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

2025-10-05

Personal details last changed

2025-05-11

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1261.4	1260.9	1200	1200
Raw rating	1251.3	1249.4	1200	1200
Weighted rating	1261.4	1260.9	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	154.1	154.6	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	-1.1	0	0
New rating	1260.4	1259.7	1200	1200
Analysis
Rating	1261.4	1260.9	1200	1200
Raw rating	1251.3	1249.4	1200	1200
Weighted rating	1261.4	1260.9	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	765.9	766.2	700	700
Max/Min rating change allowed	154.1	154.6	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	1251.3	1249.4	1200	1200
New weighted rating	1260.4	1259.7	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1260.4	1259.7	1200	1200
Temp new rating +/-	-1	-1.1	0	0
Final new rating +/-	-1	-1.1	0	0
New rating	1260.4	1259.7	1200	1200
New K-factor	36	36	36	36
New floor	765.9	766.2	700	700

Item	Main	Standard
	0	0
	18	18
	0	0
	6	6
	0	0
	0	0
History	24	24

Games since
	Main 18	Standard 18		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	18	7.5	41.67	-70.8	1290.1	1219.3
Standard	18	7.5	41.67	-70.8	1290.1	1219.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	24	11	45.83	-35.4	1315.4	1279.9
Standard	24	11	45.83	-35.4	1315.4	1279.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1251.3	1249.4	1200	1200
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
2024-09-01	1265.9	1266.2	1200	1200
2024-05-01	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

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	Bojanala's FIDE On The Orion Express 2025 (Rooks)	2025-10-03	2025-10-05	Standard	Bojanala Platina (NBR)	6	6	3	Yes	Analysis
2	Chess Power House Aug Open 2025 (B)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
3	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	Bojanala's FIDE On The Orion Express 2025 (Rooks)	2025-10-03	2025-10-05	Standard	Bojanala Platina (NBR)	6	6	3	Yes	Analysis
2	Chess Power House Aug Open 2025 (B)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
3	Moja Chess Extravaganza 2025 (C)	2025-04-26	2025-05-01	Standard	Johannesburg Metro (GJM)	9	8	3.5	Yes	Analysis
4	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	2	Tournament Bojanala's FIDE On The Orion Express 2025				Tournament Bojanala's FIDE On The Orion Express 2025
		date 2025-10-05	rnd 5	type Standard	result 1	date 2025-10-05	rnd 6	type Standard	result 1
		Opponent Mokoena, T (Thato)				Opponent Khumalo, R (Rethabile)

#	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	Hlope ,S (Siphosethu)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Hlope ,S (Siphosethu)	1	1371.2	946.2	1	1400.7	946.2	0	0	0	0	0	0
2	Mushweu ,G (Gundo)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Mushweu ,G (Gundo)	1	1293.2	1293.2	1	1244.5	1293.2	0	0	0	0	0	0
3	Toor ,Q (Qudsia)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Toor ,Q (Qudsia)	1	1231.7	1231.7	1	1236.4	1231.7	0	0	0	0	0	0
4	Pitso ,K (Kabelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Pitso ,K (Kabelo)	1	1469.3	1044.3	1	1460.4	1044.3	0	0	0	0	0	0
5	Van Der Berg ,KW (Kai Willem)	1	1	425	1	1	425	0	0	0	0	0	0
5	Van Der Berg ,KW (Kai Willem)	1	1433.6	1858.6	1	1427	1858.6	0	0	0	0	0	0
6	Mokobe ,S (Siyabonga)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Mokobe ,S (Siyabonga)	1	1373.8	948.8	1	1374	948.8	0	0	0	0	0	0
7	Mbokazi ,M (Mbulelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mbokazi ,M (Mbulelo)	1	1238.9	813.9	1	1240.7	813.9	0	0	0	0	0	0
8	Gemmell ,R (Ryan)	1	1	425	1	1	425	0	0	0	0	0	0
8	Gemmell ,R (Ryan)	1	1330.8	1755.8	1	1324.3	1755.8	0	0	0	0	0	0
9	Sekwati ,B (Bokamoso)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Sekwati ,B (Bokamoso)	1	1349.9	924.9	1	1361	924.9	0	0	0	0	0	0
10	Kachaka ,K (Kudakwashe)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Kachaka ,K (Kudakwashe)	1	1274.4	849.4	1	1267.4	849.4	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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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms