Surname or Chess SA id..
Chess SA Region AOC

PLAYER PAGE

Geoffrey Mclachlan

1120154747
Sarah Baartman (ESB)
Personal
Main rating
Rating 1707.7
K-factor 28
Floor 1207.7
Highest 1707.7 (2026-06-01)
Min/Max +/- allowed 80
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1759.4
Final +/- 0
New Rating
()
Rating 1707.7
K-factor 28
Floor 1207.7
Highest 1707.7 (2026-06-01)
Min/Max +/- allowed 80.4
Standard rating
Rating 1705.2
K-factor 28
Floor 1205.2
Highest 1705.2 (2026-06-01)
Min/Max +/- allowed 80.7
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1759.4
Final +/- 0
New Rating
()
Rating 1705.2
K-factor 28
Floor 1205.2
Highest 1705.2 (2026-06-01)
Min/Max +/- allowed 80.7
Rapid rating
Rating 1282
K-factor 36
Floor 800.5
Highest 1447.7 (2024-06-01)
Min/Max +/- allowed 116.5
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1282
K-factor 36
Floor 800.5
Highest 1447.7 (2024-06-01)
Min/Max +/- allowed 116.5
Blitz rating
Rating 1262.8
K-factor 36
Floor 762.8
Highest 1262.8 (2026-04-01)
Min/Max +/- allowed 151.6
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1262.8
K-factor 36
Floor 762.8
Highest 1262.8 (2026-04-01)
Min/Max +/- allowed 151.6
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 SBDCA Trial 9 2026 (U16) Standard 2026-05-30 2026-05-30 Sarah Baartman (ESB) 5 1618.8 5 4.5 1745.1 16.8 Details
2 Spartans Bishops 2026 (Crowns) Standard 2026-05-01 2026-05-01 Sarah Baartman (ESB) 5 1618.8 4 4 1974.7 24.3 Details
3 Fountains Mall Open 2026 (B) Standard 2026-05-16 2026-05-17 Sarah Baartman (ESB) 7 1618.8 0 0 500 0 Details
4 Makhanda Trial 3 2026 (U16) Standard 2026-04-18 2026-04-18 Sarah Baartman (ESB) 5 1618.8 5 4.5 1713.7 9.6 Details
5 Moja Chess Extravaganza 2026 (U14) Standard 2026-04-25 2026-04-26 Cape Town (WCT) 5 1618.8 5 3.5 1643.3 2.6 Details
6 South African Junior Closed Chess Championship 2026 (U14 Open) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1602.4 9 5 1656.8 14.9 Details
7 South African Junior Closed Chess Championship 2026 (Blitz) Blitz 2026-03-31 2026-03-31 Bojanala Platina (NBR) 9 1602.4 9 6 1632.4 1.5 Details
8 Pearson Chess Festival 2026 (B) Standard 2026-02-27 2026-02-28 Nelson Mandela Bay (ENM) 5 1584.9 5 3.5 1486.2 -9 Details
9 SBDCA Trial 4 2026 (U16+U18) Standard 2026-02-14 2026-02-14 Sarah Baartman (ESB) 5 1584.9 4 3 1717.5 10.4 Details
10 SBDCA Trial 3 2026 (U16) Standard 2026-01-31 2026-01-31 Sarah Baartman (ESB) 3 1584.9 3 3 1780.9 7.6 Details
11 SBDCA Trial 1 2026 (U16+U18) Standard 2026-01-17 2026-01-17 Sarah Baartman (ESB) 5 1588.2 4 2.5 1557.5 -2.4 Details
12 2025 Mzansi Individual Championships (U14 Open) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1617.6 6 4 1609.3 -1 Details
13 2025 Mzansi Inter Provincial Team Championships (U14 Open) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1617.6 6 3 1444.5 -20.1 Details
14 Fide in the Bay 2025 (A) Standard 2025-11-29 2025-11-29 Nelson Mandela Bay (ENM) 5 1628.7 5 1.5 1541.3 -8 Details
15 Fide in the Bay 2025 (A) Rapid 2025-10-04 2025-10-04 Nelson Mandela Bay (ENM) 7 1637.6 7 3 1525.2 -6.3 Details
16 EC Closed 2025 (U14 Boys) Standard 2025-09-06 2025-09-07 Nelson Mandela Bay (ENM) 6 1636.7 6 3.5 1640.7 0.6 Details
17 UCC Championship 2025 (B) Standard 2025-07-22 2025-08-19 Nelson Mandela Bay (ENM) 5 1601.7 2 2 1706.5 4.5 Details
18 UCC Mind Over Board 2025 (B) Classical 2025-08-01 2025-08-03 Nelson Mandela Bay (ENM) 5 1601.7 5 5 1780.6 20.6 Details
19 NMBCU Closed 2025 (U14) Standard 2025-06-13 2025-06-14 Nelson Mandela Bay (ENM) 6 1611.6 6 3.5 1549.8 -7.1 Details
20 NMBCU Open 2025 (B) Standard 2025-05-23 2025-05-24 Nelson Mandela Bay (ENM) 6 1526.6 5 3.5 1528.8 -0.3 Details
21 NMBCU Trial 4 2025 (U14) Standard 2025-05-09 2025-05-10 Nelson Mandela Bay (ENM) 6 1526.6 6 4.5 1716.6 22.2 Details
22 UCC Presidential Cup 2025 (B) Standard 2025-04-08 2025-05-06 Nelson Mandela Bay (ENM) 5 1526.6 1 1 1633.3 1.5 Details
23 EC Open 2025 (U8-U14 Boys) Standard 2025-05-02 2025-05-02 Buffalo City (EBC) 7 1526.6 7 6 1724.3 30 Details
24 Karen Ashworth 2025 (A) Standard 2025-04-26 2025-04-26 Nelson Mandela Bay (ENM) 5 1526.6 4 1 1484.6 -3.5 Details
25 NMB 3rd Trials 2025 (U14) Standard 2025-04-11 2025-04-12 Nelson Mandela Bay (ENM) 6 1498.6 6 4.5 1647.2 17.4 Details
26 Rhodes Open 2025 (B) Standard 2025-03-21 2025-03-22 Sarah Baartman (ESB) 7 1559.7 6 3.5 1284.2 -34.7 Details
27 NMB 2nd Trials 2025 (U14) Standard 2025-03-07 2025-03-08 Nelson Mandela Bay (ENM) 6 1559.7 6 4 1528.8 -3.5 Details
28 Pearson High Chess Festival 2025 (C) Standard 2025-02-21 2025-02-22 Nelson Mandela Bay (ENM) 5 1518.6 5 4 1606.1 8 Details
29 NMBCH Trial 1 2025 (U14) Standard 2025-02-14 2025-02-15 Nelson Mandela Bay (ENM) 6 1518.6 6 5 1667.9 17.6 Details
30 SBD Activation Tournament 2025 (Open) Rapid 2025-01-04 2025-01-04 Sarah Baartman (ESB) 5 1533.3 5 3 1401.2 -9.2 Details
31 Mzansi Interprovincial Youth Chess Championships 2024 (U14 Open Championship) Classical 2024-12-16 2024-12-19 Capricorn (LCP) 7 1529.5 7 3.5 1550 2.6 Details
32 NMBCU Club League 2024 (B) Standard 2024-07-28 2024-09-15 Nelson Mandela Bay (ENM) 5 1481 2 2 1672.4 9.2 Details
33 NMBCU Closed 2024 (U14) Standard 2024-09-20 2024-09-21 Nelson Mandela Bay (ENM) 6 1481 6 4 1567.8 10.7 Details
34 2024 UCC Mind Over Board (B) Classical 2024-08-30 2024-09-01 Nelson Mandela Bay (ENM) 5 1481 5 4 1575.5 10.4 Details
35 NMBCU Trial 5 2024 (U14) Standard 2024-08-16 2024-08-17 Nelson Mandela Bay (ENM) 6 1483.8 6 4 1512.9 3.5 Details
36 NMB Open 2024 (B) Standard 2024-08-03 2024-08-04 Nelson Mandela Bay (ENM) 6 1483.8 6 3.5 1430.4 -6.2 Details
37 Karen Ashworth 2024 (B) Standard 2024-07-19 2024-07-20 Nelson Mandela Bay (ENM) 6 1437.9 6 5.5 1626.6 22.5 Details
38 NMBCU Trials 4 2024 (U14) Standard 2024-07-12 2024-07-13 Nelson Mandela Bay (ENM) 6 1437.9 6 4 1556.9 14.3 Details
39 Uitenhage Chess Club Rapid June 2024 Rapid 2024-06-18 2024-07-02 Nelson Mandela Bay (ENM) 6 1437.9 5 2 1309.7 -8.1 Details
40 Willow Academy 2024 (B) Rapid 2024-06-22 2024-06-22 Nelson Mandela Bay (ENM) 6 1415.5 6 4.5 1627.2 14.1 Details
41 NMBCU Trial 3 2024 (U14) Standard 2024-05-10 2024-05-11 Nelson Mandela Bay (ENM) 6 1418.2 6 3.5 1404.2 -1.7 Details
42 NMBCU Trials 2 2024 (U14) Standard 2024-04-12 2024-04-13 Nelson Mandela Bay (ENM) 6 1406.1 6 3.5 1484.4 9.1 Details
43 UCC Blitz Tournamen March 2024 Blitz 2024-03-26 2024-04-02 Nelson Mandela Bay (ENM) 6 1406.1 3 2 1340.9 -1.6 Details
44 UCC Strategic Moves 2024 (B) Standard 2024-03-08 2024-03-09 Nelson Mandela Bay (ENM) 5 1389.1 5 4 1530 13.6 Details
45 Madibaz Chess Tournament 2024 (B) Standard 2024-03-01 2024-03-02 Nelson Mandela Bay (ENM) 5 1389.1 4 2 1231.5 -12.1 Details
46 NMBCU Trials 1 2024 (U14) Standard 2024-02-16 2024-02-16 Nelson Mandela Bay (ENM) 6 1254.6 6 3 1298.1 5 Details
47 Pearson Open Chess Tournament 2024 (C) Standard 2024-02-23 2024-02-24 Nelson Mandela Bay (ENM) 5 1254.6 5 4.5 1616.2 36 Details
48 PECC Club Championship 2023 (Junior) Standard 2023-10-12 2023-11-23 Nelson Mandela Bay (ENM) 6 1214.1 4 2 1342.3 11.3 Details
49 2023 Tshwane North School District CLOSED League Championships (D3) Standard 2023-08-12 2023-08-12 Tshwane (GTP) 5 1183.3 5 3.5 1366 17.1 Details
50 NMBCU Trial 4 2023 (U12) Standard 2023-07-28 2023-07-29 Nelson Mandela Bay (ENM) 6 1161.5 6 3.5 1265.3 12.1 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 53
Wins 36
Draws 7
Losses 10
White 29
Black 24
White wins 19
Black wins 17
Score 39.5
Percent 74.5
Dp 208.5
AOR 1468.6
Performance 1677.1
Game statistics (History)
Games 268
Wins 159
Draws 37
Losses 72
White 142
Black 126
White wins 85
Black wins 74
Score 177.5
Percent 66.2
Dp 138
AOR 1397.7
Performance 1535.6
Rankings (Main)
National
Overall 512
Gender 477
Age group 41
Gender/Age 33
Provincial
Overall 47
Gender 44
Age group 9
Gender/Age 8
Regional
Overall 4
Gender 4
Age group 2
Gender/Age 2
Rankings (Standard)
National
Overall 486
Gender 453
Age group 43
Gender/Age 35
Provincial
Overall 37
Gender 34
Age group 8
Gender/Age 7
Regional
Overall 2
Gender 2
Age group 2
Gender/Age 2
Rankings (Rapid)
National
Overall 2396
Gender 1964
Age group 472
Gender/Age 368
Provincial
Overall 211
Gender 176
Age group 42
Gender/Age 36
Regional
Overall 63
Gender 51
Age group 12
Gender/Age 10
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 53
Score 39.5
Percent 74.5
Aor 1468.6
Dp 208.5
Prat 1677.1
Performance (12 months)
Games 96
Score 65
Percent 67.7
Aor 1485.4
Dp 150.5
Prat 1635.9
Performance (History)
Games 268
Score 177.5
Percent 66.2
Aor 1397.7
Dp 138
Prat 1535.6
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Arries, J (Jayde) 7 2 5 Willow Academy 2024 (B) Fide in the Bay 2025 (A) Details
Overall 2 Step, N (Nicholas) 7 3 4 NMBCH Trial 1 2025 (U14) Fide in the Bay 2025 (A) Details
Overall 3 Du Toit, H (Hayden) 6 2 4 EP Trials 3 2023 (U12) NMBCU Closed 2025 (U14) Details
Overall 4 Mangala, S (Sibonelo) 5 4 1 UCC Strategic Moves 2024 (B) Fide in the Bay 2025 (A) Details
Overall 5 Chipunza, J (Jaden) 5 3 2 NMBCH Trial 1 2025 (U14) South African Junior Closed Chess Championship 2026 (U14 Open) Details
Standard 1 Du Toit, H (Hayden) 6 2 4 EP Trials 3 2023 (U12) NMBCU Closed 2025 (U14) Details
Standard 2 Step, N (Nicholas) 6 2 4 NMBCH Trial 1 2025 (U14) Fide in the Bay 2025 (A) Details
Standard 3 Arries, J (Jayde) 5 2 3 Karen Ashworth 2024 (B) NMBCU Closed 2025 (U14) Details
Standard 4 Chipunza, J (Jaden) 5 3 2 NMBCH Trial 1 2025 (U14) South African Junior Closed Chess Championship 2026 (U14 Open) Details
Standard 5 Murray, C (Chloe) 4 1 3 NMBCU Trial 4 2023 (U12) UCC Mind Over Board 2025 (B) Details
Rapid 1 Arries, J (Jayde) 2 0 2 Willow Academy 2024 (B) Fide in the Bay 2025 (A) Details
Rapid 2 Mangala, S (Sibonelo) 2 2 0 Willow Academy 2024 (B) Fide in the Bay 2025 (A) Details