Chess South Africa Ratings Database

PLAYER PAGE

Personal

Stoffels, Z (Zarah)

Chess SA id

2180314657

FIDE id

Date of birth

2018-09-25 (U10)

Gender

Female

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-11-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1174.1	1170.3	1197.4	1200
Raw rating	1116.9	1106.4	1183.4	1200
Weighted rating	1174.1	1170.3	1197.4	1200
Weighted performance	918.9	847.1	0	0
Floor	699.9	699.9	700	700
K-factor	40	40	36	36
Min/Max rating change allowed	186.7	189.5	169.8	165.8
Highest rating	1199.9 2025-02-06	1199.9 2025-02-06	1200 2025-03-01	1200 2025-03-01
Highest raw rating	1199.9 2025-02-06	1199.9 2025-02-06	1200 2025-03-01	1200 2025-03-01
Highest weighted rating	1199.9 2025-02-06	1199.9 2025-02-06	1200 2025-03-01	1200 2025-03-01
Highest weighted performance	1024 2025-05-05	1025.8 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-5.5	-6.1	-1.2	0
New rating	1168.6	1164.2	1196.2	1200
Analysis
Rating	1174.1	1170.3	1197.4	1200
Raw rating	1116.9	1106.4	1183.4	1200
Weighted rating	1174.1	1170.3	1197.4
Weighted performance	918.9	847.1	0
K-factor	40	40	36	36
Floor	699.9	699.9	700	700
Max/Min rating change allowed	186.7	189.5	169.8	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	1116.9	1106.4	1183.4	1200
New weighted rating	1168.6	1164.2	1196.2	1200
New weighted performance	912.6	841.1	0	0
Temp new rating	1168.6	1164.2	1196.2	1200
Temp new rating +/-	-5.5	-6.1	-1.2	0
Final new rating +/-	-5.5	-6.1	-1.2	0
New rating	1168.6	1164.2	1196.2	1200
New K-factor	40	40	36	36
New floor	699.9	699.9	700	700

Item	Main	Standard	Rapid
	0	0	0
	42	37	5
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	42	37	5

Games since
	Main 42	Standard 37		Rapid 5		Blitz 0
Gender	Female
Age group	U8
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	4265		1437		385
Female	1040		417		127
U8	79		38		19
U8 Female	34		18		10
Standard
	RSA		Province		Region
Overall	4228		1200		416
Female	1042		384		146
U8	84		39		29
U8 Female	34		17		13
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 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	42	11.5	27.38	-192.3	1212.8	1020.5
Standard	37	9.5	25.68	-206.8	1208.8	1002.1
Rapid	5	2	40	-85	1241.9	1156.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	42	11.5	27.38	-192.3	1212.8	1020.5
Standard	37	9.5	25.68	-206.8	1208.8	1002.1
Rapid	5	2	40	-85	1241.9	1156.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1116.9	1106.4	1183.4	1200
2025-11-30	1116.9	1106.4	1183.4	1200
2025-11-01	1119.7	1106.4	1200	1200
2025-09-30	1119.7	1106.4	1200	1200
2025-09-01	1198.4	1198	1200	1200
2025-08-01	1198.4	1198	1200	1200
2025-07-01	1198.1	1197.7	1200	1200
2025-06-01	1193.4	1192.1	1200	1200
2025-05-01	1195.7	1195.1	1200	1200
2025-04-01	1193	1191.6	1200	1200
2025-03-01	1198.6	1198.3	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	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	Voories Skaaktoernooi 2025 (O7)	2025-11-08	2025-11-08	Rapid	Eden (WEG)	5	5	2	Yes	Analysis
2	Western Cape Schools - Top Schools 2025 (U7)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	0	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U7 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	5	0.5	Yes	Analysis
4	Eden Chess Trials 2 2025 (U8)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	9	3	Yes	Analysis
5	Eden Schools Chess Trials 1 2025 (U7 Girls)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	2	Yes	Analysis
6	George Schools Chess Trials 3 2025 (U7 Girls)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	4	0	Yes	Analysis
7	George Schools Chess Trials 2 2025 (U7 Girls)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	2	Yes	Analysis
8	George Schools Chess Trials 1 2025 (U7 Gils)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	4	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-08	rnd 4	type Standard	result 0.5	date 2025-03-15	rnd 1	type Standard	result 0.5
		Opponent Jansen, J (Jenily)				Opponent Baker, G (Gabby)
2	3	Tournament George Schools Chess Trials 1 2025				Tournament George Schools Chess Trials 1 2025
		date 2025-02-01	rnd 2	type Standard	result 1	date 2025-02-01	rnd 4	type Standard	result 0.5
		Opponent Kock, R (Reese)				Opponent Baker, G (Gabby)
3	2	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-04-12	rnd 8	type Standard	result 1	date 2025-04-12	rnd 9	type Standard	result 0.5
		Opponent Jansen, J (Jenily)				Opponent Briekwa, L (Lucian)

#	Games	Start				End
1	3	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-08	rnd 4	type Standard	result 0.5	date 2025-03-15	rnd 1	type Standard	result 0.5
		Opponent Jansen, J (Jenily)				Opponent Baker, G (Gabby)
2	3	Tournament George Schools Chess Trials 1 2025				Tournament George Schools Chess Trials 1 2025
		date 2025-02-01	rnd 2	type Standard	result 1	date 2025-02-01	rnd 4	type Standard	result 0.5
		Opponent Kock, R (Reese)				Opponent Baker, G (Gabby)
3	2	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-04-12	rnd 8	type Standard	result 1	date 2025-04-12	rnd 9	type Standard	result 0.5
		Opponent Jansen, J (Jenily)				Opponent Briekwa, L (Lucian)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-04-12	rnd 8	type Standard	result 1	date 2025-04-12	rnd 8	type Standard	result 1
		Opponent Jansen, J (Jenily)				Opponent Jansen, J (Jenily)
2	1	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-04-12	rnd 6	type Standard	result 1	date 2025-04-12	rnd 6	type Standard	result 1
		Opponent Hendricks, I (Immorelle)				Opponent Hendricks, I (Immorelle)
3	1	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Galant, F (Francelene)				Opponent Galant, F (Francelene)

#	Games	Start				End
1	1	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-04-12	rnd 8	type Standard	result 1	date 2025-04-12	rnd 8	type Standard	result 1
		Opponent Jansen, J (Jenily)				Opponent Jansen, J (Jenily)
2	1	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-04-12	rnd 6	type Standard	result 1	date 2025-04-12	rnd 6	type Standard	result 1
		Opponent Hendricks, I (Immorelle)				Opponent Hendricks, I (Immorelle)
3	1	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Galant, F (Francelene)				Opponent Galant, F (Francelene)

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	Anthony ,A (Avia)	4	0.5	-318.8	3	0.5	-283.3	1	0	-425	0	0	0
1	Anthony ,A (Avia)	4	1221.7	902.9	3	1201.1	938.4	1	1200	796.7	0	0	0
2	Kock ,R (Reese)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
2	Kock ,R (Reese)	3	1203.8	1062.2	3	1205.8	1062.2	0	0	0	0	0	0
3	Baker ,G (Gabby)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
3	Baker ,G (Gabby)	3	1207	1065.4	3	1208.5	1065.4	0	0	0	0	0	0
4	Ruiters ,Z (Zayaan)	3	2	141.7	2	1	0	1	1	425	0	0	0
4	Ruiters ,Z (Zayaan)	3	1199.6	1341.2	2	1194.4	1199.6	1	1199.3	1624.6	0	0	0
5	Hendricks ,I (Immorelle)	2	1	0	2	1	0	0	0	0	0	0	0
5	Hendricks ,I (Immorelle)	2	1198	1198	2	1197.7	1198	0	0	0	0	0	0
6	Appiah Baden ,E (Emily Joy)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Appiah Baden ,E (Emily Joy)	2	1206.3	781.3	2	1207.6	781.3	0	0	0	0	0	0
7	de Wet ,Z (Zoey)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	de Wet ,Z (Zoey)	2	1202.9	777.9	2	1227.2	777.9	0	0	0	0	0	0
8	Jansen ,J (Janily)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
8	Jansen ,J (Janily)	2	1194.8	1407.2	2	1193.8	1407.2	0	0	0	0	0	0
9	Kotze ,M (Mieke)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Kotze ,M (Mieke)	1	1201.1	776.1	1	1200	776.1	0	0	0	0	0	0
10	Steel ,L (Layla)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Steel ,L (Layla)	1	1215.1	790.1	1	1219.8	790.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Stoffels, Z (Zarah)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms