PLAYER PAGE

Isabella Exarchos

2150136753
Johannesburg Metro (GJM)
Personal
Main rating
Rating 1656.4
K-factor 28
Floor 1156.4
Highest 1656.4 (2026-03-01)
Min/Max +/- allowed 87
Rating Change
()
Games 9
Score 5.5
We 5.15
SWe 0.35
Temp +/- 9.7
Penalties 0
Weight perform 1655.9
Final +/- +9.7
New Rating
()
Rating 1666.1
K-factor 28
Floor 1166.1
Highest 1666.1 (2026-04-01)
Min/Max +/- allowed 85.4
Standard rating
Rating 1656.4
K-factor 28
Floor 1156.4
Highest 1656.4 (2026-03-01)
Min/Max +/- allowed 86.5
Rating Change
()
Games 9
Score 5.5
We 5.14
SWe 0.36
Temp +/- 10.1
Penalties 0
Weight perform 1655.9
Final +/- +10.1
New Rating
()
Rating 1666.5
K-factor 28
Floor 1166.5
Highest 1666.5 (2026-04-01)
Min/Max +/- allowed 85.3
Rapid rating
Rating 1300.4
K-factor 36
Floor 800.4
Highest 1633.1 (2023-09-01)
Min/Max +/- allowed 89.5
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1300.4
K-factor 36
Floor 800.4
Highest 1633.1 (2023-09-01)
Min/Max +/- allowed 89.5
Blitz rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 South African Junior Closed Chess Championship 2026 (U12 Girls) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1656.4 9 5.5 1684.3 9.7 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 JMC Trinityhouse Little Falls (U12) Standard 2026-02-28 2026-02-28 Johannesburg Metro (GJM) 5 1623.2 5 4 1756.4 19.4 Details
2 2026 Tshwane Chess Registration Tournament (B) Standard 2026-01-31 2026-01-31 Tshwane (GTP) 5 1694.2 5 2 1471 -22.4 Details
3 2025 Mzansi Individual Championships (U12 Girls) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1537 6 5.5 1823.1 42.2 Details
4 2025 Mzansi Inter Provincial Team Championships (U12 Combined) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1537 6 6 1769.5 27.6 Details
5 Gauteng Inter-Region at Emerald Resort 2025 (U12 Girls) Standard 2025-12-06 2025-12-07 Sedibeng (GSV) 5 1537 5 3 1644.9 11.1 Details
6 GoForChess Junior Chess Championships 2025 (U12) Standard 2025-09-14 2025-09-14 Johannesburg Metro (GJM) 5 1513.5 5 4 1669.7 14.6 Details
7 JMC - Trinity Randpark Ridge 2025 (U12) Standard 2025-07-26 2025-07-26 Johannesburg Metro (GJM) 5 1508.5 5 3.5 1546.7 3.2 Details
8 South African Junior Closed Chess Championships 2025 (U10 Girls) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1514.9 9 5 1483.2 -7.4 Details
9 JMC Crawford Ruimsig 2025 (C) Standard 2025-03-01 2025-03-01 Johannesburg Metro (GJM) 5 1438.6 5 4 1673.9 23.7 Details
10 First Knights Juniors Chess Tournament 2025 (A+B) Standard 2025-02-09 2025-02-09 Johannesburg Metro (GJM) 5 1424.1 5 3 1602.6 18.1 Details
11 JMC Kick Off 2025 (C) Standard 2025-02-02 2025-02-02 Johannesburg Metro (GJM) 5 1424.1 5 2.5 1338.1 -9 Details
12 Gauteng Inter-Region at UJ 2024 (U10 Open) Standard 2024-12-07 2024-12-08 Johannesburg Metro (GJM) 5 1392.2 5 3.5 1559.8 17.8 Details
13 Laerskool Doringkloof Primary Open Chess Tournament 2024 (B) Standard 2024-10-19 2024-10-19 Tshwane (GTP) 5 1460.3 5 2.5 1284 -17.8 Details
14 2024 Gauteng North Open Chess Tournament (B) Standard 2024-10-05 2024-10-06 Tshwane (GTP) 5 1460.3 5 2 1242.3 -24.8 Details
15 Chess Power House July Open 2024 (C) Standard 2024-07-20 2024-07-20 Johannesburg Metro (GJM) 5 1485.8 5 3 1327.4 -15.9 Details
16 2024 African Youth Chess Championship Classical 2024-06-16 2024-06-22 Tshwane (GTP) 9 1582 9 4.5 1205.1 -62.6 Details
17 Second Knight Riders Juniors Open Chess Tournament 2024 (C) Standard 2024-06-08 2024-06-08 Johannesburg Metro (GJM) 5 1582 5 3 1341 -22.6 Details
18 JMC Trinityhouse Little Falls 2024 (U10) Standard 2024-06-02 2024-06-02 Johannesburg Metro (GJM) 5 1582 5 3 1469.2 -10.1 Details
19 GoForChess Junior Chess Championships 2024 (Junior) Standard 2024-05-19 2024-05-19 Johannesburg Metro (GJM) 5 1457.9 5 5 1663.6 20.9 Details
20 South African Junior Closed Chess Championship 2024 (U10 Girls) Classical 2024-04-27 2024-05-01 Ekurhuleni (GE) 9 1457.9 9 6 1475.7 3.4 Details
21 JMC Helpmekaar Kollege Tournament 2024 (U10) Standard 2024-05-04 2024-05-04 Johannesburg Metro (GJM) 5 1457.9 5 4.5 1692.2 23.9 Details
22 1st Knights Open Tournament 2024 (U10) Standard 2024-03-23 2024-03-23 Johannesburg Metro (GJM) 5 1433.5 5 4 1452.6 1.5 Details
23 JMC Unika School Tournament 2024 (U10) Standard 2024-03-02 2024-03-02 Johannesburg Metro (GJM) 5 1433.5 5 4 1579 13.8 Details
24 2024 Gauteng Inter-Region Chess Championship (U10B) Standard 2024-01-13 2024-01-14 Tshwane (GTP) 5 1399.6 5 3 1409 0.4 Details
25 JMC Kick Off Tournament 2024 (U10) Standard 2024-01-28 2024-01-28 Johannesburg Metro (GJM) 5 1399.6 5 3 1419 2.7 Details
26 Africawide Chess Championship 2023 (Development A) Standard 2023-11-04 2023-11-04 Johannesburg Metro (GJM) 5 1333.1 5 4 1518.5 21.4 Details
27 ThinkChess Academy 2023 (B) Standard 2023-09-09 2023-09-09 Johannesburg Metro (GJM) 5 1233.6 5 4 1505.6 27.2 Details
28 Chess Molecules Rapid 2023 (Grade 0-2) Rapid 2023-09-23 2023-09-23 Ekurhuleni (GE) 5 1233.6 5 5 1726.7 35.5 Details
29 JMC Closed Aug 2023 (U10) Standard 2023-08-04 2023-08-06 Johannesburg Metro (GJM) 6 1282 6 2 1053.4 -30.2 Details
30 JMC - The Higher Ground Restaurant 2nd Blitz Event 2023 Blitz 2023-07-30 2023-07-30 Johannesburg Metro (GJM) 7 1282 0 0 0 0 Details
31 2023 South African Junior Closed Chess Championships (U8 Girls) Classical 2023-03-31 2023-04-04 Chess South Africa (CSA) 9 1340.2 6 2 1080.4 -36.6 Details
32 JNW Open - Crawford 2023 (U10) Standard 2023-03-04 2023-03-04 Johannesburg Metro (GJM) 5 1442.2 5 3 1285 -15.8 Details
33 JMC 1 St Peters 2023 (D) Standard 2023-03-18 2023-03-18 Johannesburg Metro (GJM) 5 1442.2 5 1 940.4 -48 Details
34 2022 South African Junior Wild Card Chess Championships (U8 Girls) Classical 2022-12-09 2022-12-12 4 Knights (4K) 7 1282 7 6 1527.8 39.8 Details
35 2022 South African Junior Team Chess Championships (U8 Open+Girls) Classical 2022-12-04 2022-12-08 4 Knights (4K) 7 1282 7 4.5 1391.4 15.6 Details
36 Mzansi Spring Open 2022 (U8) Standard 2022-09-03 2022-09-03 Johannesburg Metro (GJM) 5 1011.9 5 4 1362.1 34.9 Details
37 JMC 3rd Trials 2022 (U8) Standard 2022-09-11 2022-09-11 Johannesburg Metro (GJM) 5 1011.9 5 5 1679.7 64.2 Details
38 JMC 2nd Trials 2022 (U8) Standard 2022-08-27 2022-08-27 Johannesburg Metro (GJM) 5 988.3 5 2 1117.1 13.1 Details
39 JNW Helpmekaar 2022 (Rookies) Standard 2022-07-09 2022-07-09 Johannesburg Metro (GJM) 5 1032.2 5 0 777.8 -24.4 Details
40 South African Junior Closed Chess Championships 2022 (U8 Girls) Classical 2022-03-28 2022-04-01 Chess South Africa (CSA) 9 1139.8 6 0 715 -59.8 Details
41 Goforchess Junior Championship 2022 (Grayston) Standard 2022-03-06 2022-03-06 Johannesburg Metro (GJM) 5 1227.6 4 0 772.2 -35.5 Details
42 Goforchess Junior Championship 2022 (Saheti) Standard 2022-03-05 2022-03-05 Johannesburg Metro (GJM) 5 1227.6 5 2 1095 -13.6 Details
43 JMC Charterhouse Open 2022 (E) Standard 2022-02-12 2022-02-12 Johannesburg Metro (GJM) 5 1200 4 3.5 1375.8 13.8 Details
Game statistics ( )
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics ()
Games 19
Wins 11
Draws 1
Losses 7
White 9
Black 10
White wins 5
Black wins 6
Score 11.5
Percent 60.5
Dp 89.5
AOR 1557.7
Performance 1647.2
Game statistics (History)
Games 238
Wins 141
Draws 12
Losses 85
White 120
Black 118
White wins 77
Black wins 64
Score 147
Percent 61.8
Dp 100
AOR 1312
Performance 1412
Rankings (Main)
National
Overall 701
Gender 46
Age group 21
Gender/Age 2
Provincial
Overall 253
Gender 19
Age group 12
Gender/Age 2
Regional
Overall 93
Gender 10
Age group 5
Gender/Age 1
Rankings (Standard)
National
Overall 661
Gender 45
Age group 22
Gender/Age 3
Provincial
Overall 252
Gender 20
Age group 13
Gender/Age 3
Regional
Overall 89
Gender 10
Age group 6
Gender/Age 2
Rankings (Rapid)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Rankings (Blitz)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Performance ( )
Games 9
Score 5.5
Percent 61.1
Aor 1589.9
Dp 94.4
Prat 1684.4
Performance ()
Games 19
Score 11.5
Percent 60.5
Aor 1557.7
Dp 89.5
Prat 1647.2
Performance (12 months)
Games 46
Score 33.5
Percent 72.8
Aor 1483.3
Dp 194
Prat 1677.4
Performance (History)
Games 238
Score 147
Percent 61.8
Aor 1312
Dp 100
Prat 1412
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Vermaak, A (Alri) 5 3 2 2022 South African Junior Wild Card Chess Championships (U8 Girls) Gauteng Inter-Region at Emerald Resort 2025 (U12 Girls) Details
Overall 2 Stelloh, S (Sebastian) 5 1 4 JMC 2nd Trials 2022 (U8) JMC Helpmekaar Kollege Tournament 2024 (U10) Details
Overall 3 Chinoruma, M (Maka) 5 4 1 JMC Charterhouse Open 2022 (E) JMC Closed Aug 2023 (U10) Details
Overall 4 Steyn, M (Mari-Louise) 4 1 3 JMC 2nd Trials 2022 (U8) 2023 South African Junior Closed Chess Championships (U8 Girls) Details
Overall 5 Le Kay, A (Alexa) 4 1 3 South African Junior Closed Chess Championships 2022 (U8 Girls) 2025 Mzansi Inter Provincial Team Championships (U12 Combined) Details
Standard 1 Vermaak, A (Alri) 5 3 2 2022 South African Junior Wild Card Chess Championships (U8 Girls) Gauteng Inter-Region at Emerald Resort 2025 (U12 Girls) Details
Standard 2 Stelloh, S (Sebastian) 5 1 4 JMC 2nd Trials 2022 (U8) JMC Helpmekaar Kollege Tournament 2024 (U10) Details
Standard 3 Chinoruma, M (Maka) 5 4 1 JMC Charterhouse Open 2022 (E) JMC Closed Aug 2023 (U10) Details
Standard 4 Steyn, M (Mari-Louise) 4 1 3 JMC 2nd Trials 2022 (U8) 2023 South African Junior Closed Chess Championships (U8 Girls) Details
Standard 5 Le Kay, A (Alexa) 4 1 3 South African Junior Closed Chess Championships 2022 (U8 Girls) 2025 Mzansi Inter Provincial Team Championships (U12 Combined) Details