Player Page

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
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 rating1370.9
Curent Weighted rating1358.5
Curent Weighted performance1221.9
Current official/published rating (highest between Raw, WR and WP)1370.9
Current floor (min rating allowed)894.0
Current highest rating achieved1394.0
Current K-factor36
Games played this month0
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 rating1370.9
Projected new Weighed rating1360.0
Projected new Weighted performance1221.9
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 rating1394.0
Projected new floor894.0
Projected new K-facor36
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 rating1362.6
Curent Weighted rating1350.0
Curent Weighted performance998.8
Current official/published rating (highest between Raw, WR and WP)1362.6
Current floor (min rating allowed)892.5
Current highest rating achieved1392.5
Current K-factor36
Games played this month0
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 rating1362.6
Projected new Weighed rating1351.5
Projected new Weighted performance998.8
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 rating1392.5
Projected new floor892.5
Projected new K-facor36
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 rating1315.3
Curent Weighted rating1316.5
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1316.5
Current floor (min rating allowed)821.1
Current highest rating achieved1321.1
Current K-factor36
Games played this month0
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 rating1315.3
Projected new Weighed rating1316.8
Projected new Weighted performance0.0
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 rating1321.1
Projected new floor821.1
Projected new K-facor36
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 rating1270.7
Curent Weighted rating1224.5
Curent Weighted performance1154.0
Current official/published rating (highest between Raw, WR and WP)1270.7
Current floor (min rating allowed)821.1
Current highest rating achieved1361.4
Current K-factor36
Games played this month0
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 rating1270.7
Projected new Weighed rating1229.1
Projected new Weighted performance1154.0
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 rating1361.4
Projected new floor821.1
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
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
12
Game 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 idNameGamesScoreWinsDrawsLosses%AorDpPerformView
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