Chess South Africa Ratings Database

PLAYER PAGE

Personal

Herder, J (Jaymiree)

Chess SA id

2120324800

FIDE id

Date of birth

2012-12-18 (U14)

Gender

Female

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1177.8	1187.7	1181.1	1200
Raw rating	1058.6	1121.2	1079.4	1200
Weighted rating	1177.8	1187.7	1181.1	1200
Weighted performance	0	0	0	0
Floor	699.9	699.9	699.9	700
K-factor	40	40	40	40
Min/Max rating change allowed	202.8	185.5	196.9	165.8
Highest rating	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05
Highest raw rating	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05
Highest weighted rating	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-10.4	-5.8	-8.8	0
New rating	1167.5	1181.9	1172.3	1200
Analysis
Rating	1177.8	1187.7	1181.1	1200
Raw rating	1058.6	1121.2	1079.4	1200
Weighted rating	1177.8	1187.7	1181.1
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	699.9	699.9	699.9	700
Max/Min rating change allowed	202.8	185.5	196.9	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	1058.6	1121.2	1079.4	1200
New weighted rating	1167.5	1181.9	1172.3	1200
New weighted performance	0	0	0	0
Temp new rating	1167.5	1181.9	1172.3	1200
Temp new rating +/-	-10.4	-5.8	-8.8	0
Final new rating +/-	-10.4	-5.8	-8.8	0
New rating	1167.5	1181.9	1172.3	1200
New K-factor	40	40	40	36
New floor	699.9	699.9	699.9	700

Item	Main	Standard	Rapid
	0	0	0
	13	4	9
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	13	4	9

Games since
	Main 13	Standard 4		Rapid 9		Blitz 0
Gender	Female
Age group	U14
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
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	13	1.5	11.54	-326.9	1204.1	877.1
Standard	4	0	0	-425	1195.5	770.5
Rapid	9	1.5	16.67	-283.3	1207.9	924.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	13	1.5	11.54	-326.9	1204.1	877.1
Standard	4	0	0	-425	1195.5	770.5
Rapid	9	1.5	16.67	-283.3	1207.9	924.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1058.6	1121.2	1079.4	1200
2025-09-01	1058.6	1121.2	1079.4	1200
2025-08-01	1200	1200	1200	1200
2025-07-01	1200	1200	1200	1200
2025-06-01	1200	1200	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	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
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	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
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	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	Cape Winelands Top Schools 2025 (U15-U19 Girls)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	0.5	Yes	Analysis
2	Western Cape Women�s Championship 2025 (U14)	2025-08-09	2025-08-09	Standard	West Coast (WCU)	5	4	0	Yes	Analysis
3	Cape Winelands Schools Development 2025 (U13 Girls)	2025-08-02	2025-08-02	Rapid	Cape Winelands (WCW)	5	4	1	Yes	Analysis
4	Cape Winelands Schools Development 2025 (U11 Girls)	2025-08-02	2025-08-02	Rapid	Cape Winelands (WCW)	5	1	0	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Winelands Top Schools 2025 (U15-U19 Girls)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	0.5	Yes	Analysis
2	Western Cape Women�s Championship 2025 (U14)	2025-08-09	2025-08-09	Standard	West Coast (WCU)	5	4	0	Yes	Analysis
3	Cape Winelands Schools Development 2025 (U13 Girls)	2025-08-02	2025-08-02	Rapid	Cape Winelands (WCW)	5	4	1	Yes	Analysis
4	Cape Winelands Schools Development 2025 (U11 Girls)	2025-08-02	2025-08-02	Rapid	Cape Winelands (WCW)	5	1	0	Yes	Analysis

#	Games	Start				End
1	1	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 0.5	date 2025-08-23	rnd 2	type Rapid	result 0.5
		Opponent Van Der Bank, K (Karli)				Opponent Van Der Bank, K (Karli)
2	1	Tournament Cape Winelands Schools Development 2025				Tournament Cape Winelands Schools Development 2025
		date 2025-08-02	rnd 4	type Rapid	result 1	date 2025-08-02	rnd 4	type Rapid	result 1
		Opponent Adonis, K (Kieshca)				Opponent Adonis, K (Kieshca)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 0.5	date 2025-08-23	rnd 2	type Rapid	result 0.5
		Opponent Van Der Bank, K (Karli)				Opponent Van Der Bank, K (Karli)
2	1	Tournament Cape Winelands Schools Development 2025				Tournament Cape Winelands Schools Development 2025
		date 2025-08-02	rnd 4	type Rapid	result 1	date 2025-08-02	rnd 4	type Rapid	result 1
		Opponent Adonis, K (Kieshca)				Opponent Adonis, K (Kieshca)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Development 2025				Tournament Cape Winelands Schools Development 2025
		date 2025-08-02	rnd 4	type Rapid	result 1	date 2025-08-02	rnd 4	type Rapid	result 1
		Opponent Adonis, K (Kieshca)				Opponent Adonis, K (Kieshca)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Development 2025				Tournament Cape Winelands Schools Development 2025
		date 2025-08-02	rnd 4	type Rapid	result 1	date 2025-08-02	rnd 4	type Rapid	result 1
		Opponent Adonis, K (Kieshca)				Opponent Adonis, K (Kieshca)

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	Horse ,T (Tihano)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Horse ,T (Tihano)	1	1159.8	734.8	1	1168.6	734.8	0	0	0	0	0	0
2	Swartz ,A (Ashan)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Swartz ,A (Ashan)	1	1287.6	862.6	1	1295.5	862.6	0	0	0	0	0	0
3	Farao ,K (Kaylin)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Farao ,K (Kaylin)	1	1173.4	748.4	1	1190.3	748.4	0	0	0	0	0	0
4	Sekoe ,M (Mellinda)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Sekoe ,M (Mellinda)	1	1161.2	736.2	1	1171.8	736.2	0	0	0	0	0	0
5	Booysen ,I (Ilya)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	Booysen ,I (Ilya)	1	1139.7	714.7	0	0	0	1	1196.2	714.7	0	0	0
6	Reynecke ,K (Kiana)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Reynecke ,K (Kiana)	1	1196.2	771.2	0	0	0	1	1200	771.2	0	0	0
7	Crotz ,K (Kirsten)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Crotz ,K (Kirsten)	1	1360.3	935.3	0	0	0	1	1278.7	935.3	0	0	0
8	Van Der Bank ,K (Karli)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
8	Van Der Bank ,K (Karli)	1	1200	1200	0	0	0	1	1200	1200	0	0	0
9	Faroa ,K (Kaylin)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Faroa ,K (Kaylin)	1	1179.4	754.4	0	0	0	1	1164.3	754.4	0	0	0
10	Williams ,D (Delicia)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Williams ,D (Delicia)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Herder, J (Jaymiree)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms