Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jantjies, Z (Zoey)

Chess SA id

2110192534

FIDE id

Date of birth

2011-06-30 (U16)

Gender

Female

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-06-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1115.4	1147.5	1139.8	1200
Raw rating	1115.4	1147.5	1139.8	1200
Weighted rating	1105.2	1141.4	1122.7	1200
Weighted performance	913.1	0	976.6	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	187.1	178.7	180.7	165.8
Highest rating	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted performance	1200 2024-12-01	1200 2024-02-01	1200 2024-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1115.4	1147.5	1139.8	1200
Analysis
Rating	1115.4	1147.5	1139.8	1200
Raw rating	1115.4	1147.5	1139.8	1200
Weighted rating	1105.2	1141.4	1122.7
Weighted performance	913.1	0	976.6
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	187.1	178.7	180.7	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	1115.4	1147.5	1139.8	1200
New weighted rating	1104.8	1141	1123.5	1200
New weighted performance	907.3	0	970.3	0
Temp new rating	1115.4	1147.5	1139.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1115.4	1147.5	1139.8	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	14	5	9
	26	10	16
	0	0	0
	0	0	0
	0	0	0
History	40	15	25

Games since
	Main 40	Standard 15		Rapid 25		Blitz 0
Gender	Female
Age group	U16
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	4464		1505		171
Female	1144		462		57
U16	704		246		31
U16 Female	225		93		12
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	1891		939		236
Female	464		243		73
U16	310		152		43
U16 Female	79		43		13
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	14	4	28.57	-182.1	1225.5	1043.3
Standard	5	0.5	10	-340	1233.9	893.9
Rapid	9	3.5	38.89	-94.4	1220.8	1126.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	40	10	25	-212.5	1199.9	987.4
Standard	15	1.5	10	-340	1229.1	889.1
Rapid	25	8.5	34	-136	1182.4	1046.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1115.4	1147.5	1139.8	1200
2025-09-30	1115.4	1147.5	1139.8	1200
2025-09-01	1115.4	1147.5	1139.8	1200
2025-08-01	1115.4	1147.5	1139.8	1200
2025-07-01	1113.3	1147.5	1132.9	1200
2025-06-01	1113.3	1147.5	1132.9	1200
2025-05-01	1113.3	1147.5	1132.9	1200
2025-04-01	1113.1	1144.9	1132.9	1200
2025-03-01	1118.4	1151.1	1132.9	1200
2025-02-01	1114.9	1147.3	1123.6	1200
2025-01-01	1036	1075.1	1075.6	1200
2024-12-01	1036	1075.1	1075.6	1200
2024-11-01	1036	1075.1	1075.6	1200
2024-10-01	1036	1075.1	1075.6	1200
2024-09-01	1039.3	1090.9	1075.6	1200
2024-08-01	1115	1200	1075.6	1200
2024-07-01	1115	1200	1075.6	1200
2024-09-01	1153	1200	1120	1200
2024-05-01	1183	1200	1170.8	1200
2024-04-01	1183	1200	1170.8	1200
2024-03-01	1183	1200	1170.8	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	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	Upper West Coast Top Schools 2025 (U15)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
2	West Coast Schools Chess Prestige 2025 (U15 Girls)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	5	0.5	Yes	Analysis
3	Upper West Coast Presrige 2025 (U15 Girls)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	4	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Upper West Coast Top Schools 2025 (U15)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
2	West Coast Schools Chess Prestige 2025 (U15 Girls)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	5	0.5	Yes	Analysis
3	Upper West Coast Presrige 2025 (U15 Girls)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	4	1.5	Yes	Analysis
4	Western Cape Top Schools Championship 2024 (U13 Girls)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	5	1	Yes	Analysis
5	Pedro Booyse Top Schools Championships 2024 (U13 Girls)	2024-07-20	2024-07-20	Standard	West Coast (WCU)	6	5	0	Yes	Analysis
6	Western Cape - Brian Raubenheimer Development Tournament 2024 (U13 Girls)	2024-06-08	2024-06-08	Rapid	Overberg (WOS)	6	6	1.5	Yes	Analysis
7	Brenton Cupido West Coast Schools Championship 2024 (U13)	2024-05-24	2024-05-24	Rapid	West Coast (WCU)	5	5	1.5	Yes	Analysis
8	Bo-Weskus Skole Prestige 2024 (O13 Dogters)	2024-02-10	2024-02-10	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Upper West Coast Top Schools 2025				Tournament Upper West Coast Top Schools 2025
		date 2025-06-14	rnd 2	type Rapid	result 1	date 2025-06-14	rnd 3	type Rapid	result 1
		Opponent Rasmus, E (Emmerich)				Opponent Vermeulen, P (Peigh-Lene)
2	2	Tournament Upper West Coast Presrige 2025				Tournament Upper West Coast Presrige 2025
		date 2025-02-22	rnd 3	type Rapid	result 0.5	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Tieties, F (Faith)				Opponent Cloete, A (Akeezia)
3	2	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-06-08	rnd 3	type Rapid	result 1	date 2024-06-08	rnd 4	type Rapid	result 0.5
		Opponent Van Tonder, M (Mieke)				Opponent Jezelle, M (Massyn)

#	Games	Start				End
1	1	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 3	type Standard	result 0.5	date 2025-03-08	rnd 3	type Standard	result 0.5
		Opponent Van Wyk, E (Emmelyn)				Opponent Van Wyk, E (Emmelyn)
2	1	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-09-01	rnd 6	type Standard	result 1	date 2024-09-01	rnd 6	type Standard	result 1
		Opponent Farmer, P (Perslin)				Opponent Farmer, P (Perslin)

#	Games	Start				End
1	2	Tournament Upper West Coast Top Schools 2025				Tournament Upper West Coast Top Schools 2025
		date 2025-06-14	rnd 2	type Rapid	result 1	date 2025-06-14	rnd 3	type Rapid	result 1
		Opponent Rasmus, E (Emmerich)				Opponent Vermeulen, P (Peigh-Lene)
2	2	Tournament Upper West Coast Presrige 2025				Tournament Upper West Coast Presrige 2025
		date 2025-02-22	rnd 3	type Rapid	result 0.5	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Tieties, F (Faith)				Opponent Cloete, A (Akeezia)
3	2	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-06-08	rnd 3	type Rapid	result 1	date 2024-06-08	rnd 4	type Rapid	result 0.5
		Opponent Van Tonder, M (Mieke)				Opponent Jezelle, M (Massyn)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Upper West Coast Top Schools 2025				Tournament Upper West Coast Top Schools 2025
		date 2025-06-14	rnd 2	type Rapid	result 1	date 2025-06-14	rnd 3	type Rapid	result 1
		Opponent Rasmus, E (Emmerich)				Opponent Vermeulen, P (Peigh-Lene)
2	2	Tournament Bo-Weskus Skole Prestige 2024				Tournament Bo-Weskus Skole Prestige 2024
		date 2024-02-10	rnd 2	type Rapid	result 1	date 2024-02-10	rnd 3	type Rapid	result 1
		Opponent Snel, R (Ray-Leigh)				Opponent Scheepers, J (Jemimah)
3	1	Tournament Upper West Coast Presrige 2025				Tournament Upper West Coast Presrige 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Cloete, A (Akeezia)				Opponent Cloete, A (Akeezia)

#	Games	Start				End
1	1	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-09-01	rnd 6	type Standard	result 1	date 2024-09-01	rnd 6	type Standard	result 1
		Opponent Farmer, P (Perslin)				Opponent Farmer, P (Perslin)

#	Games	Start				End
1	2	Tournament Upper West Coast Top Schools 2025				Tournament Upper West Coast Top Schools 2025
		date 2025-06-14	rnd 2	type Rapid	result 1	date 2025-06-14	rnd 3	type Rapid	result 1
		Opponent Rasmus, E (Emmerich)				Opponent Vermeulen, P (Peigh-Lene)
2	2	Tournament Bo-Weskus Skole Prestige 2024				Tournament Bo-Weskus Skole Prestige 2024
		date 2024-02-10	rnd 2	type Rapid	result 1	date 2024-02-10	rnd 3	type Rapid	result 1
		Opponent Snel, R (Ray-Leigh)				Opponent Scheepers, J (Jemimah)
3	1	Tournament Upper West Coast Presrige 2025				Tournament Upper West Coast Presrige 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Cloete, A (Akeezia)				Opponent Cloete, A (Akeezia)

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	Arries ,G (Geroneeze)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Arries ,G (Geroneeze)	3	1143.5	718.5	3	1075.3	718.5	0	0	0	0	0	0
2	Hendricks ,T (Tamia)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Hendricks ,T (Tamia)	2	1205.4	780.4	2	1177.3	780.4	0	0	0	0	0	0
3	Jansen ,L (Lumay)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Jansen ,L (Lumay)	2	1177.4	752.4	2	1154.6	752.4	0	0	0	0	0	0
4	Cardinal ,J (Jacelynn)	2	0	-425	0	0	0	2	0	-425	0	0	0
4	Cardinal ,J (Jacelynn)	2	1303.1	878.1	0	0	0	2	1359.9	878.1	0	0	0
5	Van Der Linde ,L (Luandi)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Van Der Linde ,L (Luandi)	1	1458	1033	1	1467.3	1033	0	0	0	0	0	0
6	Sauls ,G (Glinnis-Lynn)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Sauls ,G (Glinnis-Lynn)	1	1348.1	923.1	1	1344.5	923.1	0	0	0	0	0	0
7	Cloete ,T (Tashlynn)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Cloete ,T (Tashlynn)	1	1210.6	785.6	1	1141.6	785.6	0	0	0	0	0	0
8	Van Wyk ,E (Emmelyn)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Van Wyk ,E (Emmelyn)	1	1190.7	1190.7	1	1200	1190.7	0	0	0	0	0	0
9	Vermeulen ,P (Peigh-Lene)	1	1	425	0	0	0	1	1	425	0	0	0
9	Vermeulen ,P (Peigh-Lene)	1	1147.8	1572.8	0	0	0	1	1252.7	1572.8	0	0	0
10	Jacobs ,N (Nicholas)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Jacobs ,N (Nicholas)	1	1186.6	761.6	0	0	0	1	1210.4	761.6	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Jantjies, Z (Zoey)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms