Chess South Africa Ratings Database

PLAYER PAGE

Personal

Rheeders, JG (Johan Gerhardus)

Chess SA id

110077903

FIDE id

Date of birth

2010-12-14 (U16)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-01-21

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1166.9	1162.9	821.8	765.4
Raw rating	1166.9	1162.9	821.8	765.4
Weighted rating	1166.9	1162.9	821.8	765.4
Weighted performance	745.6	743.3	0	0
Floor	666.9	662.9	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	173.8	174.8	284.2	308
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-02-01	1200 2018-02-01
Highest raw rating	1166.9 2024-02-01	1162.9 2024-02-01	821.8 2024-02-01	821.8 2018-02-01
Highest weighted rating	1166.9 2024-11-01	1162.9 2024-11-01	821.8 2024-11-01	821.8 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-02-01	1200 2018-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1166.9	1162.9	821.8	765.4
Analysis
Rating	1166.9	1162.9	821.8	765.4
Raw rating	1166.9	1162.9	821.8	765.4
Weighted rating	1166.9	1162.9	821.8
Weighted performance	745.6	743.3	0
K-factor	40	40	40	40
Floor	666.9	662.9	500	500
Max/Min rating change allowed	173.8	174.8	284.2	308
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	1166.9	1162.9	821.8	765.4
New weighted rating	1166.9	1162.9	821.8	765.4
New weighted performance	745.2	742.8	0	0
Temp new rating	1166.9	1162.9	821.8	765.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1166.9	1162.9	821.8	765.4
New K-factor	40	40	40	40
New floor	666.9	662.9	500	500

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	0	0	0
	5	5	0
	15	15	0
	0	0	0
History	137	132	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	69	32	46.38	-30.8	955.2	924.4
Standard	64	32	50	0	935.5	935.5
Rapid	0	0	0	0	0	0
Blitz	5	0	0	-425	1207.5	782.5

Date	Main	Standard	Rapid	Blitz
2025-09-30	1166.9	1162.9	821.8	765.4
2025-09-01	1166.9	1162.9	821.8	765.4
2025-08-01	1166.9	1162.9	821.8	765.4
2025-07-01	1166.9	1162.9	821.8	765.4
2025-06-01	1166.9	1162.9	821.8	765.4
2025-05-01	1166.9	1162.9	821.8	765.4
2025-04-01	1166.9	1162.9	821.8	765.4
2025-03-01	1166.9	1162.9	821.8	765.4
2025-02-01	1166.9	1162.9	821.8	765.4
2025-01-01	1166.9	1162.9	821.8	765.4
2024-12-01	1166.9	1162.9	821.8	765.4
2024-11-01	1166.9	1162.9	821.8	765.4
2024-10-01	1166.9	1162.9	821.8	765.4
2024-09-01	1166.9	1162.9	821.8	765.4
2024-08-01	1166.9	1162.9	821.8	765.4
2024-07-01	1166.9	1162.9	821.8	765.4
2024-06-01	1166.9	1162.9	821.8	765.4
2024-08-01	1166.9	1162.9	821.8	765.4
2024-04-01	1166.9	1162.9	821.8	765.4
2024-03-01	1166.9	1162.9	821.8	765.4
2024-02-01	1166.9	1162.9	821.8	765.4
2024-01-01	1166.9	1162.9	821.8	765.4
2023-12-01	1166.9	1162.9	821.8	765.4
2023-11-01	1166.9	1162.9	821.8	765.4

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	Harties Wolf Pack 2023 (Knights)	2023-01-21	2023-01-21	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
2	Bojanala Chess Federation Clash of Schools 2022 (PS Championship)	2022-07-22	2022-07-22	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
3	RHS Know Thyself 2022 (C)	2022-04-23	2022-04-23	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
4	Lebone II 2022 (C)	2022-02-12	2022-02-12	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
5	South African Junior Blitz 2018 (U10)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	5	0	Yes	Analysis
6	South African Junior Team Championships 2018 (U10A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
7	Bojanala Regionals 2018 (U10)	2018-09-15	2018-09-15	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
8	Laerskool Brits Tournament 2018 (U10)	2018-08-04	2018-08-04	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
9	Ho�rskool Frikkie Meyer 2018 (B)	2018-07-21	2018-07-21	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
10	Laerskool Rustenburg 2018 (D)	2018-03-24	2018-03-24	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
11	Hoerskool Brits 2018 (U10)	2018-03-17	2018-03-17	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
12	Laerskool Rustenburg Noord Primary 2018 (D)	2018-02-24	2018-02-24	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
13	South African Junior Team Championships 2017 (U8A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis

#	Games	Start				End
1	5	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Harties Wolf Pack 2023
		date 2022-07-22	rnd 2	type Standard	result 1	date 2023-01-21	rnd 1	type Standard	result 1
		Opponent Jansen Van Vuuren, L (Lourein)				Opponent Mokoena, T (Thato)
2	4	Tournament Hoerskool Brits 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-17	rnd 5	type Standard	result 1	date 2018-03-24	rnd 3	type Standard	result 1
		Opponent De Beer, M (Marione)				Opponent De Beer, W (Wian)
3	3	Tournament RHS Know Thyself 2022				Tournament RHS Know Thyself 2022
		date 2022-04-23	rnd 3	type Standard	result 1	date 2022-04-23	rnd 5	type Standard	result 1
		Opponent Babusi, R (Resego)				Opponent De Kock, D (De-Han)

#	Games	Start				End
1	5	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Harties Wolf Pack 2023
		date 2022-07-22	rnd 2	type Standard	result 1	date 2023-01-21	rnd 1	type Standard	result 1
		Opponent Jansen Van Vuuren, L (Lourein)				Opponent Mokoena, T (Thato)
2	4	Tournament Hoerskool Brits 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-17	rnd 5	type Standard	result 1	date 2018-03-24	rnd 3	type Standard	result 1
		Opponent De Beer, M (Marione)				Opponent De Beer, W (Wian)
3	3	Tournament RHS Know Thyself 2022				Tournament RHS Know Thyself 2022
		date 2022-04-23	rnd 3	type Standard	result 1	date 2022-04-23	rnd 5	type Standard	result 1
		Opponent Babusi, R (Resego)				Opponent De Kock, D (De-Han)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Harties Wolf Pack 2023
		date 2022-07-22	rnd 2	type Standard	result 1	date 2023-01-21	rnd 1	type Standard	result 1
		Opponent Jansen Van Vuuren, L (Lourein)				Opponent Mokoena, T (Thato)
2	4	Tournament Hoerskool Brits 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-17	rnd 5	type Standard	result 1	date 2018-03-24	rnd 3	type Standard	result 1
		Opponent De Beer, M (Marione)				Opponent De Beer, W (Wian)
3	3	Tournament RHS Know Thyself 2022				Tournament RHS Know Thyself 2022
		date 2022-04-23	rnd 3	type Standard	result 1	date 2022-04-23	rnd 5	type Standard	result 1
		Opponent Babusi, R (Resego)				Opponent De Kock, D (De-Han)

#	Games	Start				End
1	5	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Harties Wolf Pack 2023
		date 2022-07-22	rnd 2	type Standard	result 1	date 2023-01-21	rnd 1	type Standard	result 1
		Opponent Jansen Van Vuuren, L (Lourein)				Opponent Mokoena, T (Thato)
2	4	Tournament Hoerskool Brits 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-17	rnd 5	type Standard	result 1	date 2018-03-24	rnd 3	type Standard	result 1
		Opponent De Beer, M (Marione)				Opponent De Beer, W (Wian)
3	3	Tournament RHS Know Thyself 2022				Tournament RHS Know Thyself 2022
		date 2022-04-23	rnd 3	type Standard	result 1	date 2022-04-23	rnd 5	type Standard	result 1
		Opponent Babusi, R (Resego)				Opponent De Kock, D (De-Han)

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	Morkel ,DJ (Douglas Jonathan)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Morkel ,DJ (Douglas Jonathan)	3	1067.2	1208.9	3	1049.5	1208.9	0	0	0	0	0	0
2	Jansen Van Vuuren ,L (Lourein)	2	2	425	2	2	425	0	0	0	0	0	0
2	Jansen Van Vuuren ,L (Lourein)	2	886	1311.1	2	862.6	1311.1	0	0	0	0	0	0
3	Sekhute ,K (Khumo)	2	2	425	2	2	425	0	0	0	0	0	0
3	Sekhute ,K (Khumo)	2	653.2	1078.2	2	647.2	1078.2	0	0	0	0	0	0
4	Du Preez ,M (Morne)	2	2	425	2	2	425	0	0	0	0	0	0
4	Du Preez ,M (Morne)	2	528.5	953.5	2	533.4	953.5	0	0	0	0	0	0
5	Liebenberg ,M (Michael)	2	2	425	2	2	425	0	0	0	0	0	0
5	Liebenberg ,M (Michael)	2	799.3	1224.3	2	787.2	1224.3	0	0	0	0	0	0
6	Byliefeldt ,L (Leroux)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Byliefeldt ,L (Leroux)	2	910.8	485.8	2	891.2	485.8	0	0	0	0	0	0
7	De Beer ,W (Wian)	1	1	425	1	1	425	0	0	0	0	0	0
7	De Beer ,W (Wian)	1	592.8	1017.8	1	594.4	1017.8	0	0	0	0	0	0
8	Ndlovu ,O (Orateng)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Ndlovu ,O (Orateng)	1	1169.8	744.8	1	1164.8	744.8	0	0	0	0	0	0
9	Pooe ,K (Kgolagqno)	1	1	425	1	1	425	0	0	0	0	0	0
9	Pooe ,K (Kgolagqno)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Leroke ,K (Kamogelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Leroke ,K (Kamogelo)	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

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Rheeders, JG (Johan Gerhardus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms