Chess South Africa Ratings Database

PLAYER PAGE

Personal

Greyling, J (Johnathan)

Chess SA id

106076818

FIDE id

Date of birth

2006-02-16 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-07-28

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1128.6	1175.4	1085.5	1200
Raw rating	1128.6	1175.4	1085.5	1200
Weighted rating	1124.4	1170.5	1085.1	1200
Weighted performance	588.4	0	0	0
Floor	700	708.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	183.6	171.7	195.2	165.8
Highest rating	1200 2018-02-01	1209.1 2020-02-01	1200 2018-02-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1208.2 2024-02-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1208.2 2024-07-01	1200 2018-02-01	1200 2018-10-01
Highest weighted performance	1200 2024-12-01	1209.1 2020-02-01	1200 2024-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1128.6	1175.4	1085.5	1200
Analysis
Rating	1128.6	1175.4	1085.5	1200
Raw rating	1128.6	1175.4	1085.5	1200
Weighted rating	1124.4	1170.5	1085.1
Weighted performance	588.4	0	0
K-factor	36	36	36	36
Floor	700	708.2	700	700
Max/Min rating change allowed	183.6	171.7	195.2	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	1128.6	1175.4	1085.5	1200
New weighted rating	1124.6	1170.6	1085.1	1200
New weighted performance	581.4	0	0	0
Temp new rating	1128.6	1175.4	1085.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1128.6	1175.4	1085.5	1200
New K-factor	36	36	36	36
New floor	700	708.2	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	4	4	0
	11	6	5
	6	0	6
	0	0	0
History	43	22	21

Games since
	Main 4	Standard 4		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Cape Town (WCT)
Province	Western Cape (WC)
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	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	11	34.38	-132.8	1210.2	1077.4
Standard	16	6	37.5	-106.2	1219	1112.7
Rapid	16	5	31.25	-159.4	1201.5	1042.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1128.6	1175.4	1085.5	1200
2025-11-30	1128.6	1175.4	1085.5	1200
2025-11-01	1128.6	1175.4	1085.5	1200
2025-09-30	1128.6	1175.4	1085.5	1200
2025-09-01	1128.6	1175.4	1085.5	1200
2025-08-01	1128.6	1175.4	1085.5	1200
2025-07-01	1128.6	1175.4	1085.5	1200
2025-06-01	1128.6	1175.4	1085.5	1200
2025-05-01	1128.6	1175.4	1085.5	1200
2025-04-01	1128.6	1175.4	1085.5	1200
2025-03-01	1128.6	1175.4	1085.5	1200
2025-02-01	1127.6	1173.8	1085.5	1200
2025-01-01	1097.6	1138	1084	1200
2024-12-01	1097.6	1138	1084	1200
2024-11-01	1097.6	1138	1084	1200
2024-10-01	1097.6	1138	1084	1200
2024-09-01	1097.6	1138	1084	1200
2024-11-01	1097.6	1138	1084	1200
2024-07-01	1154	1208.2	1084	1200
2024-06-01	1154	1208.2	1084	1200
2024-05-01	1154	1208.2	1084	1200
2024-04-01	1154	1208.2	1084	1200
2024-03-01	1154	1208.2	1084	1200
2024-02-01	1154	1208.2	1084	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	CT Metro District East Top Schools Chess 2024 (U18 Mixed)	2024-07-27	2024-07-28	Standard	Cape Town (WCT)	7	4	0	Yes	Analysis
2	CT Metro District East Top Schools Chess 2023 (U17+U19 Mixed)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	5	5	1	Yes	Analysis
3	District East Schools Chess Individual Trials 2023 (U17 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
4	Kenridge Rapid 2022 (B)	2022-11-05	2022-11-05	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
5	2020 East District Individuals (U15)	2020-01-31	2020-02-01	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
6	Welgemoed Chess Challenge 2018 (U14)	2018-02-24	2018-02-24	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Kenridge Rapid 2022				Tournament District East Schools Chess Individual Trials 2023
		date 2022-11-05	rnd 6	type Rapid	result 1	date 2023-02-03	rnd 1	type Standard	result 1
		Opponent Crofton-Ball, B (Bradford)				Opponent Van Der Bank, V (Vaughan)
2	2	Tournament Welgemoed Chess Challenge 2018				Tournament 2020 East District Individuals
		date 2018-02-24	rnd 5	type Rapid	result 1	date 2020-01-31	rnd 1	type Standard	result 1
		Opponent Mizen, D (Daniel)				Opponent Siwendu, A (Azole)
3	1	Tournament CT Metro District East Top Schools Chess 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-07-29	rnd 5	type Rapid	result 1	date 2023-07-29	rnd 5	type Rapid	result 1
		Opponent Ntshangase, O (Oyithando)				Opponent Ntshangase, O (Oyithando)

#	Games	Start				End
1	2	Tournament 2020 East District Individuals				Tournament District East Schools Chess Individual Trials 2023
		date 2020-02-01	rnd 6	type Standard	result 1	date 2023-02-03	rnd 1	type Standard	result 1
		Opponent Rhoda, C (Claudia)				Opponent Van Der Bank, V (Vaughan)
2	1	Tournament District East Schools Chess Individual Trials 2023				Tournament District East Schools Chess Individual Trials 2023
		date 2023-02-04	rnd 6	type Standard	result 1	date 2023-02-04	rnd 6	type Standard	result 1
		Opponent Bonolo, M (Morebudi)				Opponent Bonolo, M (Morebudi)
3	1	Tournament District East Schools Chess Individual Trials 2023				Tournament District East Schools Chess Individual Trials 2023
		date 2023-02-04	rnd 3	type Standard	result 1	date 2023-02-04	rnd 3	type Standard	result 1
		Opponent Zikithi, L (Lwandle)				Opponent Zikithi, L (Lwandle)

#	Games	Start				End
1	1	Tournament CT Metro District East Top Schools Chess 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-07-29	rnd 5	type Rapid	result 1	date 2023-07-29	rnd 5	type Rapid	result 1
		Opponent Ntshangase, O (Oyithando)				Opponent Ntshangase, O (Oyithando)
2	1	Tournament Kenridge Rapid 2022				Tournament Kenridge Rapid 2022
		date 2022-11-05	rnd 6	type Rapid	result 1	date 2022-11-05	rnd 6	type Rapid	result 1
		Opponent Crofton-Ball, B (Bradford)				Opponent Crofton-Ball, B (Bradford)
3	1	Tournament Kenridge Rapid 2022				Tournament Kenridge Rapid 2022
		date 2022-11-05	rnd 2	type Rapid	result 1	date 2022-11-05	rnd 2	type Rapid	result 1
		Opponent Vermeulen, I (Inge)				Opponent Vermeulen, I (Inge)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Kenridge Rapid 2022				Tournament District East Schools Chess Individual Trials 2023
		date 2022-11-05	rnd 6	type Rapid	result 1	date 2023-02-03	rnd 1	type Standard	result 1
		Opponent Crofton-Ball, B (Bradford)				Opponent Van Der Bank, V (Vaughan)
2	2	Tournament Welgemoed Chess Challenge 2018				Tournament 2020 East District Individuals
		date 2018-02-24	rnd 5	type Rapid	result 1	date 2020-01-31	rnd 1	type Standard	result 1
		Opponent Mizen, D (Daniel)				Opponent Siwendu, A (Azole)
3	1	Tournament CT Metro District East Top Schools Chess 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-07-29	rnd 5	type Rapid	result 1	date 2023-07-29	rnd 5	type Rapid	result 1
		Opponent Ntshangase, O (Oyithando)				Opponent Ntshangase, O (Oyithando)

#	Games	Start				End
1	2	Tournament 2020 East District Individuals				Tournament District East Schools Chess Individual Trials 2023
		date 2020-02-01	rnd 6	type Standard	result 1	date 2023-02-03	rnd 1	type Standard	result 1
		Opponent Rhoda, C (Claudia)				Opponent Van Der Bank, V (Vaughan)
2	1	Tournament District East Schools Chess Individual Trials 2023				Tournament District East Schools Chess Individual Trials 2023
		date 2023-02-04	rnd 6	type Standard	result 1	date 2023-02-04	rnd 6	type Standard	result 1
		Opponent Bonolo, M (Morebudi)				Opponent Bonolo, M (Morebudi)
3	1	Tournament District East Schools Chess Individual Trials 2023				Tournament District East Schools Chess Individual Trials 2023
		date 2023-02-04	rnd 3	type Standard	result 1	date 2023-02-04	rnd 3	type Standard	result 1
		Opponent Zikithi, L (Lwandle)				Opponent Zikithi, L (Lwandle)

#	Games	Start				End
1	1	Tournament CT Metro District East Top Schools Chess 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-07-29	rnd 5	type Rapid	result 1	date 2023-07-29	rnd 5	type Rapid	result 1
		Opponent Ntshangase, O (Oyithando)				Opponent Ntshangase, O (Oyithando)
2	1	Tournament Kenridge Rapid 2022				Tournament Kenridge Rapid 2022
		date 2022-11-05	rnd 6	type Rapid	result 1	date 2022-11-05	rnd 6	type Rapid	result 1
		Opponent Crofton-Ball, B (Bradford)				Opponent Crofton-Ball, B (Bradford)
3	1	Tournament Kenridge Rapid 2022				Tournament Kenridge Rapid 2022
		date 2022-11-05	rnd 2	type Rapid	result 1	date 2022-11-05	rnd 2	type Rapid	result 1
		Opponent Vermeulen, I (Inge)				Opponent Vermeulen, I (Inge)

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	Ntshangase ,O (Oyithando)	2	1	0	1	0	-425	1	1	425	0	0	0
1	Ntshangase ,O (Oyithando)	2	1180.2	1180.2	1	1184	755.2	1	1200	1605.2	0	0	0
2	Nyoka ,L (Lakhiwe)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Nyoka ,L (Lakhiwe)	1	1240.6	815.6	1	1239.2	815.6	0	0	0	0	0	0
3	Brink ,W (Wihan)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Brink ,W (Wihan)	1	1211.4	786.4	1	1143.7	786.4	0	0	0	0	0	0
4	Jaftha ,J (Jeyhlin)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Jaftha ,J (Jeyhlin)	1	1382.6	957.6	1	1380.5	957.6	0	0	0	0	0	0
5	Shepstone ,M (Michael)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Shepstone ,M (Michael)	1	1127.1	702.1	1	1124.4	702.1	0	0	0	0	0	0
6	Msebi ,S (Simamkele)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Msebi ,S (Simamkele)	1	1312.2	887.2	1	1289.2	887.2	0	0	0	0	0	0
7	Rhoda ,C (Claudia)	1	1	425	1	1	425	0	0	0	0	0	0
7	Rhoda ,C (Claudia)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Jacobs ,C (Caitlin)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Jacobs ,C (Caitlin)	1	1250.2	825.2	1	1241	825.2	0	0	0	0	0	0
9	Bonolo ,M (Morebudi)	1	1	425	1	1	425	0	0	0	0	0	0
9	Bonolo ,M (Morebudi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Tulis ,L (Leona)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Tulis ,L (Leona)	1	1200	775	1	1200	775	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Greyling, J (Johnathan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms