Player Page

Jacob, AK (Abishai)
Dob: 2009/11/22 (U16)
Gender: Male
Chess SA id: 1090136702
FIDE id:
Region: West Rand (GWR)
Citizen: RSA
Title(s):
Last active: 2024/12/08 (2 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 rating1253.3
Current Weighted rating1229.3
Current Weighted performance1207.5
Current official/published rating (highest between Raw, WR and WP)1253.3
Current highest rating achieved1262.9
Current floor (min rating allowed)762.9
Current K-factor36
Games played this month5
Score (S)1.0
Expected score (We)2.04
Difference (S-We)-0.98
Current Raw change (no limits, including tournament time weight)-35.2
Current min/max change allowed (with limits)±153.7
Current Raw change used (final)-35.2
Projected new Raw rating1218.1
Projected new Weighed rating1132.7
Projected new Weighted performance1171.5
Projected new final Raw rating (if new WP > new Raw)1218.1
Projected new highest rating1262.9
Projected new floor762.9
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1218.1
Projected effective change (new Official - current Official)-35.2
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 rating1254.2
Current Weighted rating1227.4
Current Weighted performance1207.5
Current official/published rating (highest between Raw, WR and WP)1254.2
Current highest rating achieved1267.2
Current floor (min rating allowed)767.2
Current K-factor36
Games played this month5
Score (S)1.0
Expected score (We)2.00
Difference (S-We)-1.00
Current Raw change (no limits, including tournament time weight)-36.0
Current min/max change allowed (with limits)±153.5
Current Raw change used (final)-36.0
Projected new Raw rating1218.2
Projected new Weighed rating1131.1
Projected new Weighted performance1171.5
Projected new final Raw rating (if new WP > new Raw)1218.2
Projected new highest rating1267.2
Projected new floor767.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1218.2
Projected effective change (new Official - current Official)-36.0
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 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
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: Gauteng Inter-Region at UJ 2024 (U16 Candidates)
Start: 2024/12/07  End: 2024/12/08  Host: GJM  Type: Standard   Time: 90  Time weight: 0.94  Rounds: 5
Games: 5  Score: 1.0
Main rating: 1253.3  Rating gain/loss: -35.2
Type rating: 1254.2  Rating gain/loss: -36.0
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
10 Gauteng Inter-Region at UJ 2024 (U16 Candidates) 2024/12/07 2024/12/08 Johannesburg Metro (GJM) Standard 90 0.94 5 5 1.0 1253.3 1254.2 Analysis
9 2024 West Rand Closed (U16) 2024/10/12 2024/10/12 West Rand (GWR) Standard 60 0.83 5 5 2.0 1262.9 1267.2 Analysis
8 2024 West Rand Trials (U16) 2024/09/07 2024/09/07 West Rand (GWR) Standard 60 0.83 5 5 2.5 1248.0 1251.0 Analysis
7 D2 School League Finals 2024 (U19) 2024/07/20 2024/07/20 West Rand (GWR) Standard 60 0.83 5 5 2.0 1255.2 1261.1 Analysis
6 2024 D2 Schools Individuals (U15 Boys) 2024/05/04 2024/05/04 West Rand (GWR) Standard 60 0.83 5 5 3.0 1236.1 1237.3 Analysis
5 2024 West Rand RHS Open (Rooks) 2024/04/13 2024/04/13 West Rand (GWR) Standard 60 0.83 5 5 2.0 1222.7 1218.6 Analysis
4 1st Knights Open Tournament 2024 (C) 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1188.3 1179.0 Analysis
3 2024 West Rand Juniors (U16) 2024/03/09 2024/03/09 West Rand (GWR) Standard 60 0.83 5 5 3.0 1188.3 1179.0 Analysis
2 2024 West Rand Open (Rooks) 2024/02/03 2024/02/03 West Rand (GWR) Standard 60 0.83 5 5 2.0 1192.2 1180.4 Analysis
1 Dainfern College Chess League 2024 (A) 2024/01/29 2024/03/11 Johannesburg Metro (GJM) Standard 60 0.83 6 6 3.0 1222.7 1218.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
21 Gauteng Inter-Region at UJ 2024 (U16 Candidates) 2024/12/07 2024/12/08 Johannesburg Metro (GJM) Standard 90 0.94 5 5 1.0 1253.3 1254.2 Analysis
20 2024 West Rand Closed (U16) 2024/10/12 2024/10/12 West Rand (GWR) Standard 60 0.83 5 5 2.0 1262.9 1267.2 Analysis
19 2024 West Rand Trials (U16) 2024/09/07 2024/09/07 West Rand (GWR) Standard 60 0.83 5 5 2.5 1248.0 1251.0 Analysis
18 D2 School League Finals 2024 (U19) 2024/07/20 2024/07/20 West Rand (GWR) Standard 60 0.83 5 5 2.0 1255.2 1261.1 Analysis
17 2024 D2 Schools Individuals (U15 Boys) 2024/05/04 2024/05/04 West Rand (GWR) Standard 60 0.83 5 5 3.0 1236.1 1237.3 Analysis
16 2024 West Rand RHS Open (Rooks) 2024/04/13 2024/04/13 West Rand (GWR) Standard 60 0.83 5 5 2.0 1222.7 1218.6 Analysis
15 1st Knights Open Tournament 2024 (C) 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1188.3 1179.0 Analysis
14 2024 West Rand Juniors (U16) 2024/03/09 2024/03/09 West Rand (GWR) Standard 60 0.83 5 5 3.0 1188.3 1179.0 Analysis
13 2024 West Rand Open (Rooks) 2024/02/03 2024/02/03 West Rand (GWR) Standard 60 0.83 5 5 2.0 1192.2 1180.4 Analysis
12 Dainfern College Chess League 2024 (A) 2024/01/29 2024/03/11 Johannesburg Metro (GJM) Standard 60 0.83 6 6 3.0 1222.7 1218.6 Analysis
11 St Peters College Chess League 2023 (A) 2023/09/11 2023/10/23 Johannesburg Metro (GJM) Standard 60 0.83 6 4 1.0 1224.8 1218.9 Analysis
10 2023 West Rand Trials (U16) 2023/09/09 2023/09/09 West Rand (GWR) Standard 60 0.83 5 4 1.0 1254.4 1255.3 Analysis
9 D2 Schools Individuals 2023 (U15 Boys) 2023/05/13 2023/05/13 West Rand (GWR) Standard 60 0.83 5 4 2.0 1096.2 1085.6 Analysis
8 Steyn City School Chess League 2023 (A) 2023/05/05 2023/05/29 Johannesburg Metro (GJM) Standard 60 0.83 6 2 1.0 1096.2 1085.6 Analysis
7 Steyn City School Chess League 2023 (B) 2023/05/05 2023/05/29 Johannesburg Metro (GJM) Standard 60 0.83 6 3 3.0 1096.2 1085.6 Analysis
6 West Rand Juniors 2023 (U16) 2023/03/18 2023/03/18 West Rand (GWR) Standard 60 0.83 5 5 2.0 1082.9 1066.8 Analysis
5 West Rand Trials 2022 (U14) 2022/09/03 2022/09/03 West Rand (GWR) Standard 60 0.83 5 4 0.0 1138.3 1131.6 Analysis
4 2nd West Rand Open 2022 (Juniors) 2022/08/06 2022/08/06 West Rand (GWR) Standard 60 0.83 5 5 2.0 1131.7 1121.6 Analysis
3 D2 Schools Individuals 2022 (U13 Boys) 2022/05/07 2022/05/07 West Rand (GWR) Standard 60 0.83 5 5 2.0 1140.3 1130.0 Analysis
2 West Rand Juniors 2022 (U14) 2022/04/09 2022/04/09 West Rand (GWR) Standard 60 0.83 5 5 2.0 1146.9 1135.6 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 51 22 1 28 22.5 44.1 -50.0 1290.7 1240.7
White 23 11 1 11 11.5 50.0 0.0 1318.9 1318.9
Black 28 11 0 17 11.0 39.3 -91.1 1267.4 1176.4
Standard All 51 22 1 28 22.5 44.1 -50.0 1290.7 1240.7
White 23 11 1 11 11.5 50.0 0.0 1318.9 1318.9
Black 28 11 0 17 11.0 39.3 -91.1 1267.4 1176.4
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 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 97 39 1 57 39.5 40.7 -78.9 1253.8 1174.9
White 48 18 1 29 18.5 38.5 -97.4 1259.8 1162.4
Black 49 21 0 28 21.0 42.9 -60.7 1247.9 1187.2
Standard All 97 39 1 57 39.5 40.7 -78.9 1253.8 1174.9
White 48 18 1 29 18.5 38.5 -97.4 1259.8 1162.4
Black 49 21 0 28 21.0 42.9 -60.7 1247.9 1187.2
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1060157143 Myburgh, J (Joshua) 2 1.0 1 0 1 50.0 1160.5 0.0 1160.5 View list
2 1090136712 Sardinha, K (Keanu) 2 1.0 1 0 1 50.0 1173.5 0.0 1173.5 View list
3 1090113581 Udodi, E (Edubechukwu) 2 1.0 1 0 1 50.0 1255.5 0.0 1255.5 View list
4 1100152485 Van Heerden, A (Alexander) 2 1.0 1 0 1 50.0 1244.7 0.0 1244.7 View list
5 1080136704 Klaas, O (Oyintanda) 2 0.0 0 0 2 0.0 1168.7 -425.0 743.7 View list
6 1080149211 Mbasane, D (David) 2 0.0 0 0 2 0.0 1168.7 -425.0 743.7 View list
7 1090117650 Sibanda, M (Marlvin) 2 0.0 0 0 2 0.0 1200.6 -425.0 775.6 View list
8 1070306800 Byleveldt, A (Adriaan Jacobus) 1 1.0 1 0 0 100.0 1255.2 425.0 1680.2 View list
9 1090310914 Brandt, E (Ethan Craig) 1 1.0 1 0 0 100.0 1248.0 425.0 1673.0 View list
10 2100101008 Croukamp, M (Mikayla) 1 1.0 1 0 0 100.0 1192.2 425.0 1617.2 View list
11 1090303110 Faku, J (Junior) 1 1.0 1 0 0 100.0 1236.1 425.0 1661.1 View list
12 2100145818 Greeff, L (Lanelle Leeandra) 1 1.0 1 0 0 100.0 1188.3 425.0 1613.3 View list
13 1110159283 Fourie, S (Shane) 1 1.0 1 0 0 100.0 1222.7 425.0 1647.7 View list
14 1090139687 Keforilwe, Z (Zakhele) 1 1.0 1 0 0 100.0 1146.9 425.0 1571.9 View list
15 2090192188 Alexander, J (Jodie) 1 1.0 1 0 0 100.0 1192.2 425.0 1617.2 View list
16 1060153704 Khumalo, B (Brian) 1 1.0 1 0 0 100.0 1096.2 425.0 1521.2 View list
17 1070153708 Lancaster, K (Kyra) 1 1.0 1 0 0 100.0 1222.7 425.0 1647.7 View list
18 1090157137 Lekganyane, M (Makgoba) 1 1.0 1 0 0 100.0 1096.2 425.0 1521.2 View list
19 1100140256 Mahlangu, B (Boipelo) 1 1.0 1 0 0 100.0 1140.3 425.0 1565.3 View list
20 1090150813 Matshitse, K (Kopano) 1 1.0 1 0 0 100.0 1188.3 425.0 1613.3 View list