Chess South Africa Ratings Database

PLAYER PAGE

Personal

Booi, J (Junior)

Chess SA id

1090152647

FIDE id

Date of birth

2009-06-16 (U18)

Gender

Male

Region

Sarah Baartman (ESB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-06-21

Personal details last changed

1900-01-01

Junior GPX Games

29.5

Junior GPX Points

1257.4

Item	Main	Standard	Rapid	Blitz
Rating	1315	1311.3	1283.3	1200
Raw rating	1315	1311.3	1283.3	1200
Weighted rating	1287.3	1262.4	1271.9	1200
Weighted performance	1221.1	1246.4	1130.9	0
Floor	836	811.3	783.3	700
K-factor	36	36	36	36
Min/Max rating change allowed	140.7	141.5	147.3	165.8
Highest rating	1336 2025-03-01	1311.3 2025-06-01	1283.3 2025-08-01	1200 2018-10-01
Highest raw rating	1336 2025-03-01	1311.3 2025-06-01	1283.3 2025-08-01	1200 2024-03-01
Highest weighted rating	1277.4 2025-08-01	1249.5 2025-08-01	1267.2 2025-08-01	1200 2018-10-01
Highest weighted performance	1336 2025-04-01	1305.4 2024-07-01	1283.1 2024-08-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1315	1311.3	1283.3	1200
Analysis
Rating	1315	1311.3	1283.3	1200
Raw rating	1315	1311.3	1283.3	1200
Weighted rating	1287.3	1262.4	1271.9
Weighted performance	1221.1	1246.4	1130.9
K-factor	36	36	36	36
Floor	836	811.3	783.3	700
Max/Min rating change allowed	140.7	141.5	147.3	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	1315	1311.3	1283.3	1200
New weighted rating	1291.7	1268.3	1274	1200
New weighted performance	1220.7	1246	1130.5	0
Temp new rating	1315	1311.3	1283.3	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1315	1311.3	1283.3	1200
New K-factor	36	36	36	36
New floor	836	811.3	783.3	700

Item	Main	Standard	Rapid
	0	0	0
	32	27	5
	25	15	10
	17	0	17
	0	0	0
	0	0	0
History	74	42	32

Games since
	Main 57	Standard 42		Rapid 15		Blitz 0
Gender	Male
Age group	U18
Region	Sarah Baartman (ESB)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	3025		404		107
Male	2400		341		90
U18	462		61		14
U18 Male	387		59		13
Standard
	RSA		Province		Region
Overall	2950		404		102
Male	2328		336		85
U18	476		67		14
U18 Male	401		64		13
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
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	32	19.5	60.94	93	1239	1332
Standard	27	16.5	61.11	94.4	1246.3	1340.8
Rapid	5	3	60	85	1199.3	1284.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	74	42	56.76	57.4	1237.2	1294.6
Standard	42	23.5	55.95	50.6	1254	1304.6
Rapid	32	18.5	57.81	66.4	1215.1	1281.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1315	1311.3	1283.3	1200
2025-09-01	1315	1311.3	1283.3	1200
2025-08-01	1315	1311.3	1283.3	1200
2025-07-01	1318.3	1311.3	1281.2	1200
2025-06-01	1318.3	1311.3	1281.2	1200
2025-05-01	1300.9	1289.1	1281.2	1200
2025-04-01	1316.1	1305.4	1281.2	1200
2025-03-01	1336	1286.5	1281.2	1200
2025-02-01	1284.3	1224.1	1281.2	1200
2025-01-01	1284.3	1224.1	1281.2	1200
2024-12-01	1284.3	1224.1	1281.2	1200
2024-11-01	1284.3	1224.1	1281.2	1200
2024-10-01	1284.3	1224.1	1281.2	1200
2024-09-01	1284.3	1224.1	1281.2	1200
2024-08-01	1269.8	1224.1	1264.6	1200
2024-07-01	1180.4	1169	1219.6	1200
2024-06-01	1186.8	1176.6	1219.6	1200
2024-08-01	1186.8	1176.6	1219.6	1200
2024-04-01	1186.8	1176.6	1219.6	1200
2024-03-01	1200.7	1200	1219.6	1200
2024-02-01	1200.7	1200	1219.6	1200
2024-01-01	1200.7	1200	1219.6	1200
2023-12-01	1200.7	1200	1219.6	1200
2023-11-01	1200.7	1200	1219.6	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	Port Alfred Chess Tournament 2025 (A)	2025-06-21	2025-06-21	Rapid	Sarah Baartman (ESB)	5	5	3	Yes	Analysis
2	SBDCA Closed 2025 (U18 Boys)	2025-05-10	2025-05-10	Standard	Sarah Baartman (ESB)	6	5	3	Yes	Analysis
3	SBDCU Trial 9 2025 (U18)	2025-04-26	2025-04-26	Standard	Sarah Baartman (ESB)	5	5	2.5	Yes	Analysis
4	SBDCU Trial 6 2025 (U18)	2025-03-15	2025-03-15	Standard	Sarah Baartman (ESB)	5	5	3	Yes	Analysis
5	Rhodes Open 2025 (B)	2025-03-21	2025-03-22	Standard	Sarah Baartman (ESB)	7	7	4	Yes	Analysis
6	SBDCU Trials 5 Makhanda Leg 2025 (U18)	2025-02-22	2025-02-22	Standard	Sarah Baartman (ESB)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Port Alfred Chess Tournament 2025 (A)	2025-06-21	2025-06-21	Rapid	Sarah Baartman (ESB)	5	5	3	Yes	Analysis
2	SBDCA Closed 2025 (U18 Boys)	2025-05-10	2025-05-10	Standard	Sarah Baartman (ESB)	6	5	3	Yes	Analysis
3	SBDCU Trial 9 2025 (U18)	2025-04-26	2025-04-26	Standard	Sarah Baartman (ESB)	5	5	2.5	Yes	Analysis
4	SBDCU Trial 6 2025 (U18)	2025-03-15	2025-03-15	Standard	Sarah Baartman (ESB)	5	5	3	Yes	Analysis
5	Rhodes Open 2025 (B)	2025-03-21	2025-03-22	Standard	Sarah Baartman (ESB)	7	7	4	Yes	Analysis
6	SBDCU Trials 5 Makhanda Leg 2025 (U18)	2025-02-22	2025-02-22	Standard	Sarah Baartman (ESB)	5	5	4	Yes	Analysis
7	Sarah Baartman District Schools Trials 2024 (U15 Boys)	2024-08-03	2024-08-03	Rapid	Sarah Baartman (ESB)	5	5	3	Yes	Analysis
8	SBDCU Closed Trials 2024 (U16 Boys)	2024-07-27	2024-07-27	Standard	Sarah Baartman (ESB)	5	5	3	Yes	Analysis
9	Makhanda Schools Championship 2024 (A Boys)	2024-07-20	2024-07-20	Rapid	Sarah Baartman (ESB)	5	5	4	Yes	Analysis
10	SBDCU Trial 3 2024 (U16)	2024-06-01	2024-06-01	Standard	Sarah Baartman (ESB)	5	5	2	Yes	Analysis
11	SBDCU Trial 2 2024 (U16)	2024-03-23	2024-03-23	Standard	Sarah Baartman (ESB)	5	5	2	Yes	Analysis
12	Makhanda Schools Chess Championship 2023 (B)	2023-09-30	2023-09-30	Rapid	Sarah Baartman (ESB)	6	4	3	Yes	Analysis
13	Makhanda Youth Day Chess Tournament 2023 (B)	2023-06-17	2023-06-17	Rapid	Sarah Baartman (ESB)	6	6	3	Yes	Analysis
14	Makhanda Schools Chess Tournament 2023 (B)	2023-03-25	2023-03-25	Rapid	Sarah Baartman (ESB)	7	7	2.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament SBDCU Closed Trials 2024				Tournament Sarah Baartman District Schools Trials 2024
		date 2024-07-27	rnd 4	type Standard	result 1	date 2024-08-03	rnd 3	type Rapid	result 1
		Opponent Nkolongo, O (Okuhle)				Opponent Dywili, A (Alime)
2	5	Tournament Makhanda Schools Championship 2024				Tournament SBDCU Closed Trials 2024
		date 2024-07-20	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 1	type Standard	result 1
		Opponent Dassah, E (Ezra)				Opponent Meth, G (Garyian)
3	4	Tournament SBDCU Trial 9 2025				Tournament SBDCA Closed 2025
		date 2025-04-26	rnd 5	type Standard	result 0.5	date 2025-05-10	rnd 4	type Standard	result 1
		Opponent Grobbelaar, D (Devan)				Opponent Theunissen, A (Andrew)

#	Games	Start				End
1	4	Tournament SBDCU Trial 9 2025				Tournament SBDCA Closed 2025
		date 2025-04-26	rnd 5	type Standard	result 0.5	date 2025-05-10	rnd 4	type Standard	result 1
		Opponent Grobbelaar, D (Devan)				Opponent Theunissen, A (Andrew)
2	4	Tournament Rhodes Open 2025				Tournament SBDCU Trial 9 2025
		date 2025-03-22	rnd 6	type Standard	result 1	date 2025-04-26	rnd 2	type Standard	result 1
		Opponent Maile, S (Seipati)				Opponent Gosha, P (Patson)
3	4	Tournament SBDCU Trials 5 Makhanda Leg 2025				Tournament SBDCU Trial 6 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-03-15	rnd 2	type Standard	result 1
		Opponent Wayi, A (Amandla)				Opponent Mkele, B (Bukulani)

#	Games	Start				End
1	7	Tournament Makhanda Schools Championship 2024				Tournament Sarah Baartman District Schools Trials 2024
		date 2024-07-20	rnd 2	type Rapid	result 1	date 2024-08-03	rnd 3	type Rapid	result 1
		Opponent Dassah, E (Ezra)				Opponent Dywili, A (Alime)
2	3	Tournament Makhanda Schools Chess Championship 2023				Tournament Makhanda Schools Chess Championship 2023
		date 2023-09-30	rnd 2	type Rapid	result 1	date 2023-09-30	rnd 4	type Rapid	result 1
		Opponent Komfana, A (Athenkosi)				Opponent Kenene, A (Azomila)
3	2	Tournament Makhanda Youth Day Chess Tournament 2023				Tournament Makhanda Youth Day Chess Tournament 2023
		date 2023-06-17	rnd 1	type Rapid	result 1	date 2023-06-17	rnd 2	type Rapid	result 1
		Opponent Ndjadayi, I (Inganathi)				Opponent Dondashe, I (Iyolakha)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament SBDCU Closed Trials 2024				Tournament Sarah Baartman District Schools Trials 2024
		date 2024-07-27	rnd 4	type Standard	result 1	date 2024-08-03	rnd 3	type Rapid	result 1
		Opponent Nkolongo, O (Okuhle)				Opponent Dywili, A (Alime)
2	5	Tournament Makhanda Schools Championship 2024				Tournament SBDCU Closed Trials 2024
		date 2024-07-20	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 1	type Standard	result 1
		Opponent Dassah, E (Ezra)				Opponent Meth, G (Garyian)
3	4	Tournament Rhodes Open 2025				Tournament SBDCU Trial 9 2025
		date 2025-03-22	rnd 6	type Standard	result 1	date 2025-04-26	rnd 2	type Standard	result 1
		Opponent Maile, S (Seipati)				Opponent Gosha, P (Patson)

#	Games	Start				End
1	4	Tournament Rhodes Open 2025				Tournament SBDCU Trial 9 2025
		date 2025-03-22	rnd 6	type Standard	result 1	date 2025-04-26	rnd 2	type Standard	result 1
		Opponent Maile, S (Seipati)				Opponent Gosha, P (Patson)
2	4	Tournament SBDCU Trials 5 Makhanda Leg 2025				Tournament SBDCU Trial 6 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-03-15	rnd 2	type Standard	result 1
		Opponent Wayi, A (Amandla)				Opponent Mkele, B (Bukulani)
3	4	Tournament SBDCU Closed Trials 2024				Tournament SBDCU Trials 5 Makhanda Leg 2025
		date 2024-07-27	rnd 4	type Standard	result 1	date 2025-02-22	rnd 2	type Standard	result 1
		Opponent Nkolongo, O (Okuhle)				Opponent Zabo, S (Sonwabiso)

#	Games	Start				End
1	7	Tournament Makhanda Schools Championship 2024				Tournament Sarah Baartman District Schools Trials 2024
		date 2024-07-20	rnd 2	type Rapid	result 1	date 2024-08-03	rnd 3	type Rapid	result 1
		Opponent Dassah, E (Ezra)				Opponent Dywili, A (Alime)
2	3	Tournament Makhanda Schools Chess Championship 2023				Tournament Makhanda Schools Chess Championship 2023
		date 2023-09-30	rnd 2	type Rapid	result 1	date 2023-09-30	rnd 4	type Rapid	result 1
		Opponent Komfana, A (Athenkosi)				Opponent Kenene, A (Azomila)
3	2	Tournament Makhanda Youth Day Chess Tournament 2023				Tournament Makhanda Youth Day Chess Tournament 2023
		date 2023-06-17	rnd 1	type Rapid	result 1	date 2023-06-17	rnd 2	type Rapid	result 1
		Opponent Ndjadayi, I (Inganathi)				Opponent Dondashe, I (Iyolakha)

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	Wayi ,A (Amandla)	5	2	-85	4	1	-212.5	1	1	425	0	0	0
1	Wayi ,A (Amandla)	5	1278.5	1193.5	4	1274.5	1066	1	1214	1703.5	0	0	0
2	Gosha ,P (Patson)	3	3	425	3	3	425	0	0	0	0	0	0
2	Gosha ,P (Patson)	3	1205	1630	3	1212.6	1630	0	0	0	0	0	0
3	Bain ,C (Caden)	2	1	0	2	1	0	0	0	0	0	0	0
3	Bain ,C (Caden)	2	1236.8	1236.8	2	1202.6	1236.8	0	0	0	0	0	0
4	Theunissen ,A (Andrew)	2	1	0	2	1	0	0	0	0	0	0	0
4	Theunissen ,A (Andrew)	2	1459.9	1459.9	2	1435.3	1459.9	0	0	0	0	0	0
5	Ngethu ,M (Mivuyo)	2	1	0	2	1	0	0	0	0	0	0	0
5	Ngethu ,M (Mivuyo)	2	1281.8	1281.8	2	1271.2	1281.8	0	0	0	0	0	0
6	Papu ,B (Bunakho)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Papu ,B (Bunakho)	2	1392.7	967.7	2	1379	967.7	0	0	0	0	0	0
7	Zabo ,S (Sonwabiso)	2	1	0	2	1	0	0	0	0	0	0	0
7	Zabo ,S (Sonwabiso)	2	1231.6	1231.6	2	1230.4	1231.6	0	0	0	0	0	0
8	Nkolongo ,O (Okuhle)	2	1	0	1	1	425	1	0	-425	0	0	0
8	Nkolongo ,O (Okuhle)	2	1276.6	1276.6	1	1270.5	1701.6	1	1299.4	851.6	0	0	0
9	Ngxande ,B (Banathi)	2	1	0	0	0	0	2	1	0	0	0	0
9	Ngxande ,B (Banathi)	2	1214.5	1214.5	0	0	0	2	1230.8	1214.5	0	0	0
10	Maqam ,A (Asandiswa)	1	1	425	1	1	425	0	0	0	0	0	0
10	Maqam ,A (Asandiswa)	1	1154.5	1579.5	1	1146.8	1579.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Booi, J (Junior)

Ratings

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Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms