Chess South Africa Ratings Database

PLAYER PAGE

Personal

Petersen, J (Jamie)

Chess SA id

1090118656

FIDE id

Date of birth

2009-05-03 (U18)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1188.9	1206.9	1191.3	1200
Raw rating	1188.9	1206.9	1144.3	1200
Weighted rating	1172.8	1166.7	1191.3	1200
Weighted performance	0	0	0	0
Floor	700	706.9	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	168.5	164.2	179.5	165.8
Highest rating	1200 2018-10-01	1206.9 2025-09-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1206.9 2025-09-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-4.1	0
New rating	1188.9	1206.9	1187.2	1200
Analysis
Rating	1188.9	1206.9	1191.3	1200
Raw rating	1188.9	1206.9	1144.3	1200
Weighted rating	1172.8	1166.7	1191.3
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	706.9	700	700
Max/Min rating change allowed	168.5	164.2	179.5	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	1188.9	1206.9	1144.3	1200
New weighted rating	1174.2	1170.2	1187.2	1200
New weighted performance	0	0	0	0
Temp new rating	1188.9	1206.9	1187.2	1200
Temp new rating +/-	0	0	-4.1	0
Final new rating +/-	0	0	-4.1	0
New rating	1188.9	1206.9	1187.2	1200
New K-factor	36	36	36	36
New floor	700	706.9	700	700

Item	Main	Standard	Rapid
	0	0	0
	10	5	5
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	20	15	5

Games since
	Main 10	Standard 5		Rapid 5		Blitz 0
Gender	Male
Age group	U18
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-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	10	4	40	-85	1284.9	1199.9
Standard	5	3	60	85	1325.1	1410.1
Rapid	5	1	20	-255	1244.7	989.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	20	8.5	42.5	-63.8	1220.5	1156.7
Standard	15	7.5	50	0	1212.4	1212.4
Rapid	5	1	20	-255	1244.7	989.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1188.9	1206.9	1144.3	1200
2025-09-01	1188.9	1206.9	1144.3	1200
2025-08-01	1169.8	1159.2	1200	1200
2025-07-01	1169.8	1159.2	1200	1200
2025-06-01	1169.8	1159.2	1200	1200
2025-05-01	1169.8	1159.2	1200	1200
2025-04-01	1169.8	1159.2	1200	1200
2025-03-01	1169.8	1159.2	1200	1200
2025-02-01	1169.8	1159.2	1200	1200
2025-01-01	1169.8	1159.2	1200	1200
2024-12-01	1169.8	1159.2	1200	1200
2024-11-01	1169.8	1159.2	1200	1200
2024-10-01	1169.8	1159.2	1200	1200
2024-09-01	1169.8	1159.2	1200	1200
2024-08-01	1169.8	1159.2	1200	1200
2024-07-01	1169.8	1159.2	1200	1200
2024-06-01	1169.8	1159.2	1200	1200
2024-08-01	1169.8	1159.2	1200	1200
2024-04-01	1169.8	1159.2	1200	1200
2024-03-01	1169.8	1159.2	1200	1200
2024-02-01	1169.8	1159.2	1200	1200
2024-01-01	1169.8	1159.2	1200	1200
2023-12-01	1169.8	1159.2	1200	1200
2023-11-01	1169.8	1159.2	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	Ekurhuleni North Schools Teams 2025 (U17 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
2	Edenvale Germiston Cluster Teams 2025 (High School)	2025-07-25	2025-07-25	Rapid	Ekurhuleni (GE)	5	5	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni North Schools Teams 2025 (U17 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
2	Edenvale Germiston Cluster Teams 2025 (High School)	2025-07-25	2025-07-25	Rapid	Ekurhuleni (GE)	5	5	1	Yes	Analysis
3	Ekurhuleni Grand Prix 2019 (C)	2019-09-14	2019-09-14	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
4	Springs Open 2019 (C)	2019-08-31	2019-08-31	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Stritter, R (Robert)				Opponent Clarke, G (Gerrith)
2	2	Tournament Springs Open 2019				Tournament Springs Open 2019
		date 2019-08-31	rnd 4	type Standard	result 1	date 2019-08-31	rnd 5	type Standard	result 0.5
		Opponent Kunene, S (Sibusisiwe)				Opponent Teka, M (Mmabatho)
3	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 3	type Rapid	result 1	date 2025-07-25	rnd 3	type Rapid	result 1
		Opponent Mwape, L (Leeroy)				Opponent Mwape, L (Leeroy)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Stritter, R (Robert)				Opponent Clarke, G (Gerrith)
2	2	Tournament Springs Open 2019				Tournament Springs Open 2019
		date 2019-08-31	rnd 4	type Standard	result 1	date 2019-08-31	rnd 5	type Standard	result 0.5
		Opponent Kunene, S (Sibusisiwe)				Opponent Teka, M (Mmabatho)
3	1	Tournament Ekurhuleni Grand Prix 2019				Tournament Ekurhuleni Grand Prix 2019
		date 2019-09-14	rnd 5	type Standard	result 1	date 2019-09-14	rnd 5	type Standard	result 1
		Opponent Nash, O (Owen)				Opponent Nash, O (Owen)

#	Games	Start				End
1	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 3	type Rapid	result 1	date 2025-07-25	rnd 3	type Rapid	result 1
		Opponent Mwape, L (Leeroy)				Opponent Mwape, L (Leeroy)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Stritter, R (Robert)				Opponent Clarke, G (Gerrith)
2	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 3	type Rapid	result 1	date 2025-07-25	rnd 3	type Rapid	result 1
		Opponent Mwape, L (Leeroy)				Opponent Mwape, L (Leeroy)
3	1	Tournament Ekurhuleni Grand Prix 2019				Tournament Ekurhuleni Grand Prix 2019
		date 2019-09-14	rnd 5	type Standard	result 1	date 2019-09-14	rnd 5	type Standard	result 1
		Opponent Nash, O (Owen)				Opponent Nash, O (Owen)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Stritter, R (Robert)				Opponent Clarke, G (Gerrith)
2	1	Tournament Ekurhuleni Grand Prix 2019				Tournament Ekurhuleni Grand Prix 2019
		date 2019-09-14	rnd 5	type Standard	result 1	date 2019-09-14	rnd 5	type Standard	result 1
		Opponent Nash, O (Owen)				Opponent Nash, O (Owen)
3	1	Tournament Ekurhuleni Grand Prix 2019				Tournament Ekurhuleni Grand Prix 2019
		date 2019-09-14	rnd 3	type Standard	result 1	date 2019-09-14	rnd 3	type Standard	result 1
		Opponent Lange, J (Jean-Luc)				Opponent Lange, J (Jean-Luc)

#	Games	Start				End
1	1	Tournament Edenvale Germiston Cluster Teams 2025				Tournament Edenvale Germiston Cluster Teams 2025
		date 2025-07-25	rnd 3	type Rapid	result 1	date 2025-07-25	rnd 3	type Rapid	result 1
		Opponent Mwape, L (Leeroy)				Opponent Mwape, L (Leeroy)

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	Makhubalo ,OT (Olwethu Thembelihle)	1	1	425	1	1	425	0	0	0	0	0	0
1	Makhubalo ,OT (Olwethu Thembelihle)	1	1187.9	1612.9	1	1181.2	1612.9	0	0	0	0	0	0
2	De Vasconcelos ,T (Tiaana)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	De Vasconcelos ,T (Tiaana)	1	1542.9	1117.9	1	1506.3	1117.9	0	0	0	0	0	0
3	Stadler ,H (Helgard)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Stadler ,H (Helgard)	1	1207.9	782.9	1	1200	782.9	0	0	0	0	0	0
4	Clarke ,G (Gerrith)	1	1	425	1	1	425	0	0	0	0	0	0
4	Clarke ,G (Gerrith)	1	1237.6	1662.6	1	1207.2	1662.6	0	0	0	0	0	0
5	Lange ,J (Jean-Luc)	1	1	425	1	1	425	0	0	0	0	0	0
5	Lange ,J (Jean-Luc)	1	1092.7	1517.7	1	1075.1	1517.7	0	0	0	0	0	0
6	Du Toit ,J (Jaunre)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Du Toit ,J (Jaunre)	1	1022	597	1	1013.6	597	0	0	0	0	0	0
7	Teka ,M (Mmabatho)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Teka ,M (Mmabatho)	1	1068.5	1068.5	1	1044	1068.5	0	0	0	0	0	0
8	Hubbert ,C (Connor)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Hubbert ,C (Connor)	1	1238.5	813.5	1	1232.8	813.5	0	0	0	0	0	0
9	Stritter ,R (Robert)	1	1	425	1	1	425	0	0	0	0	0	0
9	Stritter ,R (Robert)	1	1166.6	1591.6	1	1178.7	1591.6	0	0	0	0	0	0
10	De Lange ,C (Charend)	1	1	425	1	1	425	0	0	0	0	0	0
10	De Lange ,C (Charend)	1	1108.2	1533.2	1	1099.6	1533.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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Statistics

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PLAYER PAGE

Personal

Petersen, J (Jamie)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms