Chess South Africa Ratings Database

PLAYER PAGE

Personal

John, R (Ruben)

Chess SA id

1060141771

FIDE id

Date of birth

2006-01-06 (U20)

Gender

Male

Region

Buffalo City (EBC)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-04-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1446.2

Item	Main	Standard	Rapid	Blitz
Rating	1463.3	1470.6	1242.1	1200
Raw rating	1459.4	1466.7	1242.1	1200
Weighted rating	1463.3	1470.6	1241.8	1200
Weighted performance	1298.5	1305.4	0	0
Floor	990	999.2	742.1	700
K-factor	32	32	36	36
Min/Max rating change allowed	114.6	113.4	156.2	165.8
Highest rating	1490 2025-01-01	1569.4 2023-03-01	1242.1 2024-02-01	1200 2018-10-01
Highest raw rating	1490 2025-01-01	1499.2 2025-01-01	1242.1 2024-02-01	1200 2024-02-01
Highest weighted rating	1458.6 2025-08-01	1464.4 2025-08-01	1239.8 2025-08-01	1200 2018-10-01
Highest weighted performance	1481.9 2024-04-01	1569.4 2023-03-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.9	1.2	0	0
New rating	1464.2	1471.8	1242.1	1200
Analysis
Rating	1463.3	1470.6	1242.1	1200
Raw rating	1459.4	1466.7	1242.1	1200
Weighted rating	1463.3	1470.6	1241.8
Weighted performance	1298.5	1305.4	0
K-factor	32	32	36	36
Floor	990	999.2	742.1	700
Max/Min rating change allowed	114.6	113.4	156.2	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	1459.4	1466.7	1242.1	1200
New weighted rating	1464.2	1471.8	1242.1	1200
New weighted performance	1289.6	1296.5	0	0
Temp new rating	1464.2	1471.8	1242.1	1200
Temp new rating +/-	0.9	1.2	0	0
Final new rating +/-	0.9	1.2	0	0
New rating	1464.2	1471.8	1242.1	1200
New K-factor	32	32	36	36
New floor	990	999.2	742.1	700

Item	Main	Standard	Rapid
	0	0	0
	8	8	0
	17	17	0
	14	14	0
	19	0	19
	0	0	0
History	58	39	19

Games since
	Main 25	Standard 25		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	8	2.5	31.25	-159.4	1551.5	1392.1
Standard	8	2.5	31.25	-159.4	1551.5	1392.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	58	33.5	57.76	65.9	1408.9	1474.9
Standard	39	23	58.97	76.3	1429.8	1506.1
Rapid	19	10.5	55.26	44.7	1366.1	1410.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1459.4	1466.7	1242.1	1200
2025-09-30	1459.4	1466.7	1242.1	1200
2025-09-01	1459.4	1466.7	1242.1	1200
2025-08-01	1459.4	1466.7	1242.1	1200
2025-07-01	1459.4	1466.7	1242.1	1200
2025-06-01	1459.4	1466.7	1242.1	1200
2025-05-01	1459.4	1466.7	1242.1	1200
2025-04-01	1490	1499.2	1242.1	1200
2025-03-01	1490	1499.2	1242.1	1200
2025-02-01	1490	1499.2	1242.1	1200
2025-01-01	1490	1499.2	1242.1	1200
2024-12-01	1466	1475.8	1242.1	1200
2024-11-01	1466	1475.8	1242.1	1200
2024-10-01	1466	1475.8	1242.1	1200
2024-09-01	1466	1475.8	1242.1	1200
2024-08-01	1466	1475.8	1242.1	1200
2024-07-01	1466	1475.8	1242.1	1200
2024-09-01	1466	1475.8	1242.1	1200
2024-05-01	1466	1475.8	1242.1	1200
2024-04-01	1409.9	1410.9	1242.1	1200
2024-03-01	1360	1339.6	1242.1	1200
2024-02-01	1360	1339.6	1242.1	1200
2024-01-01	1360	1339.6	1242.1	1200
2023-12-01	1360	1339.6	1175.6	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	South African Junior Closed Chess Championships 2025 (U20 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	South African Junior Closed Chess Championships 2025 (U20 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	2.5	Yes	Analysis
2	Mzansi Interprovincial Youth Chess Championships 2024 (U20 Open Combined)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	4.5	Yes	Analysis
3	7th Annual UFH Heritage Open 2024 (B)	2024-09-21	2024-09-22	Standard	Amathole (EAL)	7	0	0	No	Analysis
4	2nd Buffalo City Chess Trials 2024 (U20A)	2024-04-06	2024-04-06	Standard	Buffalo City (EBC)	5	5	2.5	Yes	Analysis
5	1st BC Chess Trials 2024 (U20+A)	2024-03-02	2024-03-02	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
6	4th BC HS Trials 2023 (U18A-Adult)	2023-08-26	2023-08-26	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
7	BC Chess Trials 1 of 5 2023 (Prestige)	2023-04-29	2023-04-29	Standard	Buffalo City (EBC)	5	4	1	Yes	Analysis
8	3rd Vikings Champs 2023 (U18-Adults)	2023-03-23	2023-03-23	Standard	Buffalo City (EBC)	5	5	4.5	Yes	Analysis
9	BC Chess Trials 5 of 5 2022 (A)	2022-06-11	2022-06-11	Rapid	Buffalo City (EBC)	10	10	5.5	Yes	Analysis
10	BC Chess 4th Border Trials 2022 (A)	2022-05-21	2022-05-21	Rapid	Buffalo City (EBC)	10	9	5	Yes	Analysis

#	Games	Start				End
1	6	Tournament 1st BC Chess Trials 2024				Tournament 2nd Buffalo City Chess Trials 2024
		date 2024-03-02	rnd 3	type Standard	result 1	date 2024-04-06	rnd 3	type Standard	result 0.5
		Opponent Sikepu, L (Liqhawe)				Opponent Racaza, S (Sinovuyo)
2	5	Tournament 3rd Vikings Champs 2023				Tournament 3rd Vikings Champs 2023
		date 2023-03-23	rnd 1	type Standard	result 1	date 2023-03-23	rnd 5	type Standard	result 0.5
		Opponent Bwema, D (David)				Opponent Bixa, T (Tshegofatso)
3	5	Tournament BC Chess Trials 5 of 5 2022				Tournament BC Chess Trials 5 of 5 2022
		date 2022-06-11	rnd 2	type Rapid	result 0.5	date 2022-06-11	rnd 6	type Rapid	result 1
		Opponent Mathew, N (Nevin)				Opponent Jama, MG (Mxoni)

#	Games	Start				End
1	6	Tournament 1st BC Chess Trials 2024				Tournament 2nd Buffalo City Chess Trials 2024
		date 2024-03-02	rnd 3	type Standard	result 1	date 2024-04-06	rnd 3	type Standard	result 0.5
		Opponent Sikepu, L (Liqhawe)				Opponent Racaza, S (Sinovuyo)
2	5	Tournament 3rd Vikings Champs 2023				Tournament 3rd Vikings Champs 2023
		date 2023-03-23	rnd 1	type Standard	result 1	date 2023-03-23	rnd 5	type Standard	result 0.5
		Opponent Bwema, D (David)				Opponent Bixa, T (Tshegofatso)
3	4	Tournament 4th BC HS Trials 2023				Tournament 1st BC Chess Trials 2024
		date 2023-08-26	rnd 3	type Standard	result 1	date 2024-03-02	rnd 1	type Standard	result 1
		Opponent Ngculana, Z (Zachuma)				Opponent Moumin, S (Salem)

#	Games	Start				End
1	5	Tournament BC Chess Trials 5 of 5 2022				Tournament BC Chess Trials 5 of 5 2022
		date 2022-06-11	rnd 2	type Rapid	result 0.5	date 2022-06-11	rnd 6	type Rapid	result 1
		Opponent Mathew, N (Nevin)				Opponent Jama, MG (Mxoni)
2	3	Tournament BC Chess 4th Border Trials 2022				Tournament BC Chess 4th Border Trials 2022
		date 2022-05-21	rnd 6	type Rapid	result 1	date 2022-05-21	rnd 8	type Rapid	result 1
		Opponent Yayo, A (Athenkosi)				Opponent Pearson, E (Ethan)
3	2	Tournament BC Chess 4th Border Trials 2022				Tournament BC Chess 4th Border Trials 2022
		date 2022-05-21	rnd 3	type Rapid	result 1	date 2022-05-21	rnd 4	type Rapid	result 1
		Opponent Qangule, MK (Mandibonge)				Opponent Buss, MJ (Matthew)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament 1st BC Chess Trials 2024				Tournament 2nd Buffalo City Chess Trials 2024
		date 2024-03-02	rnd 3	type Standard	result 1	date 2024-04-06	rnd 2	type Standard	result 1
		Opponent Sikepu, L (Liqhawe)				Opponent Mazikana, E (Ethan)
2	4	Tournament 4th BC HS Trials 2023				Tournament 1st BC Chess Trials 2024
		date 2023-08-26	rnd 3	type Standard	result 1	date 2024-03-02	rnd 1	type Standard	result 1
		Opponent Ngculana, Z (Zachuma)				Opponent Moumin, S (Salem)
3	4	Tournament 3rd Vikings Champs 2023				Tournament 3rd Vikings Champs 2023
		date 2023-03-23	rnd 1	type Standard	result 1	date 2023-03-23	rnd 4	type Standard	result 1
		Opponent Bwema, D (David)				Opponent Williams, C (Cuan)

#	Games	Start				End
1	5	Tournament 1st BC Chess Trials 2024				Tournament 2nd Buffalo City Chess Trials 2024
		date 2024-03-02	rnd 3	type Standard	result 1	date 2024-04-06	rnd 2	type Standard	result 1
		Opponent Sikepu, L (Liqhawe)				Opponent Mazikana, E (Ethan)
2	4	Tournament 4th BC HS Trials 2023				Tournament 1st BC Chess Trials 2024
		date 2023-08-26	rnd 3	type Standard	result 1	date 2024-03-02	rnd 1	type Standard	result 1
		Opponent Ngculana, Z (Zachuma)				Opponent Moumin, S (Salem)
3	4	Tournament 3rd Vikings Champs 2023				Tournament 3rd Vikings Champs 2023
		date 2023-03-23	rnd 1	type Standard	result 1	date 2023-03-23	rnd 4	type Standard	result 1
		Opponent Bwema, D (David)				Opponent Williams, C (Cuan)

#	Games	Start				End
1	4	Tournament BC Chess Trials 5 of 5 2022				Tournament BC Chess Trials 5 of 5 2022
		date 2022-06-11	rnd 3	type Rapid	result 1	date 2022-06-11	rnd 6	type Rapid	result 1
		Opponent Qangule, MK (Mandibonge)				Opponent Jama, MG (Mxoni)
2	3	Tournament BC Chess 4th Border Trials 2022				Tournament BC Chess 4th Border Trials 2022
		date 2022-05-21	rnd 6	type Rapid	result 1	date 2022-05-21	rnd 8	type Rapid	result 1
		Opponent Yayo, A (Athenkosi)				Opponent Pearson, E (Ethan)
3	2	Tournament BC Chess 4th Border Trials 2022				Tournament BC Chess 4th Border Trials 2022
		date 2022-05-21	rnd 3	type Rapid	result 1	date 2022-05-21	rnd 4	type Rapid	result 1
		Opponent Qangule, MK (Mandibonge)				Opponent Buss, MJ (Matthew)

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	Meise ,K (Keagen)	3	0	-425	1	0	-425	2	0	-425	0	0	0
1	Meise ,K (Keagen)	3	1657.8	1232.8	1	1655.6	1232.8	2	1290.8	1232.8	0	0	0
2	Mazikana ,E (Ethan)	2	2	425	2	2	425	0	0	0	0	0	0
2	Mazikana ,E (Ethan)	2	1478.7	1903.7	2	1490.7	1903.7	0	0	0	0	0	0
3	Racaza ,S (Sinovuyo)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
3	Racaza ,S (Sinovuyo)	2	1541.2	1328.7	2	1542.1	1328.7	0	0	0	0	0	0
4	Kgomo ,M (Mathema)	2	1	0	2	1	0	0	0	0	0	0	0
4	Kgomo ,M (Mathema)	2	1374.9	1374.9	2	1358.6	1374.9	0	0	0	0	0	0
5	Becker ,M (Matthew)	2	1	0	1	1	425	1	0	-425	0	0	0
5	Becker ,M (Matthew)	2	1466.9	1466.9	1	1459.6	1891.9	1	1086.4	1041.9	0	0	0
6	Totose ,Z (Zimi)	2	0	-425	1	0	-425	1	0	-425	0	0	0
6	Totose ,Z (Zimi)	2	1734.2	1309.2	1	1781.2	1309.2	1	1377.5	1309.2	0	0	0
7	Qangule ,MK (Mandibonge Khaka)	2	2	425	0	0	0	2	2	425	0	0	0
7	Qangule ,MK (Mandibonge Khaka)	2	1272.1	1697.1	0	0	0	2	979.4	1697.1	0	0	0
8	Pearson ,E (Ethan)	2	2	425	0	0	0	2	2	425	0	0	0
8	Pearson ,E (Ethan)	2	1204.2	1629.2	0	0	0	2	724.2	1629.2	0	0	0
9	Becker ,R (Robyn)	2	2	425	0	0	0	2	2	425	0	0	0
9	Becker ,R (Robyn)	2	1391	1816	0	0	0	2	1054.6	1816	0	0	0
10	Bless ,L (Lulutho)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Bless ,L (Lulutho)	1	1731.6	1306.6	1	1789.4	1306.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

John, R (Ruben)

Ratings

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Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms