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

PLAYER PAGE

Sienna Brewis

2130136581
Eden (WEG)
Personal
Main rating
Rating 1490
K-factor 28
Floor 1113.3
Highest 1619.5 (2022-02-01)
Min/Max +/- allowed 91
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1414.7
Final +/- 0
New Rating
()
Rating 1490
K-factor 28
Floor 1113.3
Highest 1619.5 (2022-02-01)
Min/Max +/- allowed 91.2
Standard rating
Rating 1495.4
K-factor 32
Floor 1096
Highest 1628.1 (2022-02-01)
Min/Max +/- allowed 90.1
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1436.2
Final +/- 0
New Rating
()
Rating 1495.4
K-factor 32
Floor 1096
Highest 1628.1 (2022-02-01)
Min/Max +/- allowed 90.1
Rapid rating
Rating 1315.5
K-factor 36
Floor 859.2
Highest 1372.3 (2024-06-01)
Min/Max +/- allowed 129.7
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1215.4
Final +/- 0
New Rating
()
Rating 1315.5
K-factor 36
Floor 859.2
Highest 1372.3 (2024-06-01)
Min/Max +/- allowed 129.7
Blitz rating
Rating 1202.3
K-factor 36
Floor 702.3
Highest 1202.3 (2026-04-01)
Min/Max +/- allowed 165.3
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1138.1
Final +/- 0
New Rating
()
Rating 1202.3
K-factor 36
Floor 702.3
Highest 1202.3 (2026-04-01)
Min/Max +/- allowed 165.3
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 Western Cape Schools - Top Schools 2026 (U19 Mix) Standard 2026-08-29 2026-08-30 Cape Town (WCT) 6 1492.6 5 3.5 1478.4 -2.6 Details
2 Eden Top Schools 2026 (U19 Mix) Standard 2026-08-01 2026-08-01 Eden (WEG) 5 1492.6 4 2 1368.4 -15.1 Details
3 2026 WCSC PS Individual Championship (U13 Girls) Standard 2026-05-16 2026-05-17 Overberg (WOS) 6 1473.5 6 5 1681.1 34.2 Details
4 South African Junior Closed Chess Championship 2026 (U14 Girls) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1516.3 9 4 1397 -34 Details
5 South African Junior Closed Chess Championship 2026 (Blitz) Blitz 2026-03-31 2026-03-31 Bojanala Platina (NBR) 9 1516.3 9 3.5 1355.1 -8.8 Details
6 Eden Schools Trials 1 2026 (U13 Girls) Standard 2026-03-14 2026-03-14 Eden (WEG) 5 1505.4 5 3.5 1569.6 8 Details
7 George Trials 2 2026 (U13 Girls) Standard 2026-02-14 2026-02-14 Eden (WEG) 5 1499.2 5 4 1534 2.8 Details
8 George Trials 1 2026 (U13 Girls) Standard 2026-01-31 2026-01-31 Eden (WEG) 5 1499.2 4 3 1501.5 0.2 Details
9 2025 Mzansi Individual Championships (U14 Girls) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1491.1 6 3.5 1472.7 -2.4 Details
10 2025 Mzansi Inter Provincial Team Championships (U14 Girls) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1491.1 6 5 1623.3 15.6 Details
11 Eden Chess Closed 2025 (Ladies) Standard 2025-12-06 2025-12-07 Eden (WEG) 5 1491.1 4 3 1566 6.8 Details
12 Laerskool George Suid 2025 (Ope) Rapid 2025-10-25 2025-10-25 Eden (WEG) 5 1491.4 5 3 1406.2 -4.2 Details
13 HCPS Invitational Rapid Tournament 2025 (U13) Rapid 2025-10-18 2025-10-18 Eden (WEG) 6 1491 5 1.5 1371.7 -7.1 Details
14 Interclub Blitz 3 2025 Blitz 2025-07-30 2025-07-30 Eden (WEG) 6 1485.9 6 2.5 1316.1 -4.3 Details
15 George Top Schools 2025 (U15) Standard 2025-07-26 2025-07-26 Eden (WEG) 5 1485.9 4 3.5 1546.3 5 Details
16 Knysna Oyster Festival Rapid 2025 (Scholars) Rapid 2025-07-12 2025-07-12 Eden (WEG) 6 1485.9 6 3 1406.5 -6.6 Details
17 InterClub Blitz 3 2025 Blitz 2025-06-12 2025-06-12 Eden (WEG) 6 1493.1 6 1 1252.2 -6.1 Details
18 Western Cape Schools Individual Championship 2025 (U13 Girls) Standard 2025-05-17 2025-05-18 Cape Winelands (WCW) 6 1533.8 6 4.5 1558.8 3.2 Details
19 InterClub Blitz 2 2025 Blitz 2025-05-08 2025-05-08 Eden (WEG) 10 1533.8 8 0 1242.4 -11.1 Details
20 Southern Knights Rapid 2025 (B) Rapid 2025-05-03 2025-05-03 Eden (WEG) 7 1533.8 6 2 1214.3 -21.1 Details
21 Eden Chess Trials 2 2025 (U14) Standard 2025-03-15 2025-04-12 Eden (WEG) 10 1613.3 5 4 1635.5 3.2 Details
22 South African Junior Closed Chess Championships 2025 (U12 Girls) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1613.3 9 4 1286.5 -69.4 Details
23 Eden Schools Chess Trials 1 2025 (U13 Girls) Standard 2025-03-08 2025-03-08 Eden (WEG) 5 1570.7 5 5 1732.7 15.4 Details
24 George Schools Chess Trials 2 2025 (U13 Girls) Standard 2025-02-15 2025-02-15 Eden (WEG) 5 1476 5 4 1562.8 9.3 Details
25 George Schools Chess Trials 1 2025 (U13 Girls) Standard 2025-02-01 2025-02-01 Eden (WEG) 5 1476 5 4.5 1719 24.6 Details
26 George Suid Senior Skaaktoernooi 2024 Rapid 2024-10-26 2024-10-26 Eden (WEG) 5 1469.1 5 4 1552 4.3 Details
27 George Primary Top Schools 2024 (U11) Standard 2024-07-20 2024-07-20 Eden (WEG) 5 1427.1 4 3 1763.5 26.2 Details
28 Western Cape - Kings and Queens 2024 (Girls) Rapid 2024-06-08 2024-06-08 Overberg (WOS) 5 1397.9 4 3.5 1720.8 18.4 Details
29 South African Junior Closed Chess Championship 2024 (U12 Girls) Classical 2024-04-27 2024-05-01 Ekurhuleni (GE) 9 1505.2 8 2.5 1182.6 -58.6 Details
30 Western Cape PS Individuals Championship 2024 (U11 Girls) Standard 2024-05-04 2024-05-05 West Coast (WCU) 6 1505.2 6 2 1131.6 -42.2 Details
31 Eden Chess Trials 2 2024 (U12) Standard 2024-04-13 2024-04-20 Eden (WEG) 10 1485.7 10 7 1536.7 10.1 Details
32 Eden School Chess Trials 1 2024 (U11 Girls) Standard 2024-03-09 2024-03-09 Eden (WEG) 5 1415.6 5 4 1606.5 18.1 Details
33 George Schools Trials 3 2024 (U11 Girls) Standard 2024-03-02 2024-03-02 Eden (WEG) 5 1415.6 5 3.5 1526.4 11.8 Details
34 George Schools Trials 2 2024 (U11 Girls) Standard 2024-02-17 2024-02-17 Eden (WEG) 5 1410.3 5 3 1378.2 -3.7 Details
35 George Schools Trials 1 2024 (U11 Girls) Standard 2024-02-03 2024-02-03 Eden (WEG) 5 1410.3 5 4 1488.1 7.1 Details
36 Pacaltsdorp Chess Club Open 2023 (Development) Rapid 2023-08-26 2023-08-26 Eden (WEG) 6 1389.2 6 5 1543.1 13.3 Details
37 Top Schools 2023 (U13) Standard 2023-07-29 2023-07-29 Eden (WEG) 5 1434.3 4 1 1134 -23.4 Details
38 Knysna Oyster Festival 2023 (Juniors) Rapid 2023-07-01 2023-07-01 Eden (WEG) 6 1434.3 6 3.5 1376.3 -4.8 Details
39 Western Cape PS Individuals 2023 (U11 Girls) Standard 2023-05-05 2023-05-06 Cape Town (WCT) 6 1467.8 6 5 1549.6 9.8 Details
40 Eden Trials 2+3 2023 (U12) Standard 2023-04-15 2023-05-13 Eden (WEG) 10 1467.8 9 4 1286.6 -30.9 Details
41 Eden Trails 1 2023 (U11 Girls) Standard 2023-03-11 2023-03-11 Eden (WEG) 5 1478.2 5 3.5 1397.5 -6.3 Details
42 George Chess Trials 2 2023 (U11 Girls) Standard 2023-02-11 2023-02-11 Cape Town (WCT) 5 1486.4 5 4 1437.8 -5.1 Details
43 George Chess Trials 1 2023 (U11 Girls) Standard 2023-01-28 2023-01-28 Eden (WEG) 5 1443.6 5 4.5 1709.9 26.7 Details
44 George Open 2022 (C) Standard 2022-12-03 2022-12-03 Eden (WEG) 5 1478.9 5 2 1259.3 -22.1 Details
45 Mossel Bay Open 2022 (C) Rapid 2022-10-01 2022-10-01 Eden (WEG) 5 1507.7 5 2.5 1234.4 -18 Details
46 WCCA Rural Cup 2022 (U10) Standard 2022-08-13 2022-08-14 Overberg (WOS) 5 1493.6 3 3 1632.2 9 Details
47 WCCA Rural Cup Blitz 2022 Blitz 2022-07-12 2022-07-12 Overberg (WOS) 5 1507.6 5 2 1256.3 -5.4 Details
48 George Topskole 2022 (O9) Standard 2022-07-30 2022-07-30 Eden (WEG) 5 1507.6 4 3 1461 -3.5 Details
49 George Open 2022 (C) Standard 2022-06-11 2022-06-11 Eden (WEG) 5 1520.7 5 3 1444.5 -8.2 Details
50 Western Cape Schools 2022 (U9 Girls) Standard 2022-05-28 2022-05-29 Cape Winelands (WCW) 6 1396.9 6 5 1551.3 18.8 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 47
Wins 27
Draws 3
Losses 17
White 25
Black 22
White wins 17
Black wins 10
Score 28.5
Percent 60.6
Dp 90.4
AOR 1382.9
Performance 1473.3
Game statistics (History)
Games 300
Wins 179
Draws 20
Losses 101
White 150
Black 150
White wins 95
Black wins 84
Score 189
Percent 63
Dp 110.5
AOR 1342.1
Performance 1452.6
Rankings (Main)
National
Overall 2106
Gender 267
Age group 229
Gender/Age 57
Provincial
Overall 634
Gender 103
Age group 78
Gender/Age 24
Regional
Overall 140
Gender 25
Age group 26
Gender/Age 8
Rankings (Standard)
National
Overall 1844
Gender 248
Age group 207
Gender/Age 57
Provincial
Overall 535
Gender 96
Age group 72
Gender/Age 24
Regional
Overall 109
Gender 25
Age group 25
Gender/Age 9
Rankings (Rapid)
National
Overall 1870
Gender 310
Age group 381
Gender/Age 97
Provincial
Overall 798
Gender 148
Age group 163
Gender/Age 46
Regional
Overall 96
Gender 15
Age group 22
Gender/Age 6
Rankings (Blitz)
National
Overall 521
Gender 43
Age group 50
Gender/Age 8
Provincial
Overall 168
Gender 12
Age group 17
Gender/Age 3
Regional
Overall 97
Gender 6
Age group 11
Gender/Age 2
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 47
Score 28.5
Percent 60.6
Aor 1382.9
Dp 90.4
Prat 1473.3
Performance (12 months)
Games 63
Score 40
Percent 63.5
Aor 1378.7
Dp 114.7
Prat 1493.4
Performance (History)
Games 300
Score 189
Percent 63
Aor 1342.1
Dp 110.5
Prat 1452.6
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Blignaut, DC (Dane) 9 6 3 George Trials 1 2022 (U9) Eden Schools Trials 1 2026 (U13 Girls) Details
Overall 2 Cornforth, K (Kayleigh) 8 7 1 George Open 2022 (C) Eden Chess Closed 2025 (Ladies) Details
Overall 3 Le Roux, M (Melandi) 8 7 1 George Trials 1 2022 (U9) George Trials 1 2026 (U13 Girls) Details
Overall 4 Bruiners, C (Chandre) 7 3 4 George Chess Trials 1 2023 (U11 Girls) George Trials 2 2026 (U13 Girls) Details
Overall 5 Zaaiman, J (Jana) 7 1 6 George Trials 1 2022 (U9) George Schools Chess Trials 1 2025 (U13 Girls) Details
Standard 1 Blignaut, DC (Dane) 9 6 3 George Trials 1 2022 (U9) Eden Schools Trials 1 2026 (U13 Girls) Details
Standard 2 Le Roux, M (Melandi) 8 7 1 George Trials 1 2022 (U9) George Trials 1 2026 (U13 Girls) Details
Standard 3 Zaaiman, J (Jana) 7 1 6 George Trials 1 2022 (U9) George Schools Chess Trials 1 2025 (U13 Girls) Details
Standard 4 Bruiners, C (Chandre) 7 3 4 George Chess Trials 1 2023 (U11 Girls) George Trials 2 2026 (U13 Girls) Details
Standard 5 Cornforth, K (Kayleigh) 5 5 0 George Open 2022 (C) Eden Chess Closed 2025 (Ladies) Details
Rapid 1 Cornforth, K (Kayleigh) 3 2 1 Knysna Oyster Festival 2023 (Juniors) HCPS Invitational Rapid Tournament 2025 (U13) Details
Rapid 2 Kiewiet, B (B Jay) 2 1 1 Mossel Bay Open 2022 (C) Southern Knights Rapid 2025 (B) Details
Rapid 3 Brewis, F (Fox) 2 2 0 Knysna Oyster Festival 2023 (Juniors) Pacaltsdorp Chess Club Open 2023 (Development) Details
Rapid 4 Sampson, E (Eejay) 2 1 1 Mossel Bay Open 2022 (C) Southern Knights Rapid 2025 (B) Details
Rapid 5 Bam, C (Cayleb) 2 1 1 Knysna Oyster Festival 2023 (Juniors) Knysna Oyster Festival Rapid 2025 (Scholars) Details
Blitz 1 Blignaut, R (Ryno) 2 1 1 InterClub Blitz 3 2025 InterClub Blitz 3 2025 Details
Blitz 2 Simon, R (Riley) 2 1 1 InterClub Blitz 2 2025 InterClub Blitz 2 2025 Details
Blitz 3 Marner, B (Bryan Neil) 2 1 1 InterClub Blitz 3 2025 InterClub Blitz 3 2025 Details
Blitz 4 Coetzer, PWJ (Pieter Wilhelm) 2 1 1 InterClub Blitz 2 2025 InterClub Blitz 2 2025 Details
Blitz 5 Oktober, J (Jayson) 2 1 1 Interclub Blitz 3 2025 Interclub Blitz 3 2025 Details