Player Page

Jacobs, CN (Calvin Nicholas)
Dob: 2009/09/22 (U16)
Gender: Male
Chess SA id: 109086379
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/08/18 (21 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
Current Raw rating1914.1
Current Weighted rating1782.2
Current Weighted performance1763.7
Current official/published rating (highest between Raw, WR and WP)1914.1
Current highest rating achieved1969.5
Current floor (min rating allowed)1469.5
Current K-factor24
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)±59.9
Current Raw change used (final)0.0
Projected new Raw rating1914.1
Projected new Weighed rating1642.6
Projected new Weighted performance1763.7
Projected new final Raw rating (if new WP > new Raw)1914.1
Projected new highest rating1969.5
Projected new floor1469.5
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1914.1
Projected effective change (new Official - current Official)=0.0
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
Current Raw rating1929.8
Current Weighted rating1796.4
Current Weighted performance1816.6
Current official/published rating (highest between Raw, WR and WP)1929.8
Current highest rating achieved1984.1
Current floor (min rating allowed)1484.1
Current K-factor24
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)±58.6
Current Raw change used (final)0.0
Projected new Raw rating1929.8
Projected new Weighed rating1655.6
Projected new Weighted performance1816.6
Projected new final Raw rating (if new WP > new Raw)1929.8
Projected new highest rating1984.1
Projected new floor1484.1
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1929.8
Projected effective change (new Official - current Official)=0.0
s
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
Current Raw rating1433.9
Current Weighted rating1291.9
Current Weighted performance1353.9
Current official/published rating (highest between Raw, WR and WP)1433.9
Current highest rating achieved1433.9
Current floor (min rating allowed)933.9
Current K-factor32
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)±118.8
Current Raw change used (final)0.0
Projected new Raw rating1433.9
Projected new Weighed rating1197.5
Projected new Weighted performance1353.9
Projected new final Raw rating (if new WP > new Raw)1433.9
Projected new highest rating1433.9
Projected new floor933.9
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1433.9
Projected effective change (new Official - current Official)=0.0
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
Current Raw rating1851.3
Current Weighted rating1791.2
Current Weighted performance1619.7
Current official/published rating (highest between Raw, WR and WP)1851.3
Current highest rating achieved1932.7
Current floor (min rating allowed)1432.7
Current K-factor24
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)±65.6
Current Raw change used (final)0.0
Projected new Raw rating1851.3
Projected new Weighed rating1653.0
Projected new Weighted performance1619.7
Projected new final Raw rating (if new WP > new Raw)1851.3
Projected new highest rating1932.7
Projected new floor1432.7
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1851.3
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
17 Bojanala's FIDE In The Sparkling Waters 2024 (Prestige) 2024/08/16 2024/08/18 Bojanala Platina (NBR) Standard 120 1.00 6 6 2.5 1969.5 1984.1 Analysis
16 2024 Alekhine Open Chess Tournament (A) 2024/08/09 2024/08/10 Tshwane (GTP) Standard 90 0.94 5 5 4.0 1969.5 1984.1 Analysis
15 Eureka Open 27 July 2024 (A) 2024/07/27 2024/07/27 Sedibeng (GSV) Standard 60 0.83 5 5 3.5 1932.3 1939.9 Analysis
14 2024 Tshwane Chess FIDE RATED Blitz League Championship 3 2024/07/21 2024/07/21 Tshwane (GTP) Blitz 5 0.18 9 9 6.0 1969.5 1887.8 Analysis
13 2024 Midstream College Open Chess Tournament (A) 2024/07/20 2024/07/20 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1932.3 1939.9 Analysis
12 Menlopark Open Chess Tournament 2024 (A) 2024/07/13 2024/07/13 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1932.3 1939.9 Analysis
11 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 6.5 1946.7 1960.3 Analysis
10 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (A) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 4 1.5 1946.7 1960.3 Analysis
9 2024 Tshwane Chess FIDE RATED Blitz League Championship 1 2024/05/26 2024/05/26 Tshwane (GTP) Blitz 5 0.18 9 9 6.0 1946.7 1932.7 Analysis
8 2024 Centurion Club Closed Chess Tournament (A) 2024/05/25 2024/05/25 Tshwane (GTP) Standard 60 0.83 5 5 5.0 1727.9 1732.8 Analysis
7 JMC Crawford International Sandton 2024 (A) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1727.9 1732.8 Analysis
6 2024 Mid Gauteng Open Chess Tournament (A) 2024/05/02 2024/05/02 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1727.9 1732.8 Analysis
5 South African Junior Closed Chess Championship 2024 (U16 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 5.5 1727.9 1732.8 Analysis
4 2024 KSNG CHess Academy Open Tournament (A) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1756.3 1769.8 Analysis
3 2024 Wynie Robbertse Chess Tournament (A) 2024/03/02 2024/03/02 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1763.5 1781.8 Analysis
2 2024 Blou Bul Open Chess Tournament (A) 2024/02/10 2024/02/10 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1736.1 1750.7 Analysis
1 2024 Gauteng Inter-Region Chess Championship (Adult B+Fifty+Ladies) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.0 1740.6 1755.4 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
105 Bojanala's FIDE In The Sparkling Waters 2024 (Prestige) 2024/08/16 2024/08/18 Bojanala Platina (NBR) Standard 120 1.00 6 6 2.5 1969.5 1984.1 Analysis
104 2024 Alekhine Open Chess Tournament (A) 2024/08/09 2024/08/10 Tshwane (GTP) Standard 90 0.94 5 5 4.0 1969.5 1984.1 Analysis
103 Eureka Open 27 July 2024 (A) 2024/07/27 2024/07/27 Sedibeng (GSV) Standard 60 0.83 5 5 3.5 1932.3 1939.9 Analysis
102 2024 Tshwane Chess FIDE RATED Blitz League Championship 3 2024/07/21 2024/07/21 Tshwane (GTP) Blitz 5 0.18 9 9 6.0 1969.5 1887.8 Analysis
101 2024 Midstream College Open Chess Tournament (A) 2024/07/20 2024/07/20 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1932.3 1939.9 Analysis
100 Menlopark Open Chess Tournament 2024 (A) 2024/07/13 2024/07/13 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1932.3 1939.9 Analysis
99 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 6.5 1946.7 1960.3 Analysis
98 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (A) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 4 1.5 1946.7 1960.3 Analysis
97 2024 Tshwane Chess FIDE RATED Blitz League Championship 1 2024/05/26 2024/05/26 Tshwane (GTP) Blitz 5 0.18 9 9 6.0 1946.7 1932.7 Analysis
96 2024 Centurion Club Closed Chess Tournament (A) 2024/05/25 2024/05/25 Tshwane (GTP) Standard 60 0.83 5 5 5.0 1727.9 1732.8 Analysis
95 JMC Crawford International Sandton 2024 (A) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1727.9 1732.8 Analysis
94 2024 Mid Gauteng Open Chess Tournament (A) 2024/05/02 2024/05/02 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1727.9 1732.8 Analysis
93 South African Junior Closed Chess Championship 2024 (U16 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 5.5 1727.9 1732.8 Analysis
92 2024 KSNG CHess Academy Open Tournament (A) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1756.3 1769.8 Analysis
91 2024 Wynie Robbertse Chess Tournament (A) 2024/03/02 2024/03/02 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1763.5 1781.8 Analysis
90 2024 Blou Bul Open Chess Tournament (A) 2024/02/10 2024/02/10 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1736.1 1750.7 Analysis
89 2024 Gauteng Inter-Region Chess Championship (Adult B+Fifty+Ladies) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.0 1740.6 1755.4 Analysis
88 Mzansi Summer Blitz 2023 2023/12/09 2023/12/09 Johannesburg Metro (GJM) Rapid 10 0.29 7 7 4.5 1677.2 1165.6 Analysis
87 CCC Blitz All 2023 2023/12/06 2023/12/06 Tshwane (GTP) Blitz 5 0.18 9 9 8.0 1677.2 1605.4 Analysis
86 CCC Midstream Rapid 2023 2023/11/27 2023/11/27 Tshwane (GTP) Rapid 15 0.39 5 5 3.0 1691.6 1105.2 Analysis
123456
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 101 57 19 25 66.5 65.8 134.7 1706.0 1840.7
White 52 27 11 14 32.5 62.5 106.3 1729.7 1836.0
Black 49 30 8 11 34.0 69.4 164.8 1680.9 1845.7
Standard All 83 45 19 19 54.5 65.7 133.1 1732.8 1865.9
White 44 22 11 11 27.5 62.5 106.3 1765.4 1871.6
Black 39 23 8 8 27.0 69.2 163.5 1696.0 1859.4
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 18 12 0 6 12.0 66.7 141.7 1582.8 1724.4
White 8 5 0 3 5.0 62.5 106.3 1533.5 1639.8
Black 10 7 0 3 7.0 70.0 170.0 1622.2 1792.2
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 619 341 89 189 385.5 62.3 104.4 1474.4 1578.8
White 319 177 44 98 199.0 62.4 105.3 1493.5 1598.7
Black 300 164 45 91 186.5 62.2 103.4 1454.1 1557.6
Standard All 473 251 76 146 289.0 61.1 94.3 1456.6 1551.0
White 245 138 39 68 157.5 64.3 121.4 1464.1 1585.5
Black 228 113 37 78 131.5 57.7 65.2 1448.7 1513.9
Rapid All 34 17 4 13 19.0 55.9 50.0 1495.7 1545.7
White 18 4 2 12 5.0 27.8 -188.9 1677.8 1488.9
Black 16 13 2 1 14.0 87.5 318.8 1290.8 1609.6
Blitz All 112 73 9 30 77.5 69.2 163.2 1543.0 1706.2
White 56 35 3 18 36.5 65.2 129.0 1563.0 1692.0
Black 56 38 6 12 41.0 73.2 197.3 1523.1 1720.4
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 109069454 Sathish, A (Abinavah) 17 7.5 6 3 8 44.1 1541.8 -50.0 1491.8 View list
2 107086377 Jacobs, TB (Tiaan Benjamin) 15 9.0 5 8 2 60.0 1623.6 85.0 1708.6 View list
3 184019054 Mabusela, JM (Johannes) 11 4.0 3 2 6 36.4 1781.1 -115.9 1665.2 View list
4 109069449 Boheim, E (Eugene) 9 7.0 7 0 2 77.8 1391.2 236.1 1627.3 View list
5 177017896 Letsoalo, PM (Peter) 8 4.0 4 0 4 50.0 1630.5 0.0 1630.5 View list
6 108064021 Coetsee, D (Dewald) 7 5.5 5 1 1 78.6 1580.3 242.9 1823.1 View list
7 108076196 Potgieter, E (Edward) 7 3.5 3 1 3 50.0 1536.3 0.0 1536.3 View list
8 209092675 Ramlall, S (Sanjana) 6 5.0 5 0 1 83.3 1345.4 283.3 1628.7 View list
9 208088604 Monnig, E (Erika) 6 4.5 4 1 1 75.0 1638.3 212.5 1850.8 View list
10 107069948 Jones, W (William) 6 3.0 2 2 2 50.0 1561.3 0.0 1561.3 View list
11 184027327 Nene, TH (Themba) 6 2.0 2 0 4 33.3 1716.8 -141.7 1575.2 View list
12 101015487 Khumalo, KB (Keith) 6 0.0 0 0 6 0.0 1604.5 -425.0 1179.5 View list
13 194030356 Pillay, N (Nico) 5 5.0 5 0 0 100.0 1744.3 425.0 2169.3 View list
14 109086362 Yang, A (Alex) 5 3.5 2 3 0 70.0 1484.6 170.0 1654.6 View list
15 109089434 Van Loggerenberg, L (Logan) 4 4.0 4 0 0 100.0 1505.9 425.0 1930.9 View list
16 193020018 Malan, A (Aiden) 4 3.5 3 1 0 87.5 1493.6 318.8 1812.3 View list
17 210083428 Rautenbach, H (Helen Christine) 4 3.5 3 1 0 87.5 1674.0 318.8 1992.7 View list
18 105059134 De Swardt, E (Eduan) 4 3.0 3 0 1 75.0 1306.6 212.5 1519.1 View list
19 109083783 Kushar, T (Tristan) 4 3.0 3 0 1 75.0 1385.2 212.5 1597.7 View list
20 104071191 Mkotong, B (Boipelo) 4 2.5 2 1 1 62.5 1746.4 106.3 1852.7 View list