Surname or Chess SA id..
Chess SA Region AOC Mzansi 2026

PLAYER PAGE

Pieter Mostert

1100109067
Bojanala Platina (NBR)
Personal
Main rating
Rating 1266.3
K-factor 36
Floor 848.8
Highest 1359.9 (2022-11-01)
Min/Max +/- allowed 132
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1158.7
Final +/- 0
New Rating
()
Rating 1266.3
K-factor 36
Floor 848.8
Highest 1359.9 (2022-11-01)
Min/Max +/- allowed 132
Standard rating
Rating 1210.1
K-factor 36
Floor 850.3
Highest 1360.5 (2022-11-01)
Min/Max +/- allowed 131.9
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 959.5
Final +/- 0
New Rating
()
Rating 1210.1
K-factor 36
Floor 850.3
Highest 1360.5 (2022-11-01)
Min/Max +/- allowed 131.9
Rapid rating
Rating 1261.3
K-factor 36
Floor 761.3
Highest 1261.3 (2026-09-01)
Min/Max +/- allowed 151.9
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1261.3
K-factor 36
Floor 761.3
Highest 1261.3 (2026-09-01)
Min/Max +/- allowed 151.9
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
No tournaments found.
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Bojanala's Clash Of Schools 2026 (Open) Rapid 2026-08-08 2026-08-08 Bojanala Platina (NBR) 5 1266.3 5 4 1307.7 10.9 Details
2 Bojanala's Schoemies Open 2026 (Bishops) Standard 2026-04-18 2026-04-18 Bojanala Platina (NBR) 5 1282 5 2 1137.1 -26.6 Details
3 Bojanala's Clash Of Schools 2025 (High School B) Rapid 2025-08-02 2025-08-02 Bojanala Platina (NBR) 5 1230.1 5 5 1585.6 28.8 Details
4 Bojanala Circuit Championships 1 of 4 2025 (U16) Standard 2025-03-01 2025-03-01 Bojanala Platina (NBR) 5 1232.4 4 1 1174.9 -4.6 Details
5 Bojanala's Clash Of Schools - Secondary 2024 (High School Seniors) Rapid 2024-07-27 2024-07-27 Bojanala Platina (NBR) 5 1228.3 5 3 1160.9 -4.2 Details
6 Bojanala Closed Chess Championships Stage 1 2024 (U16) Standard 2024-01-27 2024-01-27 Bojanala Platina (NBR) 5 1242.3 4 1 1143.2 -7.8 Details
7 West Rand vs Bojanala Inter-Regional Championships 2023 (U14) Standard 2023-10-14 2023-10-14 West Rand (GWR) 5 1283.8 5 1 1041.6 -22.9 Details
8 Bojanala's Battle Of Mount Cambridge 2023 (Knights) Standard 2023-09-16 2023-09-16 Bojanala Platina (NBR) 5 1266.5 5 3 1373.8 9.8 Details
9 Bojanala's Spring Cleaning 2023 (Rooks) Standard 2023-08-26 2023-08-26 Bojanala Platina (NBR) 5 1299 5 2 1203.2 -8.6 Details
10 Bojanala School League 2023 (Primary School Open) Rapid 2023-08-19 2023-08-19 Bojanala Platina (NBR) 5 1299 5 2 1179.9 -9.3 Details
11 Bojanala's FIDE in the Sparkling Waters 2023 (Rooks) Classical 2023-07-28 2023-07-30 Bojanala Platina (NBR) 6 1309.1 6 2.5 1270.3 -5.6 Details
12 Olienpark - 2nd One for the Ages 2023 (U14) Standard 2023-05-13 2023-05-13 Bojanala Platina (NBR) 5 1318.7 5 2.5 1271.8 -5.1 Details
13 Grenswag's Community Battle 2023 (Rooks) Standard 2023-04-22 2023-04-22 Bojanala Platina (NBR) 5 1332.7 4 1 1146.6 -14.6 Details
14 Schoemies Kings & Queens 2023 (Rooks) Standard 2023-03-18 2023-03-18 Bojanala Platina (NBR) 5 1329.3 5 1.5 1068.6 -26.1 Details
15 Nories Make It Happen 2023 (Rooks) Standard 2023-03-04 2023-03-04 Bojanala Platina (NBR) 5 1329.3 5 3 1447.2 10.9 Details
16 One For The Ages 2023 (U14) Standard 2023-02-18 2023-02-18 Bojanala Platina (NBR) 5 1341.6 5 3 1278.8 -6.6 Details
17 Harties Wolf Pack 2023 (Rooks) Standard 2023-01-21 2023-01-21 Bojanala Platina (NBR) 5 1343.4 5 3 1341.4 -0.8 Details
18 2022 South African Junior Team Chess Championships (U14 Open) Classical 2022-12-04 2022-12-08 4 Knights (4K) 7 1348.8 6 4 1324.5 -3.2 Details
19 West Rand vs Bojanala 2022 (U14B) Standard 2022-11-05 2022-11-05 Bojanala Platina (NBR) 5 1344.3 5 3 1378.5 2.7 Details
20 FIDE at The King`s Gate 2.0 2022 (Junior) Standard 2022-10-22 2022-10-22 Bojanala Platina (NBR) 5 1267.9 5 4 1519.8 28.7 Details
21 Bojanala SAJCC Trials 2022 (U14) Classical 2022-09-23 2022-09-23 Bojanala Platina (NBR) 5 1288.4 5 2 1198.4 -11.4 Details
22 Bojanala Chess Federation Wildcards 2022 (Knights) Standard 2022-08-20 2022-08-20 Bojanala Platina (NBR) 5 1252.8 5 4 1393 13.3 Details
23 Bojanala Chess Federation Clash of Schools 2022 (PS Championship) Standard 2022-07-22 2022-07-22 Bojanala Platina (NBR) 5 1252.8 5 4 1489.7 22.4 Details
24 2nd One For The Ages 2022 (U14) Standard 2022-07-30 2022-07-30 Bojanala Platina (NBR) 5 1252.8 4 2 1213.6 -3 Details
25 One For The Ages 2022 (U14) Standard 2022-07-16 2022-07-16 Bojanala Platina (NBR) 5 1252.8 4 1 1005 -19.3 Details
26 RHS Know Thyself 2022 (C) Standard 2022-04-23 2022-04-23 Bojanala Platina (NBR) 5 1251.9 5 3 1263.3 0.5 Details
27 Lebone II 2022 (C) Standard 2022-02-12 2022-02-12 Bojanala Platina (NBR) 5 1252.5 5 3 1255.1 -0.3 Details
28 The Meridian 2022 (U14) Standard 2022-01-22 2022-01-22 Bojanala Platina (NBR) 5 1238.6 5 3 1322.9 7.6 Details
29 Back to the Board 2021 (U12) Standard 2021-04-17 2021-04-17 Bojanala Platina (NBR) 5 1226.1 5 3 1288.8 6.8 Details
30 Hoerskool Brits Toernooi 2020 (U12) Standard 2020-03-14 2020-03-14 Bojanala Platina (NBR) 5 1257.5 5 2.5 1064.8 -17.4 Details
31 Lebone II 2020 (U12) Standard 2020-02-15 2020-02-15 Bojanala Platina (NBR) 5 1249.7 5 3 1301.6 4.5 Details
32 2019 South African Junior Team Championships (U10A) Classical 2020-01-04 2020-01-08 4 Knights (4K) 7 1328.5 7 2 1069 -43.4 Details
33 NW Open 2019 (U10) Standard 2019-10-12 2019-10-12 Bojanala Platina (NBR) 5 1294.1 5 3 1249.4 -5 Details
34 Inter Region 2019 (U10 Open) Standard 2019-10-19 2019-10-19 Bojanala Platina (NBR) 5 1294.1 5 3 1377.5 8.8 Details
35 Lebone II 2019 (U10) Standard 2019-09-14 2019-09-14 Bojanala Platina (NBR) 5 1216.8 5 4 1534.5 31.7 Details
36 Laerskool Brits 2019 (U10) Standard 2019-08-31 2019-08-31 Bojanala Platina (NBR) 5 1216.5 5 3 1210.3 0.2 Details
37 Grenville 2019 (U10) Standard 2019-06-08 2019-06-08 Bojanala Platina (NBR) 5 1201.9 5 3 1274 7.8 Details
38 Inter Regional Chess Championship 2019 (U10) Standard 2019-05-10 2019-05-11 Mangaung (FMB) 5 1174.7 5 4 1484 30.9 Details
39 Laerskool Proteapark 2019 (C) Standard 2019-05-18 2019-05-18 Bojanala Platina (NBR) 5 1174.7 5 2 1002.3 -17.4 Details
40 Hoerskool Rustenburg Skaak 2019 (U10) Standard 2019-04-13 2019-04-13 Bojanala Platina (NBR) 5 1125.6 5 4 1369.1 24.4 Details
41 Laerskool Vastrap Tournament 2019 (E) Standard 2019-02-23 2019-02-23 Bojanala Platina (NBR) 5 1200 5 3.5 984.1 -6.6 Details
42 Fields College Open 2019 (U10) Standard 2019-02-02 2019-02-02 Bojanala Platina (NBR) 5 1200 4 1 809.4 -30.4 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 10
Wins 6
Draws 0
Losses 4
White 6
Black 4
White wins 4
Black wins 2
Score 6
Percent 60
Dp 85
AOR 1137.4
Performance 1222.4
Game statistics (History)
Games 208
Wins 112
Draws 5
Losses 91
White 108
Black 100
White wins 62
Black wins 50
Score 114.5
Percent 55
Dp 42.9
AOR 1211
Performance 1253.9
Rankings (Main)
National
Overall 7740
Gender 6260
Age group 1173
Gender/Age 934
Provincial
Overall 473
Gender 397
Age group 55
Gender/Age 46
Regional
Overall 283
Gender 234
Age group 34
Gender/Age 29
Rankings (Standard)
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 (Rapid)
National
Overall 2878
Gender 2331
Age group 373
Gender/Age 298
Provincial
Overall 111
Gender 92
Age group 18
Gender/Age 16
Regional
Overall 104
Gender 85
Age group 18
Gender/Age 16
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 10
Score 6
Percent 60
Aor 1137.4
Dp 85
Prat 1222.4
Performance (12 months)
Games 10
Score 6
Percent 60
Aor 1137.4
Dp 85
Prat 1222.4
Performance (History)
Games 208
Score 114.5
Percent 55
Aor 1211
Dp 42.9
Prat 1253.9
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Bantseke, B (Boikanyo) 5 2 3 Grenville 2019 (U10) Nories Make It Happen 2023 (Rooks) Details
Overall 2 Morkel, DJ (Douglas Jonathan) 5 3 2 Fields College Open 2019 (U10) Bojanala School League 2023 (Primary School Open) Details
Overall 3 Changara, A (Adrian Tafara) 4 1 3 RHS Know Thyself 2022 (C) Nories Make It Happen 2023 (Rooks) Details
Overall 4 Van Der Berg, KW (Kai Willem) 4 4 0 Laerskool Proteapark 2019 (C) Bojanala's FIDE in the Sparkling Waters 2023 (Rooks) Details
Overall 5 Letupu, L (Lemogang) 4 2 2 The Meridian 2022 (U14) Bojanala SAJCC Trials 2022 (U14) Details
Standard 1 Bantseke, B (Boikanyo) 5 2 3 Grenville 2019 (U10) Nories Make It Happen 2023 (Rooks) Details
Standard 2 Morkel, DJ (Douglas Jonathan) 4 3 1 Fields College Open 2019 (U10) Bojanala Chess Federation Clash of Schools 2022 (PS Championship) Details
Standard 3 Pedersen, J (Jj) 4 3 1 Laerskool Vastrap Tournament 2019 (E) Bojanala SAJCC Trials 2022 (U14) Details
Standard 4 Van Der Berg, KW (Kai Willem) 4 4 0 Laerskool Proteapark 2019 (C) Bojanala's FIDE in the Sparkling Waters 2023 (Rooks) Details
Standard 5 Legwale, L (Lesedi) 4 1 3 Laerskool Proteapark 2019 (C) Bojanala's FIDE in the Sparkling Waters 2023 (Rooks) Details