Chess South Africa Ratings Database

PLAYER PAGE

Personal

John, OP (Oratile Petronel)

Chess SA id

2980158851

FIDE id

Date of birth

1998-01-01 (Adult)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

BOT

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

2025-05-11

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1262.4	1262	1200	1200
Raw rating	1244.1	1240.4	1200	1200
Weighted rating	1262.4	1262	1200	1200
Weighted performance	0	0	0	0
Floor	765.9	766.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	155.7	156.5	165.8	165.8
Highest rating	1476.4 2023-07-01	1475.6 2023-07-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1265.9 2024-03-01	1266.2 2024-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1265.9 2025-05-05	1266.2 2025-05-05	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1476.4 2023-07-01	1475.6 2023-07-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.6	-1.9	0	0
New rating	1260.8	1260.1	1200	1200
Analysis
Rating	1262.4	1262	1200	1200
Raw rating	1244.1	1240.4	1200	1200
Weighted rating	1262.4	1262	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	765.9	766.2	700	700
Max/Min rating change allowed	155.7	156.5	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	1244.1	1240.4	1200	1200
New weighted rating	1260.8	1260.1	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1260.8	1260.1	1200	1200
Temp new rating +/-	-1.6	-1.9	0	0
Final new rating +/-	-1.6	-1.9	0	0
New rating	1260.8	1260.1	1200	1200
New K-factor	36	36	36	36
New floor	765.9	766.2	700	700

Item	Main	Standard
	0	0
	12	12
	0	0
	6	6
	0	0
	0	0
History	18	18

Games since
	Main 12	Standard 12		Rapid 0		Blitz 0
Gender	Female
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult 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	12	4.5	37.5	-106.2	1289.4	1183.2
Standard	12	4.5	37.5	-106.2	1289.4	1183.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	18	8	44.44	-47.2	1323.3	1276
Standard	18	8	44.44	-47.2	1323.3	1276
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1244.1	1240.4	1200	1200
2025-09-01	1244.1	1240.4	1200	1200
2025-08-01	1265.8	1266	1200	1200
2025-07-01	1265.7	1266	1200	1200
2025-06-01	1264.6	1264.6	1200	1200
2025-05-01	1265.9	1266.2	1200	1200
2025-04-01	1265.9	1266.2	1200	1200
2025-03-01	1265.9	1266.2	1200	1200
2025-02-01	1265.9	1266.2	1200	1200
2025-01-01	1265.9	1266.2	1200	1200
2024-12-01	1265.9	1266.2	1200	1200
2024-11-01	1265.9	1266.2	1200	1200
2024-10-01	1265.9	1266.2	1200	1200
2024-09-01	1265.9	1266.2	1200	1200
2024-08-01	1265.9	1266.2	1200	1200
2024-07-01	1265.9	1266.2	1200	1200
2024-06-01	1265.9	1266.2	1200	1200
2024-08-01	1265.9	1266.2	1200	1200
2024-04-01	1265.9	1266.2	1200	1200
2024-03-01	1265.9	1266.2	1200	1200
2024-02-01	1265.9	1266.2	1200	1200
2024-01-01	1265.9	1266.2	1200	1200
2023-12-01	1265.9	1266.2	1200	1200
2023-11-01	1265.9	1266.2	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	Chess Power House Aug Open 2025 (B)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
2	Moja Chess Extravaganza 2025 (C)	2025-04-26	2025-05-01	Standard	Johannesburg Metro (GJM)	9	8	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Chess Power House Aug Open 2025 (B)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
2	Moja Chess Extravaganza 2025 (C)	2025-04-26	2025-05-01	Standard	Johannesburg Metro (GJM)	9	8	3.5	Yes	Analysis
3	Bojanala's FIDE in the Sparkling Waters 2023 (Rooks)	2023-07-28	2023-07-30	Standard	Bojanala Platina (NBR)	6	6	3.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament Moja Chess Extravaganza 2025				Tournament Chess Power House Aug Open 2025
		date 2025-04-29	rnd 6	type Standard	result 0.5	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Toor, Q (Qudsia)				Opponent Moloto, P (Phuti Tebogo)
2	3	Tournament Bojanala's FIDE in the Sparkling Waters 2023				Tournament Bojanala's FIDE in the Sparkling Waters 2023
		date 2023-07-28	rnd 1	type Standard	result 1	date 2023-07-29	rnd 3	type Standard	result 0.5
		Opponent Mutsambwa, T (Trevor)				Opponent Tshetlhe, B (Blessing)
3	1	Tournament Moja Chess Extravaganza 2025				Tournament Moja Chess Extravaganza 2025
		date 2025-04-26	rnd 1	type Standard	result 1	date 2025-04-26	rnd 1	type Standard	result 1
		Opponent Xu, R (Rubin)				Opponent Xu, R (Rubin)

#	Games	Start				End
1	5	Tournament Moja Chess Extravaganza 2025				Tournament Chess Power House Aug Open 2025
		date 2025-04-29	rnd 6	type Standard	result 0.5	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Toor, Q (Qudsia)				Opponent Moloto, P (Phuti Tebogo)
2	3	Tournament Bojanala's FIDE in the Sparkling Waters 2023				Tournament Bojanala's FIDE in the Sparkling Waters 2023
		date 2023-07-28	rnd 1	type Standard	result 1	date 2023-07-29	rnd 3	type Standard	result 0.5
		Opponent Mutsambwa, T (Trevor)				Opponent Tshetlhe, B (Blessing)
3	1	Tournament Moja Chess Extravaganza 2025				Tournament Moja Chess Extravaganza 2025
		date 2025-04-26	rnd 1	type Standard	result 1	date 2025-04-26	rnd 1	type Standard	result 1
		Opponent Xu, R (Rubin)				Opponent Xu, R (Rubin)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Bojanala's FIDE in the Sparkling Waters 2023				Tournament Bojanala's FIDE in the Sparkling Waters 2023
		date 2023-07-28	rnd 1	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Mutsambwa, T (Trevor)				Opponent Grobler, R (Rowan)
2	1	Tournament Chess Power House Aug Open 2025				Tournament Chess Power House Aug Open 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Moloto, P (Phuti Tebogo)				Opponent Moloto, P (Phuti Tebogo)
3	1	Tournament Moja Chess Extravaganza 2025				Tournament Moja Chess Extravaganza 2025
		date 2025-04-30	rnd 7	type Standard	result 1	date 2025-04-30	rnd 7	type Standard	result 1
		Opponent Gemmell, R (Ryan)				Opponent Gemmell, R (Ryan)

#	Games	Start				End
1	2	Tournament Bojanala's FIDE in the Sparkling Waters 2023				Tournament Bojanala's FIDE in the Sparkling Waters 2023
		date 2023-07-28	rnd 1	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Mutsambwa, T (Trevor)				Opponent Grobler, R (Rowan)
2	1	Tournament Chess Power House Aug Open 2025				Tournament Chess Power House Aug Open 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Moloto, P (Phuti Tebogo)				Opponent Moloto, P (Phuti Tebogo)
3	1	Tournament Moja Chess Extravaganza 2025				Tournament Moja Chess Extravaganza 2025
		date 2025-04-30	rnd 7	type Standard	result 1	date 2025-04-30	rnd 7	type Standard	result 1
		Opponent Gemmell, R (Ryan)				Opponent Gemmell, R (Ryan)

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	Van Der Berg ,KW (Kai Willem)	1	1	425	1	1	425	0	0	0	0	0	0
1	Van Der Berg ,KW (Kai Willem)	1	1433.6	1858.6	1	1427	1858.6	0	0	0	0	0	0
2	Xu ,R (Rubin)	1	1	425	1	1	425	0	0	0	0	0	0
2	Xu ,R (Rubin)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Pitso ,K (Kabelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Pitso ,K (Kabelo)	1	1469.3	1044.3	1	1460.4	1044.3	0	0	0	0	0	0
4	Gemmell ,R (Ryan)	1	1	425	1	1	425	0	0	0	0	0	0
4	Gemmell ,R (Ryan)	1	1330.8	1755.8	1	1324.3	1755.8	0	0	0	0	0	0
5	Moloto ,P (Phuti Tebogo)	1	1	425	1	1	425	0	0	0	0	0	0
5	Moloto ,P (Phuti Tebogo)	1	1234.5	1659.5	1	1220	1659.5	0	0	0	0	0	0
6	Kambule ,Z (Zakhele)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Kambule ,Z (Zakhele)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Thabethe ,T (Themba)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Thabethe ,T (Themba)	1	1225	800	1	1229.7	800	0	0	0	0	0	0
8	Grobler ,R (Rowan)	1	1	425	1	1	425	0	0	0	0	0	0
8	Grobler ,R (Rowan)	1	1422.3	1847.3	1	1416.4	1847.3	0	0	0	0	0	0
9	Mutsambwa ,T (Trevor)	1	1	425	1	1	425	0	0	0	0	0	0
9	Mutsambwa ,T (Trevor)	1	1377.8	1802.8	1	1375.9	1802.8	0	0	0	0	0	0
10	Mphela ,L (Lebohang)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mphela ,L (Lebohang)	1	1184.2	759.2	1	1188.4	759.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

John, OP (Oratile Petronel)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms