Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coetzer, J (Jessica)

Chess SA id

2110136513

FIDE id

Date of birth

2011-01-11 (U16)

Gender

Female

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-01-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1091.5	1074.6	1200	1200
Raw rating	1091.5	1074.6	1200	1200
Weighted rating	1086.9	1069.7	1200	1200
Weighted performance	715.8	712.7	0	0
Floor	717.6	718	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	193.5	198.2	165.8	165.8
Highest rating	1217.6 2022-03-01	1218 2022-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1217.6 2022-03-01	1218 2022-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1217.6 2023-02-01	1218 2022-03-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1214.8 2022-05-01	1211.5 2022-01-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1091.5	1074.6	1200	1200
Analysis
Rating	1091.5	1074.6	1200	1200
Raw rating	1091.5	1074.6	1200	1200
Weighted rating	1086.9	1069.7	1200
Weighted performance	715.8	712.7	0
K-factor	36	36	36	36
Floor	717.6	718	700	700
Max/Min rating change allowed	193.5	198.2	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	1091.5	1074.6	1200	1200
New weighted rating	1087.2	1070.1	1200	1200
New weighted performance	715.5	712.4	0	0
Temp new rating	1091.5	1074.6	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1091.5	1074.6	1200	1200
New K-factor	36	36	36	36
New floor	717.6	718	700	700

Item	Main	Standard
	0	0
	0	0
	4	4
	19	19
	34	34
	0	0
History	57	57

Games since
	Main 9	Standard 9		Rapid 0		Blitz 0
Gender	Female
Age group	U16
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
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	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
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	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	57	22.5	39.47	-89.5	1222.9	1133.5
Standard	57	22.5	39.47	-89.5	1222.9	1133.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1091.5	1074.6	1200	1200
2025-09-01	1091.5	1074.6	1200	1200
2025-08-01	1091.5	1074.6	1200	1200
2025-07-01	1091.5	1074.6	1200	1200
2025-06-01	1091.5	1074.6	1200	1200
2025-05-01	1091.5	1074.6	1200	1200
2025-04-01	1091.5	1074.6	1200	1200
2025-03-01	1091.5	1074.6	1200	1200
2025-02-01	1091.5	1074.6	1200	1200
2025-01-01	1078.4	1060.6	1200	1200
2024-12-01	1078.4	1060.6	1200	1200
2024-11-01	1078.4	1060.6	1200	1200
2024-10-01	1078.4	1060.6	1200	1200
2024-09-01	1078.4	1060.6	1200	1200
2024-08-01	1078.4	1060.6	1200	1200
2024-07-01	1078.4	1060.6	1200	1200
2024-06-01	1078.4	1060.6	1200	1200
2024-08-01	1078.4	1060.6	1200	1200
2024-04-01	1078.4	1060.6	1200	1200
2024-03-01	1078.4	1060.6	1200	1200
2024-02-01	1078.4	1060.6	1200	1200
2024-01-01	1112.9	1095.2	1200	1200
2023-12-01	1112.9	1095.2	1200	1200
2023-11-01	1112.9	1095.2	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	2024 Gauteng Inter-Region Chess Championship (U14 Girls)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis
2	NWU Vaal Open 2023 (C)	2023-10-14	2023-10-14	Standard	Sedibeng (GSV)	5	5	1	Yes	Analysis
3	Gauteng D7 Teams 2023 (U13)	2023-08-12	2023-08-12	Standard	Sedibeng (GSV)	5	4	0	Yes	Analysis
4	Gauteng Schools D7 2023 (U13 Girls)	2023-05-20	2023-05-20	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
5	Heidelberg Open 2023 (C)	2023-02-04	2023-02-04	Standard	Sedibeng (GSV)	5	5	1.5	Yes	Analysis
6	Dr Peter Hangelbroek Open 2022 (E)	2022-10-29	2022-10-29	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
7	Overvaal Open 2022 (D)	2022-08-06	2022-08-06	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
8	D7 Teams 2022 (U9+U11 Mixed)	2022-08-13	2022-08-13	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
9	Hoerskool Overvaal 2022 (D)	2022-06-11	2022-06-11	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
10	Carel`s Chess Open 2022 (D)	2022-03-05	2022-03-05	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
11	Heidelberg Open 2022 (D)	2022-05-02	2022-05-02	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
12	Midvaal Ope 2022 (D)	2022-01-29	2022-01-29	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament Dr Peter Hangelbroek Open 2022				Tournament Heidelberg Open 2023
		date 2022-10-29	rnd 4	type Standard	result 1	date 2023-02-04	rnd 1	type Standard	result 0.5
		Opponent Smith, MI (Melea Ine)				Opponent Jonck, L (Louis)
2	3	Tournament Hoerskool Overvaal 2022				Tournament Overvaal Open 2022
		date 2022-06-11	rnd 4	type Standard	result 1	date 2022-08-06	rnd 1	type Standard	result 1
		Opponent Vorster, M (Marlo)				Opponent Moalosi, M (Maqhawe)
3	2	Tournament Gauteng Schools D7 2023				Tournament Gauteng Schools D7 2023
		date 2023-05-20	rnd 4	type Standard	result 1	date 2023-05-20	rnd 5	type Standard	result 1
		Opponent Sefatsa, R (Rifeloe)				Opponent Booysen, M (Minique)

#	Games	Start				End
1	3	Tournament Dr Peter Hangelbroek Open 2022				Tournament Heidelberg Open 2023
		date 2022-10-29	rnd 4	type Standard	result 1	date 2023-02-04	rnd 1	type Standard	result 0.5
		Opponent Smith, MI (Melea Ine)				Opponent Jonck, L (Louis)
2	3	Tournament Hoerskool Overvaal 2022				Tournament Overvaal Open 2022
		date 2022-06-11	rnd 4	type Standard	result 1	date 2022-08-06	rnd 1	type Standard	result 1
		Opponent Vorster, M (Marlo)				Opponent Moalosi, M (Maqhawe)
3	2	Tournament Gauteng Schools D7 2023				Tournament Gauteng Schools D7 2023
		date 2023-05-20	rnd 4	type Standard	result 1	date 2023-05-20	rnd 5	type Standard	result 1
		Opponent Sefatsa, R (Rifeloe)				Opponent Booysen, M (Minique)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Hoerskool Overvaal 2022				Tournament Overvaal Open 2022
		date 2022-06-11	rnd 4	type Standard	result 1	date 2022-08-06	rnd 1	type Standard	result 1
		Opponent Vorster, M (Marlo)				Opponent Moalosi, M (Maqhawe)
2	2	Tournament Gauteng Schools D7 2023				Tournament Gauteng Schools D7 2023
		date 2023-05-20	rnd 4	type Standard	result 1	date 2023-05-20	rnd 5	type Standard	result 1
		Opponent Sefatsa, R (Rifeloe)				Opponent Booysen, M (Minique)
3	2	Tournament Dr Peter Hangelbroek Open 2022				Tournament Dr Peter Hangelbroek Open 2022
		date 2022-10-29	rnd 4	type Standard	result 1	date 2022-10-29	rnd 5	type Standard	result 1
		Opponent Smith, MI (Melea Ine)				Opponent Mackay, FG (Fraser)

#	Games	Start				End
1	3	Tournament Hoerskool Overvaal 2022				Tournament Overvaal Open 2022
		date 2022-06-11	rnd 4	type Standard	result 1	date 2022-08-06	rnd 1	type Standard	result 1
		Opponent Vorster, M (Marlo)				Opponent Moalosi, M (Maqhawe)
2	2	Tournament Gauteng Schools D7 2023				Tournament Gauteng Schools D7 2023
		date 2023-05-20	rnd 4	type Standard	result 1	date 2023-05-20	rnd 5	type Standard	result 1
		Opponent Sefatsa, R (Rifeloe)				Opponent Booysen, M (Minique)
3	2	Tournament Dr Peter Hangelbroek Open 2022				Tournament Dr Peter Hangelbroek Open 2022
		date 2022-10-29	rnd 4	type Standard	result 1	date 2022-10-29	rnd 5	type Standard	result 1
		Opponent Smith, MI (Melea Ine)				Opponent Mackay, FG (Fraser)

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	Hutcheson ,M (Megan)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
1	Hutcheson ,M (Megan)	3	1236.9	1095.2	3	1242.2	1095.2	0	0	0	0	0	0
2	Rajaram ,E (Ekavir)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Rajaram ,E (Ekavir)	2	1282.4	857.4	2	1272.4	857.4	0	0	0	0	0	0
3	Visser ,M (Mila)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Visser ,M (Mila)	2	1269.1	844.1	2	1266.6	844.1	0	0	0	0	0	0
4	Smith ,MI (Melea Ine)	2	2	425	2	2	425	0	0	0	0	0	0
4	Smith ,MI (Melea Ine)	2	1120.4	1545.4	2	1106	1545.4	0	0	0	0	0	0
5	Webb ,A (Abbygail)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Webb ,A (Abbygail)	1	1211.1	786.1	1	1205.6	786.1	0	0	0	0	0	0
6	Roos ,A (Amone)	1	1	425	1	1	425	0	0	0	0	0	0
6	Roos ,A (Amone)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Oosthuizen ,L (Luan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Oosthuizen ,L (Luan)	1	1120.1	695.1	1	1104	695.1	0	0	0	0	0	0
8	Myburgh ,V (Vaughn)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Myburgh ,V (Vaughn)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Hittler ,A (Anestazia)	1	1	425	1	1	425	0	0	0	0	0	0
9	Hittler ,A (Anestazia)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Nagel ,D (Divan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Nagel ,D (Divan)	1	1217.3	1217.3	1	1221.2	1217.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Coetzer, J (Jessica)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms