Player Page

Rivera, J (Joey)
Dob: 2012/05/09 (U14)
Gender: Male
Chess SA id: 1120118540
FIDE id:
Region: iLembe (KIK)
Citizen: RSA
Title(s):
Last active: 2024/02/17 (122 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 rating1144.8
Current Weighted rating1142.1
Current Weighted performance909.8
Current official/published rating (highest between Raw, WR and WP)1144.8
Current highest rating achieved1184.1
Current floor (min rating allowed)684.1
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)±179.4
Current Raw change used (final)0.0
Projected new Raw rating1144.8
Projected new Weighed rating1050.7
Projected new Weighted performance909.8
Projected new final Raw rating (if new WP > new Raw)1144.8
Projected new highest rating1184.1
Projected new floor684.1
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1144.8
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 rating1127.2
Current Weighted rating1129.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1129.3
Current highest rating achieved1162.0
Current floor (min rating allowed)662.0
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)±183.9
Current Raw change used (final)0.0
Projected new Raw rating1127.2
Projected new Weighed rating1038.7
Projected new Weighted performance603.3
Projected new final Raw rating (if new WP > new Raw)1127.2
Projected new highest rating1162.0
Projected new floor662.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1127.2
Projected effective change (new Official - current Official)-2.1
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 rating1173.6
Current Weighted rating1176.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1176.6
Current highest rating achieved1216.8
Current floor (min rating allowed)716.8
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)±172.2
Current Raw change used (final)0.0
Projected new Raw rating1173.6
Projected new Weighed rating1082.4
Projected new Weighted performance742.6
Projected new final Raw rating (if new WP > new Raw)1173.6
Projected new highest rating1216.8
Projected new floor716.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1173.6
Projected effective change (new Official - current Official)-3.0
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
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 Umhlali Rapid 2024 (Senior Primary) 2024/02/17 2024/02/17 iLembe (KIK) Rapid 25 0.54 5 5 2.0 1138.8 1177.9 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
6 Umhlali Rapid 2024 (Senior Primary) 2024/02/17 2024/02/17 iLembe (KIK) Rapid 25 0.54 5 5 2.0 1138.8 1177.9 Analysis
5 ILembe Youth Trials 2023 (U12) 2023/04/22 2023/04/22 iLembe (KIK) Standard 60 0.83 5 5 2.0 1149.1 1141.2 Analysis
4 Ilembe Youth Trials 2022 (U12) 2022/04/23 2022/04/23 iLembe (KIK) Standard 60 0.83 5 4 1.0 1167.0 1162.0 Analysis
3 Ashton Ballito Championship 2022 (B) 2022/02/19 2022/02/19 iLembe (KIK) Rapid 20 0.47 5 5 1.5 1184.1 1216.8 Analysis
2 Umhlali Prep Inter-House 2021 (Grade 3) 2021/11/25 2021/11/25 iLembe (KIK) Rapid 30 0.60 5 5 3.0 1168.5 1200.0 Analysis
1 Mama Luthuli Chess Tournament 2019 (Junior Primary) 2019/08/30 2019/08/30 iLembe (KIK) Standard 60 0.83 5 5 1.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 5 2 0 3 2.0 40.0 -85.0 1263.7 1178.7
White 2 0 0 2 0.0 0.0 -425.0 1304.5 879.5
Black 3 2 0 1 2.0 66.7 141.7 1236.4 1378.1
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 5 2 0 3 2.0 40.0 -85.0 1263.7 1178.7
White 2 0 0 2 0.0 0.0 -425.0 1304.5 879.5
Black 3 2 0 1 2.0 66.7 141.7 1236.4 1378.1
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 29 10 2 17 11.0 37.9 -102.6 1217.2 1114.6
White 14 4 1 9 4.5 32.1 -151.8 1231.8 1080.0
Black 15 6 1 8 6.5 43.3 -56.7 1203.6 1146.9
Standard All 14 4 1 9 4.5 32.1 -151.8 1220.2 1068.4
White 8 3 1 4 3.5 43.8 -53.1 1229.5 1176.4
Black 6 1 0 5 1.0 16.7 -283.3 1207.6 924.3
Rapid All 15 6 1 8 6.5 43.3 -56.7 1214.5 1157.8
White 6 1 0 5 1.0 16.7 -283.3 1234.8 951.5
Black 9 5 1 3 5.5 61.1 94.4 1200.9 1295.3
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 1120156629 Chetty, A (Ayushen) 1 1.0 1 0 0 100.0 1138.8 425.0 1563.8 View list
2 1120136006 Khubeka, G (Godwin) 1 1.0 1 0 0 100.0 1168.5 425.0 1593.5 View list
3 1120137044 Harris, M (Michael) 1 1.0 1 0 0 100.0 1184.1 425.0 1609.1 View list
4 1120136917 Gasa, S (Simphiwe) 1 1.0 1 0 0 100.0 1167.0 425.0 1592.0 View list
5 1140135939 Mbeje, U (Uminathi) 1 1.0 1 0 0 100.0 1138.8 425.0 1563.8 View list
6 1120135971 Maharaj, R (Rudhav) 1 1.0 1 0 0 100.0 1149.1 425.0 1574.1 View list
7 1120136010 Maharaj, R (Riyav) 1 1.0 1 0 0 100.0 1149.1 425.0 1574.1 View list
8 1120136009 Lombaard, C (Caleb) 1 1.0 1 0 0 100.0 1168.5 425.0 1593.5 View list
9 110095473 Sangster, I (Issy) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 1120136017 Van Der Vyver, O (Olivia) 1 1.0 1 0 0 100.0 1168.5 425.0 1593.5 View list
11 2100118542 Khumalo, N (Nobuhle) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
12 1120137064 Stafford, R (Robert) 1 0.5 0 1 0 50.0 1184.1 0.0 1184.1 View list
13 2100106308 Prigge, J (Julia) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
14 2120136013 Petrie, J (Jessica) 1 0.0 0 0 1 0.0 1168.5 -425.0 743.5 View list
15 2130135983 Peter, I (Isabella) 1 0.0 0 0 1 0.0 1149.1 -425.0 724.1 View list
16 1110136047 O`neill, T (Tristan) 1 0.0 0 0 1 0.0 1167.0 -425.0 742.0 View list
17 1110146798 Nkosi, S (Sihole) 1 0.0 0 0 1 0.0 1149.1 -425.0 724.1 View list
18 1090101759 Naidoo, L (Leah) 1 0.0 0 0 1 0.0 1184.1 -425.0 759.1 View list
19 1110118530 Mchunu, N (Nhlonipho) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
20 1110137049 Kunene, L (Lwethu) 1 0.0 0 0 1 0.0 1184.1 -425.0 759.1 View list