Chess South Africa Ratings Database

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Grib, J (Johannes)

Chess SA id

171011166

FIDE id

Date of birth

1971-09-01 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1455	1488.7	1408	1408
Raw rating	1454.4	1487.7	1408	1408
Weighted rating	1455	1488.7	1406.9	1406.9
Weighted performance	1201.4	1206.5	0	0
Floor	966	1003.7	908	908
K-factor	32	32	32	32
Min/Max rating change allowed	115.4	110.1	123.3	123.3
Highest rating	1477 2019-10-01	1503.7 2024-05-01	1408 2024-02-01	1408 2024-02-01
Highest raw rating	1466 2024-05-01	1503.7 2024-05-01	1408 2024-02-01	1408 2024-02-01
Highest weighted rating	1454.4 2025-08-01	1487.7 2025-08-01	1404.3 2025-08-01	1404.3 2025-08-01
Highest weighted performance	1477 2019-10-01	1477.4 2019-10-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.1	0.2	0	0
New rating	1455.1	1488.9	1408	1408
Analysis
Rating	1455	1488.7	1408	1408
Raw rating	1454.4	1487.7	1408	1408
Weighted rating	1455	1488.7	1406.9
Weighted performance	1201.4	1206.5	0
K-factor	32	32	32	32
Floor	966	1003.7	908	908
Max/Min rating change allowed	115.4	110.1	123.3	123.3
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	1454.4	1487.7	1408	1408
New weighted rating	1455.1	1488.9	1407.6	1407.6
New weighted performance	1200.9	1206	0	0
Temp new rating	1455.1	1488.9	1408	1408
Temp new rating +/-	0.1	0.2	0	0
Final new rating +/-	0.1	0.2	0	0
New rating	1455.1	1488.9	1408	1408
New K-factor	32	32	32	32
New floor	966	1003.7	908	908

Item	Main	Standard
	0	0
	6	6
	10	10
	8	8
	9	9
	0	0
History	189	189

Games since
	Main 20	Standard 20		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	6	3.5	58.33	70.8	1357.9	1428.7
Standard	6	3.5	58.33	70.8	1357.9	1428.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	57	40.5	71.05	178.9	1274	1452.9
Standard	57	40.5	71.05	178.9	1274	1452.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1454.4	1487.7	1408	1408
2025-09-01	1454.4	1487.7	1408	1408
2025-08-01	1454.4	1487.7	1408	1408
2025-07-01	1454	1486.9	1408	1408
2025-06-01	1453.6	1486.1	1408	1408
2025-05-01	1453.2	1485.2	1408	1408
2025-04-01	1452.5	1483.6	1408	1408
2025-03-01	1453	1485.5	1408	1408
2025-02-01	1453	1485.5	1408	1408
2025-01-01	1453	1485.5	1408	1408
2024-12-01	1453	1485.5	1408	1408
2024-11-01	1453	1485.5	1408	1408
2024-10-01	1453	1485.5	1408	1408
2024-09-01	1466	1503.7	1408	1408
2024-08-01	1466	1503.7	1408	1408
2024-07-01	1466	1503.7	1408	1408
2024-06-01	1466	1503.7	1408	1408
2024-08-01	1466	1503.7	1408	1408
2024-04-01	1452	1496.3	1408	1408
2024-03-01	1452	1496.3	1408	1408
2024-02-01	1452	1496.3	1408	1408
2024-01-01	1452	1496.3	1408	1408
2023-12-01	1418.8	1417.4	1296.1	1296.1
2023-11-01	1418.8	1417.4	1296.1	1296.1

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	SA Braille Open 2025	2025-03-22	2025-03-23	Standard	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	SA Braille Open 2025	2025-03-22	2025-03-23	Standard	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
2	2024 Tuks Open Chess Tournament (Braille)	2024-08-28	2024-08-28	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
3	South African Braille Open 2024	2024-03-09	2024-03-09	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
4	2023 Tuks Open Chess Tournament (Braille)	2023-10-07	2023-10-07	Standard	Tshwane (GTP)	4	4	2	Yes	Analysis
5	ANIME @ Play Chess 2023 (Braille)	2023-08-12	2023-08-12	Standard	Ekurhuleni (GE)	4	4	2.5	Yes	Analysis
6	2022 Wynie Robbertse Open (Development)	2022-10-08	2022-10-08	Standard	Tshwane (GTP)	5	4	4	Yes	Analysis
7	Ekurhuleni Chess Springs Club Open 2022 (F)	2022-09-03	2022-09-03	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
8	2019 South African Braille Championship	2020-01-11	2020-01-12	Standard	4 Knights (4K)	5	5	4	Yes	Analysis
9	2019 Gauteng Braille Open	2019-10-26	2019-10-26	Standard	Tshwane (GTP)	4	4	4	Yes	Analysis
10	2019 SWVG Arnold Classic (Blind)	2019-05-18	2019-05-18	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
11	South African Braille Championships 2018	2018-12-21	2018-12-23	Standard	4 Knights (4K)	5	5	2.5	Yes	Analysis
12	SWVG Arnold Classic Rapid & Blitz 2018 (Braille)	2018-05-18	2018-05-18	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	10	Tournament Ekurhuleni Chess Springs Club Open 2022				Tournament ANIME @ Play Chess 2023
		date 2022-09-03	rnd 3	type Standard	result 1	date 2023-08-12	rnd 3	type Standard	result 1
		Opponent Grib, J (Jessica)				Opponent Grib, J (Jessica)
2	8	Tournament 2019 SWVG Arnold Classic				Tournament 2019 South African Braille Championship
		date 2019-05-18	rnd 4	type Standard	result 1	date 2020-01-11	rnd 2	type Standard	result 1
		Opponent Strydom, BV (Brett)				Opponent Strydom, BV (Brett)
3	4	Tournament South African Braille Open 2024				Tournament 2024 Tuks Open Chess Tournament
		date 2024-03-09	rnd 5	type Standard	result 1	date 2024-08-28	rnd 3	type Standard	result 1
		Opponent Grib, J (Jessica)				Opponent Roberts, MA (Mario)

#	Games	Start				End
1	10	Tournament Ekurhuleni Chess Springs Club Open 2022				Tournament ANIME @ Play Chess 2023
		date 2022-09-03	rnd 3	type Standard	result 1	date 2023-08-12	rnd 3	type Standard	result 1
		Opponent Grib, J (Jessica)				Opponent Grib, J (Jessica)
2	8	Tournament 2019 SWVG Arnold Classic				Tournament 2019 South African Braille Championship
		date 2019-05-18	rnd 4	type Standard	result 1	date 2020-01-11	rnd 2	type Standard	result 1
		Opponent Strydom, BV (Brett)				Opponent Strydom, BV (Brett)
3	4	Tournament South African Braille Open 2024				Tournament 2024 Tuks Open Chess Tournament
		date 2024-03-09	rnd 5	type Standard	result 1	date 2024-08-28	rnd 3	type Standard	result 1
		Opponent Grib, J (Jessica)				Opponent Roberts, MA (Mario)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament 2019 SWVG Arnold Classic				Tournament 2019 South African Braille Championship
		date 2019-05-18	rnd 4	type Standard	result 1	date 2020-01-11	rnd 2	type Standard	result 1
		Opponent Strydom, BV (Brett)				Opponent Strydom, BV (Brett)
2	7	Tournament Ekurhuleni Chess Springs Club Open 2022				Tournament 2022 Wynie Robbertse Open
		date 2022-09-03	rnd 3	type Standard	result 1	date 2022-10-08	rnd 4	type Standard	result 1
		Opponent Grib, J (Jessica)				Opponent Neethling, F (Francois)
3	4	Tournament 2023 Tuks Open Chess Tournament				Tournament South African Braille Open 2024
		date 2023-10-07	rnd 4	type Standard	result 1	date 2024-03-09	rnd 3	type Standard	result 1
		Opponent Ndlovu, J (Jonas)				Opponent Theunis, DP (Desmond)

#	Games	Start				End
1	8	Tournament 2019 SWVG Arnold Classic				Tournament 2019 South African Braille Championship
		date 2019-05-18	rnd 4	type Standard	result 1	date 2020-01-11	rnd 2	type Standard	result 1
		Opponent Strydom, BV (Brett)				Opponent Strydom, BV (Brett)
2	7	Tournament Ekurhuleni Chess Springs Club Open 2022				Tournament 2022 Wynie Robbertse Open
		date 2022-09-03	rnd 3	type Standard	result 1	date 2022-10-08	rnd 4	type Standard	result 1
		Opponent Grib, J (Jessica)				Opponent Neethling, F (Francois)
3	4	Tournament 2023 Tuks Open Chess Tournament				Tournament South African Braille Open 2024
		date 2023-10-07	rnd 4	type Standard	result 1	date 2024-03-09	rnd 3	type Standard	result 1
		Opponent Ndlovu, J (Jonas)				Opponent Theunis, DP (Desmond)

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	Grib ,J (Jessica)	7	7	425	7	7	425	0	0	0	0	0	0
1	Grib ,J (Jessica)	7	1103.7	1528.7	7	1091.1	1528.7	0	0	0	0	0	0
2	De Nobrega ,FP (Florindo)	6	4.5	212.5	6	4.5	212.5	0	0	0	0	0	0
2	De Nobrega ,FP (Florindo)	6	1232.9	1445.4	6	1245.7	1445.4	0	0	0	0	0	0
3	De Meyer ,B (Bruno)	6	0	-425	6	0	-425	0	0	0	0	0	0
3	De Meyer ,B (Bruno)	6	1589.5	1164.5	6	1606.9	1164.5	0	0	0	0	0	0
4	Brown ,S (Sam)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
4	Brown ,S (Sam)	3	1285.3	1426.9	3	1289.7	1426.9	0	0	0	0	0	0
5	Kotze ,CP (Charl)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
5	Kotze ,CP (Charl)	3	1251	1534.3	3	1241	1534.3	0	0	0	0	0	0
6	Blom ,H (Hermanus Christo)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
6	Blom ,H (Hermanus Christo)	3	1204.5	1346.1	3	1191.1	1346.1	0	0	0	0	0	0
7	Joubert ,J (Jacques)	3	3	425	3	3	425	0	0	0	0	0	0
7	Joubert ,J (Jacques)	3	1165.1	1590.1	3	1158.8	1590.1	0	0	0	0	0	0
8	Kruger ,FJ (Fransiena Jacoba)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
8	Kruger ,FJ (Fransiena Jacoba)	3	1242.9	1101.2	3	1258.9	1101.2	0	0	0	0	0	0
9	Roberts ,MA (Mario Andre)	2	2	425	2	2	425	0	0	0	0	0	0
9	Roberts ,MA (Mario Andre)	2	1119.8	1544.8	2	1146.2	1544.8	0	0	0	0	0	0
10	Lucas ,M (Melvyn)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Lucas ,M (Melvyn)	2	1499.2	1074.2	2	1503.6	1074.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Grib, J (Johannes)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms