PLAYER PAGE

Willem Van Der Merwe

1120130080
Sedibeng (GSV)
Personal
Main rating
Rating 1292.2
K-factor 32
Floor 905.2
Highest 1419.8 (2024-04-01)
Min/Max +/- allowed 121
Rating Change
()
Games 2
Score 0.5
We 1.6
SWe -0.81
Temp +/- -26
Penalties 0
Weight perform 1132.9
Final +/- -26
New Rating
()
Rating 1266.2
K-factor 32
Floor 905.2
Highest 1419.8 (2024-04-01)
Min/Max +/- allowed 121.2
Standard rating
Rating 1283.8
K-factor 32
Floor 902.3
Highest 1416.9 (2024-04-01)
Min/Max +/- allowed 121.7
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1139.4
Final +/- 0
New Rating
()
Rating 1283.8
K-factor 32
Floor 902.3
Highest 1416.9 (2024-04-01)
Min/Max +/- allowed 121.7
Rapid rating
Rating 1221.1
K-factor 36
Floor 721.1
Highest 1225.6 (2023-10-01)
Min/Max +/- allowed 159.9
Rating Change
()
Games 2
Score 0.5
We 1.56
SWe -1.06
Temp +/- -38.2
Penalties 0
Weight perform 0
Final +/- -38.2
New Rating
()
Rating 1182.8
K-factor 36
Floor 721.1
Highest 1225.6 (2023-10-01)
Min/Max +/- allowed 159.9
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
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Gauteng Top Schools Teams 2026 (U17) Rapid 2026-08-28 2026-08-28 Ekurhuleni (GE) 5 1292.2 2 0.5 807 -26 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 D7 (Sedibeng East) Schools Team Championships 2026 (U17) Rapid 2026-08-15 2026-08-15 Sedibeng (GSV) 5 1292.2 0 0 500 0 Details
2 2026 Midvaal Chess By The River Open Rapid 2026-06-26 2026-06-26 Sedibeng (GSV) 5 1292.2 0 0 500 0 Details
3 D7 Sedibeng East Individuals League 2026 (U15 Boys) Standard 2026-05-23 2026-05-23 Sedibeng (GSV) 5 1320.4 5 2 1131.7 -28.2 Details
4 Fundraiser for Philip and Anika 09 May 2026 (C) Standard 2026-05-09 2026-05-09 Sedibeng (GSV) 5 1320.4 0 0 500 0 Details
5 Gauteng Inter-Region at Emerald Resort 2025 (U14 Candidates) Standard 2025-12-06 2025-12-07 Sedibeng (GSV) 5 1326.2 5 2.5 1283.9 -3.8 Details
6 2025 Sedibeng Municipality OR Tambo Soncini Chess Finals (Boys) Rapid 2025-10-18 2025-10-18 Sedibeng (GSV) 6 1325.9 6 3 1327.8 0.1 Details
7 GDE (D7) Sedibeng East Schools 2025 (U13) Standard 2025-08-02 2025-08-02 Sedibeng (GSV) 5 1322.9 5 3 1334.6 2 Details
8 Eureka Chess Open 26 July 2025 (F) Standard 2025-07-26 2025-07-26 Sedibeng (GSV) 5 1321 5 2 1340.9 1.2 Details
9 GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U13 Boys) Standard 2025-05-24 2025-05-24 Sedibeng (GSV) 5 1318 5 3 1343.7 1.8 Details
10 Hoerskool Drie Riviere Open 08 March 2025 (D) Standard 2025-03-08 2025-03-08 Sedibeng (GSV) 5 1316.5 5 3 1332.6 1 Details
11 Laer Volkskool Open 15 Feb 2025 (D) Standard 2025-02-15 2025-02-15 Sedibeng (GSV) 5 1312 5 3 1355.5 3.7 Details
12 Afrikaans High School Open 08 Feb 2025 (D) Standard 2025-02-08 2025-02-08 Sedibeng (GSV) 5 1312 5 2 1256.8 -6.1 Details
13 Gauteng Inter-Region at UJ 2024 (U14 Candidates) Standard 2024-12-07 2024-12-08 Johannesburg Metro (GJM) 5 1281 4 1 1033.8 -20.1 Details
14 Fonteine Open 2024 (D) Standard 2024-10-19 2024-10-19 Sedibeng (GSV) 5 1333.8 5 3 1350.4 1 Details
15 NWU Vaal Chess Open 12 Oct 2024 (D) Standard 2024-10-12 2024-10-12 Sedibeng (GSV) 5 1333.8 5 2 1204.9 -13.3 Details
16 Gauteng Top Schools 2024 (U13 Open) Standard 2024-10-04 2024-10-04 Ekurhuleni (GE) 5 1333.8 5 2 1128.4 -20.7 Details
17 Sedibeng East D7 Teams Trials 2024 (U13) Standard 2024-08-03 2024-08-03 Sedibeng (GSV) 5 1363 5 2 1182.3 -18.3 Details
18 Eureka Open 27 July 2024 (F) Standard 2024-07-27 2024-07-27 Sedibeng (GSV) 5 1405.2 5 2 1126 -26.4 Details
19 Hoerskool Overvaal Chess Open 2024 (D) Standard 2024-04-20 2024-04-20 Sedibeng (GSV) 5 1321 5 4 1547.4 21.4 Details
20 Vaalpark Primary Chess Open 2024 (D) Standard 2024-04-13 2024-04-13 Sedibeng (GSV) 5 1321 5 3 1286.7 -2.5 Details
21 Valia's Open 2024 (E) Standard 2024-03-02 2024-03-02 Sedibeng (GSV) 5 1235.2 5 4 1438.7 20.7 Details
22 NG Kerk Vanderbijlpark Suid 2024 (D) Standard 2024-02-24 2024-02-24 Sedibeng (GSV) 5 1235.2 5 3 1365.3 12 Details
23 Laerskool Midvaal Chess Open Section 2024 (D) Standard 2024-02-10 2024-02-10 Sedibeng (GSV) 5 1235.2 5 3 1398.1 15.2 Details
24 2024 Gauteng Inter-Region Chess Championship (U12A) Standard 2024-01-13 2024-01-14 Tshwane (GTP) 5 1312.4 5 0 917.5 -42.8 Details
25 NWU Vaal Open 2023 (D) Standard 2023-10-14 2023-10-14 Sedibeng (GSV) 5 1314.6 5 2.5 1337.1 2.8 Details
26 Dr Pieter Hangelbroek Rapid 2023 (C) Rapid 2023-10-28 2023-10-28 Sedibeng (GSV) 5 1314.6 5 2.5 1262.3 -4.2 Details
27 Fonteine Chess Open 2023 (E) Standard 2023-09-02 2023-09-02 Sedibeng (GSV) 5 1317 4 1.5 1299.7 -1.5 Details
28 2023 Gauteng Top Schools (U11 Mixed) Standard 2023-08-18 2023-08-18 West Rand (GWR) 5 1284.4 5 2 1137.2 -13.6 Details
29 Gauteng D7 Teams 2023 (U11) Standard 2023-08-12 2023-08-12 Sedibeng (GSV) 5 1284.4 5 5 1616 31.7 Details
30 Overvaal Ope Jul 2023 (D) Standard 2023-07-22 2023-07-22 Sedibeng (GSV) 5 1309.8 5 2 1152.6 -14.6 Details
31 Eureka Open 2023 (F) Standard 2023-07-29 2023-07-29 Sedibeng (GSV) 5 1309.8 5 3 1308.5 0.7 Details
32 Valia's Chess Tournament 2023 (D) Standard 2023-05-06 2023-05-06 Sedibeng (GSV) 5 1276.9 5 3 1365.2 9.3 Details
33 Gauteng Schools D7 2023 (U11 Boys) Standard 2023-05-20 2023-05-20 Sedibeng (GSV) 5 1276.9 5 3.5 1375 9 Details
34 Overvaal Open 2023 (D) Standard 2023-04-15 2023-04-15 Sedibeng (GSV) 5 1314.8 5 2 1090.7 -21.1 Details
35 Hoerskool Drie Riviere Open 2023 (D) Standard 2023-03-11 2023-03-11 Sedibeng (GSV) 5 1282.5 5 4 1471.8 17.9 Details
36 AG Visser Open 2023 (C) Standard 2023-02-18 2023-02-18 Sedibeng (GSV) 5 1343.5 5 1.5 1002.9 -33.7 Details
37 Laerkool Midvaal Chess Open 2023 (D) Standard 2023-01-28 2023-01-28 Sedibeng (GSV) 5 1365 5 2.5 1233.7 -12 Details
38 Dr Peter Hangelbroek Open 2022 (E) Standard 2022-10-29 2022-10-29 Sedibeng (GSV) 5 1391.9 2 0.5 1008.5 -14.9 Details
39 Overvaal Open 2022 (D) Standard 2022-08-06 2022-08-06 Sedibeng (GSV) 5 1338.8 5 3 1303 -2.7 Details
40 D7 Teams 2022 (U9+U11 Mixed) Standard 2022-08-13 2022-08-13 Sedibeng (GSV) 5 1338.8 5 5 1629.6 29.2 Details
41 2022 Gauteng Schools Team Championships (U11 Open) Standard 2022-08-27 2022-08-27 Tshwane (GTP) 5 1338.8 5 3 1282.5 -6 Details
42 Eureka Open 2022 (G+H) Standard 2022-07-30 2022-07-30 Sedibeng (GSV) 5 1262.3 5 4 1496.2 22.2 Details
43 Hoerskool Overvaal 2022 (D) Standard 2022-06-11 2022-06-11 Sedibeng (GSV) 5 1183.7 5 3 1333.9 15.3 Details
44 Gaueng Schools D7 2022 (U11 Boys) Standard 2022-06-04 2022-06-04 Sedibeng (GSV) 5 1183.7 5 4 1455 25.7 Details
45 2022 Gauteng Schools Individual Chess Championship (U11 Boys) Standard 2022-06-18 2022-06-18 Ekurhuleni (GE) 5 1183.7 5 2.5 1199.7 2.2 Details
46 LS Vryheidsmonument Chess Open 2022 (D) Standard 2022-05-07 2022-05-07 Sedibeng (GSV) 5 1192.7 4 2 1129.2 -5 Details
47 Lux Deo NG Kerk Chess Open 2022 (D) Standard 2022-04-09 2022-04-09 Sedibeng (GSV) 5 1208.5 5 2 1111.3 -8.9 Details
48 Midvaal Ope 2022 (D) Standard 2022-01-29 2022-01-29 Sedibeng (GSV) 5 1190.9 5 3 1283.9 9.9 Details
49 Hoerskool Drie Riviere 2020 (F) Standard 2020-03-07 2020-03-07 Sedibeng (GSV) 5 1207.3 5 2 1107.4 -9.2 Details
50 Midvaal Chess Open 2020 (D) Standard 2020-01-25 2020-01-25 Sedibeng (GSV) 5 1200 5 3 1229.6 3.7 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 7
Wins 2
Draws 1
Losses 4
White 4
Black 3
White wins 1
Black wins 1
Score 2.5
Percent 35.7
Dp -121.4
AOR 1160.3
Performance 1038.9
Game statistics (History)
Games 232
Wins 115
Draws 20
Losses 97
White 115
Black 117
White wins 58
Black wins 57
Score 125
Percent 53.9
Dp 33
AOR 1242.9
Performance 1275.9
Rankings (Main)
National
Overall 6461
Gender 5287
Age group 1032
Gender/Age 808
Provincial
Overall 2203
Gender 1800
Age group 366
Gender/Age 278
Regional
Overall 264
Gender 222
Age group 51
Gender/Age 43
Rankings (Standard)
National
Overall 5952
Gender 4785
Age group 965
Gender/Age 750
Provincial
Overall 2132
Gender 1708
Age group 354
Gender/Age 266
Regional
Overall 248
Gender 202
Age group 44
Gender/Age 35
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 7
Score 2.5
Percent 35.7
Aor 1160.3
Dp -121.4
Prat 1038.9
Performance (12 months)
Games 12
Score 5
Percent 41.7
Aor 1211.8
Dp -70.8
Prat 1141
Performance (History)
Games 232
Score 125
Percent 53.9
Aor 1242.9
Dp 33
Prat 1275.9
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Myburgh, V (Vaughn) 5 3 2 Hoerskool Overvaal 2022 (D) NWU Vaal Open 2023 (D) Details
Overall 2 Nagel, D (Divan) 5 3 2 Gauteng Schools D7 2023 (U11 Boys) Afrikaans High School Open 08 Feb 2025 (D) Details
Overall 3 Tolmay, W (Walroux) 5 2 3 Midvaal Chess Open 2020 (D) Eureka Open 2023 (F) Details
Overall 4 Bezuidenhoudt, M (Marlo) 5 3 2 Eureka Open 2022 (G+H) Vaalpark Primary Chess Open 2024 (D) Details
Overall 5 Brand, HVN (Hendrik van Niekerk (Henko)) 5 3 2 Hoerskool Overvaal 2022 (D) 2025 Sedibeng Municipality OR Tambo Soncini Chess Finals (Boys) Details
Standard 1 Nagel, D (Divan) 5 3 2 Gauteng Schools D7 2023 (U11 Boys) Afrikaans High School Open 08 Feb 2025 (D) Details
Standard 2 Viljoen, C (Chene) 5 1 4 Lux Deo NG Kerk Chess Open 2022 (D) Overvaal Open 2022 (D) Details
Standard 3 Tolmay, W (Walroux) 5 2 3 Midvaal Chess Open 2020 (D) Eureka Open 2023 (F) Details
Standard 4 Myburgh, V (Vaughn) 5 3 2 Hoerskool Overvaal 2022 (D) NWU Vaal Open 2023 (D) Details
Standard 5 Bezuidenhoudt, M (Marlo) 4 2 2 Eureka Open 2022 (G+H) Vaalpark Primary Chess Open 2024 (D) Details