Surname or Chess SA id..
Chess SA Region AOC

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Geoffrey Mclachlan

1120154747
Sarah Baartman (ESB)
Personal
Main rating
Rating 1602.4
K-factor 28
Floor 1137.5
Highest 1637.5 (2025-09-30)
Min/Max +/- allowed 89
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1561.8
Final +/- 0
New Rating
()
Rating 1602.4
K-factor 28
Floor 1137.5
Highest 1637.5 (2025-09-30)
Min/Max +/- allowed 88.9
Standard rating
Rating 1601.5
K-factor 28
Floor 1139.6
Highest 1639.6 (2025-09-30)
Min/Max +/- allowed 88.6
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1561.8
Final +/- 0
New Rating
()
Rating 1601.5
K-factor 28
Floor 1139.6
Highest 1639.6 (2025-09-30)
Min/Max +/- allowed 88.6
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 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 Pearson Chess Festival 2026 (B) Standard 2026-02-27 2026-02-28 Nelson Mandela Bay (ENM) 5 1584.9 5 3.5 1486.2 0 Details
2 SBDCA Trial 4 2026 (U16+U18) Standard 2026-02-14 2026-02-14 Sarah Baartman (ESB) 5 1584.9 4 3 1717.5 0 Details
3 SBDCA Trial 3 2026 (U16) Standard 2026-01-31 2026-01-31 Sarah Baartman (ESB) 3 1584.9 3 3 1780.9 0 Details
4 SBDCA Trial 1 2026 (U16+U18) Standard 2026-01-17 2026-01-17 Sarah Baartman (ESB) 5 1588.2 4 2.5 1557.5 0 Details
5 2025 Mzansi Individual Championships (U14 Open) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1617.6 6 4 1609.3 0 Details
6 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 0 Details
7 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 0 Details
8 Fide in the Bay 2025 (A) Rapid 2025-10-04 2025-10-04 Nelson Mandela Bay (ENM) 7 1637.6 7 3 1525.2 0 Details
9 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 Details
10 UCC Championship 2025 (B) Standard 2025-07-22 2025-08-19 Nelson Mandela Bay (ENM) 5 1601.7 2 2 1706.5 0 Details
11 UCC Mind Over Board 2025 (B) Classical 2025-08-01 2025-08-03 Nelson Mandela Bay (ENM) 5 1601.7 5 5 1780.6 0 Details
12 NMBCU Closed 2025 (U14) Standard 2025-06-13 2025-06-14 Nelson Mandela Bay (ENM) 6 1611.6 6 3.5 1549.8 0 Details
13 NMBCU Open 2025 (B) Standard 2025-05-23 2025-05-24 Nelson Mandela Bay (ENM) 6 1526.6 5 3.5 1528.8 0 Details
14 NMBCU Trial 4 2025 (U14) Standard 2025-05-09 2025-05-10 Nelson Mandela Bay (ENM) 6 1526.6 6 4.5 1716.6 0 Details
15 UCC Presidential Cup 2025 (B) Standard 2025-04-08 2025-05-06 Nelson Mandela Bay (ENM) 5 1526.6 1 1 1633.3 0 Details
16 EC Open 2025 (U8-U14 Boys) Standard 2025-05-02 2025-05-02 Buffalo City (EBC) 7 1526.6 7 6 1724.3 0 Details
17 Karen Ashworth 2025 (A) Standard 2025-04-26 2025-04-26 Nelson Mandela Bay (ENM) 5 1526.6 4 1 1484.6 0 Details
18 NMB 3rd Trials 2025 (U14) Standard 2025-04-11 2025-04-12 Nelson Mandela Bay (ENM) 6 1498.6 6 4.5 1647.2 0 Details
19 Rhodes Open 2025 (B) Standard 2025-03-21 2025-03-22 Sarah Baartman (ESB) 7 1559.7 6 3.5 1284.2 0 Details
20 NMB 2nd Trials 2025 (U14) Standard 2025-03-07 2025-03-08 Nelson Mandela Bay (ENM) 6 1559.7 6 4 1528.8 0 Details
21 Pearson High Chess Festival 2025 (C) Standard 2025-02-21 2025-02-22 Nelson Mandela Bay (ENM) 5 1518.6 5 4 1606.1 0 Details
22 NMBCH Trial 1 2025 (U14) Standard 2025-02-14 2025-02-15 Nelson Mandela Bay (ENM) 6 1518.6 6 5 1667.9 0 Details
23 SBD Activation Tournament 2025 (Open) Rapid 2025-01-04 2025-01-04 Sarah Baartman (ESB) 5 1533.3 5 3 1401.2 0 Details
24 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 0 Details
25 NMBCU Club League 2024 (B) Standard 2024-07-28 2024-09-15 Nelson Mandela Bay (ENM) 5 1481 2 2 1672.4 0 Details
26 NMBCU Closed 2024 (U14) Standard 2024-09-20 2024-09-21 Nelson Mandela Bay (ENM) 6 1481 6 4 1567.8 0 Details
27 2024 UCC Mind Over Board (B) Classical 2024-08-30 2024-09-01 Nelson Mandela Bay (ENM) 5 1481 5 4 1575.5 0 Details
28 NMBCU Trial 5 2024 (U14) Standard 2024-08-16 2024-08-17 Nelson Mandela Bay (ENM) 6 1483.8 6 4 1512.9 0 Details
29 NMB Open 2024 (B) Standard 2024-08-03 2024-08-04 Nelson Mandela Bay (ENM) 6 1483.8 6 3.5 1430.4 0 Details
30 Karen Ashworth 2024 (B) Standard 2024-07-19 2024-07-20 Nelson Mandela Bay (ENM) 6 1437.9 6 5.5 1626.6 0 Details
31 NMBCU Trials 4 2024 (U14) Standard 2024-07-12 2024-07-13 Nelson Mandela Bay (ENM) 6 1437.9 6 4 1556.9 0 Details
32 Uitenhage Chess Club Rapid June 2024 Rapid 2024-06-18 2024-07-02 Nelson Mandela Bay (ENM) 6 1437.9 5 2 1309.7 0 Details
33 Willow Academy 2024 (B) Rapid 2024-06-22 2024-06-22 Nelson Mandela Bay (ENM) 6 1415.5 6 4.5 1627.2 0 Details
34 NMBCU Trial 3 2024 (U14) Standard 2024-05-10 2024-05-11 Nelson Mandela Bay (ENM) 6 1418.2 6 3.5 1404.2 0 Details
35 NMBCU Trials 2 2024 (U14) Standard 2024-04-12 2024-04-13 Nelson Mandela Bay (ENM) 6 1406.1 6 3.5 1484.4 0 Details
36 UCC Blitz Tournamen March 2024 Blitz 2024-03-26 2024-04-02 Nelson Mandela Bay (ENM) 6 1406.1 3 2 1340.9 0 Details
37 UCC Strategic Moves 2024 (B) Standard 2024-03-08 2024-03-09 Nelson Mandela Bay (ENM) 5 1389.1 5 4 1530 0 Details
38 Madibaz Chess Tournament 2024 (B) Standard 2024-03-01 2024-03-02 Nelson Mandela Bay (ENM) 5 1389.1 4 2 1231.5 0 Details
39 NMBCU Trials 1 2024 (U14) Standard 2024-02-16 2024-02-16 Nelson Mandela Bay (ENM) 6 1254.6 6 3 1298.1 0 Details
40 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 0 Details
41 PECC Club Championship 2023 (Junior) Standard 2023-10-12 2023-11-23 Nelson Mandela Bay (ENM) 6 1214.1 4 2 1342.3 0 Details
42 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 0 Details
43 NMBCU Trial 4 2023 (U12) Standard 2023-07-28 2023-07-29 Nelson Mandela Bay (ENM) 6 1161.5 6 3.5 1265.3 0 Details
44 2023 Tshwane North School District CLOSED Individual Championships (D3) Standard 2023-05-13 2023-05-13 Tshwane (GTP) 5 1200 5 3 1285 0 Details
45 EP Trials 3 2023 (U12) Standard 2023-05-05 2023-05-06 Nelson Mandela Bay (ENM) 6 1200 5 1 908.5 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 16
Wins 11
Draws 2
Losses 3
White 8
Black 8
White wins 6
Black wins 5
Score 12
Percent 75
Dp 212.5
AOR 1404.6
Performance 1617.1
Game statistics (History)
Games 231
Wins 134
Draws 32
Losses 65
White 121
Black 110
White wins 72
Black wins 62
Score 150
Percent 64.9
Dp 126.9
AOR 1381.9
Performance 1508.8
Rankings (Main)
National
Overall 961
Gender 886
Age group 98
Gender/Age 83
Provincial
Overall 88
Gender 81
Age group 17
Gender/Age 15
Regional
Overall 10
Gender 10
Age group 4
Gender/Age 4
Rankings (Standard)
National
Overall 884
Gender 813
Age group 95
Gender/Age 80
Provincial
Overall 82
Gender 76
Age group 17
Gender/Age 15
Regional
Overall 10
Gender 10
Age group 4
Gender/Age 4
Rankings (Rapid)
National
Overall 2285
Gender 1864
Age group 493
Gender/Age 377
Provincial
Overall 221
Gender 190
Age group 39
Gender/Age 35
Regional
Overall 76
Gender 63
Age group 14
Gender/Age 13
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 16
Score 12
Percent 75
Aor 1404.6
Dp 212.5
Prat 1617.1
Performance (12 months)
Games 100
Score 65.5
Percent 65.5
Aor 1452.1
Dp 131.8
Prat 1583.8
Performance (History)
Games 231
Score 150
Percent 64.9
Aor 1381.9
Dp 126.9
Prat 1508.8
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Step, N (Nicholas) 7 3 4 NMBCH Trial 1 2025 (U14) Fide in the Bay 2025 (A) Details
Overall 2 Arries, J (Jayde) 7 2 5 Willow Academy 2024 (B) 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 Murray, C (Chloe) 5 2 3 NMBCU Trial 4 2023 (U12) Fide in the Bay 2025 (A) Details
Overall 5 Mangala, S (Sibonelo) 5 4 1 UCC Strategic Moves 2024 (B) Fide in the Bay 2025 (A) 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 Ackerdien, S (Saud) 4 1 3 PECC Club Championship 2023 (Junior) Fide in the Bay 2025 (A) Details
Standard 5 Prinsloo, L (Liam) 4 3 1 Karen Ashworth 2024 (B) UCC Mind Over Board 2025 (B) Details
Rapid 1 Mangala, S (Sibonelo) 2 2 0 Willow Academy 2024 (B) Fide in the Bay 2025 (A) Details
Rapid 2 Arries, J (Jayde) 2 0 2 Willow Academy 2024 (B) Fide in the Bay 2025 (A) Details