Chess South Africa Ratings Database

PLAYER PAGE

Personal

Witbooi, JB (Jan Bonakele)

Chess SA id

199055897

FIDE id

Date of birth

1999-02-20 (Adult)

Gender

Male

Region

Dr Kenneth Kaunda (NWP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1346.2	1354.5	1207.1	1319.5
Raw rating	1346.2	1354.5	1207.1	1319.5
Weighted rating	1333.2	1338	1207.1	1319.5
Weighted performance	870.3	852.1	0	0
Floor	846.2	854.5	707.1	819.5
K-factor	36	36	36	36
Min/Max rating change allowed	134.6	133.1	164.1	139.9
Highest rating	1346.2 2025-04-01	1354.5 2025-04-01	1207.1 2019-10-01	1479.5 2019-12-01
Highest raw rating	1346.2 2025-04-01	1354.5 2025-04-01	1207.1 2024-02-01	1319.5 2024-02-01
Highest weighted rating	1346.2 2022-03-01	1354.5 2022-03-01	1207.1 2019-10-01	1319.5 2024-02-01
Highest weighted performance	1249.3 2020-03-01	1242 2018-01-01	1200 2024-02-01	1479.5 2019-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1346.2	1354.5	1207.1	1319.5
Analysis
Rating	1346.2	1354.5	1207.1	1319.5
Raw rating	1346.2	1354.5	1207.1	1319.5
Weighted rating	1333.2	1338	1207.1
Weighted performance	870.3	852.1	0
K-factor	36	36	36	36
Floor	846.2	854.5	707.1	819.5
Max/Min rating change allowed	134.6	133.1	164.1	139.9
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	1346.2	1354.5	1207.1	1319.5
New weighted rating	1334.6	1339.8	1207.1	1319.5
New weighted performance	869.8	851.6	0	0
Temp new rating	1346.2	1354.5	1207.1	1319.5
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1346.2	1354.5	1207.1	1319.5
New K-factor	36	36	36	36
New floor	846.2	854.5	707.1	819.5

Item	Main	Standard	Blitz
	0	0	0
	4	4	0
	0	0	0
	0	0	0
	9	9	0
	0	0	0
History	142	133	9

Games since
	Main 4	Standard 4		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Dr Kenneth Kaunda (NWP)
Province	Northwest (NW)
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	4	2.5	62.5	106.2	1396.4	1502.7
Standard	4	2.5	62.5	106.2	1396.4	1502.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	43	21	48.84	-9.9	1422.7	1412.8
Standard	34	15.5	45.59	-37.5	1407	1369.5
Rapid	0	0	0	0	0	0
Blitz	9	5.5	61.11	94.4	1481.9	1576.3

Date	Main	Standard	Rapid	Blitz
2025-09-30	1346.2	1354.5	1207.1	1319.5
2025-09-01	1346.2	1354.5	1207.1	1319.5
2025-08-01	1346.2	1354.5	1207.1	1319.5
2025-07-01	1346.2	1354.5	1207.1	1319.5
2025-06-01	1346.2	1354.5	1207.1	1319.5
2025-05-01	1346.2	1354.5	1207.1	1319.5
2025-04-01	1346.2	1354.5	1207.1	1319.5
2025-03-01	1320.7	1322.2	1207.1	1319.5
2025-02-01	1320.7	1322.2	1207.1	1319.5
2025-01-01	1320.7	1322.2	1207.1	1319.5
2024-12-01	1320.7	1322.2	1207.1	1319.5
2024-11-01	1320.7	1322.2	1207.1	1319.5
2024-10-01	1320.7	1322.2	1207.1	1319.5
2024-09-01	1320.7	1322.2	1207.1	1319.5
2024-08-01	1320.7	1322.2	1207.1	1319.5
2024-07-01	1320.7	1322.2	1207.1	1319.5
2024-06-01	1320.7	1322.2	1207.1	1319.5
2024-08-01	1320.7	1322.2	1207.1	1319.5
2024-04-01	1320.7	1322.2	1207.1	1319.5
2024-03-01	1320.7	1322.2	1207.1	1319.5
2024-02-01	1320.7	1322.2	1207.1	1319.5
2024-01-01	1320.7	1322.2	1207.1	1319.5
2023-12-01	1320.7	1322.2	1207.1	1319.5
2023-11-01	1320.7	1322.2	1207.1	1319.5

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	Ekurhuleni Chess Open 2025 (B)	2025-03-15	2025-03-15	Standard	Ekurhuleni (GE)	5	4	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni Chess Open 2025 (B)	2025-03-15	2025-03-15	Standard	Ekurhuleni (GE)	5	4	2.5	Yes	Analysis
2	Ussa Chess Championships 2022 (Open)	2022-12-05	2022-12-09	Standard	Frances Baard (NCF)	9	9	4.5	Yes	Analysis
3	JNW Club - Trinityhouse Little Falls Open 2020 (B)	2020-03-14	2020-03-14	Standard	Johannesburg Metro (GJM)	5	5	4.5	Yes	Analysis
4	2019 USSA Championships (Open)	2019-12-02	2019-12-06	Standard	Sarah Baartman (ESB)	9	9	4	Yes	Analysis
5	2019 USSA Championships (Blitz)	2019-12-04	2019-12-04	Blitz	Sarah Baartman (ESB)	9	9	5.5	Yes	Analysis
6	Hervormde Kerk 2018 (A)	2018-03-10	2018-03-10	Standard	Dr Kenneth Kaunda (NWP)	5	0	0	No	Analysis
7	South African Junior Team Championships 2017 (U20A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	0	Yes	Analysis

#	Games	Start				End
1	8	Tournament 2019 USSA Championships				Tournament Ussa Chess Championships 2022
		date 2019-12-06	rnd 9	type Standard	result 1	date 2022-12-05	rnd 2	type Standard	result 0.5
		Opponent Sajini, A (Athenkosi)				Opponent Mbokazi, B (Banele)
2	5	Tournament Ussa Chess Championships 2022				Tournament Ekurhuleni Chess Open 2025
		date 2022-12-08	rnd 7	type Standard	result 1	date 2025-03-15	rnd 3	type Standard	result 1
		Opponent Sithole, B (Bongumusa Kevin)				Opponent Kale, A (Akhona)
3	3	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-03	rnd 4	type Standard	result 1	date 2019-12-04	rnd 2	type Blitz	result 1
		Opponent Tebogo, B (Blessings Makofane)				Opponent Malatji, HT (Happy)

#	Games	Start				End
1	8	Tournament 2019 USSA Championships				Tournament Ussa Chess Championships 2022
		date 2019-12-06	rnd 9	type Standard	result 1	date 2022-12-05	rnd 2	type Standard	result 0.5
		Opponent Sajini, A (Athenkosi)				Opponent Mbokazi, B (Banele)
2	5	Tournament Ussa Chess Championships 2022				Tournament Ekurhuleni Chess Open 2025
		date 2022-12-08	rnd 7	type Standard	result 1	date 2025-03-15	rnd 3	type Standard	result 1
		Opponent Sithole, B (Bongumusa Kevin)				Opponent Kale, A (Akhona)
3	2	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-05	rnd 6	type Standard	result 0.5	date 2019-12-05	rnd 7	type Standard	result 0.5
		Opponent Van Der Lingen, WR (Waldi)				Opponent Silaule, M (Mandla)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-04	rnd 8	type Blitz	result 1	date 2019-12-04	rnd 9	type Blitz	result 1
		Opponent Madiya, S (Sisekelo)				Opponent Lubambo, S (Skhulile)
2	2	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-04	rnd 1	type Blitz	result 0.5	date 2019-12-04	rnd 2	type Blitz	result 1
		Opponent Hastie, SEH (Sachin)				Opponent Malatji, HT (Happy)
3	1	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-04	rnd 6	type Blitz	result 1	date 2019-12-04	rnd 6	type Blitz	result 1
		Opponent Mithi, D (Dumiso)				Opponent Mithi, D (Dumiso)

#	Games	Start				End
1	5	Tournament 2019 USSA Championships				Tournament JNW Club - Trinityhouse Little Falls Open 2020
		date 2019-12-06	rnd 9	type Standard	result 1	date 2020-03-14	rnd 4	type Standard	result 1
		Opponent Sajini, A (Athenkosi)				Opponent Bekker, GD (Gerhardus)
2	3	Tournament Ussa Chess Championships 2022				Tournament Ekurhuleni Chess Open 2025
		date 2022-12-09	rnd 9	type Standard	result 1	date 2025-03-15	rnd 3	type Standard	result 1
		Opponent Mafalo, K (Khutso)				Opponent Kale, A (Akhona)
3	2	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-04	rnd 8	type Blitz	result 1	date 2019-12-04	rnd 9	type Blitz	result 1
		Opponent Madiya, S (Sisekelo)				Opponent Lubambo, S (Skhulile)

#	Games	Start				End
1	5	Tournament 2019 USSA Championships				Tournament JNW Club - Trinityhouse Little Falls Open 2020
		date 2019-12-06	rnd 9	type Standard	result 1	date 2020-03-14	rnd 4	type Standard	result 1
		Opponent Sajini, A (Athenkosi)				Opponent Bekker, GD (Gerhardus)
2	3	Tournament Ussa Chess Championships 2022				Tournament Ekurhuleni Chess Open 2025
		date 2022-12-09	rnd 9	type Standard	result 1	date 2025-03-15	rnd 3	type Standard	result 1
		Opponent Mafalo, K (Khutso)				Opponent Kale, A (Akhona)
3	1	Tournament Ussa Chess Championships 2022				Tournament Ussa Chess Championships 2022
		date 2022-12-08	rnd 7	type Standard	result 1	date 2022-12-08	rnd 7	type Standard	result 1
		Opponent Sithole, B (Bongumusa Kevin)				Opponent Sithole, B (Bongumusa Kevin)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-04	rnd 8	type Blitz	result 1	date 2019-12-04	rnd 9	type Blitz	result 1
		Opponent Madiya, S (Sisekelo)				Opponent Lubambo, S (Skhulile)
2	1	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-04	rnd 6	type Blitz	result 1	date 2019-12-04	rnd 6	type Blitz	result 1
		Opponent Mithi, D (Dumiso)				Opponent Mithi, D (Dumiso)
3	1	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-04	rnd 4	type Blitz	result 1	date 2019-12-04	rnd 4	type Blitz	result 1
		Opponent Mafongosi, X (Xhanti)				Opponent Mafongosi, X (Xhanti)

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	Hastie ,SEH (Sachin)	2	0.5	-212.5	1	0	-425	0	0	0	1	0.5	0
1	Hastie ,SEH (Sachin)	2	1605.8	1393.3	1	1555.6	1180.8	0	0	0	1	1582.8	1605.8
2	Allison ,LM (Liam Mark)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Allison ,LM (Liam Mark)	1	1467	1467	1	1464.5	1467	0	0	0	0	0	0
3	Ambrose ,I (Isabella)	1	1	425	1	1	425	0	0	0	0	0	0
3	Ambrose ,I (Isabella)	1	1534	1959	1	1527.4	1959	0	0	0	0	0	0
4	Mathe ,S (Sibusiso)	1	1	425	1	1	425	0	0	0	0	0	0
4	Mathe ,S (Sibusiso)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Tebogo ,B (Blessings Makofane)	1	1	425	1	1	425	0	0	0	0	0	0
5	Tebogo ,B (Blessings Makofane)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Sithole ,B (Bongumusa Kevin)	1	1	425	1	1	425	0	0	0	0	0	0
6	Sithole ,B (Bongumusa Kevin)	1	1242	1667	1	1246.4	1667	0	0	0	0	0	0
7	Van Der Lingen ,WR (Waldi)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Van Der Lingen ,WR (Waldi)	1	1510.8	1510.8	1	1513.1	1510.8	0	0	0	0	0	0
8	Ndlovu ,S (Siboniso)	1	1	425	1	1	425	0	0	0	0	0	0
8	Ndlovu ,S (Siboniso)	1	1189.2	1614.2	1	1200	1614.2	0	0	0	0	0	0
9	Leseyane ,O (Obakeng)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Leseyane ,O (Obakeng)	1	1569.1	1144.1	1	1566.5	1144.1	0	0	0	0	0	0
10	De Villiers ,AM (Ammen Mohammed)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	De Villiers ,AM (Ammen Mohammed)	1	1256	1256	1	1273.6	1256	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

Witbooi, JB (Jan Bonakele)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms