Player Page

Jacobson, G (Gabriel)
Dob: 2006/05/02 (U20)
Gender: Male
Chess SA id: 106085427
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2024/10/05 (47 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 rating1807.5
Current Weighted rating1665.8
Current Weighted performance1731.6
Current official/published rating (highest between Raw, WR and WP)1807.5
Current highest rating achieved1807.5
Current floor (min rating allowed)1307.5
Current K-factor24
Games played this month5
Score (S)4.0
Expected score (We)3.72
Difference (S-We)0.23
Current Raw change (no limits, including tournament time weight)5.6
Current min/max change allowed (with limits)±69.8
Current Raw change used (final)5.6
Projected new Raw rating1813.1
Projected new Weighed rating1538.2
Projected new Weighted performance1767.7
Projected new final Raw rating (if new WP > new Raw)1813.1
Projected new highest rating1813.1
Projected new floor1313.1
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1813.1
Projected effective change (new Official - current Official)+5.6
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 rating1790.7
Current Weighted rating1639.8
Current Weighted performance1725.8
Current official/published rating (highest between Raw, WR and WP)1790.7
Current highest rating achieved1790.7
Current floor (min rating allowed)1290.7
Current K-factor28
Games played this month5
Score (S)4.0
Expected score (We)3.68
Difference (S-We)0.32
Current Raw change (no limits, including tournament time weight)9.0
Current min/max change allowed (with limits)±71.5
Current Raw change used (final)9.0
Projected new Raw rating1799.7
Projected new Weighed rating1513.9
Projected new Weighted performance1768.7
Projected new final Raw rating (if new WP > new Raw)1799.7
Projected new highest rating1799.7
Projected new floor1299.7
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1799.7
Projected effective change (new Official - current Official)+9.0
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 rating1433.6
Current Weighted rating1335.9
Current Weighted performance1485.4
Current official/published rating (highest between Raw, WR and WP)1485.4
Current highest rating achieved1433.6
Current floor (min rating allowed)933.6
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)±118.9
Current Raw change used (final)0.0
Projected new Raw rating1433.6
Projected new Weighed rating1232.7
Projected new Weighted performance1485.4
Projected new final Raw rating (if new WP > new Raw)1485.4
Projected new highest rating1485.4
Projected new floor985.4
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1485.4
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Tournament: Paarl Boys' High Chess Festival 2024 (Elite)
Start: 2024/10/04  End: 2024/10/05  Host: WCW  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 4.0
Main rating: 1807.5  Rating gain/loss: 5.6
Type rating: 1790.7  Rating gain/loss: 9.0
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
10 Paarl Boys' High Chess Festival 2024 (Elite) 2024/10/04 2024/10/05 Cape Winelands (WCW) Standard 60 0.83 6 5 4.0 1807.5 1790.7 Analysis
9 2024 South Africa National Schools Chess Championship (U18 Boys) 2024/09/27 2024/09/28 Nelson Mandela Bay (ENM) Standard 70 0.87 7 7 5.5 1753.7 1719.6 Analysis
8 CT League 2024 (A) 2024/07/20 2024/09/07 Cape Town (WCT) Standard 120 1.00 11 10 8.0 1753.7 1719.6 Analysis
7 Curro Durbanville Chess Rapid Open 2024 (Championship) 2024/07/13 2024/07/13 Cape Town (WCT) Rapid 35 0.66 6 6 4.0 1738.5 1342.9 Analysis
6 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 5.0 1694.8 1669.5 Analysis
5 Hermanus Chess Club Open 2024 (Championship) 2024/04/20 2024/04/20 Overberg (WOS) Rapid 20 0.47 7 6 2.0 1689.8 1297.9 Analysis
4 Western Cape Inter Region Cup 2024 (U20 Boys) 2024/03/23 2024/03/24 Overberg (WOS) Standard 90 0.94 5 5 4.0 1617.5 1600.6 Analysis
3 Western Cape HS Individuals Championship 2024 (U18 Boys) 2024/03/21 2024/03/22 Overberg (WOS) Standard 60 0.83 6 6 4.5 1617.5 1600.6 Analysis
2 Cape Town Metro Schools Chess Closed Individuals 2024 (U18 Boys) 2024/03/02 2024/03/03 Cape Town (WCT) Standard 60 0.83 6 6 5.0 1617.5 1600.6 Analysis
1 CT Metro Central District Schools Chess Individuals Trials 2024 (U18 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 4.5 1592.9 1561.2 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
30 Paarl Boys' High Chess Festival 2024 (Elite) 2024/10/04 2024/10/05 Cape Winelands (WCW) Standard 60 0.83 6 5 4.0 1807.5 1790.7 Analysis
29 2024 South Africa National Schools Chess Championship (U18 Boys) 2024/09/27 2024/09/28 Nelson Mandela Bay (ENM) Standard 70 0.87 7 7 5.5 1753.7 1719.6 Analysis
28 CT League 2024 (A) 2024/07/20 2024/09/07 Cape Town (WCT) Standard 120 1.00 11 10 8.0 1753.7 1719.6 Analysis
27 Curro Durbanville Chess Rapid Open 2024 (Championship) 2024/07/13 2024/07/13 Cape Town (WCT) Rapid 35 0.66 6 6 4.0 1738.5 1342.9 Analysis
26 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 5.0 1694.8 1669.5 Analysis
25 Hermanus Chess Club Open 2024 (Championship) 2024/04/20 2024/04/20 Overberg (WOS) Rapid 20 0.47 7 6 2.0 1689.8 1297.9 Analysis
24 Western Cape Inter Region Cup 2024 (U20 Boys) 2024/03/23 2024/03/24 Overberg (WOS) Standard 90 0.94 5 5 4.0 1617.5 1600.6 Analysis
23 Western Cape HS Individuals Championship 2024 (U18 Boys) 2024/03/21 2024/03/22 Overberg (WOS) Standard 60 0.83 6 6 4.5 1617.5 1600.6 Analysis
22 Cape Town Metro Schools Chess Closed Individuals 2024 (U18 Boys) 2024/03/02 2024/03/03 Cape Town (WCT) Standard 60 0.83 6 6 5.0 1617.5 1600.6 Analysis
21 CT Metro Central District Schools Chess Individuals Trials 2024 (U18 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 4.5 1592.9 1561.2 Analysis
20 Kraaifontein Open 2023 (Adanced) 2023/12/09 2023/12/10 Cape Town (WCT) Standard 70 0.87 6 6 4.0 1572.4 1526.3 Analysis
19 Paarl Boys High Chess Festival 2023 (Elite Division) 2023/10/13 2023/10/14 Cape Winelands (WCW) Standard 60 0.83 6 6 2.5 1598.9 1561.5 Analysis
18 WP Club League 2023 (D PlayOffs) 2023/09/02 2023/09/09 Cape Town (WCT) Standard 70 0.87 5 2 2.0 1584.1 1534.6 Analysis
17 WP Club League 2023 (A) 2023/07/29 2023/09/09 Cape Town (WCT) Standard 120 1.00 11 2 0.5 1584.1 1534.6 Analysis
16 WP Club League 2023 (D1) 2023/07/29 2023/08/19 Cape Town (WCT) Standard 70 0.87 6 3 1.5 1610.9 1566.6 Analysis
15 Curro Durbanville Chess Open Rapid 2023 (Advanced) 2023/07/15 2023/07/15 Cape Town (WCT) Rapid 35 0.66 6 6 5.0 1571.0 1177.7 Analysis
14 WP Closed 2023 (U18+U20) 2023/06/16 2023/06/17 Cape Town (WCT) Standard 70 0.87 6 6 5.5 1476.5 1472.8 Analysis
13 Western Cape HS Individuals 2023 (U17 Boys) 2023/04/01 2023/04/02 Cape Town (WCT) Standard 60 0.83 6 6 4.5 1423.5 1421.4 Analysis
12 Cape Town Open 2023 (Advanced) 2023/03/24 2023/03/26 Cape Town (WCT) Standard 90 0.94 6 6 3.0 1377.2 1382.5 Analysis
11 Cape Town Metro Schools Chess Closed Individuals 2023 (U17 Boys) 2023/03/03 2023/03/04 Cape Town (WCT) Standard 60 0.83 6 5 3.5 1377.2 1382.5 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 65 45 3 17 46.5 71.5 183.1 1603.4 1786.5
White 35 28 2 5 29.0 82.9 279.3 1592.6 1871.9
Black 30 17 1 12 17.5 58.3 70.8 1616.0 1686.9
Standard All 53 39 3 11 40.5 76.4 224.5 1558.2 1782.7
White 29 24 2 3 25.0 86.2 307.8 1553.8 1861.6
Black 24 15 1 8 15.5 64.6 124.0 1563.4 1687.4
Rapid All 12 6 0 6 6.0 50.0 0.0 1803.3 1803.3
White 6 4 0 2 4.0 66.7 141.7 1780.1 1921.8
Black 6 2 0 4 2.0 33.3 -141.7 1826.6 1684.9
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 153 94 13 46 100.5 65.7 133.3 1498.6 1631.9
White 80 51 8 21 55.0 68.8 159.4 1497.8 1657.2
Black 73 43 5 25 45.5 62.3 104.8 1499.4 1604.2
Standard All 124 78 13 33 84.5 68.1 154.2 1478.0 1632.2
White 66 41 8 17 45.0 68.2 154.5 1484.0 1638.5
Black 58 37 5 16 39.5 68.1 153.9 1471.1 1625.0
Rapid All 29 16 0 13 16.0 55.2 44.0 1586.6 1630.6
White 14 10 0 4 10.0 71.4 182.1 1563.0 1745.1
Black 15 6 0 9 6.0 40.0 -85.0 1608.7 1523.7
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1070138106 Thakersee, A (Akshay) 3 3.0 3 0 0 100.0 1501.0 425.0 1926.0 View list
2 107061440 Van Staaden, D (Darren) 3 3.0 3 0 0 100.0 1445.3 425.0 1870.3 View list
3 108091526 Lau, C (Callum) 2 2.0 2 0 0 100.0 1438.9 425.0 1863.9 View list
4 107088309 Michaels, A (Antonio) 2 2.0 2 0 0 100.0 1520.5 425.0 1945.5 View list
5 1060113331 Slabber, P (Pieter) 2 2.0 2 0 0 100.0 1703.2 425.0 2128.2 View list
6 1120130970 Bell, L (Luke) 2 1.0 1 0 1 50.0 1533.5 0.0 1533.5 View list
7 106092092 Budge, D (Daniel) 2 1.0 1 0 1 50.0 1443.5 0.0 1443.5 View list
8 107061376 Goliath, K (Kian) 2 1.0 1 0 1 50.0 1290.4 0.0 1290.4 View list
9 1140134078 Manning, C (Callan) 2 1.0 1 0 1 50.0 1463.1 0.0 1463.1 View list
10 1070097558 Maruma, K (Katlego) 2 1.0 1 0 1 50.0 1408.8 0.0 1408.8 View list
11 106053361 Moollajee, R (Rehaan) 2 1.0 1 0 1 50.0 1407.8 0.0 1407.8 View list
12 205053638 Palmer, ZE (Zante) 2 1.0 1 0 1 50.0 1264.8 0.0 1264.8 View list
13 106089505 Mchontsi, A (Ayabonga) 2 1.0 0 2 0 50.0 1450.0 0.0 1450.0 View list
14 1070119933 Waguta, B (Brooklyn) 2 0.0 0 0 2 0.0 1309.5 -425.0 884.5 View list
15 1070150611 Da Costa, M (Muhammad Nazim) 1 1.0 1 0 0 100.0 1339.0 425.0 1764.0 View list
16 2930100456 Chiriya, T (Takudzwa) 1 1.0 1 0 0 100.0 1738.5 425.0 2163.5 View list
17 106002408 Blomerus, K (Kian) 1 1.0 1 0 0 100.0 1423.5 425.0 1848.5 View list
18 1060136421 Bless, L (Lulutho) 1 1.0 1 0 0 100.0 1592.9 425.0 2017.9 View list
19 1060108786 Blauw, S (Siyamthanda) 1 1.0 1 0 0 100.0 1377.2 425.0 1802.2 View list
20 1070146878 Bowers, C (Chad) 1 1.0 1 0 0 100.0 1617.5 425.0 2042.5 View list