Chess South Africa Ratings Database

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Personal

Booi, O (Ocean)

Chess SA id

1980102793

FIDE id

Date of birth

1998-04-25 (Adult)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-04-12

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1430.1	1373.1	1376.2	1228.8
Raw rating	1430.1	1373.1	1376.2	1228.8
Weighted rating	1424.2	1373.1	1367.9	1228.8
Weighted performance	1178.1	622.6	1180.7	0
Floor	930.1	914.7	876.2	728.8
K-factor	32	32	36	36
Min/Max rating change allowed	119.5	129.6	129	159.1
Highest rating	1430.1 2025-05-05	1425.5 2020-03-01	1376.2 2025-05-05	1492.8 2022-07-01
Highest raw rating	1430.1 2025-05-05	1414.7 2021-09-01	1376.2 2025-05-05	1228.8 2024-02-01
Highest weighted rating	1422.7 2025-08-01	1414.7 2022-08-01	1365.4 2025-08-01	1228.8 2024-07-01
Highest weighted performance	1418.4 2020-03-01	1425.5 2020-03-01	1359.7 2020-01-01	1492.8 2022-07-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1430.1	1373.1	1376.2	1228.8
Analysis
Rating	1430.1	1373.1	1376.2	1228.8
Raw rating	1430.1	1373.1	1376.2	1228.8
Weighted rating	1424.2	1373.1	1367.9
Weighted performance	1178.1	622.6	1180.7
K-factor	32	32	36	36
Floor	930.1	914.7	876.2	728.8
Max/Min rating change allowed	119.5	129.6	129	159.1
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	1430.1	1373.1	1376.2	1228.8
New weighted rating	1424.8	1373.1	1368.9	1228.8
New weighted performance	1177.7	622.1	1180.3	0
Temp new rating	1430.1	1373.1	1376.2	1228.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1430.1	1373.1	1376.2	1228.8
New K-factor	32	32	36	36
New floor	930.1	914.7	876.2	728.8

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	7	0	7	0
	10	0	10	0
	11	0	11	0
	23	4	15	4
	15	15	0	0
History	150	98	48	4

Games since
	Main 17	Standard 0		Rapid 17		Blitz 0
Gender	Male
Age group	Adult
Region	Overberg (WOS)
Province	Western Cape (WC)
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	7	4.5	64.29	121.4	1370.7	1492.1
Standard	0	0	0	0	0	0
Rapid	7	4.5	64.29	121.4	1370.7	1492.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	105	67	63.81	117.4	1307.5	1424.9
Standard	53	35.5	66.98	144.3	1241.4	1385.7
Rapid	48	29.5	61.46	97.4	1359.3	1456.7
Blitz	4	2	50	0	1562.1	1562.1

Date	Main	Standard	Rapid	Blitz
2025-09-30	1430.1	1373.1	1376.2	1228.8
2025-09-01	1430.1	1373.1	1376.2	1228.8
2025-08-01	1430.1	1373.1	1376.2	1228.8
2025-07-01	1430.1	1373.1	1376.2	1228.8
2025-06-01	1430.1	1373.1	1376.2	1228.8
2025-05-01	1430.1	1373.1	1376.2	1228.8
2025-04-01	1418.8	1373.1	1358.3	1228.8
2025-03-01	1418.6	1373.1	1357.6	1228.8
2025-02-01	1418.3	1373.1	1356.8	1228.8
2025-01-01	1417.9	1373.1	1355.5	1228.8
2024-12-01	1417.9	1373.1	1355.5	1228.8
2024-11-01	1417.9	1373.1	1355.5	1228.8
2024-10-01	1417.9	1373.1	1355.5	1228.8
2024-09-01	1423.4	1373.1	1374.2	1228.8
2024-08-01	1423.4	1373.1	1374.2	1228.8
2024-07-01	1423.4	1373.1	1374.2	1228.8
2024-06-01	1423.4	1373.1	1374.2	1228.8
2024-08-01	1423.4	1373.1	1374.2	1228.8
2024-04-01	1423.4	1373.1	1374.2	1228.8
2024-03-01	1423.4	1373.1	1374.2	1228.8
2024-02-01	1423.4	1373.1	1374.2	1228.8
2024-01-01	1409.6	1373.1	1326.7	1228.8
2023-12-01	1409.6	1373.1	1326.7	1228.8
2023-11-01	1409.6	1373.1	1326.7	1228.8

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	Hermanus Chess Club Open 2025 (Intermediate)	2025-04-12	2025-04-12	Rapid	Overberg (WOS)	7	7	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Hermanus Chess Club Open 2025 (Intermediate)	2025-04-12	2025-04-12	Rapid	Overberg (WOS)	7	7	4.5	Yes	Analysis
2	Kleinmond Chess Club Open 2024 (Championship)	2024-09-07	2024-09-07	Rapid	Overberg (WOS)	5	5	1.5	Yes	Analysis
3	Overberg Open Rapid 2024 (Open)	2024-01-27	2024-01-27	Rapid	Overberg (WOS)	5	5	2.5	Yes	Analysis
4	Hermanus Rapid 2023 (B)	2023-04-22	2023-04-22	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
5	Overberg Schools Open Tournament 2023 (Open)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
6	WCCA Rural Cup 2022 (Open)	2022-08-13	2022-08-14	Standard	Overberg (WOS)	5	4	0.5	Yes	Analysis
7	WCCA Rural Cup Blitz 2022	2022-07-12	2022-07-12	Blitz	Overberg (WOS)	5	4	2	Yes	Analysis
8	OCF Youth Day Tournament 2022 (A)	2022-06-18	2022-06-18	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
9	The Hermanus Open 2022 (Open)	2022-05-14	2022-05-14	Rapid	Overberg (WOS)	6	5	3	Yes	Analysis
10	OCF Open 2022 (Open)	2022-04-09	2022-04-09	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
11	OCF Club Champs 2021 (Seniors)	2021-06-05	2021-08-14	Standard	Overberg (WOS)	10	10	7.5	Yes	Analysis
12	Kleinmond Open 2021 (U18+Open)	2021-04-17	2021-04-17	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
13	OCF Chess Tournament 3 2020 (Open)	2020-03-07	2020-03-07	Standard	Overberg (WOS)	5	5	4.5	Yes	Analysis
14	OCF Chess Tournament 2 2020 (Open)	2020-02-01	2020-02-01	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
15	OCF Open 2020 (Open)	2020-01-25	2020-01-25	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
16	2019 Western Cape Club Championship (A+B)	2019-10-25	2019-10-27	Standard	Overberg (WOS)	6	5	4	Yes	Analysis
17	SuperHero Open 2019 (Open)	2019-06-01	2019-06-01	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
18	Overberg Club Champs 2019 (A)	2019-06-15	2019-06-15	Standard	Overberg (WOS)	5	4	3	Yes	Analysis
19	Trial 2 Teddy/Toy Tournament 2019 (Open)	2019-04-06	2019-04-06	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
20	Overberg 3rd Trial 2018 (U18+Open)	2018-05-05	2018-05-05	Standard	Overberg (WOS)	5	5	3	Yes	Analysis

#	Games	Start				End
1	9	Tournament Trial 2 Teddy/Toy Tournament 2019				Tournament Overberg Club Champs 2019
		date 2019-04-06	rnd 3	type Standard	result 1	date 2019-06-15	rnd 1	type Standard	result 1
		Opponent Meyer, P (Peter)				Opponent Brown, M (Mervin)
2	7	Tournament OCF Chess Tournament 2 2020				Tournament Kleinmond Open 2021
		date 2020-02-01	rnd 5	type Standard	result 1	date 2021-04-17	rnd 1	type Standard	result 1
		Opponent Fortuin, J (Jemaine)				Opponent Wynand, P (Phillip)
3	6	Tournament Overberg Club Champs 2019				Tournament 2019 Western Cape Club Championship
		date 2019-06-15	rnd 3	type Standard	result 1	date 2019-10-27	rnd 5	type Standard	result 1
		Opponent Windvogel, R (Rasheed)				Opponent Juta, P (Paulincia)

#	Games	Start				End
1	9	Tournament Trial 2 Teddy/Toy Tournament 2019				Tournament Overberg Club Champs 2019
		date 2019-04-06	rnd 3	type Standard	result 1	date 2019-06-15	rnd 1	type Standard	result 1
		Opponent Meyer, P (Peter)				Opponent Brown, M (Mervin)
2	7	Tournament OCF Chess Tournament 2 2020				Tournament Kleinmond Open 2021
		date 2020-02-01	rnd 5	type Standard	result 1	date 2021-04-17	rnd 1	type Standard	result 1
		Opponent Fortuin, J (Jemaine)				Opponent Wynand, P (Phillip)
3	6	Tournament Overberg Club Champs 2019				Tournament 2019 Western Cape Club Championship
		date 2019-06-15	rnd 3	type Standard	result 1	date 2019-10-27	rnd 5	type Standard	result 1
		Opponent Windvogel, R (Rasheed)				Opponent Juta, P (Paulincia)

#	Games	Start				End
1	5	Tournament Hermanus Rapid 2023				Tournament Overberg Open Rapid 2024
		date 2023-04-22	rnd 5	type Rapid	result 1	date 2024-01-27	rnd 3	type Rapid	result 0.5
		Opponent Smith, S (Shiloh)				Opponent Southey, AM (Andrew)
2	5	Tournament Overberg Schools Open Tournament 2023				Tournament Hermanus Rapid 2023
		date 2023-02-11	rnd 2	type Rapid	result 1	date 2023-04-22	rnd 1	type Rapid	result 1
		Opponent Oosthuizen, J (Jacques)				Opponent Ntontelo, K (Khazimla)
3	3	Tournament The Hermanus Open 2022				Tournament The Hermanus Open 2022
		date 2022-05-14	rnd 3	type Rapid	result 1	date 2022-05-14	rnd 5	type Rapid	result 1
		Opponent Du Plessis, C (Corne)				Opponent Mostert, R (Remi)

#	Games	Start				End
1	2	Tournament WCCA Rural Cup Blitz 2022				Tournament WCCA Rural Cup Blitz 2022
		date 2022-07-12	rnd 3	type Blitz	result 1	date 2022-07-12	rnd 4	type Blitz	result 1
		Opponent Brewis, S (Sienna)				Opponent Swanevelder, D (Dewald)

#	Games	Start				End
1	6	Tournament Overberg Club Champs 2019				Tournament 2019 Western Cape Club Championship
		date 2019-06-15	rnd 3	type Standard	result 1	date 2019-10-27	rnd 5	type Standard	result 1
		Opponent Windvogel, R (Rasheed)				Opponent Juta, P (Paulincia)
2	5	Tournament Overberg Schools Open Tournament 2023				Tournament Hermanus Rapid 2023
		date 2023-02-11	rnd 2	type Rapid	result 1	date 2023-04-22	rnd 1	type Rapid	result 1
		Opponent Oosthuizen, J (Jacques)				Opponent Ntontelo, K (Khazimla)
3	5	Tournament Trial 2 Teddy/Toy Tournament 2019				Tournament SuperHero Open 2019
		date 2019-04-06	rnd 3	type Standard	result 1	date 2019-06-01	rnd 2	type Standard	result 1
		Opponent Meyer, P (Peter)				Opponent Marais, C (Cobus)

#	Games	Start				End
1	6	Tournament Overberg Club Champs 2019				Tournament 2019 Western Cape Club Championship
		date 2019-06-15	rnd 3	type Standard	result 1	date 2019-10-27	rnd 5	type Standard	result 1
		Opponent Windvogel, R (Rasheed)				Opponent Juta, P (Paulincia)
2	5	Tournament Trial 2 Teddy/Toy Tournament 2019				Tournament SuperHero Open 2019
		date 2019-04-06	rnd 3	type Standard	result 1	date 2019-06-01	rnd 2	type Standard	result 1
		Opponent Meyer, P (Peter)				Opponent Marais, C (Cobus)
3	4	Tournament OCF Club Champs 2021				Tournament OCF Club Champs 2021
		date 2021-06-05	rnd 3	type Standard	result 1	date 2021-08-14	rnd 6	type Standard	result 1
		Opponent Simamkele, S (Sokhasie)				Opponent Joubert, A (Antonio)

#	Games	Start				End
1	5	Tournament Overberg Schools Open Tournament 2023				Tournament Hermanus Rapid 2023
		date 2023-02-11	rnd 2	type Rapid	result 1	date 2023-04-22	rnd 1	type Rapid	result 1
		Opponent Oosthuizen, J (Jacques)				Opponent Ntontelo, K (Khazimla)
2	4	Tournament Hermanus Rapid 2023				Tournament Overberg Open Rapid 2024
		date 2023-04-22	rnd 5	type Rapid	result 1	date 2024-01-27	rnd 2	type Rapid	result 1
		Opponent Smith, S (Shiloh)				Opponent Arnold, M (Michael)
3	3	Tournament The Hermanus Open 2022				Tournament The Hermanus Open 2022
		date 2022-05-14	rnd 3	type Rapid	result 1	date 2022-05-14	rnd 5	type Rapid	result 1
		Opponent Du Plessis, C (Corne)				Opponent Mostert, R (Remi)

#	Games	Start				End
1	2	Tournament WCCA Rural Cup Blitz 2022				Tournament WCCA Rural Cup Blitz 2022
		date 2022-07-12	rnd 3	type Blitz	result 1	date 2022-07-12	rnd 4	type Blitz	result 1
		Opponent Brewis, S (Sienna)				Opponent Swanevelder, D (Dewald)

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	Crookes ,J (Jonas)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
1	Crookes ,J (Jonas)	3	1350.6	1067.3	3	1339.9	1067.3	0	0	0	0	0	0
2	Windvogel ,R (Rasheed)	3	3	425	2	2	425	1	1	425	0	0	0
2	Windvogel ,R (Rasheed)	3	1190.6	1615.6	2	1202.2	1615.6	1	1240	1615.6	0	0	0
3	Higham ,E (Ethan)	3	1.5	0	1	0.5	0	2	1	0	0	0	0
3	Higham ,E (Ethan)	3	1418.3	1418.3	1	1317.4	1418.3	2	1254.1	1418.3	0	0	0
4	Brink ,M (Martin)	3	0	-425	1	0	-425	2	0	-425	0	0	0
4	Brink ,M (Martin)	3	1383.3	958.3	1	1374.2	958.3	2	1248.5	958.3	0	0	0
5	Esemene ,L (Lkechukwuka)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Esemene ,L (Lkechukwuka)	2	1262.4	837.4	2	1267.9	837.4	0	0	0	0	0	0
6	Meyer ,P (Peter)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
6	Meyer ,P (Peter)	2	1191.7	1404.2	2	1185.8	1404.2	0	0	0	0	0	0
7	Simamkele ,S (Sokhasie)	2	2	425	2	2	425	0	0	0	0	0	0
7	Simamkele ,S (Sokhasie)	2	1097.1	1522.1	2	1078.4	1522.1	0	0	0	0	0	0
8	Fortuin ,J (Jemaine)	2	2	425	2	2	425	0	0	0	0	0	0
8	Fortuin ,J (Jemaine)	2	1210.6	1635.6	2	1204.1	1635.6	0	0	0	0	0	0
9	Montgomery ,E (Elizabeth)	2	2	425	2	2	425	0	0	0	0	0	0
9	Montgomery ,E (Elizabeth)	2	1325.3	1750.3	2	1333.4	1750.3	0	0	0	0	0	0
10	Arends ,EJ (Earl Jarred)	2	2	425	1	1	425	1	1	425	0	0	0
10	Arends ,EJ (Earl Jarred)	2	1199	1624	1	1200	1624	1	1200	1624	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Booi, O (Ocean)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms