Chess South Africa Ratings Database

PLAYER PAGE

Personal

Exarchos, I (Isabella)

Chess SA id

2150136753

FIDE id

14371812

Date of birth

2015-11-13 (U12)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-12-20

Personal details last changed

2025-04-06

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1639.5	1644.7	1300.4	1200
Raw rating	1639.5	1644.7	1300.4	1200
Weighted rating	1502.6	1501.3	1300.4	1200
Weighted performance	1712.6	1718.5	0	0
Floor	1139.5	1144.7	800.4	700
K-factor	28	28	36	36
Min/Max rating change allowed	88.6	88	143.7	165.8
Highest rating	1639.5 2026-01-01	1644.7 2026-01-01	1633.1 2023-09-01	1200 2018-10-01
Highest raw rating	1639.5 2026-01-01	1644.7 2026-01-01	1300.4 2024-03-01	1200 2024-03-01
Highest weighted rating	1502.6 2026-01-01	1501.3 2026-01-01	1300.4 2025-08-01	1200 2018-10-01
Highest weighted performance	1712.6 2026-01-01	1718.5 2026-01-01	1633.1 2023-09-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	61.8	62.4	0	0
New rating	1701.3	1707.2	1300.4	1200
Analysis
Rating	1639.5	1644.7	1300.4	1200
Raw rating	1639.5	1644.7	1300.4	1200
Weighted rating	1502.6	1501.3	1300.4
Weighted performance	1712.6	1718.5	0
K-factor	28	28	36	36
Floor	1139.5	1144.7	800.4	700
Max/Min rating change allowed	88.6	88	143.7	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	1639.5	1644.7	1300.4	1200
New weighted rating	1515.1	1514.6	1300.4	1200
New weighted performance	1701.3	1707.2	0	0
Temp new rating	1701.3	1707.2	1300.4	1200
Temp new rating +/-	61.8	62.4	0	0
Final new rating +/-	61.8	62.4	0	0
New rating	1701.3	1707.2	1300.4	1200
New K-factor	28	28	36	36
New floor	1139.5	1144.7	800.4	700

Item	Main	Standard	Rapid
	0	0	0
	34	34	0
	78	78	0
	37	32	5
	53	53	0
	0	0	0
History	202	197	5

Games since
	Main 112	Standard 112		Rapid 0		Blitz 0
Gender	Female
Age group	U12
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	998		349		125
Female	109		42		15
U12	85		37		13
U12 Female	18		11		3
Standard
	RSA		Province		Region
Overall	899		342		117
Female	98		41		16
U12	76		34		11
U12 Female	17		11		3
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 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	34	22	64.71	125	1419.2	1544.2
Standard	34	22	64.71	125	1419.2	1544.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	202	121	59.9	84.2	1277.2	1361.3
Standard	197	116	58.88	75.5	1276.5	1352
Rapid	5	5	100	425	1301.7	1726.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1639.5	1644.7	1300.4	1200
2025-11-30	1536.9	1543	1300.4	1200
2025-11-01	1536.9	1543	1300.4	1200
2025-09-30	1536.9	1543	1300.4	1200
2025-09-01	1513.5	1515.5	1300.4	1200
2025-08-01	1513.5	1515.5	1300.4	1200
2025-07-01	1508.5	1510.2	1300.4	1200
2025-06-01	1508.5	1510.2	1300.4	1200
2025-05-01	1508.5	1510.2	1300.4	1200
2025-04-01	1514.9	1517	1300.4	1200
2025-03-01	1438.6	1431.9	1300.4	1200
2025-02-01	1424.1	1408.9	1300.4	1200
2025-01-01	1420.8	1408.9	1300.4	1200
2024-12-01	1392.2	1376.9	1300.4	1200
2024-11-01	1392.2	1376.9	1300.4	1200
2024-10-01	1460.3	1451.1	1300.4	1200
2024-09-01	1460.3	1451.1	1300.4	1200
2024-11-01	1460.3	1451.1	1300.4	1200
2024-07-01	1485.8	1485.3	1300.4	1200
2024-06-01	1582	1581.6	1300.4	1200
2024-05-01	1457.9	1452	1300.4	1200
2024-04-01	1457.9	1452	1300.4	1200
2024-03-01	1433.5	1399	1300.4	1200
2024-02-01	1433.5	1399	1300.4	1200

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	2025 Mzansi Individual Championships (U12 Girls)	2025-12-17	2025-12-20	Standard	Nelson Mandela Bay (ENM)	6	6	5.5	Yes	Analysis
2	2025 Mzansi Inter Provincial Team Championships (U12 Combined)	2025-12-15	2025-12-17	Standard	Nelson Mandela Bay (ENM)	6	6	6	Yes	Analysis
3	Gauteng Inter-Region at Emerald Resort 2025 (U12 Girls)	2025-12-06	2025-12-07	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
4	GoForChess Junior Chess Championships 2025 (U12)	2025-09-14	2025-09-14	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
5	JMC - Trinity Randpark Ridge 2025 (U12)	2025-07-26	2025-07-26	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
6	South African Junior Closed Chess Championships 2025 (U10 Girls)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	5	Yes	Analysis
7	JMC Crawford Ruimsig 2025 (C)	2025-03-01	2025-03-01	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
8	First Knights Juniors Chess Tournament 2025 (A+B)	2025-02-09	2025-02-09	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
9	JMC Kick Off 2025 (C)	2025-02-02	2025-02-02	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
10	Gauteng Inter-Region at UJ 2024 (U10 Open)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
11	Laerskool Doringkloof Primary Open Chess Tournament 2024 (B)	2024-10-19	2024-10-19	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
12	2024 Gauteng North Open Chess Tournament (B)	2024-10-05	2024-10-06	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
13	Chess Power House July Open 2024 (C)	2024-07-20	2024-07-20	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
14	2024 African Youth Chess Championship	2024-06-16	2024-06-22	Standard	Tshwane (GTP)	9	9	4.5	Yes	Analysis
15	Second Knight Riders Juniors Open Chess Tournament 2024 (C)	2024-06-08	2024-06-08	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
16	JMC Trinityhouse Little Falls 2024 (U10)	2024-06-02	2024-06-02	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
17	GoForChess Junior Chess Championships 2024 (Junior)	2024-05-19	2024-05-19	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis
18	South African Junior Closed Chess Championship 2024 (U10 Girls)	2024-04-27	2024-05-01	Standard	Ekurhuleni (GE)	9	9	6	Yes	Analysis
19	JMC Helpmekaar Kollege Tournament 2024 (U10)	2024-05-04	2024-05-04	Standard	Johannesburg Metro (GJM)	5	5	4.5	Yes	Analysis
20	1st Knights Open Tournament 2024 (U10)	2024-03-23	2024-03-23	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
21	JMC Unika School Tournament 2024 (U10)	2024-03-02	2024-03-02	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
22	2024 Gauteng Inter-Region Chess Championship (U10B)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
23	JMC Kick Off Tournament 2024 (U10)	2024-01-28	2024-01-28	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
24	Africawide Chess Championship 2023 (Development A)	2023-11-04	2023-11-04	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
25	ThinkChess Academy 2023 (B)	2023-09-09	2023-09-09	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
26	Chess Molecules Rapid 2023 (Grade 0-2)	2023-09-23	2023-09-23	Rapid	Ekurhuleni (GE)	5	5	5	Yes	Analysis
27	JMC Closed Aug 2023 (U10)	2023-08-04	2023-08-06	Standard	Johannesburg Metro (GJM)	6	6	2	Yes	Analysis
28	JMC - The Higher Ground Restaurant 2nd Blitz Event 2023	2023-07-30	2023-07-30	Blitz	Johannesburg Metro (GJM)	7	0	0	No	Analysis
29	2023 South African Junior Closed Chess Championships (U8 Girls)	2023-03-31	2023-04-04	Standard	Chess South Africa (CSA)	9	6	2	Yes	Analysis
30	JNW Open - Crawford 2023 (U10)	2023-03-04	2023-03-04	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
31	JMC 1 St Peters 2023 (D)	2023-03-18	2023-03-18	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
32	2022 South African Junior Wild Card Chess Championships (U8 Girls)	2022-12-09	2022-12-12	Standard	4 Knights (4K)	7	7	6	Yes	Analysis
33	2022 South African Junior Team Chess Championships (U8 Open+Girls)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis
34	Mzansi Spring Open 2022 (U8)	2022-09-03	2022-09-03	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
35	JMC 3rd Trials 2022 (U8)	2022-09-11	2022-09-11	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis
36	JMC 2nd Trials 2022 (U8)	2022-08-27	2022-08-27	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
37	JNW Helpmekaar 2022 (Rookies)	2022-07-09	2022-07-09	Standard	Johannesburg Metro (GJM)	5	5	0	Yes	Analysis
38	Goforchess Junior Championship 2022 (Grayston)	2022-03-06	2022-03-06	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
39	Goforchess Junior Championship 2022 (Saheti)	2022-03-05	2022-03-05	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
40	South African Junior Closed Chess Championships 2022 (U8 Girls)	2022-03-28	2022-04-01	Standard	Chess South Africa (CSA)	9	6	0	Yes	Analysis
41	JMC Charterhouse Open 2022 (E)	2022-02-12	2022-02-12	Standard	Johannesburg Metro (GJM)	5	4	3.5	Yes	Analysis

#	Games	Start				End
1	16	Tournament South African Junior Closed Chess Championship 2024				Tournament JMC Trinityhouse Little Falls 2024
		date 2024-04-29	rnd 6	type Standard	result 1	date 2024-06-02	rnd 2	type Standard	result 1
		Opponent Titus, S (Sade Catherine)				Opponent Meijer, C (Carlo)
2	10	Tournament ThinkChess Academy 2023				Tournament Africawide Chess Championship 2023
		date 2023-09-09	rnd 3	type Standard	result 1	date 2023-11-04	rnd 2	type Standard	result 1
		Opponent Musthan, Z (Zainul)				Opponent Stelloh, A (Alexander)
3	6	Tournament JMC - Trinity Randpark Ridge 2025				Tournament GoForChess Junior Chess Championships 2025
		date 2025-07-26	rnd 1	type Standard	result 1	date 2025-09-14	rnd 1	type Standard	result 1
		Opponent Laval, E (Ethan)				Opponent Rawjee, A (Aiden)

#	Games	Start				End
1	16	Tournament South African Junior Closed Chess Championship 2024				Tournament JMC Trinityhouse Little Falls 2024
		date 2024-04-29	rnd 6	type Standard	result 1	date 2024-06-02	rnd 2	type Standard	result 1
		Opponent Titus, S (Sade Catherine)				Opponent Meijer, C (Carlo)
2	6	Tournament JMC - Trinity Randpark Ridge 2025				Tournament GoForChess Junior Chess Championships 2025
		date 2025-07-26	rnd 1	type Standard	result 1	date 2025-09-14	rnd 1	type Standard	result 1
		Opponent Laval, E (Ethan)				Opponent Rawjee, A (Aiden)
3	5	Tournament JMC Crawford Ruimsig 2025				Tournament South African Junior Closed Chess Championships 2025
		date 2025-03-01	rnd 2	type Standard	result 1	date 2025-03-31	rnd 1	type Standard	result 1
		Opponent Smith, C (Caleb)				Opponent Fourie, J (Josey)

#	Games	Start				End
1	5	Tournament Chess Molecules Rapid 2023				Tournament Chess Molecules Rapid 2023
		date 2023-09-23	rnd 1	type Rapid	result 1	date 2023-09-23	rnd 5	type Rapid	result 1
		Opponent Blyth, R (Riley)				Opponent Scully, E (Ernest)

No games found.

#	Games	Start				End

#	Games	Start				End
1	10	Tournament ThinkChess Academy 2023				Tournament Africawide Chess Championship 2023
		date 2023-09-09	rnd 3	type Standard	result 1	date 2023-11-04	rnd 2	type Standard	result 1
		Opponent Musthan, Z (Zainul)				Opponent Stelloh, A (Alexander)
2	8	Tournament South African Junior Closed Chess Championship 2024				Tournament JMC Helpmekaar Kollege Tournament 2024
		date 2024-04-29	rnd 6	type Standard	result 1	date 2024-05-04	rnd 4	type Standard	result 1
		Opponent Titus, S (Sade Catherine)				Opponent Pillay, Y (Yishai)
3	7	Tournament GoForChess Junior Chess Championships 2024				Tournament JMC Trinityhouse Little Falls 2024
		date 2024-05-19	rnd 1	type Standard	result 1	date 2024-06-02	rnd 2	type Standard	result 1
		Opponent Cirone, V (Vito)				Opponent Meijer, C (Carlo)

#	Games	Start				End
1	8	Tournament South African Junior Closed Chess Championship 2024				Tournament JMC Helpmekaar Kollege Tournament 2024
		date 2024-04-29	rnd 6	type Standard	result 1	date 2024-05-04	rnd 4	type Standard	result 1
		Opponent Titus, S (Sade Catherine)				Opponent Pillay, Y (Yishai)
2	7	Tournament GoForChess Junior Chess Championships 2024				Tournament JMC Trinityhouse Little Falls 2024
		date 2024-05-19	rnd 1	type Standard	result 1	date 2024-06-02	rnd 2	type Standard	result 1
		Opponent Cirone, V (Vito)				Opponent Meijer, C (Carlo)
3	5	Tournament JMC Crawford Ruimsig 2025				Tournament South African Junior Closed Chess Championships 2025
		date 2025-03-01	rnd 2	type Standard	result 1	date 2025-03-31	rnd 1	type Standard	result 1
		Opponent Smith, C (Caleb)				Opponent Fourie, J (Josey)

#	Games	Start				End
1	5	Tournament Chess Molecules Rapid 2023				Tournament Chess Molecules Rapid 2023
		date 2023-09-23	rnd 1	type Rapid	result 1	date 2023-09-23	rnd 5	type Rapid	result 1
		Opponent Blyth, R (Riley)				Opponent Scully, E (Ernest)

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	Chinoruma ,M (Maka)	5	5	425	5	5	425	0	0	0	0	0	0
1	Chinoruma ,M (Maka)	5	1065.6	1490.6	5	1086.2	1490.6	0	0	0	0	0	0
2	Stelloh ,S (Sebastian)	5	2.5	0	5	2.5	0	0	0	0	0	0	0
2	Stelloh ,S (Sebastian)	5	1298.5	1298.5	5	1284.4	1298.5	0	0	0	0	0	0
3	Steyn ,M (Mari-Louise)	4	2	0	4	2	0	0	0	0	0	0	0
3	Steyn ,M (Mari-Louise)	4	1191.5	1191.5	4	1188.7	1191.5	0	0	0	0	0	0
4	Vermaak ,A (Alri)	4	2.5	106.2	4	2.5	106.2	0	0	0	0	0	0
4	Vermaak ,A (Alri)	4	1427.5	1533.8	4	1424.7	1533.8	0	0	0	0	0	0
5	Goncalves ,E (Emilio)	3	0	-425	3	0	-425	0	0	0	0	0	0
5	Goncalves ,E (Emilio)	3	1519.2	1094.2	3	1503.4	1094.2	0	0	0	0	0	0
6	Conradie ,M (Minka)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
6	Conradie ,M (Minka)	3	1347.8	1206.2	3	1341.8	1206.2	0	0	0	0	0	0
7	Pelser ,A (Aidan)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
7	Pelser ,A (Aidan)	3	1238.5	1521.8	3	1241.4	1521.8	0	0	0	0	0	0
8	Brits ,E (Etienne)	3	0	-425	3	0	-425	0	0	0	0	0	0
8	Brits ,E (Etienne)	3	1466.9	1041.9	3	1476.6	1041.9	0	0	0	0	0	0
9	Du Pisani ,M (Malcolm)	3	3	425	3	3	425	0	0	0	0	0	0
9	Du Pisani ,M (Malcolm)	3	1259.1	1684.1	3	1274.1	1684.1	0	0	0	0	0	0
10	Conradie ,I (Ingrid)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
10	Conradie ,I (Ingrid)	3	1440.6	1298.9	3	1437.4	1298.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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Personal

Exarchos, I (Isabella)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms