PLAYER PAGE

Zelri Westermann

2160162781
Tshwane (GTP)
Personal
Main rating
Rating 1259.7
K-factor 36
Floor 798
Highest 1318.8 (2025-09-01)
Min/Max +/- allowed 140
Rating Change
()
Games 7
Score 2
We 2.88
SWe -0.82
Temp +/- -29.6
Penalties 0
Weight perform 1165.5
Final +/- -29.6
New Rating
()
Rating 1230.1
K-factor 36
Floor 798
Highest 1318.8 (2025-09-01)
Min/Max +/- allowed 140
Standard rating
Rating 1247.3
K-factor 36
Floor 801
Highest 1319.3 (2025-09-01)
Min/Max +/- allowed 139.9
Rating Change
()
Games 7
Score 2
We 2.81
SWe -0.81
Temp +/- -29.2
Penalties 0
Weight perform 1165.5
Final +/- -29.2
New Rating
()
Rating 1218.1
K-factor 36
Floor 801
Highest 1319.3 (2025-09-01)
Min/Max +/- allowed 139.9
Rapid 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
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 Etienne Lewis (U12) Standard 2026-08-08 2026-08-10 Tshwane (GTP) 7 1259.7 7 2 1149.2 -29.6 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 2026 Anton Van Wouw Open (D) Standard 2026-06-20 2026-06-20 Tshwane (GTP) 5 1313.8 5 2 986.2 -54.1 Details
2 2026 D1 Gauteng North School District Individual Championships (U11 Girls) Standard 2026-05-23 2026-05-23 Tshwane (GTP) 5 1252.1 5 4 1452.7 36.6 Details
3 2026 PBHS Open (U12) Standard 2026-04-25 2026-04-25 Tshwane (GTP) 5 1255.2 5 2 1245.3 -3.1 Details
4 2026 Silver Lakes Open Chess Tournament (U12) Standard 2026-03-07 2026-03-07 Tshwane (GTP) 5 1233.6 5 2 1284.5 7.4 Details
5 2026 Blou Bull Chess Tournament (U12) Standard 2026-02-21 2026-02-21 Tshwane (GTP) 5 1233.6 5 2 1232.6 0.9 Details
6 2026 AHS Chess Tournament (U12) Standard 2026-02-28 2026-02-28 Tshwane (GTP) 5 1233.6 5 2 1318.1 13.3 Details
7 2026 Piet Robbertse Open Chess Tournament (D) Standard 2026-02-07 2026-02-08 Tshwane (GTP) 5 1261.3 5 2 1107.7 -17.7 Details
8 2026 Tshwane Chess Registration Tournament (U12-2) Standard 2026-01-31 2026-01-31 Tshwane (GTP) 5 1261.3 5 2 1259.9 0.3 Details
9 Gauteng Inter-Region at Emerald Resort 2025 (U8+U10 Girls) Standard 2025-12-06 2025-12-07 Sedibeng (GSV) 5 1230.8 5 2 1421.3 19.6 Details
10 Bojanala's Merry ChessMas 2025 (Center Pawns) Standard 2025-11-29 2025-11-29 Bojanala Platina (NBR) 5 1230.8 5 2 1211.8 -2.7 Details
11 2025 Gauteng Top Schools Teams (U11) Standard 2025-08-29 2025-08-29 Tshwane (GTP) 5 1305.1 5 1 956.8 -34.5 Details
12 2025 Midstream Open Chess Tournament (U10) Standard 2025-08-25 2025-08-25 Tshwane (GTP) 5 1298 5 3 1414.6 10.6 Details
13 2025 Gauteng North School District CLOSED League Finals - D1 (U11) Standard 2025-08-16 2025-08-16 Tshwane (GTP) 5 1298 5 3 1354.2 4.8 Details
14 2025 Etienne Lewis Closed Chess Tournament (U10) Standard 2025-08-08 2025-08-10 Tshwane (GTP) 7 1298 7 2.5 1175.1 -18.2 Details
15 2025 Menlo Open (U10) Standard 2025-07-26 2025-07-26 Tshwane (GTP) 5 1283.7 5 3 1357.7 8 Details
16 2025 Jacaranda Round Robin Open Chess Tournament (K) Standard 2025-06-21 2025-06-21 Tshwane (GTP) 5 1276.8 5 2 1188.2 -8 Details
17 2025 Elise Steenkamp Open Chess Tournament (Knight) Standard 2025-06-14 2025-06-15 Tshwane (GTP) 5 1276.8 5 3 1376.6 11.8 Details
18 2025 Gauteng North School Individual Championships D1 (U9 Girls) Standard 2025-05-17 2025-05-17 Tshwane (GTP) 5 1247.6 5 3 1247.7 -0.7 Details
19 2025 Silver Lakes Chess Club Open Chess Tournament (U10) Standard 2025-05-03 2025-05-03 Tshwane (GTP) 5 1247.6 5 2.5 1414.7 16.8 Details
20 Lubowski Open 2025 (D2) Standard 2025-03-21 2025-03-22 Tshwane (GTP) 5 1228.1 5 2 1233.1 -0.4 Details
21 2025 Chris Greyling Open Chess Tournament (U10) Standard 2025-03-15 2025-03-15 Tshwane (GTP) 5 1228.1 5 2 1222.2 -1.3 Details
22 AHS Open Chess Tournament 2025 (U10) Standard 2025-03-01 2025-03-01 Tshwane (GTP) 5 1228.1 5 2.5 1259.2 2.3 Details
23 2025 Blou Bul Open Chess Tournament (E) Standard 2025-02-08 2025-02-08 Tshwane (GTP) 5 1124.6 5 3 1272.1 15.1 Details
24 2025 Piet Robbertse Fide Rated Open Chess Tournament (E) Standard 2025-02-01 2025-02-01 Tshwane (GTP) 5 1124.6 5 4 1503.5 42.4 Details
25 2025 Tshwane Chess OPEN Registration Tournament (U10) Standard 2025-01-25 2025-01-25 Tshwane (GTP) 5 1133.8 5 1 970.7 -15.3 Details
26 Gauteng Inter-Region at UJ 2024 (u10 gIRLS) Standard 2024-12-07 2024-12-08 Johannesburg Metro (GJM) 5 1143.6 5 1.5 1104.3 -5.4 Details
27 2024 Gauteng North Open Chess Tournament (U10) Standard 2024-10-05 2024-10-06 Tshwane (GTP) 5 1151.2 3 0 878.7 -18.9 Details
28 Gauteng Top Schools 2024 (U9 Open) Standard 2024-10-04 2024-10-04 Ekurhuleni (GE) 5 1151.2 5 3 1311.3 14.8 Details
29 Centurion Chess Open Tournament 2024 (U10) Standard 2024-09-21 2024-09-21 Tshwane (GTP) 5 1147.3 5 2 1147.5 0.7 Details
30 2024 Etienne Lewis (U10) Standard 2024-08-30 2024-09-01 Tshwane (GTP) 7 1147.3 7 3 1164.6 1.5 Details
31 2024 Alekhine Open Chess Tournament (U10) Standard 2024-08-09 2024-08-09 Tshwane (GTP) 5 1151.6 5 1 1037.3 -13.5 Details
32 D1 Gauteng North District School Closed 2024 (U9) Standard 2024-08-03 2024-08-03 Tshwane (GTP) 5 1151.6 5 3 1257.5 11.1 Details
33 2024 Midstream College Open Chess Tournament (U10) Standard 2024-07-20 2024-07-20 Tshwane (GTP) 5 1194.3 5 2.5 1192 0.2 Details
34 Menlopark Open Chess Tournament 2024 (U10) Standard 2024-07-13 2024-07-13 Tshwane (GTP) 5 1194.3 5 1 943.1 -23.9 Details
35 2024 Elise Steenkamp Open Chess Tournament (Bishops) Standard 2024-06-15 2024-06-15 Tshwane (GTP) 5 1192.1 5 2 1145.5 -5.8 Details
36 2024 Gauteng North School District Individual Championships - D1 (U9 Girls) Standard 2024-05-11 2024-05-11 Tshwane (GTP) 5 1029 5 4 1429.1 38.3 Details
37 2024 Mid Gauteng Open Chess Tournament (U10) Standard 2024-05-02 2024-05-02 Tshwane (GTP) 5 1029 5 2 1173.7 14.6 Details
38 2024 Milos Ristic Open Chess Tournament (U10) Standard 2024-04-27 2024-04-27 Tshwane (GTP) 5 1000.4 5 2 1128.6 11.8 Details
39 2024 KSNG CHess Academy Open Tournament (E) Standard 2024-04-06 2024-04-06 Tshwane (GTP) 5 1000.4 5 1 974.3 -3.7 Details
40 2024 Wynie Robbertse Chess Tournament (E) Standard 2024-03-02 2024-03-02 Tshwane (GTP) 5 1018 5 1 913.1 -9.8 Details
41 2024 Tshwane Chess AHS Open Chess Tournament (E) Standard 2024-02-24 2024-02-24 Tshwane (GTP) 5 1047.3 5 2 1109.9 5.3 Details
42 2024 Constantiapark Open (E) Standard 2024-02-17 2024-02-17 Tshwane (GTP) 5 1047.3 5 2 1111.6 6.8 Details
43 2024 Piet Robbertse Open Chess Tournament (E) Standard 2024-02-03 2024-02-03 Tshwane (GTP) 5 1047.3 5 1 849.3 -22.7 Details
44 2024 Blou Bul Open Chess Tournament (E) Standard 2024-02-10 2024-02-10 Tshwane (GTP) 5 1047.3 4 1 947.7 -7.8 Details
45 2024 Tshwane Chess OPEN Registration Tournament (E) Standard 2024-01-27 2024-01-27 Tshwane (GTP) 5 1100.5 5 1 807.9 -29.5 Details
46 2023 Gauteng Noord (F) Standard 2023-10-14 2023-10-14 Tshwane (GTP) 6 1200 6 0 782.8 -55.3 Details
Game statistics ( )
Games 7
Wins 2
Draws 0
Losses 5
White 3
Black 4
White wins 0
Black wins 2
Score 2
Percent 28.6
Dp -182.1
AOR 1331.3
Performance 1149.1
Game statistics ()
Games 47
Wins 19
Draws 2
Losses 26
White 24
Black 23
White wins 8
Black wins 11
Score 20
Percent 42.6
Dp -63.3
AOR 1286.2
Performance 1222.9
Game statistics (History)
Games 239
Wins 93
Draws 9
Losses 137
White 123
Black 116
White wins 47
Black wins 46
Score 97.5
Percent 40.8
Dp -78.2
AOR 1250.5
Performance 1172.3
Rankings (Main)
National
Overall 8254
Gender 1614
Age group 980
Gender/Age 241
Provincial
Overall 2892
Gender 586
Age group 354
Gender/Age 85
Regional
Overall 938
Gender 189
Age group 102
Gender/Age 23
Rankings (Standard)
National
Overall 7731
Gender 1627
Age group 972
Gender/Age 256
Provincial
Overall 2852
Gender 612
Age group 362
Gender/Age 95
Regional
Overall 1009
Gender 212
Age group 118
Gender/Age 28
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 7
Score 2
Percent 28.6
Aor 1331.3
Dp -182.1
Prat 1149.1
Performance ()
Games 47
Score 20
Percent 42.6
Aor 1286.2
Dp -63.3
Prat 1222.9
Performance (12 months)
Games 67
Score 28
Percent 41.8
Aor 1301.1
Dp -69.8
Prat 1231.4
Performance (History)
Games 239
Score 97.5
Percent 40.8
Aor 1250.5
Dp -78.2
Prat 1172.3
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Grobbelaar, M (Mari) 7 6 1 2023 Gauteng Noord (F) 2026 AHS Chess Tournament (U12) Details
Overall 2 Dixon, G (Genevieve) 6 2 4 2024 Mid Gauteng Open Chess Tournament (U10) 2026 Silver Lakes Open Chess Tournament (U12) Details
Overall 3 Westermann, I (Inge) 6 2 4 2024 Gauteng North School District Individual Championships - D1 (U9 Girls) 2026 PBHS Open (U12) Details
Overall 4 Kgwale, K (Keratilwe) 5 4 1 2024 KSNG CHess Academy Open Tournament (E) 2025 Elise Steenkamp Open Chess Tournament (Knight) Details
Overall 5 Zhang, Y (Yufeng) 4 2 2 2024 Piet Robbertse Open Chess Tournament (E) 2025 Tshwane Chess OPEN Registration Tournament (U10) Details
Standard 1 Grobbelaar, M (Mari) 7 6 1 2023 Gauteng Noord (F) 2026 AHS Chess Tournament (U12) Details
Standard 2 Westermann, I (Inge) 6 2 4 2024 Gauteng North School District Individual Championships - D1 (U9 Girls) 2026 PBHS Open (U12) Details
Standard 3 Dixon, G (Genevieve) 6 2 4 2024 Mid Gauteng Open Chess Tournament (U10) 2026 Silver Lakes Open Chess Tournament (U12) Details
Standard 4 Kgwale, K (Keratilwe) 5 4 1 2024 KSNG CHess Academy Open Tournament (E) 2025 Elise Steenkamp Open Chess Tournament (Knight) Details
Standard 5 Nawrattel, A (Abigail) 4 2 2 2023 Gauteng Noord (F) 2026 PBHS Open (U12) Details