins ,J (Joshua)	1	1	425	1	1	425	0	0	0	0	0	0
6	Hawkins ,J (Joshua)	1	858.4	1283.4	1	855.6	1283.4	0	0	0	0	0	0
7	Sehlapelo ,L (Jindani)	1	1	425	1	1	425	0	0	0	0	0	0
7	Sehlapelo ,L (Jindani)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Mamathuntsha ,LM (Loretta)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mamathuntsha ,LM (Loretta)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Valentine ,J (Jaden)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Valentine ,J (Jaden)	1	1075.9	650.9	1	1021.4	650.9	0	0	0	0	0	0
10	Fana ,A (Awethu)	1	1	425	1	1	425	0	0	0	0	0	0
10	Fana ,A (Awethu)	1	1143.3	1568.3	1	1148.4	1568.3	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

Zanna, J (Jahkuska)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms