Chess South Africa Ratings Database

PLAYER PAGE

Personal

Zanna, J (Joy)

Chess SA id

2130116097

FIDE id

Date of birth

2013-02-01 (U14)

Gender

Female

Region

Capricorn (LCP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-03-11

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1242.7	1260.7	1200	1200
Raw rating	1242.7	1260.7	1200	1200
Weighted rating	1242.7	1260.7	1200	1200
Weighted performance	752.2	751.2	0	0
Floor	776.7	792	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	156	152.1	165.8	165.8
Highest rating	1276.7 2022-06-01	1292 2022-06-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1276.7 2022-06-01	1292 2022-06-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1276.7 2025-02-01	1292 2025-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1236.6 2022-05-01	1235.7 2022-05-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1242.7	1260.7	1200	1200
Analysis
Rating	1242.7	1260.7	1200	1200
Raw rating	1242.7	1260.7	1200	1200
Weighted rating	1242.7	1260.7	1200
Weighted performance	752.2	751.2	0
K-factor	36	36	36	36
Floor	776.7	792	700	700
Max/Min rating change allowed	156	152.1	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	1242.7	1260.7	1200	1200
New weighted rating	1242.7	1260.7	1200	1200
New weighted performance	751.7	750.8	0	0
Temp new rating	1242.7	1260.7	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1242.7	1260.7	1200	1200
New K-factor	36	36	36	36
New floor	776.7	792	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	5	5
	11	11
	0	0
History	26	26

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U14
Region	Capricorn (LCP)
Province	Limpopo (LP)
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	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	26	14	53.85	32.7	1237.1	1269.8
Standard	26	14	53.85	32.7	1237.1	1269.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1242.7	1260.7	1200	1200
2025-09-01	1242.7	1260.7	1200	1200
2025-08-01	1242.7	1260.7	1200	1200
2025-07-01	1242.7	1260.7	1200	1200
2025-06-01	1242.7	1260.7	1200	1200
2025-05-01	1242.7	1260.7	1200	1200
2025-04-01	1242.7	1260.7	1200	1200
2025-03-01	1242.7	1260.7	1200	1200
2025-02-01	1242.7	1260.7	1200	1200
2025-01-01	1242.7	1260.7	1200	1200
2024-12-01	1242.7	1260.7	1200	1200
2024-11-01	1242.7	1260.7	1200	1200
2024-10-01	1242.7	1260.7	1200	1200
2024-09-01	1242.7	1260.7	1200	1200
2024-08-01	1242.7	1260.7	1200	1200
2024-07-01	1242.7	1260.7	1200	1200
2024-06-01	1242.7	1260.7	1200	1200
2024-08-01	1242.7	1260.7	1200	1200
2024-04-01	1242.7	1260.7	1200	1200
2024-03-01	1242.7	1260.7	1200	1200
2024-02-01	1242.7	1260.7	1200	1200
2024-01-01	1242.7	1260.7	1200	1200
2023-12-01	1242.7	1260.7	1200	1200
2023-11-01	1242.7	1260.7	1200	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	Capricorn Qualifying March 2023 (U12)	2023-03-11	2023-03-11	Standard	Capricorn (LCP)	5	5	4	Yes	Analysis
2	2022 South African Junior Team Chess Championships (U10 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	6	0	Yes	Analysis
3	Capricorn Qualifying May 2022 (U10)	2022-05-21	2022-05-21	Standard	Capricorn (LCP)	5	5	5	Yes	Analysis
4	LCP Qualifying February 2020 (O10)	2020-02-15	2020-02-15	Standard	Capricorn (LCP)	5	5	3	Yes	Analysis
5	Capricorn Qualifying April 2019 (O10)	2019-04-13	2019-04-13	Standard	Capricorn (LCP)	5	5	2	Yes	Analysis

#	Games	Start				End
1	6	Tournament LCP Qualifying February 2020				Tournament Capricorn Qualifying May 2022
		date 2020-02-15	rnd 5	type Standard	result 1	date 2022-05-21	rnd 5	type Standard	result 1
		Opponent Moloto, B (Bonolo)				Opponent Janse Van Rensburg, Z (Zach)
2	4	Tournament Capricorn Qualifying March 2023				Tournament Capricorn Qualifying March 2023
		date 2023-03-11	rnd 1	type Standard	result 1	date 2023-03-11	rnd 4	type Standard	result 1
		Opponent Ramatswe, K (Kgetho)				Opponent Moyo, K (Kayla)
3	1	Tournament LCP Qualifying February 2020				Tournament LCP Qualifying February 2020
		date 2020-02-15	rnd 3	type Standard	result 1	date 2020-02-15	rnd 3	type Standard	result 1
		Opponent Moloto, T (Thapelo)				Opponent Moloto, T (Thapelo)

#	Games	Start				End
1	6	Tournament LCP Qualifying February 2020				Tournament Capricorn Qualifying May 2022
		date 2020-02-15	rnd 5	type Standard	result 1	date 2022-05-21	rnd 5	type Standard	result 1
		Opponent Moloto, B (Bonolo)				Opponent Janse Van Rensburg, Z (Zach)
2	4	Tournament Capricorn Qualifying March 2023				Tournament Capricorn Qualifying March 2023
		date 2023-03-11	rnd 1	type Standard	result 1	date 2023-03-11	rnd 4	type Standard	result 1
		Opponent Ramatswe, K (Kgetho)				Opponent Moyo, K (Kayla)
3	1	Tournament LCP Qualifying February 2020				Tournament LCP Qualifying February 2020
		date 2020-02-15	rnd 3	type Standard	result 1	date 2020-02-15	rnd 3	type Standard	result 1
		Opponent Moloto, T (Thapelo)				Opponent Moloto, T (Thapelo)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament LCP Qualifying February 2020				Tournament Capricorn Qualifying May 2022
		date 2020-02-15	rnd 5	type Standard	result 1	date 2022-05-21	rnd 5	type Standard	result 1
		Opponent Moloto, B (Bonolo)				Opponent Janse Van Rensburg, Z (Zach)
2	4	Tournament Capricorn Qualifying March 2023				Tournament Capricorn Qualifying March 2023
		date 2023-03-11	rnd 1	type Standard	result 1	date 2023-03-11	rnd 4	type Standard	result 1
		Opponent Ramatswe, K (Kgetho)				Opponent Moyo, K (Kayla)
3	1	Tournament LCP Qualifying February 2020				Tournament LCP Qualifying February 2020
		date 2020-02-15	rnd 3	type Standard	result 1	date 2020-02-15	rnd 3	type Standard	result 1
		Opponent Moloto, T (Thapelo)				Opponent Moloto, T (Thapelo)

#	Games	Start				End
1	6	Tournament LCP Qualifying February 2020				Tournament Capricorn Qualifying May 2022
		date 2020-02-15	rnd 5	type Standard	result 1	date 2022-05-21	rnd 5	type Standard	result 1
		Opponent Moloto, B (Bonolo)				Opponent Janse Van Rensburg, Z (Zach)
2	4	Tournament Capricorn Qualifying March 2023				Tournament Capricorn Qualifying March 2023
		date 2023-03-11	rnd 1	type Standard	result 1	date 2023-03-11	rnd 4	type Standard	result 1
		Opponent Ramatswe, K (Kgetho)				Opponent Moyo, K (Kayla)
3	1	Tournament LCP Qualifying February 2020				Tournament LCP Qualifying February 2020
		date 2020-02-15	rnd 3	type Standard	result 1	date 2020-02-15	rnd 3	type Standard	result 1
		Opponent Moloto, T (Thapelo)				Opponent Moloto, T (Thapelo)

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	Moyo ,K (Kayla)	2	2	425	2	2	425	0	0	0	0	0	0
1	Moyo ,K (Kayla)	2	1212.8	1637.8	2	1214.2	1637.8	0	0	0	0	0	0
2	Lekgothoane ,TS (Stanley)	2	1	0	2	1	0	0	0	0	0	0	0
2	Lekgothoane ,TS (Stanley)	2	1142.9	1142.9	2	1133.2	1142.9	0	0	0	0	0	0
3	Verreynne ,K (Kobus)	1	1	425	1	1	425	0	0	0	0	0	0
3	Verreynne ,K (Kobus)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Ramatshwe ,K (Kgetho)	1	1	425	1	1	425	0	0	0	0	0	0
4	Ramatshwe ,K (Kgetho)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Dafel ,H (Henning)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Dafel ,H (Henning)	1	1245.7	820.7	1	1253.6	820.7	0	0	0	0	0	0
6	Opperman ,N (Naude)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Opperman ,N (Naude)	1	1377.9	952.9	1	1376.1	952.9	0	0	0	0	0	0
7	Sathish ,A (Aarya)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Sathish ,A (Aarya)	1	1274.4	849.4	1	1271.3	849.4	0	0	0	0	0	0
8	Sebetola ,TJ (Tumelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Sebetola ,TJ (Tumelo)	1	1218.2	793.2	1	1220.2	793.2	0	0	0	0	0	0
9	Mothudi ,N (Neo)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Mothudi ,N (Neo)	1	1088	663	1	1077.6	663	0	0	0	0	0	0
10	Driscoll ,S (Samuel)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Driscoll ,S (Samuel)	1	1450.4	1025.4	1	1518.4	1025.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Zanna, J (Joy)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms