Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Jacobs, GJ (Gerhard)
Dob:
1977/05/05 (Adult)
Gender:
Male
Chess SA id:
177086357
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2023/12/06 (150 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
Raw rating
=Current rating,
Weighted rating (WR)
Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Curent Raw rating
1370.9
Curent Weighted rating
1358.5
Curent Weighted performance
1221.9
Current official/published rating (highest between Raw, WR and WP)
1370.9
Current floor (min rating allowed)
894.0
Current highest rating achieved
1394.0
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±130.0
Current Raw change used (final)
0.0
Projected new Raw rating
1370.9
Projected new Weighed rating
1360.0
Projected new Weighted performance
1221.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1370.9
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1394.0
Projected new floor
894.0
Projected new K-facor
36
Raw rating
=Current rating,
Weighted rating (WR)
Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Curent Raw rating
1362.6
Curent Weighted rating
1350.0
Curent Weighted performance
998.8
Current official/published rating (highest between Raw, WR and WP)
1362.6
Current floor (min rating allowed)
892.5
Current highest rating achieved
1392.5
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±131.5
Current Raw change used (final)
0.0
Projected new Raw rating
1362.6
Projected new Weighed rating
1351.5
Projected new Weighted performance
998.8
Projected new official/published rating (highest between new Raw, new WR and new WP)
1362.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1392.5
Projected new floor
892.5
Projected new K-facor
36
Raw rating
=Current rating,
Weighted rating (WR)
Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Curent Raw rating
1315.3
Curent Weighted rating
1316.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1316.5
Current floor (min rating allowed)
821.1
Current highest rating achieved
1321.1
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±140.7
Current Raw change used (final)
0.0
Projected new Raw rating
1315.3
Projected new Weighed rating
1316.8
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1316.8
Projected effective change (new Official - current Official)
+0.3
Projected new highest rating
1321.1
Projected new floor
821.1
Projected new K-facor
36
Raw rating
=Current rating,
Weighted rating (WR)
Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Curent Raw rating
1270.7
Curent Weighted rating
1224.5
Curent Weighted performance
1154.0
Current official/published rating (highest between Raw, WR and WP)
1270.7
Current floor (min rating allowed)
821.1
Current highest rating achieved
1361.4
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±149.9
Current Raw change used (final)
0.0
Projected new Raw rating
1270.7
Projected new Weighed rating
1229.1
Projected new Weighted performance
1154.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1270.7
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1361.4
Projected new floor
821.1
Projected new K-facor
36
Tournaments
History
Did not participate this month.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
27
CCC Blitz All 2023
2023/12/06
2023/12/06
Tshwane (GTP)
Blitz
5
0.18
9
9
6.0
1362.2
1198.3
Analysis
26
CCC Midstream Rapid 2023
2023/11/27
2023/11/27
Tshwane (GTP)
Rapid
15
0.39
5
5
3.0
1368.2
1321.1
Analysis
25
Tshwane Chess Arbiter Norm Blitz Tournament 2023
2023/10/29
2023/10/29
Tshwane (GTP)
Blitz
5
0.18
11
11
7.0
1361.2
1176.7
Analysis
24
2023 Centurion Club Championships
2023/07/19
2023/09/06
Tshwane (GTP)
Standard
60
0.83
6
6
4.0
1346.9
1334.5
Analysis
23
Tshwane Chess FIDE Rated Blitz League 3 2023
2023/07/16
2023/07/16
Tshwane (GTP)
Blitz
5
0.18
9
9
4.5
1338.5
1168.8
Analysis
22
2023 Tshwane Chess FIDE Rated Blitz League 2
2023/06/11
2023/06/11
Tshwane (GTP)
Blitz
5
0.18
9
9
4.0
1339.0
1159.1
Analysis
21
2023 Tshwane Chess FIDE Rated Blitz League 1
2023/05/28
2023/05/28
Tshwane (GTP)
Blitz
5
0.18
9
9
4.0
1344.5
1203.4
Analysis
20
2022 Centurion Club Blitz
2022/11/30
2022/11/30
Tshwane (GTP)
Blitz
5
0.18
9
9
4.0
1336.5
1204.1
Analysis
19
CPH Chess Clubs Challenge 2022 (B)
2022/11/12
2022/11/12
Johannesburg Metro (GJM)
Rapid
20
0.47
6
6
4.0
1336.5
1286.2
Analysis
18
2022 Centurion Club Championships
2022/05/11
2022/06/22
Tshwane (GTP)
Standard
60
0.83
6
4
1.0
1353.2
1354.7
Analysis
17
Rachella`s Cafe Blitz Tournament 1 2022
2022/03/20
2022/03/20
Tshwane (GTP)
Blitz
5
0.18
9
9
3.0
1358.6
1231.1
Analysis
16
2021 CCC Inhouse Blitz (A)
2021/11/24
2021/11/24
Tshwane (GTP)
Blitz
5
0.18
7
7
2.0
1394.0
1267.8
Analysis
15
2021 CCC Inhouse (A)
2021/10/20
2021/11/17
Tshwane (GTP)
Standard
60
0.83
5
5
1.0
1394.0
1392.5
Analysis
14
2020 CC Annual Opener
2020/01/29
2020/03/11
Tshwane (GTP)
Standard
60
0.83
6
5
3.0
1375.0
1371.1
Analysis
13
2020 Registration Tournament (B)
2020/01/25
2020/01/25
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1312.5
1300.5
Analysis
12
2019 Centurion Chess Tournament
2019/10/02
2019/10/30
Tshwane (GTP)
Standard
60
0.83
5
4
2.0
1318.8
1306.6
Analysis
11
2019 Alekhine Open (B)
2019/08/09
2019/08/10
Tshwane (GTP)
Standard
120
1.00
5
5
1.5
1306.3
1271.0
Analysis
10
2019 CCC Karl Gstettner Open
2019/07/10
2019/08/21
Tshwane (GTP)
Standard
60
0.83
7
7
4.0
1306.3
1271.0
Analysis
9
2019 SWVG Arnold Classic (Blitz Open)
2019/05/19
2019/05/19
Tshwane (GTP)
Blitz
5
0.18
10
10
4.0
1275.8
1361.4
Analysis
8
2019 SWVG Arnold Classic (Rapid Open)
2019/05/18
2019/05/19
Tshwane (GTP)
Rapid
35
0.66
10
10
5.0
1275.8
1303.8
Analysis
1
2
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Standard
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Rapid
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
183
86
4
93
88.0
48.1
-16.3
1364.5
1348.2
White
91
44
1
46
44.5
48.9
-9.3
1355.0
1345.6
Black
92
42
3
47
43.5
47.3
-23.1
1373.9
1350.8
Standard
All
73
34
3
36
35.5
48.6
-11.6
1342.2
1330.5
White
39
15
1
23
15.5
39.7
-87.2
1360.2
1273.0
Black
34
19
2
13
20.0
58.8
75.0
1321.5
1396.5
Rapid
All
21
12
0
9
12.0
57.1
60.7
1319.2
1379.9
White
10
5
0
5
5.0
50.0
0.0
1384.8
1384.8
Black
11
7
0
4
7.0
63.6
115.9
1259.6
1375.5
Blitz
All
89
40
1
48
40.5
45.5
-38.2
1393.4
1355.2
White
42
24
0
18
24.0
57.1
60.7
1343.0
1403.7
Black
47
16
1
30
16.5
35.1
-126.6
1438.5
1311.9
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
194030356
Pillay, N (Nico)
4
1.0
1
0
3
25.0
1348.2
-212.5
1135.7
View list
2
163040277
Van Rensburg, B (Ben)
3
3.0
3
0
0
100.0
1332.0
425.0
1757.0
View list
3
193020018
Malan, A (Aiden)
3
1.0
1
0
2
33.3
1368.5
-141.7
1226.8
View list
4
102027765
Nieuwoudt, H (Hanno)
3
1.0
1
0
2
33.3
1314.1
-141.7
1172.4
View list
5
109086379
Jacobs, CN (Calvin Nicholas)
3
0.0
0
0
3
0.0
1357.8
-425.0
932.8
View list
6
177017896
Letsoalo, PM (Peter)
3
0.0
0
0
3
0.0
1325.4
-425.0
900.4
View list
7
175033667
Schutte, R (Rico)
3
0.0
0
0
3
0.0
1341.5
-425.0
916.5
View list
8
2110103926
Jacobs, AE (Alyssa)
2
2.0
2
0
0
100.0
1357.7
425.0
1782.7
View list
9
1000162047
Maphalala, A (Andile)
2
2.0
2
0
0
100.0
1354.6
425.0
1779.6
View list
10
1130140475
Van Der Westhuizen, L (Lihan)
2
2.0
2
0
0
100.0
1352.8
425.0
1777.8
View list
11
103004868
Claassen, J (Jean-Daniel)
2
1.0
1
0
1
50.0
1339.8
0.0
1339.8
View list
12
1070153444
Ballim, S (Salif)
2
1.0
1
0
1
50.0
1338.8
0.0
1338.8
View list
13
1090134032
De Roos, H (Hubert)
2
1.0
1
0
1
50.0
1341.8
0.0
1341.8
View list
14
107046393
Fourie, K (Keanan)
2
1.0
1
0
1
50.0
1290.5
0.0
1290.5
View list
15
208088604
Monnig, E (Erika)
2
1.0
1
0
1
50.0
1295.9
0.0
1295.9
View list
16
186029353
Pape, Z (Zane)
2
1.0
1
0
1
50.0
1365.3
0.0
1365.3
View list
17
185030022
Phiri, J (Justice)
2
1.0
1
0
1
50.0
1394.0
0.0
1394.0
View list
18
102035132
Smit, CM (Carlo)
2
1.0
1
0
1
50.0
1314.8
0.0
1314.8
View list
19
208068746
Snyders, M (Meya)
2
1.0
1
0
1
50.0
1365.3
0.0
1365.3
View list
20
1990190892
Molefe, K (Kgosiemang)
2
0.0
0
0
2
0.0
1365.2
-425.0
940.2
View list