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David Charles Mendelsohn

155022650
Johannesburg Metro (GJM)
Personal
Main rating
Rating 1660.4
K-factor 24
Floor 1353.5
Highest 1853.5 (2018-03-01)
Min/Max +/- allowed 65
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1560.5
Final +/- 0
New Rating
()
Rating 1660.4
K-factor 24
Floor 1353.5
Highest 1853.5 (2018-03-01)
Min/Max +/- allowed 65.4
Standard rating
Rating 1676.3
K-factor 24
Floor 1353.5
Highest 1853.5 (2018-03-01)
Min/Max +/- allowed 65.4
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1630.3
Final +/- 0
New Rating
()
Rating 1676.3
K-factor 24
Floor 1353.5
Highest 1853.5 (2018-03-01)
Min/Max +/- allowed 65.4
Rapid rating
Rating 1784.3
K-factor 24
Floor 1353.5
Highest 1853.5 (2018-03-01)
Min/Max +/- allowed 65.4
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1784.3
K-factor 24
Floor 1353.5
Highest 1853.5 (2018-03-01)
Min/Max +/- allowed 65.4
Blitz rating
Rating 1853.5
K-factor 24
Floor 1353.5
Highest 1853.5 (2019-09-01)
Min/Max +/- allowed 65.4
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1853.5
K-factor 24
Floor 1353.5
Highest 1853.5 (2019-09-01)
Min/Max +/- allowed 65.4
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 Randburg Chess Club New Year Rapid 2026 Rapid 2026-01-27 2026-02-03 Johannesburg Metro (GJM) 6 1676.1 3 2 1501.2 0 Details
2 MCA Tshwane Welcome 2026 (A) Standard 2026-01-24 2026-01-24 Tshwane (GTP) 5 1676.1 4 1.5 1726 0 Details
3 2026 JMC Kick off Tournament (A) Standard 2026-02-01 2026-02-01 Johannesburg Metro (GJM) 5 1676.1 0 0 0 0 Details
4 Chess Power House Dec Rapid 2025 (A) Rapid 2025-12-16 2025-12-16 Johannesburg Metro (GJM) 5 1687.3 5 2 1462.5 0 Details
5 Randburg Winter Swiss 2025 Standard 2025-07-29 2025-09-16 Johannesburg Metro (GJM) 8 1687.3 8 3 1484.5 0 Details
6 Chess Power House Aug Open 2025 (Prestige) Standard 2025-08-16 2025-08-16 Ekurhuleni (GE) 5 1672.9 4 1.5 1839.7 0 Details
7 JMC - Trinity Randpark Ridge 2025 (A) Standard 2025-07-26 2025-07-26 Johannesburg Metro (GJM) 5 1701.3 4 2 1829 0 Details
8 Randburg Chess Club Winter Rapid 2025 Rapid 2025-07-15 2025-07-22 Johannesburg Metro (GJM) 6 1701.3 6 1.5 1261.5 0 Details
9 Neil Savage Memorial Randburg Club Champs 2025 Standard 2025-05-06 2025-06-24 Johannesburg Metro (GJM) 8 1692.2 8 4.5 1735.1 0 Details
10 CPH May 2025 (A) Standard 2025-05-03 2025-05-03 Johannesburg Metro (GJM) 5 1709.9 4 0.5 1523.2 0 Details
11 Randburg Chess Club New Year Swiss 2025 Standard 2025-02-11 2025-04-01 Johannesburg Metro (GJM) 8 1700.3 7 4.5 1756.2 0 Details
12 Chess Power House March Open 2025 (A) Standard 2025-03-22 2025-03-22 Johannesburg Metro (GJM) 5 1674 5 3 1820.7 0 Details
13 Gauteng Inter-Region at UJ 2024 (Adult+Senior) Standard 2024-12-07 2024-12-08 Johannesburg Metro (GJM) 5 1669.5 5 3 1709.4 0 Details
14 Randburg Summer Swiss 2024 Standard 2024-10-29 2024-11-26 Johannesburg Metro (GJM) 5 1663 5 3 1710.4 0 Details
15 Mzansi Summer Rapid 2024 (A) Rapid 2024-10-26 2024-10-26 Johannesburg Metro (GJM) 6 1615.6 5 3 1829 0 Details
16 Randburg Spring Swiss 2024 Standard 2024-08-20 2024-10-08 Johannesburg Metro (GJM) 7 1615.6 7 5.5 1769.3 0 Details
17 Randburg Chess Club Winter Swiss 2024 Standard 2024-06-11 2024-07-30 Johannesburg Metro (GJM) 7 1618.5 6 3.5 1598.9 0 Details
18 Chess Power House July Open 2024 (A) Standard 2024-07-20 2024-07-20 Johannesburg Metro (GJM) 5 1641.4 5 1 1322.9 0 Details
19 JMC Trinityhouse Randpark Ridge 2024 (A) Standard 2024-07-13 2024-07-13 Johannesburg Metro (GJM) 5 1641.4 5 2 1765.3 0 Details
20 Randburg Chess Club Championship 2024 Standard 2024-04-09 2024-05-21 Johannesburg Metro (GJM) 7 1645.9 7 4.5 1626.6 0 Details
21 1st Knights Open Tournament 2024 (A) Standard 2024-03-23 2024-03-23 Johannesburg Metro (GJM) 5 1640 0 0 0 0 Details
22 Randburg Chess Club New Year Swiss 2024 Standard 2024-02-06 2024-02-06 Johannesburg Metro (GJM) 7 1640 7 4 1664.8 0 Details
23 Africawide Chess Championship 2023 (Open) Standard 2023-11-03 2023-11-05 Johannesburg Metro (GJM) 7 1621.4 7 4 1581.4 0 Details
24 Randburg Club Championships Swiss 2023 Standard 2023-08-29 2023-10-10 Johannesburg Metro (GJM) 7 1662.2 6 2.5 1403.4 0 Details
25 Randburg Winter Swiss 2023 Standard 2023-06-13 2023-07-25 Johannesburg Metro (GJM) 7 1643.2 7 5 1746.4 0 Details
26 Randburg Autumn Swiss 2023 Standard 2023-04-11 2023-05-23 Johannesburg Metro (GJM) 7 1638.2 5 3 1659.5 0 Details
27 Randburg New Year Swiss 2023 Standard 2023-01-31 2023-03-14 Johannesburg Metro (GJM) 7 1623.7 7 5 1744.8 0 Details
28 JMC 1 St Peters 2023 (A) Standard 2023-03-18 2023-03-18 Johannesburg Metro (GJM) 5 1623.7 5 2 1538.3 0 Details
29 Randburg Summer Swiss 2022 Standard 2022-10-25 2022-12-06 Johannesburg Metro (GJM) 7 1628.4 6 4 1502.5 0 Details
30 Randburg Club Championships Swiss 2022 Standard 2022-07-19 2022-09-06 Johannesburg Metro (GJM) 7 1621.9 7 5.5 1559.5 0 Details
31 Chessheroes Youth Day 2022 (A1) Classical 2022-06-16 2022-06-18 Johannesburg Metro (GJM) 5 1653.6 4 0 1357 0 Details
32 2021 Lubowski Open Tournament (A) Standard 2021-05-01 2021-05-02 Tshwane (GTP) 5 1668.7 5 2.5 1559.3 0 Details
33 Ekurhuleni Chess Kempton Park Open 2020 (A) Standard 2020-11-21 2020-11-21 Ekurhuleni (GE) 5 1691.8 5 1.5 1508.7 0 Details
34 The King`s Cup League 2020 (A) Standard 2020-03-07 2020-03-07 Johannesburg Metro (GJM) 5 1710.2 5 3 1853.7 0 Details
35 Randburg Chess Club Autum Swiss 2020 Standard 2020-02-04 2020-03-10 Johannesburg Metro (GJM) 6 1710.2 6 3.5 1509.9 0 Details
36 JNW Club - Trinityhouse Little Falls Open 2020 (A) Standard 2020-03-14 2020-03-14 Johannesburg Metro (GJM) 5 1710.2 5 2.5 1649.3 0 Details
37 JNW Club - Trinityhouse Randpark Ridge Open 2020 (A) Standard 2020-02-22 2020-02-22 Johannesburg Metro (GJM) 5 1781.3 4 1 1261 0 Details
38 JNW Club - Bryanston Open1 2020 (A) Standard 2020-02-01 2020-02-01 Johannesburg Metro (GJM) 5 1781.3 4 2 1532.3 0 Details
39 The King`s Cup League 2019 (A) Standard 2019-10-19 2019-10-19 Johannesburg Metro (GJM) 5 1761 5 3.5 1926.4 0 Details
40 Randburg Chess Club Winter Swiss 2019 Standard 2019-07-30 2019-09-03 Johannesburg Metro (GJM) 6 1776.1 6 4 1723.7 0 Details
41 The King`s Cup League - Stage 2 2019 (A) Standard 2019-09-07 2019-09-07 Johannesburg Metro (GJM) 5 1776.1 5 2 1652.1 0 Details
42 JNW Club - Bryanston Open 2 2019 (A) Standard 2019-05-11 2019-05-11 Johannesburg Metro (GJM) 5 1773.3 5 2.5 1832.4 0 Details
43 2018 Gauteng North Open (A) Standard 2018-10-20 2018-10-21 Tshwane (GTP) 5 1792.7 5 3 1631 0 Details
44 JNW Club - Maragon Open 2018 (A) Standard 2018-08-04 2018-08-04 Johannesburg Metro (GJM) 5 1810.2 5 3 1652.2 0 Details
45 SWVG Arnold Classic Rapid & Blitz 2018 (Rapid Prestige) Rapid 2018-05-19 2018-05-20 Tshwane (GTP) 10 1834.9 7 1.5 1541.5 0 Details
46 JNW Club - Linden Open 2018 (A) Standard 2018-04-14 2018-04-14 Johannesburg Metro (GJM) 5 1848 5 2.5 1728.5 0 Details
47 Randburg Club - Summer Swiss 2018 Standard 2018-01-30 2018-03-13 Johannesburg Metro (GJM) 7 1853.5 5 3.5 1750.1 0 Details
48 The Outpost Chess Club Open 2018 (A) Standard 2018-03-16 2018-03-17 Johannesburg Metro (GJM) 6 1853.5 6 3 1819 0 Details
49 2017 Gauteng Chess League 1St Division (Classic) Classical 2017-11-04 2017-11-25 Tshwane (GTP) 7 1673 7 3 1738 0 Details
50 2017 Lardies Open (A+B) Standard 2017-10-28 2017-10-28 Tshwane (GTP) 5 1673 5 2.5 1508 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 7
Wins 3
Draws 1
Losses 3
White 4
Black 3
White wins 2
Black wins 1
Score 3.5
Percent 50
Dp 0
AOR 1629.7
Performance 1629.7
Game statistics (History)
Games 252
Wins 107
Draws 48
Losses 97
White 123
Black 129
White wins 60
Black wins 47
Score 131
Percent 52
Dp 16.9
AOR 1618.8
Performance 1635.7
Rankings (Main)
National
Overall 659
Gender 619
Age group 68
Gender/Age 68
Provincial
Overall 241
Gender 225
Age group 24
Gender/Age 24
Regional
Overall 90
Gender 81
Age group 8
Gender/Age 8
Rankings (Standard)
National
Overall 549
Gender 516
Age group 57
Gender/Age 57
Provincial
Overall 208
Gender 197
Age group 21
Gender/Age 21
Regional
Overall 73
Gender 67
Age group 7
Gender/Age 7
Rankings (Rapid)
National
Overall 55
Gender 54
Age group 14
Gender/Age 14
Provincial
Overall 18
Gender 18
Age group 6
Gender/Age 6
Regional
Overall 9
Gender 9
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 3.5
Percent 50
Aor 1629.7
Dp 0
Prat 1629.7
Performance (12 months)
Games 58
Score 26
Percent 44.8
Aor 1668.3
Dp -44
Prat 1624.3
Performance (History)
Games 252
Score 131
Percent 52
Aor 1618.8
Dp 16.9
Prat 1635.7
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Metcalfe, AR (Allister Richard) 11 3 8 Randburg Club - Summer Swiss 2018 Randburg Winter Swiss 2025 Details
Overall 2 Kleyn, AE (Andrew Edward) 10 5 5 The Outpost Chess Club Open 2018 (A) Randburg Spring Swiss 2024 Details
Overall 3 Snyckers, FA (Frank Alexander) 7 6 1 Randburg Club - Summer Swiss 2018 Randburg Winter Swiss 2025 Details
Overall 4 Essop, H (Haroon) 6 4 2 Randburg Club Championships Swiss 2022 Randburg Chess Club Winter Rapid 2025 Details
Overall 5 Ngubeni, JM (Jackie) 5 1 4 Randburg Chess Club Winter Swiss 2024 Randburg Winter Swiss 2025 Details
Standard 1 Metcalfe, AR (Allister Richard) 11 3 8 Randburg Club - Summer Swiss 2018 Randburg Winter Swiss 2025 Details
Standard 2 Kleyn, AE (Andrew Edward) 10 5 5 The Outpost Chess Club Open 2018 (A) Randburg Spring Swiss 2024 Details
Standard 3 Snyckers, FA (Frank Alexander) 7 6 1 Randburg Club - Summer Swiss 2018 Randburg Winter Swiss 2025 Details
Standard 4 Sparks, SJW (Stephen) 5 2 3 Randburg Club Championships Swiss 2022 Randburg Winter Swiss 2025 Details
Standard 5 Snyckers, A (Adam) 5 3 2 Randburg Chess Club New Year Swiss 2024 Neil Savage Memorial Randburg Club Champs 2025 Details