Player Page

Sihewula, A (Achuma)
Dob: 2009/07/12 (U16)
Gender: Male
Chess SA id: 1090111480
FIDE id:
Region: Nelson Mandela Bay (ENM)
Citizen: RSA
Title(s):
Last active: 2024/05/11 (8 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 rating1284.8
Curent Weighted rating1170.5
Curent Weighted performance1276.6
Current official/published rating (highest between Raw, WR and WP)1284.8
Current floor (min rating allowed)784.8
Current highest rating achieved1284.8
Current K-factor36
Games played this month4
Score (S)3.0
Expected score (We)2.10
Difference (S-We)0.90
Current Raw change (no limits, including tournament time weight)26.9
Current min/max change allowed (with limits)±146.9
Current Raw change used (final)26.9
Projected new Raw rating1311.7
Projected new Weighed rating1184.0
Projected new Weighted performance1276.6
Projected new official/published rating (highest between new Raw, new WR and new WP)1311.7
Projected effective change (new Official - current Official)+26.9
Projected new highest rating1311.7
Projected new floor811.7
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 rating1286.5
Curent Weighted rating1186.9
Curent Weighted performance1278.4
Current official/published rating (highest between Raw, WR and WP)1286.5
Current floor (min rating allowed)786.5
Current highest rating achieved1286.5
Current K-factor36
Games played this month4
Score (S)3.0
Expected score (We)2.14
Difference (S-We)0.86
Current Raw change (no limits, including tournament time weight)31.0
Current min/max change allowed (with limits)±146.6
Current Raw change used (final)31.0
Projected new Raw rating1317.5
Projected new Weighed rating1200.1
Projected new Weighted performance1278.4
Projected new official/published rating (highest between new Raw, new WR and new WP)1317.5
Projected effective change (new Official - current Official)+31.0
Projected new highest rating1317.5
Projected new floor817.5
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 rating1095.6
Curent Weighted rating1098.3
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1098.3
Current floor (min rating allowed)644.8
Current highest rating achieved1144.8
Current K-factor40
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)±192.4
Current Raw change used (final)0.0
Projected new Raw rating1095.6
Projected new Weighed rating1097.1
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1097.1
Projected effective change (new Official - current Official)-1.2
Projected new highest rating1144.8
Projected new floor644.8
Projected new K-facor40
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 rating1159.6
Curent Weighted rating1171.7
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1171.7
Current floor (min rating allowed)644.8
Current highest rating achieved1199.6
Current K-factor40
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)±175.6
Current Raw change used (final)0.0
Projected new Raw rating1159.6
Projected new Weighed rating1170.0
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1170.0
Projected effective change (new Official - current Official)-1.7
Projected new highest rating1199.6
Projected new floor644.8
Projected new K-facor40
Tournaments
Tournament: NMBCU Trial 3 2024 (U16)
Start: 2024/05/10  End: 2024/05/11  Host: ENM  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 4
Games: 4  Score: 3.0
Main rating: 1284.8  Rating gain/loss: 26.9
Type rating: 1286.5  Rating gain/loss: 31.0
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
4 NMBCU Trial 3 2024 (U16) 2024/05/10 2024/05/11 Nelson Mandela Bay (ENM) Standard 60 0.83 6 4 3.0 1284.8 1286.5 Analysis
3 NMBCU Trials 2 2024 (U16) 2024/04/12 2024/04/13 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 3.0 1236.9 1262.7 Analysis
2 Madibaz Chess Tournament 2024 (B) 2024/03/01 2024/03/02 Nelson Mandela Bay (ENM) Standard 60 0.83 5 5 3.0 1209.4 1238.6 Analysis
1 NMBCU Trials 1 2024 (U16) 2024/02/16 2024/02/16 Nelson Mandela Bay (ENM) Standard 60 0.83 6 5 3.0 1165.9 1191.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
20 NMBCU Trial 3 2024 (U16) 2024/05/10 2024/05/11 Nelson Mandela Bay (ENM) Standard 60 0.83 6 4 3.0 1284.8 1286.5 Analysis
19 NMBCU Trials 2 2024 (U16) 2024/04/12 2024/04/13 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 3.0 1236.9 1262.7 Analysis
18 Madibaz Chess Tournament 2024 (B) 2024/03/01 2024/03/02 Nelson Mandela Bay (ENM) Standard 60 0.83 5 5 3.0 1209.4 1238.6 Analysis
17 NMBCU Trials 1 2024 (U16) 2024/02/16 2024/02/16 Nelson Mandela Bay (ENM) Standard 60 0.83 6 5 3.0 1165.9 1191.0 Analysis
16 NMBCU Closed 2023 (U16) 2023/08/11 2023/08/12 Nelson Mandela Bay (ENM) Standard 60 0.83 6 5 1.5 1167.9 1199.4 Analysis
15 NMBCU Trial 4 2023 (U16) 2023/07/28 2023/07/29 Nelson Mandela Bay (ENM) Standard 60 0.83 5 5 2.5 1176.0 1192.0 Analysis
14 Junior Chess Battles Blitz 2023 (B) 2023/07/16 2023/07/16 Nelson Mandela Bay (ENM) Blitz 5 0.18 7 7 3.0 1176.0 1199.6 Analysis
13 Junior Chess Battles Classical 2023 (U16) 2023/07/15 2023/07/16 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 1.5 1176.0 1192.0 Analysis
12 EP Trials 3 2023 (U16) 2023/05/05 2023/05/06 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 4.0 1121.6 1126.0 Analysis
11 NMB 2nd Trials 2023 (U16) 2023/03/24 2023/03/25 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 2.0 1116.6 1117.2 Analysis
10 NMB 1st Trials 2023 (U16) 2023/02/17 2023/02/18 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 3.0 1081.7 1070.4 Analysis
9 2022 Madibaz Physics Chess Open (D) 2022/10/07 2022/10/08 Nelson Mandela Bay (ENM) Rapid 30 0.60 7 6 2.0 1105.0 1144.8 Analysis
8 2022 Madibaz Tournament (Primary School Team) 2022/09/10 2022/09/10 Nelson Mandela Bay (ENM) Rapid 30 0.60 6 6 2.0 1078.3 1200.0 Analysis
7 2022 Madibaz Tournament (Primary School) 2022/09/09 2022/09/09 Nelson Mandela Bay (ENM) Blitz 5 0.18 7 7 4.0 1078.3 1200.0 Analysis
6 2020 Boardwalk Pearson Open Chess Festival (Open) 2020/03/14 2020/03/15 Nelson Mandela Bay (ENM) Standard 90 0.94 5 5 1.0 1048.7 1021.2 Analysis
5 2020 NMBCU Chess Trials 2 2020 (U12) 2020/03/07 2020/03/07 Nelson Mandela Bay (ENM) Standard 62 0.84 5 5 3.0 1048.7 1021.2 Analysis
4 Nelson Mandela Bay Junior Trials 4 2019 (U12) 2019/07/12 2019/07/13 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 1.0 1112.1 1095.6 Analysis
3 NMBJCU Trials 3 2019 (U12) 2019/05/10 2019/05/11 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 3.0 1112.1 1092.8 Analysis
2 Nelson Mandela Bay Junior Chess Trials 2 2019 (U12) 2019/04/05 2019/04/06 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 1.5 1166.5 1158.0 Analysis
1 NMBCU Trials 1 2019 (U12) 2019/03/08 2019/03/09 Nelson Mandela Bay (ENM) Standard 60 0.83 5 5 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 20 10 4 6 12.0 60.0 85.0 1294.2 1379.2
White 9 2 2 5 3.0 33.3 -141.7 1292.5 1150.8
Black 11 8 2 1 9.0 81.8 270.5 1295.6 1566.0
Standard All 20 10 4 6 12.0 60.0 85.0 1294.2 1379.2
White 9 2 2 5 3.0 33.3 -141.7 1292.5 1150.8
Black 11 8 2 1 9.0 81.8 270.5 1295.6 1566.0
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 113 44 10 59 49.0 43.4 -56.4 1226.8 1170.4
White 57 20 5 32 22.5 39.5 -89.5 1226.8 1137.3
Black 56 24 5 27 26.5 47.3 -22.8 1226.7 1204.0
Standard All 87 33 10 44 38.0 43.7 -53.7 1230.3 1176.6
White 44 16 5 23 18.5 42.0 -67.6 1224.4 1156.8
Black 43 17 5 21 19.5 45.3 -39.5 1236.4 1196.9
Rapid All 12 4 0 8 4.0 33.3 -141.7 1201.9 1060.2
White 6 2 0 4 2.0 33.3 -141.7 1221.9 1080.2
Black 6 2 0 4 2.0 33.3 -141.7 1181.9 1040.2
Blitz All 14 7 0 7 7.0 50.0 0.0 1226.0 1226.0
White 7 2 0 5 2.0 28.6 -182.1 1246.3 1064.1
Black 7 5 0 2 5.0 71.4 182.1 1205.6 1387.8
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 2090107383 Munir, A (Ainy) 5 2.5 2 1 2 50.0 1126.4 0.0 1126.4 View list
2 1090152431 Abrahams, S (Shaaiq) 3 2.0 2 0 1 66.7 1157.9 141.7 1299.5 View list
3 2080112056 Mdletye, I (Iva) 3 0.0 0 0 3 0.0 1130.2 -425.0 705.2 View list
4 109083952 Taljard, J (Julian) 3 0.0 0 0 3 0.0 1164.9 -425.0 739.9 View list
5 2110133667 Driscoll, J (Jessica Darby) 2 2.0 2 0 0 100.0 1127.2 425.0 1552.2 View list
6 1100150794 Banoobhai, T (Troy) 2 2.0 2 0 0 100.0 1201.4 425.0 1626.4 View list
7 1090146550 Bani, S (Sibabalwe) 2 2.0 2 0 0 100.0 1091.7 425.0 1516.7 View list
8 2090302025 Solomon, S (Sandisiwe) 2 2.0 2 0 0 100.0 1260.8 425.0 1685.8 View list
9 1100139766 Sonti, K (Kamvalethu) 2 2.0 2 0 0 100.0 1187.7 425.0 1612.7 View list
10 108095752 Mtshekexe, U (Usemhle) 2 1.5 1 1 0 75.0 1148.8 212.5 1361.3 View list
11 1130136674 Boggenpoel, D (Dante Xavier) 2 1.0 1 0 1 50.0 1078.3 0.0 1078.3 View list
12 1100158526 Cona, S (Shaunwin) 2 1.0 1 0 1 50.0 1225.3 0.0 1225.3 View list
13 1140143838 Manton, C (Charlie) 2 1.0 1 0 1 50.0 1078.3 0.0 1078.3 View list
14 1110131279 Smith, A (Andre) 2 1.0 1 0 1 50.0 1112.3 0.0 1112.3 View list
15 1080151224 Thompson, C (Chad) 2 1.0 1 0 1 50.0 1148.8 0.0 1148.8 View list
16 1080151219 Collett, S (Samuel) 2 0.5 0 1 1 25.0 1142.3 -212.5 929.8 View list
17 1110097727 Kivido, A (Alex) 2 0.5 0 1 1 25.0 1112.3 -212.5 899.8 View list
18 1100139758 Murray, J (Jaydon) 2 0.5 0 1 1 25.0 1260.8 -212.5 1048.3 View list
19 209088291 Dantu, ZS (Zara Shiloh) 2 0.0 0 0 2 0.0 1156.0 -425.0 731.0 View list
20 1110131971 Chipunza, J (Jared) 2 0.0 0 0 2 0.0 1140.5 -425.0 715.5 View list