PLAYER PAGE

Kaylee-Jane Koen

2100112735
Tshwane (GTP)
Personal
Main rating
Rating 1524.3
K-factor 32
Floor 1024.3
Highest 1524.3 (2026-03-01)
Min/Max +/- allowed 104
Rating Change
()
Games 14
Score 7.5
We 9.08
SWe -1.61
Temp +/- -51.4
Penalties 0
Weight perform 1486
Final +/- -51.4
New Rating
()
Rating 1472.8
K-factor 32
Floor 1024.3
Highest 1524.3 (2026-03-01)
Min/Max +/- allowed 104.5
Standard rating
Rating 1524.3
K-factor 32
Floor 1024.3
Highest 1524.3 (2026-03-01)
Min/Max +/- allowed 104.5
Rating Change
()
Games 14
Score 7.5
We 9.08
SWe -1.58
Temp +/- -50.5
Penalties 0
Weight perform 1486
Final +/- -50.5
New Rating
()
Rating 1473.8
K-factor 32
Floor 1024.3
Highest 1524.3 (2026-03-01)
Min/Max +/- allowed 104.5
Rapid rating
Rating 1200
K-factor 36
Floor 700
Highest 1214.3 (2023-10-01)
Min/Max +/- allowed 162.5
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 1214.3 (2023-10-01)
Min/Max +/- allowed 162.5
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 2026 D3 Tshwane North School Cluster 4&5 Individuals (U18 Girls) Standard 2026-04-11 2026-04-11 Tshwane (GTP) 5 1524.3 5 4 1537.1 3.5 Details
2 South African Junior Closed Chess Championship 2026 (U16 Girls) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1524.3 9 3.5 1357.5 -54.9 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 2026 Lubowski Open Chess Tournament (C) Standard 2026-03-21 2026-03-22 Tshwane (GTP) 5 1467.6 5 4 1696.2 39.2 Details
2 2026 Tshwane Chess Registration Tournament (C1) Standard 2026-01-31 2026-01-31 Tshwane (GTP) 5 1471.1 5 3 1439.9 -2.3 Details
3 2025 Mzansi Individual Championships (U16 Girls) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1406.8 6 3 1420.7 0.2 Details
4 2025 Mzansi Inter Provincial Team Championships (U20 Girls) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1406.8 6 6 1579.3 20.6 Details
5 Gauteng Inter-Region at Emerald Resort 2025 (U16+U18 Girls) Standard 2025-12-06 2025-12-07 Sedibeng (GSV) 5 1406.8 5 4 1573.8 19.4 Details
6 2025 Laerskool Doringkloof Primary Open Chess Tournament (C) Standard 2025-10-25 2025-10-25 Tshwane (GTP) 5 1408.6 5 2.5 1252.4 -14.4 Details
7 2025 Gauteng Schools Provincial Individual Chess Championship (U15 Girls) Standard 2025-09-27 2025-09-27 Tshwane (GTP) 5 1408.6 5 4 1536.1 13.1 Details
8 Tshwane Chess Club Clash 2025 (Ladies) Standard 2025-09-13 2025-09-13 Tshwane (GTP) 5 1437.3 4 1 1207.3 -17.9 Details
9 2025 Midstream Open Chess Tournament (C) Standard 2025-08-25 2025-08-25 Tshwane (GTP) 5 1487.5 5 2.5 1387.5 -10.3 Details
10 2025 Tshwane North District CLOSED Team Championships (D3) (U17 Open) Standard 2025-08-16 2025-08-16 Tshwane (GTP) 5 1487.5 5 3 1288.3 -19.9 Details
11 2025 Etienne Lewis Closed Chess Tournament (U16) Standard 2025-08-08 2025-08-10 Tshwane (GTP) 7 1487.5 7 4 1474.1 -1.1 Details
12 2025 Tshwane North School District Cluster 4 & 5 Team League (D3) (U17) Standard 2025-07-26 2025-07-26 Tshwane (GTP) 5 1361.9 5 4 1522.1 16.4 Details
13 South African Open 2025 (U16 Girls) Classical 2025-07-03 2025-07-05 Johannesburg Metro (GJM) 5 1361.9 5 4 1689.2 37.6 Details
14 2025 Tshwane North School District CLOSED Individual Chess Championship (U15 Girls) Standard 2025-05-24 2025-05-24 Tshwane (GTP) 5 1355.3 5 3 1301.1 -5.8 Details
15 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U15 Girls) Standard 2025-05-10 2025-05-10 Tshwane (GTP) 5 1355.3 5 4 1560.1 20.7 Details
16 Moja Chess Extravaganza 2025 (C) Classical 2025-04-26 2025-05-01 Johannesburg Metro (GJM) 9 1355.3 9 4 1219.8 -29.4 Details
17 South African Junior Closed Chess Championships 2025 (U16 Girls) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1395.4 8 1.5 1129 -50.2 Details
18 Lubowski Open 2025 (C) Standard 2025-03-21 2025-03-22 Tshwane (GTP) 5 1367.6 5 3 1532.7 17.3 Details
19 2025 Tshwane Chess OPEN Registration Tournament (A2) Standard 2025-01-25 2025-01-25 Tshwane (GTP) 5 1380.4 4 0.5 1303.9 -8 Details
20 Mzansi Interprovincial Youth Chess Championships 2024 (U16 Girls Championship) Classical 2024-12-16 2024-12-19 Capricorn (LCP) 7 1401 7 4 1398.4 -1.2 Details
21 Gauteng Inter-Region at UJ 2024 (U16+U18 Girls) Standard 2024-12-07 2024-12-08 Johannesburg Metro (GJM) 5 1401 5 2.5 1300.6 -11.6 Details
22 2024 South Africa National Schools Chess Championship (U15 Girls) Standard 2024-09-27 2024-09-28 Nelson Mandela Bay (ENM) 7 1388.4 7 4 1341.9 -7.5 Details
23 2024 Etienne Lewis (U16) Standard 2024-08-30 2024-09-01 Tshwane (GTP) 7 1388.4 7 3.5 1375.1 -1.1 Details
24 Gauteng Schools Individuals Finals 2024 (U15 Girls) Standard 2024-08-17 2024-08-17 Ekurhuleni (GE) 5 1388.4 5 4 1551.9 15.6 Details
25 2024 Tshwane North School District Team League Finals (U17) Standard 2024-08-03 2024-08-03 Tshwane (GTP) 5 1386.6 5 3 1389.9 1 Details
26 2024 Elise Steenkamp Open Chess Tournament (Queens) Standard 2024-06-15 2024-06-17 Tshwane (GTP) 7 1393 7 4 1282.8 -15.9 Details
27 2024 Tshwane North School District CLOSED Individual Champioships (U15 Girls) Standard 2024-05-11 2024-05-11 Tshwane (GTP) 5 1310.3 5 5 1661.9 33.7 Details
28 2024 Chris Greyling Open Chess Tournament (D3) Standard 2024-03-16 2024-03-16 Tshwane (GTP) 5 1312.4 5 2 1293.3 -1.2 Details
29 2024 Gauteng Inter-Region Chess Championship (U14 Girls) Standard 2024-01-13 2024-01-14 Tshwane (GTP) 5 1245.7 5 4 1587.3 37 Details
30 Gauteng Soncini Finals 2023 (Girls) Rapid 2023-10-28 2023-10-28 Ekurhuleni (GE) 5 1229.3 5 3 1403.1 9.2 Details
31 2023 Alekhine Open Tournament (C) Standard 2023-09-09 2023-09-09 Tshwane (GTP) 5 1308.8 4 0 809.1 -44.1 Details
32 2023 Etienne Lewis Closed Tournament (U14) Standard 2023-08-25 2023-08-27 Tshwane (GTP) 7 1340.3 7 3 1219.5 -17.8 Details
33 2023 Tshwane North School District CLOSED Individual Championships (D3) Standard 2023-05-13 2023-05-13 Tshwane (GTP) 5 1228.6 5 4 1481.4 25.4 Details
34 Gauteng Schools Individual Finals 2023 (U13 Girls) Standard 2023-05-26 2023-05-26 Ekurhuleni (GE) 5 1228.6 5 4 1527.3 28.4 Details
35 Schoemies Kings & Queens 2023 (Rooks) Standard 2023-03-18 2023-03-18 Bojanala Platina (NBR) 5 1201.4 5 3 1362.7 14.9 Details
36 Chris Greyling Open Tournament 2023 (BC) Standard 2023-03-21 2023-03-21 Tshwane (GTP) 5 1201.4 5 1.5 1198.7 0.3 Details
37 2023 Piet Robbertse Fide Rated Open Chess Tournament (B) Standard 2023-02-04 2023-02-05 Tshwane (GTP) 5 1242.7 4 0 984.2 -22.9 Details
38 2022 Gauteng Schools Team Championships (U13 Open) Standard 2022-08-27 2022-08-27 Tshwane (GTP) 5 1223.9 5 3 1325.6 10.6 Details
39 2019 D3 Individuals (U9 Girls) Standard 2019-04-13 2019-04-13 Tshwane (GTP) 5 1200 4 3.5 1344.7 12.1 Details
Game statistics ( )
Games 5
Wins 4
Draws 0
Losses 1
White 2
Black 3
White wins 1
Black wins 3
Score 4
Percent 80
Dp 255
AOR 1282.1
Performance 1537.1
Game statistics ()
Games 24
Wins 14
Draws 1
Losses 9
White 11
Black 13
White wins 7
Black wins 7
Score 14.5
Percent 60.4
Dp 88.5
AOR 1394.1
Performance 1482.6
Game statistics (History)
Games 225
Wins 121
Draws 17
Losses 87
White 113
Black 112
White wins 63
Black wins 58
Score 129.5
Percent 57.6
Dp 64.2
AOR 1320.1
Performance 1384.3
Rankings (Main)
National
Overall 1621
Gender 174
Age group 193
Gender/Age 29
Provincial
Overall 558
Gender 63
Age group 66
Gender/Age 9
Regional
Overall 207
Gender 25
Age group 28
Gender/Age 5
Rankings (Standard)
National
Overall 1486
Gender 169
Age group 177
Gender/Age 28
Provincial
Overall 529
Gender 61
Age group 64
Gender/Age 9
Regional
Overall 203
Gender 25
Age group 28
Gender/Age 5
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 14
Score 7.5
Percent 53.6
Aor 1391.2
Dp 30.4
Prat 1421.6
Performance ()
Games 24
Score 14.5
Percent 60.4
Aor 1394.1
Dp 88.5
Prat 1482.6
Performance (12 months)
Games 101
Score 63.5
Percent 62.9
Aor 1328.8
Dp 109.4
Prat 1438.2
Performance (History)
Games 225
Score 129.5
Percent 57.6
Aor 1320.1
Dp 64.2
Prat 1384.3
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Grobler, A (Amorette) 4 2 2 2019 D3 Individuals (U9 Girls) 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U15 Girls) Details
Overall 2 Botha, A (Andrea) 3 3 0 Gauteng Schools Individual Finals 2023 (U13 Girls) South African Open 2025 (U16 Girls) Details
Overall 3 Urombo, B (Blessing) 2 1 1 2025 Midstream Open Chess Tournament (C) 2025 Laerskool Doringkloof Primary Open Chess Tournament (C) Details
Overall 4 Bowkers, D (Delcine) 2 1 1 2025 Mzansi Inter Provincial Team Championships (U20 Girls) 2025 Mzansi Inter Provincial Team Championships (U20 Girls) Details
Overall 5 Rautenbach, H (Helen Christine) 2 0 2 South African Open 2025 (U16 Girls) 2025 Etienne Lewis Closed Chess Tournament (U16) Details
Standard 1 Grobler, A (Amorette) 4 2 2 2019 D3 Individuals (U9 Girls) 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U15 Girls) Details
Standard 2 Botha, A (Andrea) 3 3 0 Gauteng Schools Individual Finals 2023 (U13 Girls) South African Open 2025 (U16 Girls) Details
Standard 3 Steyn, A (Anneke) 2 1 1 Gauteng Inter-Region at Emerald Resort 2025 (U16+U18 Girls) 2025 Mzansi Individual Championships (U16 Girls) Details
Standard 4 Seitei, N (Neo) 2 1 1 2023 Alekhine Open Tournament (C) Lubowski Open 2025 (C) Details
Standard 5 Gafane, N (Naledi) 2 0 2 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U15 Girls) 2025 Tshwane North School District CLOSED Individual Chess Championship (U15 Girls) Details