Chess South Africa Ratings Database

PLAYER PAGE

Personal

Witbooi, G (Gere)

Chess SA id

1090150670

FIDE id

Date of birth

2009-05-31 (U18)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-04-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1092.6

Item	Main	Standard	Rapid	Blitz
Rating	1202.9	1108.4	1251.6	1200
Raw rating	1202.9	1108.4	1251.6	1200
Weighted rating	1193.5	1104.4	1240.8	1200
Weighted performance	1095.2	1017.6	1137.5	0
Floor	757	700	751.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	165.1	188.9	154.1	165.8
Highest rating	1257 2025-04-01	1200 2018-10-01	1251.9 2024-04-01	1200 2018-10-01
Highest raw rating	1257 2025-04-01	1200 2019-12-01	1251.6 2025-03-01	1200 2024-03-01
Highest weighted rating	1257 2018-10-01	1200 2018-10-01	1235.1 2025-08-01	1200 2018-10-01
Highest weighted performance	1257 2025-04-01	1200 2019-12-01	1251.9 2024-04-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1202.9	1108.4	1251.6	1200
Analysis
Rating	1202.9	1108.4	1251.6	1200
Raw rating	1202.9	1108.4	1251.6	1200
Weighted rating	1193.5	1104.4	1240.8
Weighted performance	1095.2	1017.6	1137.5
K-factor	36	36	36	36
Floor	757	700	751.6	700
Max/Min rating change allowed	165.1	188.9	154.1	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	1202.9	1108.4	1251.6	1200
New weighted rating	1196.3	1105.8	1243.1	1200
New weighted performance	1094.8	1017.2	1137	0
Temp new rating	1202.9	1108.4	1251.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1202.9	1108.4	1251.6	1200
New K-factor	36	36	36	36
New floor	757	700	751.6	700

Item	Main	Standard	Rapid
	0	0	0
	22	10	12
	19	9	10
	33	11	22
	0	0	0
	0	0	0
History	74	30	44

Games since
	Main 46	Standard 19		Rapid 27		Blitz 0
Gender	Male
Age group	U18
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	4012		1335		125
Male	3019		935		78
U18	590		179		17
U18 Male	476		134		11
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1337		678		86
Male	1068		524		57
U18	159		81		8
U18 Male	141		68		4
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	22	9.5	43.18	-58	1280.2	1222.2
Standard	10	3	30	-170	1327.4	1157.4
Rapid	12	6.5	54.17	35.4	1240.8	1276.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	74	29	39.19	-91.9	1231.1	1139.2
Standard	30	8	26.67	-198.3	1258.7	1060.3
Rapid	44	21	47.73	-19.3	1212.2	1192.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1202.9	1108.4	1251.6	1200
2025-09-01	1202.9	1108.4	1251.6	1200
2025-08-01	1202.9	1108.4	1251.6	1200
2025-07-01	1202.9	1108.4	1251.6	1200
2025-06-01	1202.9	1108.4	1251.6	1200
2025-05-01	1202.9	1108.4	1251.6	1200
2025-04-01	1257	1157.6	1251.6	1200
2025-03-01	1220.4	1108.8	1251.6	1200
2025-02-01	1196.3	1108.8	1238.7	1200
2025-01-01	1196.3	1108.8	1238.7	1200
2024-12-01	1196.3	1108.8	1238.7	1200
2024-11-01	1196.3	1108.8	1238.7	1200
2024-10-01	1196.3	1108.8	1238.7	1200
2024-09-01	1196.3	1108.8	1238.7	1200
2024-08-01	1196.3	1108.8	1238.7	1200
2024-07-01	1160	1069.6	1238.7	1200
2024-06-01	1160	1069.6	1238.7	1200
2024-08-01	1160	1069.6	1238.7	1200
2024-04-01	1110.6	1069.6	1186.8	1200
2024-03-01	1095.3	1043.2	1186.8	1200
2024-02-01	1065.6	1043.2	1148.4	1200
2024-01-01	1065.6	1043.2	1148.4	1200
2023-12-01	1065.6	1043.2	1148.4	1200
2023-11-01	1065.6	1043.2	1148.4	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	Western Cape Schools Individual Championship 2025 (U17 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	5	0	Yes	Analysis
2	Overberg Schools - HS Closed 2025 (U17 Boys)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
3	Overberg Schools - HS Trials 2025 (U17 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
4	Curro Hermanus Summer Open 2025 (U17+U19)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools Individual Championship 2025 (U17 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	5	0	Yes	Analysis
2	Overberg Schools - HS Closed 2025 (U17 Boys)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
3	Overberg Schools - HS Trials 2025 (U17 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
4	Curro Hermanus Summer Open 2025 (U17+U19)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	2.5	Yes	Analysis
5	Overberg Schools - Top Schools 2024 (U15 Mixed)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	4	2	Yes	Analysis
6	Curro Hermanus Freedom Day Rapid 2024 (U15)	2024-04-27	2024-04-27	Rapid	Overberg (WOS)	5	5	3.5	Yes	Analysis
7	Overberg High Schools Trails 2024 (U15 Boys)	2024-03-02	2024-03-02	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
8	Overberg High Schools Trails 2024 (U15)	2024-02-24	2024-02-24	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
9	Kingsway Open 2023 (U12+U14)	2023-10-28	2023-10-28	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
10	Western Cape Top Schools 2023 (U15 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	0	Yes	Analysis
11	Overberg Top Schools 2023 (U15+U18)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
12	Hermanus Chess Club Rapid 2023 (A)	2023-08-26	2023-08-26	Rapid	Overberg (WOS)	5	4	1	Yes	Analysis
13	Hermanus Rapid 2023 (C)	2023-04-22	2023-04-22	Rapid	Overberg (WOS)	6	5	2	Yes	Analysis
14	Overberg High Schools Trails 2023 (U15)	2023-02-24	2023-02-24	Rapid	Overberg (WOS)	5	4	1	Yes	Analysis
15	Overberg Schools Open Tournament 2023 (U14)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	4	0	Yes	Analysis

#	Games	Start				End
1	5	Tournament Curro Hermanus Freedom Day Rapid 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-04-27	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 1	type Standard	result 1
		Opponent Buchner, T (Tristan)				Opponent Buchner, T (Tristan)
2	4	Tournament Kingsway Open 2023				Tournament Overberg High Schools Trails 2024
		date 2023-10-28	rnd 3	type Rapid	result 1	date 2024-02-24	rnd 1	type Rapid	result 1
		Opponent Oudejans, R (Rebecca)				Opponent Louw, C (Chad)
3	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Mnganisa, O (Ongama)				Opponent De Kock, S (Sebastian)

#	Games	Start				End
1	2	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Matinywa, T (Thobani)				Opponent Theron, S (Stephan)
2	2	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Standard	result 1
		Opponent Pappas, N (Nathan)				Opponent Coetzee, S (Sebastian)
3	1	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 1	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Zindonda, B (Bradley)				Opponent Zindonda, B (Bradley)

#	Games	Start				End
1	4	Tournament Curro Hermanus Freedom Day Rapid 2024				Tournament Curro Hermanus Freedom Day Rapid 2024
		date 2024-04-27	rnd 2	type Rapid	result 1	date 2024-04-27	rnd 5	type Rapid	result 1
		Opponent Buchner, T (Tristan)				Opponent Brink, S (Samantha)
2	4	Tournament Kingsway Open 2023				Tournament Overberg High Schools Trails 2024
		date 2023-10-28	rnd 3	type Rapid	result 1	date 2024-02-24	rnd 1	type Rapid	result 1
		Opponent Oudejans, R (Rebecca)				Opponent Louw, C (Chad)
3	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Mnganisa, O (Ongama)				Opponent De Kock, S (Sebastian)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Kingsway Open 2023				Tournament Overberg High Schools Trails 2024
		date 2023-10-28	rnd 3	type Rapid	result 1	date 2024-02-24	rnd 1	type Rapid	result 1
		Opponent Oudejans, R (Rebecca)				Opponent Louw, C (Chad)
2	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Mnganisa, O (Ongama)				Opponent De Kock, S (Sebastian)
3	2	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Matinywa, T (Thobani)				Opponent Theron, S (Stephan)

#	Games	Start				End
1	2	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Matinywa, T (Thobani)				Opponent Theron, S (Stephan)
2	2	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Standard	result 1
		Opponent Pappas, N (Nathan)				Opponent Coetzee, S (Sebastian)
3	1	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 1	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Zindonda, B (Bradley)				Opponent Zindonda, B (Bradley)

#	Games	Start				End
1	4	Tournament Kingsway Open 2023				Tournament Overberg High Schools Trails 2024
		date 2023-10-28	rnd 3	type Rapid	result 1	date 2024-02-24	rnd 1	type Rapid	result 1
		Opponent Oudejans, R (Rebecca)				Opponent Louw, C (Chad)
2	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Mnganisa, O (Ongama)				Opponent De Kock, S (Sebastian)
3	2	Tournament Curro Hermanus Summer Open 2025				Tournament Curro Hermanus Summer Open 2025
		date 2025-02-08	rnd 2	type Rapid	result 1	date 2025-02-08	rnd 3	type Rapid	result 1
		Opponent Matha, J (Jessica)				Opponent Lzwedala, A (Athule)

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	Buchner ,T (Tristan)	2	2	425	1	1	425	1	1	425	0	0	0
1	Buchner ,T (Tristan)	2	1171.8	1596.8	1	1179.8	1596.8	1	1200	1596.8	0	0	0
2	Valentine ,L (Luke)	2	0	-425	1	0	-425	1	0	-425	0	0	0
2	Valentine ,L (Luke)	2	1596.2	1171.2	1	1590.8	1171.2	1	1476.2	1171.2	0	0	0
3	Kiessling ,K (Kai)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	Kiessling ,K (Kai)	2	1416	991	1	1433.4	991	1	1286.2	991	0	0	0
4	Lotter ,M (Michael)	2	0	-425	0	0	0	2	0	-425	0	0	0
4	Lotter ,M (Michael)	2	1273.2	848.2	0	0	0	2	1263.5	848.2	0	0	0
5	Duminy ,M (Marc)	2	1.5	212.5	0	0	0	2	1.5	212.5	0	0	0
5	Duminy ,M (Marc)	2	948.5	1161	0	0	0	2	853.4	1161	0	0	0
6	De Kock ,S (Sebastian)	2	1	0	0	0	0	2	1	0	0	0	0
6	De Kock ,S (Sebastian)	2	1195.7	1195.7	0	0	0	2	1195.2	1195.7	0	0	0
7	Mampa ,D (Dillan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mampa ,D (Dillan)	1	1245.4	820.4	1	1253.5	820.4	0	0	0	0	0	0
8	Witbooi ,J (Juan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Witbooi ,J (Juan)	1	1266.9	841.9	1	1251.9	841.9	0	0	0	0	0	0
9	Coetzee ,S (Sebastian)	1	1	425	1	1	425	0	0	0	0	0	0
9	Coetzee ,S (Sebastian)	1	1201.3	1626.3	1	1196	1626.3	0	0	0	0	0	0
10	Zindonda ,B (Bradley)	1	1	425	1	1	425	0	0	0	0	0	0
10	Zindonda ,B (Bradley)	1	1144.6	1569.6	1	1157.6	1569.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Witbooi, G (Gere)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms