Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bothma, I (Isabella)

Chess SA id

205069709

FIDE id

Date of birth

2005-07-21 (Adult)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-06-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1156.1	1140.2	669	576.2
Raw rating	1156.1	1140.2	669	576.2
Weighted rating	1156.1	1140.2	669	576.2
Weighted performance	215.8	211.9	0	0
Floor	696.9	695	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	176.5	180.6	353.3	403.3
Highest rating	1209.4 2019-04-01	1207.9 2018-08-01	1200 2018-01-01	1200 2024-02-01
Highest raw rating	1196.9 2019-05-01	1195 2018-09-01	669 2024-02-01	576.2 2024-02-01
Highest weighted rating	1196.9 2024-11-01	1195 2024-11-01	669 2024-11-01	576.2 2024-11-01
Highest weighted performance	1209.4 2019-04-01	1207.9 2018-08-01	1200 2018-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1156.1	1140.2	669	576.2
Analysis
Rating	1156.1	1140.2	669	576.2
Raw rating	1156.1	1140.2	669	576.2
Weighted rating	1156.1	1140.2	669
Weighted performance	215.8	211.9	0
K-factor	40	40	40	40
Floor	696.9	695	500	500
Max/Min rating change allowed	176.5	180.6	353.3	403.3
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	1156.1	1140.2	669	576.2
New weighted rating	1156.1	1140.2	669	576.2
New weighted performance	209.3	205.3	0	0
Temp new rating	1156.1	1140.2	669	576.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1156.1	1140.2	669	576.2
New K-factor	40	40	40	40
New floor	696.9	695	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	188	177	11

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	120	63.5	52.92	24.8	1009.8	1034.6
Standard	115	60	52.17	18.5	1011.8	1030.3
Rapid	5	3.5	70	170	964.2	1134.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1156.1	1140.2	669	576.2
2025-09-30	1156.1	1140.2	669	576.2
2025-09-01	1156.1	1140.2	669	576.2
2025-08-01	1156.1	1140.2	669	576.2
2025-07-01	1156.1	1140.2	669	576.2
2025-06-01	1156.1	1140.2	669	576.2
2025-05-01	1156.1	1140.2	669	576.2
2025-04-01	1156.1	1140.2	669	576.2
2025-03-01	1156.1	1140.2	669	576.2
2025-02-01	1156.1	1140.2	669	576.2
2025-01-01	1156.1	1140.2	669	576.2
2024-12-01	1156.1	1140.2	669	576.2
2024-11-01	1156.1	1140.2	669	576.2
2024-10-01	1156.1	1140.2	669	576.2
2024-09-01	1156.1	1140.2	669	576.2
2024-08-01	1156.1	1140.2	669	576.2
2024-07-01	1156.1	1140.2	669	576.2
2024-09-01	1156.1	1140.2	669	576.2
2024-05-01	1156.1	1140.2	669	576.2
2024-04-01	1156.1	1140.2	669	576.2
2024-03-01	1156.1	1140.2	669	576.2
2024-02-01	1156.1	1140.2	669	576.2
2024-01-01	1156.1	1140.2	669	576.2
2023-12-01	1156.1	1140.2	669	576.2

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JNW Club - Hoerskool Linden 2019 (C)	2019-06-15	2019-06-15	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
2	JNW Club - Bryanston Open 2 2019 (C)	2019-05-11	2019-05-11	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
3	Gauteng D9 Finals 2019 (U15 Girls)	2019-05-18	2019-05-18	Rapid	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
4	JNW Club - Charterhouse Open 2019 (C)	2019-04-13	2019-04-13	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
5	JNW Club - Trinityhouse Randpark Ridge Open 2019 (C)	2019-03-09	2019-03-09	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
6	JNW Club - Trinityhouse Little Falls Open 2019 (C)	2019-02-23	2019-02-23	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
7	JNW Club - Bryanston Open 1 2019 (B)	2019-01-26	2019-01-26	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
8	South African Junior Team Championships 2018 (U14B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis
9	Inter Region GE vs JHB Metro 2018 (U14B)	2018-10-06	2018-10-06	Standard	Ekurhuleni (GE)	5	4	0.5	Yes	Analysis
10	JNW Club - Muldersdrif Open 2018 (C)	2018-08-18	2018-08-18	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
11	JNW Club - Maragon Open 2018 (C)	2018-08-04	2018-08-04	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
12	JHB Metro Junior Closed 2018 (U14)	2018-07-28	2018-07-29	Standard	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis
13	British International Prep/Chessnuts 2018 (U14+U16)	2018-06-23	2018-06-23	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
14	JNW Club - Linden Open 2018 (C)	2018-04-14	2018-04-14	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
15	Fonties Challenge 2018 (U13+U15)	2018-04-21	2018-04-21	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
16	JNW Club - Trinityhouse Randpark Ridge Open 2018 (C)	2018-03-24	2018-03-24	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
17	JNW Club - Northriding College Open 2018 (B)	2018-03-09	2018-03-10	Standard	Johannesburg Metro (GJM)	6	6	3.5	Yes	Analysis
18	JNW Club - Trinityhouse Little Falls Open 2018 (D)	2018-02-16	2018-02-17	Standard	Johannesburg Metro (GJM)	6	6	4.5	Yes	Analysis
19	Chessnuts - Kickoff Open 2018 (D)	2018-02-09	2018-02-10	Standard	Johannesburg Metro (GJM)	6	6	4.5	Yes	Analysis
20	JNW Club - Bryanston Open 2018 (D)	2018-01-26	2018-01-27	Standard	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis
21	South African Junior Wildcard Championships 2017 (U14 Girls)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis
22	South African Junior Team Championships 2017 (U14D)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis

#	Games	Start				End
1	5	Tournament JNW Club - Maragon Open 2018				Tournament JNW Club - Muldersdrif Open 2018
		date 2018-08-04	rnd 2	type Standard	result 0.5	date 2018-08-18	rnd 1	type Standard	result 1
		Opponent Kata, J (Jonathan)				Opponent Yang, R (Rui)
2	5	Tournament JNW Club - Trinityhouse Little Falls Open 2018				Tournament JNW Club - Trinityhouse Little Falls Open 2018
		date 2018-02-16	rnd 2	type Standard	result 1	date 2018-02-17	rnd 6	type Standard	result 1
		Opponent Gordon, E (Emma)				Opponent Du Toit, T (Tano)
3	5	Tournament JNW Club - Bryanston Open 2018				Tournament Chessnuts - Kickoff Open 2018
		date 2018-01-27	rnd 6	type Standard	result 1	date 2018-02-10	rnd 4	type Standard	result 1
		Opponent Staples, M (Michael)				Opponent Scullard, S (Sienne)

#	Games	Start				End
1	5	Tournament JNW Club - Maragon Open 2018				Tournament JNW Club - Muldersdrif Open 2018
		date 2018-08-04	rnd 2	type Standard	result 0.5	date 2018-08-18	rnd 1	type Standard	result 1
		Opponent Kata, J (Jonathan)				Opponent Yang, R (Rui)
2	5	Tournament JNW Club - Trinityhouse Little Falls Open 2018				Tournament JNW Club - Trinityhouse Little Falls Open 2018
		date 2018-02-16	rnd 2	type Standard	result 1	date 2018-02-17	rnd 6	type Standard	result 1
		Opponent Gordon, E (Emma)				Opponent Du Toit, T (Tano)
3	5	Tournament JNW Club - Bryanston Open 2018				Tournament Chessnuts - Kickoff Open 2018
		date 2018-01-27	rnd 6	type Standard	result 1	date 2018-02-10	rnd 4	type Standard	result 1
		Opponent Staples, M (Michael)				Opponent Scullard, S (Sienne)

#	Games	Start				End
1	2	Tournament Gauteng D9 Finals 2019				Tournament Gauteng D9 Finals 2019
		date 2019-05-18	rnd 4	type Rapid	result 0.5	date 2019-05-18	rnd 5	type Rapid	result 1
		Opponent Pereira, I (Isabella)				Opponent Gani, Y (Yasmeen)
2	2	Tournament Gauteng D9 Finals 2019				Tournament Gauteng D9 Finals 2019
		date 2019-05-18	rnd 1	type Rapid	result 1	date 2019-05-18	rnd 2	type Rapid	result 1
		Opponent Maime, M (Mankgara)				Opponent Prajapati, A (Aastha)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament JNW Club - Maragon Open 2018				Tournament JNW Club - Muldersdrif Open 2018
		date 2018-08-04	rnd 3	type Standard	result 1	date 2018-08-18	rnd 1	type Standard	result 1
		Opponent Fauconier, C (Caley)				Opponent Yang, R (Rui)
2	3	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 1	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Tshikosi, M (Mashudu)				Opponent Smith, JD (Jayden)
3	3	Tournament JHB Metro Junior Closed 2018				Tournament JHB Metro Junior Closed 2018
		date 2018-07-29	rnd 4	type Standard	result 1	date 2018-07-29	rnd 6	type Standard	result 1
		Opponent Mbongwa, T (Thando)				Opponent Van Graan, N (Nelius)

#	Games	Start				End
1	4	Tournament JNW Club - Maragon Open 2018				Tournament JNW Club - Muldersdrif Open 2018
		date 2018-08-04	rnd 3	type Standard	result 1	date 2018-08-18	rnd 1	type Standard	result 1
		Opponent Fauconier, C (Caley)				Opponent Yang, R (Rui)
2	3	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 1	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Tshikosi, M (Mashudu)				Opponent Smith, JD (Jayden)
3	3	Tournament JHB Metro Junior Closed 2018				Tournament JHB Metro Junior Closed 2018
		date 2018-07-29	rnd 4	type Standard	result 1	date 2018-07-29	rnd 6	type Standard	result 1
		Opponent Mbongwa, T (Thando)				Opponent Van Graan, N (Nelius)

#	Games	Start				End
1	2	Tournament Gauteng D9 Finals 2019				Tournament Gauteng D9 Finals 2019
		date 2019-05-18	rnd 1	type Rapid	result 1	date 2019-05-18	rnd 2	type Rapid	result 1
		Opponent Maime, M (Mankgara)				Opponent Prajapati, A (Aastha)
2	1	Tournament Gauteng D9 Finals 2019				Tournament Gauteng D9 Finals 2019
		date 2019-05-18	rnd 5	type Rapid	result 1	date 2019-05-18	rnd 5	type Rapid	result 1
		Opponent Gani, Y (Yasmeen)				Opponent Gani, Y (Yasmeen)

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	Scullard ,S (Sienne)	3	3	425	3	3	425	0	0	0	0	0	0
1	Scullard ,S (Sienne)	3	1072.4	1497.4	3	1058.2	1497.4	0	0	0	0	0	0
2	Moonsammy ,E (Ethan)	2	1	0	2	1	0	0	0	0	0	0	0
2	Moonsammy ,E (Ethan)	2	1302.8	1302.8	2	1292.1	1302.8	0	0	0	0	0	0
3	Felix ,H (Harrison)	2	1	0	2	1	0	0	0	0	0	0	0
3	Felix ,H (Harrison)	2	933.2	933.2	2	934.8	933.2	0	0	0	0	0	0
4	Flockhart ,E (Elijah)	2	1	0	2	1	0	0	0	0	0	0	0
4	Flockhart ,E (Elijah)	2	1127.3	1127.3	2	1126.8	1127.3	0	0	0	0	0	0
5	Tarafdar ,S (Shamama)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
5	Tarafdar ,S (Shamama)	2	1022.6	1235.1	2	1021.3	1235.1	0	0	0	0	0	0
6	Steyn ,T (Tjaart)	2	2	425	2	2	425	0	0	0	0	0	0
6	Steyn ,T (Tjaart)	2	1052.1	1477.1	2	1052.4	1477.1	0	0	0	0	0	0
7	Pillay ,M (Mikhael)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Pillay ,M (Mikhael)	2	997.3	572.3	2	989.8	572.3	0	0	0	0	0	0
8	De Jager ,K (Karli)	2	2	425	2	2	425	0	0	0	0	0	0
8	De Jager ,K (Karli)	2	547.4	972.4	2	553.6	972.4	0	0	0	0	0	0
9	Naidoo ,K (Kirthan)	2	1	0	2	1	0	0	0	0	0	0	0
9	Naidoo ,K (Kirthan)	2	1278.1	1278.1	2	1271.1	1278.1	0	0	0	0	0	0
10	Van Graan ,N (Nelius)	2	2	425	2	2	425	0	0	0	0	0	0
10	Van Graan ,N (Nelius)	2	831.2	1256.2	2	837.4	1256.2	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

Bothma, I (Isabella)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms