Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bubb, J (John)

Chess SA id

1140138958

FIDE id

Date of birth

2014-02-17 (U12)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-09-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1275.3	1242.8	1287.7	1200
Raw rating	1275.3	1242.8	1287.7	1200
Weighted rating	1275.3	1242.8	1287.7	1200
Weighted performance	927.3	0	0	0
Floor	775.3	742.8	787.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	148.9	156	146.3	165.8
Highest rating	1283.3 2023-09-01	1295.1 2023-09-01	1322.2 2023-07-01	1200 2018-10-01
Highest raw rating	1275.3 2024-02-01	1242.8 2024-02-01	1287.7 2024-02-01	1200 2024-02-01
Highest weighted rating	1275.3 2025-08-01	1242.8 2025-08-01	1287.7 2025-06-01	1200 2018-10-01
Highest weighted performance	1283.3 2023-09-01	1295.1 2023-09-01	1322.2 2023-07-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1275.3	1242.8	1287.7	1200
Analysis
Rating	1275.3	1242.8	1287.7	1200
Raw rating	1275.3	1242.8	1287.7	1200
Weighted rating	1275.3	1242.8	1287.7
Weighted performance	927.3	0	0
K-factor	36	36	36	36
Floor	775.3	742.8	787.7	700
Max/Min rating change allowed	148.9	156	146.3	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	1275.3	1242.8	1287.7	1200
New weighted rating	1275.3	1242.8	1287.7	1200
New weighted performance	919.6	0	0	0
Temp new rating	1275.3	1242.8	1287.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1275.3	1242.8	1287.7	1200
New K-factor	36	36	36	36
New floor	775.3	742.8	787.7	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	26	12	14
	6	0	6
	0	0	0
History	32	12	20

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	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	32	18.5	57.81	66.4	1241.2	1307.6
Standard	12	6	50	0	1279.3	1279.3
Rapid	20	12.5	62.5	106.2	1218.4	1324.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1275.3	1242.8	1287.7	1200
2025-09-30	1275.3	1242.8	1287.7	1200
2025-09-01	1275.3	1242.8	1287.7	1200
2025-08-01	1275.3	1242.8	1287.7	1200
2025-07-01	1275.3	1242.8	1287.7	1200
2025-06-01	1275.3	1242.8	1287.7	1200
2025-05-01	1275.3	1242.8	1287.7	1200
2025-04-01	1275.3	1242.8	1287.7	1200
2025-03-01	1275.3	1242.8	1287.7	1200
2025-02-01	1275.3	1242.8	1287.7	1200
2025-01-01	1275.3	1242.8	1287.7	1200
2024-12-01	1275.3	1242.8	1287.7	1200
2024-11-01	1275.3	1242.8	1287.7	1200
2024-10-01	1275.3	1242.8	1287.7	1200
2024-09-01	1275.3	1242.8	1287.7	1200
2024-08-01	1275.3	1242.8	1287.7	1200
2024-07-01	1275.3	1242.8	1287.7	1200
2024-09-01	1275.3	1242.8	1287.7	1200
2024-05-01	1275.3	1242.8	1287.7	1200
2024-04-01	1275.3	1242.8	1287.7	1200
2024-03-01	1275.3	1242.8	1287.7	1200
2024-02-01	1275.3	1242.8	1287.7	1200
2024-01-01	1275.3	1242.8	1287.7	1200
2023-12-01	1275.3	1242.8	1287.7	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	Western Cape Top Schools 2023 (U9 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
2	CT Metro District East Top Schools Chess 2023 (U9 Mixed)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	5	4	3	Yes	Analysis
3	Western Cape PS Individuals 2023 (U9 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
4	Cape Town Metro Schools Chess Closed Individuals 2023 (U9 Boys)	2023-03-04	2023-03-04	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
5	District East Schools Chess Individual Trials 2023 (U7+U9 Mixed)	2023-02-04	2023-02-04	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
6	2022 East Dist Individuals (U9)	2022-03-12	2022-03-12	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament Western Cape Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-09-02	rnd 3	type Standard	result 1	date 2023-09-03	rnd 6	type Standard	result 1
		Opponent Punt, C (Christiaan Rufus)				Opponent Van Der Merwe, O (Oliver)
2	3	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 3	type Rapid	result 1	date 2023-03-04	rnd 5	type Rapid	result 1
		Opponent Jacobs, E (Emmanuel)				Opponent Techow-Grubert, D (Dominik)
3	3	Tournament 2022 East Dist Individuals				Tournament District East Schools Chess Individual Trials 2023
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2023-02-04	rnd 1	type Rapid	result 1
		Opponent Owynng, S (Shannon)				Opponent Smith, W (Willow)

#	Games	Start				End
1	4	Tournament Western Cape Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-09-02	rnd 3	type Standard	result 1	date 2023-09-03	rnd 6	type Standard	result 1
		Opponent Punt, C (Christiaan Rufus)				Opponent Van Der Merwe, O (Oliver)
2	2	Tournament Western Cape PS Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-05-05	rnd 2	type Standard	result 1	date 2023-05-05	rnd 3	type Standard	result 1
		Opponent Wyngaard, M (Michael)				Opponent Kriel, D (Daniel)

#	Games	Start				End
1	4	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-03-04	rnd 3	type Rapid	result 1	date 2023-07-29	rnd 1	type Rapid	result 1
		Opponent Jacobs, E (Emmanuel)				Opponent Van Den Berg, A (Albert)
2	3	Tournament 2022 East Dist Individuals				Tournament District East Schools Chess Individual Trials 2023
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2023-02-04	rnd 1	type Rapid	result 1
		Opponent Owynng, S (Shannon)				Opponent Smith, W (Willow)
3	2	Tournament CT Metro District East Top Schools Chess 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-07-29	rnd 3	type Rapid	result 1	date 2023-07-29	rnd 5	type Rapid	result 1
		Opponent Pienaar, S (Skyler)				Opponent Mynhardt, W (Wihan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Western Cape Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-09-02	rnd 3	type Standard	result 1	date 2023-09-03	rnd 6	type Standard	result 1
		Opponent Punt, C (Christiaan Rufus)				Opponent Van Der Merwe, O (Oliver)
2	3	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 3	type Rapid	result 1	date 2023-03-04	rnd 5	type Rapid	result 1
		Opponent Jacobs, E (Emmanuel)				Opponent Techow-Grubert, D (Dominik)
3	3	Tournament 2022 East Dist Individuals				Tournament District East Schools Chess Individual Trials 2023
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2023-02-04	rnd 1	type Rapid	result 1
		Opponent Owynng, S (Shannon)				Opponent Smith, W (Willow)

#	Games	Start				End
1	4	Tournament Western Cape Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-09-02	rnd 3	type Standard	result 1	date 2023-09-03	rnd 6	type Standard	result 1
		Opponent Punt, C (Christiaan Rufus)				Opponent Van Der Merwe, O (Oliver)
2	2	Tournament Western Cape PS Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-05-05	rnd 2	type Standard	result 1	date 2023-05-05	rnd 3	type Standard	result 1
		Opponent Wyngaard, M (Michael)				Opponent Kriel, D (Daniel)

#	Games	Start				End
1	4	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-03-04	rnd 3	type Rapid	result 1	date 2023-07-29	rnd 1	type Rapid	result 1
		Opponent Jacobs, E (Emmanuel)				Opponent Van Den Berg, A (Albert)
2	3	Tournament 2022 East Dist Individuals				Tournament District East Schools Chess Individual Trials 2023
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2023-02-04	rnd 1	type Rapid	result 1
		Opponent Owynng, S (Shannon)				Opponent Smith, W (Willow)
3	2	Tournament CT Metro District East Top Schools Chess 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-07-29	rnd 3	type Rapid	result 1	date 2023-07-29	rnd 5	type Rapid	result 1
		Opponent Pienaar, S (Skyler)				Opponent Mynhardt, W (Wihan)

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	Martin ,E (Emma)	2	1	0	0	0	0	2	1	0	0	0	0
1	Martin ,E (Emma)	2	1231	1231	0	0	0	2	1245.2	1231	0	0	0
2	Von Wielligh ,S (Sven)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Von Wielligh ,S (Sven)	1	1267	842	1	1257.1	842	0	0	0	0	0	0
3	Dixon ,A (Arlo)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Dixon ,A (Arlo)	1	1454.9	1029.9	1	1490.1	1029.9	0	0	0	0	0	0
4	Punt ,CR (Christiaan)	1	1	425	1	1	425	0	0	0	0	0	0
4	Punt ,CR (Christiaan)	1	1321.7	1746.7	1	1325.3	1746.7	0	0	0	0	0	0
5	Kriel ,D (Daniel)	1	1	425	1	1	425	0	0	0	0	0	0
5	Kriel ,D (Daniel)	1	1238	1663	1	1228.3	1663	0	0	0	0	0	0
6	Van Der Bank ,R (Recailinn)	1	1	425	1	1	425	0	0	0	0	0	0
6	Van Der Bank ,R (Recailinn)	1	1146	1571	1	1200	1571	0	0	0	0	0	0
7	Meyer ,D (Declan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Meyer ,D (Declan)	1	1261.2	836.2	1	1200	836.2	0	0	0	0	0	0
8	Sonday ,R (Rayyan)	1	1	425	0	0	0	1	1	425	0	0	0
8	Sonday ,R (Rayyan)	1	1152.3	1577.3	0	0	0	1	1135.6	1577.3	0	0	0
9	Stewart ,N (Neil)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Stewart ,N (Neil)	1	1332.9	907.9	0	0	0	1	1222.4	907.9	0	0	0
10	Owynng ,S (Shannon)	1	1	425	0	0	0	1	1	425	0	0	0
10	Owynng ,S (Shannon)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Bubb, J (John)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms