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Marvin Robertson

1140137570
Cape Winelands (WCW)
Personal
Main rating
Rating 1462.9
K-factor 32
Floor 985.9
Highest 1485.9 (2024-03-01)
Min/Max +/- allowed 110
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1329.3
Final +/- 0
New Rating
()
Rating 1462.9
K-factor 32
Floor 985.9
Highest 1485.9 (2024-03-01)
Min/Max +/- allowed 110.3
Standard rating
Rating 1426.9
K-factor 32
Floor 926.9
Highest 1426.9 (2025-06-01)
Min/Max +/- allowed 120
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1341
Final +/- 0
New Rating
()
Rating 1426.9
K-factor 32
Floor 926.9
Highest 1426.9 (2025-06-01)
Min/Max +/- allowed 120
Rapid rating
Rating 1497.9
K-factor 32
Floor 1047.7
Highest 1563.8 (2023-11-01)
Min/Max +/- allowed 98.7
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1315.3
Final +/- 0
New Rating
()
Rating 1497.9
K-factor 32
Floor 1047.7
Highest 1563.8 (2023-11-01)
Min/Max +/- allowed 98.7
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 WCSC Kings & Queens 2025 (Kings) Rapid 2025-11-29 2025-11-29 Cape Winelands (WCW) 6 1466.5 4 2 1427.1 0 Details
2 De Villiers PS 2025 (U12 Boys) Rapid 2025-08-16 2025-08-16 Cape Winelands (WCW) 5 1467.5 5 3.5 1450.1 0 Details
3 Western Cape Schools Individual Championship 2025 (U11 Boys) Standard 2025-05-17 2025-05-18 Cape Winelands (WCW) 6 1450.9 6 4 1541.4 0 Details
4 Brave Knights Rapid 2025 (U11) Rapid 2025-05-03 2025-05-03 Cape Winelands (WCW) 6 1450.9 6 4 1446 0 Details
5 Cape Winelands Schools Prestige 2025 (U11 Boys) Standard 2025-03-08 2025-03-08 Cape Winelands (WCW) 5 1439.8 5 4 1515.9 0 Details
6 Cape Winelands Schools - Trials 1 2025 (U11 Boys) Standard 2025-02-22 2025-02-22 Cape Winelands (WCW) 5 1432.4 5 4 1470.4 0 Details
7 Marie Delport Memorial 2025 (U12 Boys) Standard 2025-01-25 2025-01-26 Cape Winelands (WCW) 6 1409.5 6 4 1369.9 0 Details
8 Strategema Chess October 2024 (U11) Standard 2024-10-05 2024-10-05 Cape Winelands (WCW) 5 1418.8 5 2.5 1365.4 0 Details
9 De Villiers PS Tournament 2024 (U14) Standard 2024-08-17 2024-08-17 Cape Winelands (WCW) 5 1436.6 5 3 1328.1 0 Details
10 Western Cape PS Individuals Championship 2024 (U11 Boys) Standard 2024-05-04 2024-05-05 West Coast (WCU) 6 1469.3 6 3 1291 0 Details
11 Brave Knights 2024 (U11) Rapid 2024-03-16 2024-03-16 Cape Winelands (WCW) 6 1485.9 6 4 1325.5 0 Details
12 Cape Winelands Schools - Prestige 2024 (U11 Boys) Standard 2024-03-02 2024-03-02 Cape Winelands (WCW) 5 1485.9 5 4 1505.2 0 Details
13 Cape Winelands Schools - PS Trials 1 2024 (U11 Boys) Rapid 2024-02-10 2024-02-10 Cape Winelands (WCW) 6 1480 6 5 1517.5 0 Details
14 Cape Winelands - Marie Delport Memorial 2024 (U12) Rapid 2024-01-27 2024-01-27 Cape Winelands (WCW) 6 1477.7 6 4.5 1510.2 0 Details
15 2023 Western Cape Rural Cup (U10) Standard 2023-12-09 2023-12-10 Cape Winelands (WCW) 5 1473.7 4 3 1502.4 0 Details
16 Ashton Skaakmat Rapid 2023 (U9) Rapid 2023-11-18 2023-11-18 Cape Winelands (WCW) 6 1451.8 6 6 1610.4 0 Details
17 Bonnievale Open Rapid 2023 (U10) Rapid 2023-10-21 2023-10-21 Cape Winelands (WCW) 6 1445.1 6 4.5 1499.1 0 Details
18 Cape Town Junior Chess League Finals 2023 (U12A) Rapid 2023-09-16 2023-09-16 Cape Town (WCT) 7 1399.7 7 6.5 1604.4 0 Details
19 Western Cape Top Schools 2023 (U11 Mixed) Standard 2023-09-02 2023-09-03 Cape Winelands (WCW) 6 1399.7 5 3.5 1482.9 0 Details
20 CW Top Schools 2023 (U7-U11 Mixed + U11 Girls) Rapid 2023-08-26 2023-08-26 Cape Winelands (WCW) 5 1385.6 5 4.5 1481 0 Details
21 Cape Town Junior Chess League - Round 1 2023 (U12A) Rapid 2023-07-22 2023-07-22 Cape Town (WCT) 7 1360.5 6 3.5 1313.9 0 Details
22 Langeberg Top Schools 2023 (U7-U13 Mix) Rapid 2023-07-29 2023-07-29 Cape Winelands (WCW) 5 1360.5 5 5 1601.4 0 Details
23 Cape Town Junior League 2nd Qualifier 2023 (U12) Rapid 2023-06-03 2023-06-03 Cape Town (WCT) 6 1338.9 6 5 1493.9 0 Details
24 Western Cape PS Individuals 2023 (U9 Boys) Standard 2023-05-05 2023-05-06 Cape Town (WCT) 6 1314.5 6 4 1416 0 Details
25 CWIS Inaugural Chess Championships 2023 Blitz 2023-03-04 2023-03-04 Cape Winelands (WCW) 5 1278.2 5 4 1504.1 0 Details
26 Cape Winelands Schools Prestige 2023 (U9 Boys) Standard 2023-03-11 2023-03-11 Cape Winelands (WCW) 5 1278.2 5 3 1313.6 0 Details
27 Langeberg Schools Chess Trials 2023 (U9 Boys+Girls) Rapid 2023-02-11 2023-02-11 Cape Winelands (WCW) 5 1217.8 4 3.5 1455.3 0 Details
28 Cape Winelands Schools Chess - Trials 1 2023 (U9 Boys) Standard 2023-02-18 2023-02-18 Cape Winelands (WCW) 5 1217.8 5 4 1431.8 0 Details
29 Marie Delport Memorial 2023 (Open) Standard 2023-01-21 2023-01-21 Cape Winelands (WCW) 6 1257.6 5 1 1050.4 0 Details
30 McGregor Chess December Festival 2022 Standard 2022-12-10 2022-12-10 Cape Winelands (WCW) 4 1292.9 4 1 1043.8 0 Details
31 Robertson Strategema Club 2022 (U9) Standard 2022-10-29 2022-10-29 Cape Winelands (WCW) 5 1287.5 0 0 0 0 Details
32 Heritage Chess Open 2022 Standard 2022-10-01 2022-10-01 Cape Winelands (WCW) 5 1287.5 5 3 1324.2 0 Details
33 Strategema 2022 (U9) Standard 2022-09-10 2022-09-10 Cape Winelands (WCW) 5 1276.9 0 0 0 0 Details
34 Langeberg Spring Open 2022 (B) Rapid 2022-09-03 2022-09-03 Cape Winelands (WCW) 5 1276.9 5 3.5 1352.8 0 Details
35 South African Open 2022 (U12) Standard 2022-07-11 2022-07-13 Cape Town (WCT) 6 1255.6 6 3 1204.9 0 Details
36 Brave Knights Chess Festival 2022 (B) Standard 2022-07-30 2022-07-30 Cape Winelands (WCW) 5 1255.6 5 4 1428.6 0 Details
37 McGregor Open 2022 (B) Standard 2022-06-11 2022-06-11 Cape Winelands (WCW) 5 1288.8 4 1.5 1064.2 0 Details
38 Langeberg Open 2022 (Sandard) Standard 2022-06-25 2022-06-25 Cape Winelands (WCW) 5 1288.8 5 3 1286.1 0 Details
39 Western Cape Schools 2022 (U9 Boys) Standard 2022-05-28 2022-05-29 Cape Winelands (WCW) 6 1232.8 6 4 1356.3 0 Details
40 Strategema Chess Festival 2022 (U7+U9 Girls) Rapid 2022-05-14 2022-05-14 Cape Winelands (WCW) 5 1232.8 5 4 1471.8 0 Details
41 McGregor Kings Chess Festival 2022 (U7+U9) Rapid 2022-04-09 2022-04-09 Cape Winelands (WCW) 5 1239.5 4 2 1172.5 0 Details
42 Cape Winelands Schools 2022 (U9 Boys) Standard 2022-03-12 2022-03-12 Cape Winelands (WCW) 5 1208.1 5 3.5 1380.2 0 Details
43 Lanfeberg Schools Chess Trials 2022 (U7+U9) Rapid 2022-02-26 2022-02-26 Cape Winelands (WCW) 5 1200 5 4 1455 0 Details
44 Cape Winelands Open 2022 (U12) Standard 2022-02-12 2022-02-13 Cape Winelands (WCW) 6 1200 6 2 1083.7 0 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 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 (History)
Games 221
Wins 145
Draws 12
Losses 64
White 113
Black 108
White wins 78
Black wins 67
Score 151
Percent 68.3
Dp 155.8
AOR 1241.4
Performance 1397.1
Rankings (Main)
National
Overall 2228
Gender 1933
Age group 223
Gender/Age 165
Provincial
Overall 669
Gender 566
Age group 74
Gender/Age 48
Regional
Overall 98
Gender 75
Age group 11
Gender/Age 5
Rankings (Standard)
National
Overall 2525
Gender 2154
Age group 263
Gender/Age 186
Provincial
Overall 705
Gender 574
Age group 80
Gender/Age 49
Regional
Overall 98
Gender 74
Age group 9
Gender/Age 5
Rankings (Rapid)
National
Overall 325
Gender 308
Age group 33
Gender/Age 29
Provincial
Overall 161
Gender 149
Age group 21
Gender/Age 18
Regional
Overall 18
Gender 15
Age group 5
Gender/Age 4
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 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance (12 months)
Games 26
Score 17.5
Percent 67.3
Aor 1332.2
Dp 147.1
Prat 1479.3
Performance (History)
Games 221
Score 151
Percent 68.3
Aor 1241.4
Dp 155.8
Prat 1397.1
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Van Wyk, M (Micaile) 6 3 3 Cape Winelands Schools Chess - Trials 1 2023 (U9 Boys) De Villiers PS 2025 (U12 Boys) Details
Overall 2 Barends, R (Reece) 5 2 3 Cape Winelands Schools 2022 (U9 Boys) Strategema Chess October 2024 (U11) Details
Overall 3 Colyn, E (Estelanie) 4 0 4 Langeberg Schools Chess Trials 2023 (U9 Boys+Girls) Brave Knights 2024 (U11) Details
Overall 4 Koert, D (Dane) 4 2 2 McGregor Kings Chess Festival 2022 (U7+U9) Strategema Chess October 2024 (U11) Details
Overall 5 Barends, M (Matthew) 4 4 0 Strategema Chess Festival 2022 (U7+U9 Girls) South African Open 2022 (U12) Details
Standard 1 Barends, M (Matthew) 3 3 0 Langeberg Open 2022 (Sandard) South African Open 2022 (U12) Details
Standard 2 Viljoen, A (Adrihan) 2 0 2 Cape Winelands Schools - Prestige 2024 (U11 Boys) Marie Delport Memorial 2025 (U12 Boys) Details
Standard 3 Makipa, M (Michael) 2 2 0 Heritage Chess Open 2022 Cape Winelands Schools Chess - Trials 1 2023 (U9 Boys) Details
Standard 4 Beswick, C (Colby) 2 1 1 Cape Winelands Schools Chess - Trials 1 2023 (U9 Boys) Cape Winelands Schools Prestige 2023 (U9 Boys) Details
Standard 5 Donn, D (Dequin) 2 0 2 Western Cape PS Individuals Championship 2024 (U11 Boys) Western Cape Schools Individual Championship 2025 (U11 Boys) Details
Rapid 1 Van Wyk, M (Micaile) 5 2 3 Langeberg Schools Chess Trials 2023 (U9 Boys+Girls) De Villiers PS 2025 (U12 Boys) Details
Rapid 2 Colyn, E (Estelanie) 4 0 4 Langeberg Schools Chess Trials 2023 (U9 Boys+Girls) Brave Knights 2024 (U11) Details
Rapid 3 Calitz, S (Steyn) 3 1 2 Cape Town Junior League 2nd Qualifier 2023 (U12) Cape Town Junior Chess League Finals 2023 (U12A) Details
Rapid 4 Sauls, L (Lekisha) 3 1 2 Lanfeberg Schools Chess Trials 2022 (U7+U9) Langeberg Top Schools 2023 (U7-U13 Mix) Details
Rapid 5 Walters, N (Nicola) 3 2 1 Cape Town Junior League 2nd Qualifier 2023 (U12) Cape Town Junior Chess League Finals 2023 (U12A) Details