PLAYER PAGE

Isabella Exarchos

2150136753
Johannesburg Metro (GJM)
Personal
Main rating
Rating 1666.1
K-factor 28
Floor 1166.1
Highest 1666.1 (2026-04-01)
Min/Max +/- allowed 85
Rating Change
()
Games 5
Score 4
We 3.57
SWe 0.36
Temp +/- 10
Penalties 0
Weight perform 1667.6
Final +/- +10
New Rating
()
Rating 1676.1
K-factor 28
Floor 1176.1
Highest 1676.1 (2026-06-01)
Min/Max +/- allowed 84.1
Standard rating
Rating 1666.5
K-factor 28
Floor 1166.5
Highest 1666.5 (2026-04-01)
Min/Max +/- allowed 85.3
Rating Change
()
Games 5
Score 4
We 3.47
SWe 0.53
Temp +/- 14.8
Penalties 0
Weight perform 1667.6
Final +/- +14.8
New Rating
()
Rating 1681.3
K-factor 28
Floor 1181.3
Highest 1681.3 (2026-06-01)
Min/Max +/- allowed 83.5
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 JMC Helpmekaar 2026 (U12) Standard 2026-05-31 2026-05-31 Johannesburg Metro (GJM) 5 1666.1 5 4 1744.8 10 Details
# 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
2 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
3 2026 Tshwane Chess Registration Tournament (B) Standard 2026-01-31 2026-01-31 Tshwane (GTP) 5 1694.2 5 2 1471 -22.4 Details
4 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
5 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
6 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
7 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
8 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
9 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
10 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
11 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
12 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
13 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
14 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
15 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
16 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
17 2024 African Youth Chess Championship Classical 2024-06-16 2024-06-22 Tshwane (GTP) 9 1582 9 4.5 1205.1 -62.6 Details
18 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
19 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
20 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
21 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
22 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
23 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
24 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
25 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
26 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
27 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
28 ThinkChess Academy 2023 (B) Standard 2023-09-09 2023-09-09 Johannesburg Metro (GJM) 5 1233.6 5 4 1505.6 27.2 Details
29 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
30 JMC Closed Aug 2023 (U10) Standard 2023-08-04 2023-08-06 Johannesburg Metro (GJM) 6 1282 6 2 1053.4 -30.2 Details
31 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
32 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
33 JNW Open - Crawford 2023 (U10) Standard 2023-03-04 2023-03-04 Johannesburg Metro (GJM) 5 1442.2 5 3 1285 -15.8 Details
34 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
35 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
36 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
37 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
38 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
39 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
40 JNW Helpmekaar 2022 (Rookies) Standard 2022-07-09 2022-07-09 Johannesburg Metro (GJM) 5 1032.2 5 0 777.8 -24.4 Details
41 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
42 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
43 Goforchess Junior Championship 2022 (Saheti) Standard 2022-03-05 2022-03-05 Johannesburg Metro (GJM) 5 1227.6 5 2 1095 -13.6 Details
44 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 24
Wins 15
Draws 1
Losses 8
White 12
Black 12
White wins 7
Black wins 8
Score 15.5
Percent 64.6
Dp 124
AOR 1543.6
Performance 1667.5
Game statistics (History)
Games 243
Wins 145
Draws 12
Losses 86
White 123
Black 120
White wins 79
Black wins 66
Score 151
Percent 62.1
Dp 103.2
AOR 1315.7
Performance 1418.9
Rankings (Main)
National
Overall 703
Gender 44
Age group 25
Gender/Age 4
Provincial
Overall 244
Gender 17
Age group 10
Gender/Age 3
Regional
Overall 95
Gender 10
Age group 6
Gender/Age 3
Rankings (Standard)
National
Overall 653
Gender 41
Age group 27
Gender/Age 4
Provincial
Overall 233
Gender 15
Age group 11
Gender/Age 3
Regional
Overall 87
Gender 9
Age group 7
Gender/Age 3
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 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 24
Score 15.5
Percent 64.6
Aor 1543.6
Dp 124
Prat 1667.5
Performance (12 months)
Games 51
Score 37.5
Percent 73.5
Aor 1484
Dp 200
Prat 1684
Performance (History)
Games 243
Score 151
Percent 62.1
Aor 1315.7
Dp 103.2
Prat 1418.9
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Stelloh, S (Sebastian) 5 1 4 JMC 2nd Trials 2022 (U8) JMC Helpmekaar Kollege Tournament 2024 (U10) Details
Overall 2 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 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 Stelloh, S (Sebastian) 5 1 4 JMC 2nd Trials 2022 (U8) JMC Helpmekaar Kollege Tournament 2024 (U10) Details
Standard 2 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 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