Player Page

Robinson, Z (Zachariah)
Dob: 2015/07/30 (U10)
Gender: Male
Chess SA id: 1150147324
FIDE id:
Region: Johannesburg Matro (GJM)
Citizen: RSA
Title(s):
Last active: 2024/04/21 (28 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 rating1202.2
Curent Weighted rating1222.0
Curent Weighted performance1086.3
Current official/published rating (highest between Raw, WR and WP)1222.0
Current floor (min rating allowed)765.1
Current highest rating achieved1265.1
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)±165.3
Current Raw change used (final)0.0
Projected new Raw rating1202.2
Projected new Weighed rating1221.5
Projected new Weighted performance1086.3
Projected new official/published rating (highest between new Raw, new WR and new WP)1221.5
Projected effective change (new Official - current Official)-0.6
Projected new highest rating1265.1
Projected new floor765.1
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 rating1116.0
Curent Weighted rating1146.4
Curent Weighted performance997.9
Current official/published rating (highest between Raw, WR and WP)1146.4
Current floor (min rating allowed)709.6
Current highest rating achieved1209.6
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)±186.9
Current Raw change used (final)0.0
Projected new Raw rating1116.0
Projected new Weighed rating1142.7
Projected new Weighted performance997.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1142.7
Projected effective change (new Official - current Official)-3.7
Projected new highest rating1209.6
Projected new floor709.6
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 rating1279.2
Curent Weighted rating1266.4
Curent Weighted performance1219.2
Current official/published rating (highest between Raw, WR and WP)1279.2
Current floor (min rating allowed)822.8
Current highest rating achieved1322.8
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)±148.1
Current Raw change used (final)0.0
Projected new Raw rating1279.2
Projected new Weighed rating1269.8
Projected new Weighted performance1219.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1279.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1322.8
Projected new floor822.8
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 rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)822.8
Current highest rating achieved1200.0
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 rating1200.0
Projected new Weighted performance
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
Projected new highest rating1200.0
Projected new floor822.8
Projected new K-facor36
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 JCC King David Linksfield Rapid 2024 (C) 2024/04/21 2024/04/21 Johannesburg Metro (GJM) Rapid 20 0.47 5 5 2.0 1254.9 1322.8 Analysis
2 Ekurhuleni Open 2024 (D) 2024/04/06 2024/04/06 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1254.9 1143.7 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U10B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 4 2.0 1265.1 1132.2 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
12 JCC King David Linksfield Rapid 2024 (C) 2024/04/21 2024/04/21 Johannesburg Metro (GJM) Rapid 20 0.47 5 5 2.0 1254.9 1322.8 Analysis
11 Ekurhuleni Open 2024 (D) 2024/04/06 2024/04/06 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1254.9 1143.7 Analysis
10 2024 Gauteng Inter-Region Chess Championship (U10B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 4 2.0 1265.1 1132.2 Analysis
9 Chess is My Lifestyle 2023 (Grade 0-2) 2023/12/09 2023/12/09 Johannesburg Metro (GJM) Rapid 30 0.60 5 5 4.0 1230.5 1283.6 Analysis
8 Ekurhuleni Chess Trial 3 2023 (U10) 2023/06/17 2023/06/17 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1129.3 1134.7 Analysis
7 Chess Molecules 16 June Tournament 2023 (Grade 0-2) 2023/06/16 2023/06/16 Ekurhuleni (GE) Rapid 30 0.60 5 4 3.0 1129.3 1169.6 Analysis
6 Primrose Rapid 2023 (Grade 0-2) 2023/06/10 2023/06/10 Ekurhuleni (GE) Rapid 30 0.60 6 6 4.5 1129.3 1169.6 Analysis
5 Ithembelihle Open 2023 (B) 2023/05/13 2023/05/13 Ekurhuleni (GE) Rapid 20 0.47 5 5 2.5 1128.5 1159.2 Analysis
4 Ekurhuleni Trials 2 2023 (U10) 2023/04/22 2023/04/22 Ekurhuleni (GE) Standard 60 0.83 5 4 0.0 1195.2 1209.6 Analysis
3 Ekhuruleni Chess Trials 1 2023 (U8+U10) 2023/03/25 2023/03/25 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1178.4 1200.0 Analysis
2 Ekurhuleni Springs Open 4 March 2023 (E) 2023/03/04 2023/03/04 Ekurhuleni (GE) Standard 62 0.84 5 5 2.0 1178.4 1200.0 Analysis
1 Chess Power House Rapid 2022 (U8) 2022/10/22 2022/10/22 Johannesburg Metro (GJM) Rapid 30 0.60 5 4 1.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 14 6 0 8 6.0 42.9 -60.7 1157.0 1096.3
White 6 3 0 3 3.0 50.0 0.0 1181.2 1181.2
Black 8 3 0 5 3.0 37.5 -106.3 1138.8 1032.6
Standard All 9 4 0 5 4.0 44.4 -47.2 1135.0 1087.8
White 4 3 0 1 3.0 75.0 212.5 1171.8 1384.3
Black 5 1 0 4 1.0 20.0 -255.0 1105.6 850.6
Rapid All 5 2 0 3 2.0 40.0 -85.0 1196.5 1111.5
White 2 0 0 2 0.0 0.0 -425.0 1200.0 775.0
Black 3 2 0 1 2.0 66.7 141.7 1194.2 1335.9
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 57 26 4 27 28.0 49.1 -7.5 1207.1 1199.6
White 26 10 2 14 11.0 42.3 -65.4 1231.6 1166.2
Black 31 16 2 13 17.0 54.8 41.1 1186.5 1227.6
Standard All 28 10 2 16 11.0 39.3 -91.1 1187.1 1096.0
White 13 4 1 8 4.5 34.6 -130.8 1213.2 1082.4
Black 15 6 1 8 6.5 43.3 -56.7 1164.5 1107.8
Rapid All 29 16 2 11 17.0 58.6 73.3 1226.3 1299.6
White 13 6 1 6 6.5 50.0 0.0 1250.0 1250.0
Black 16 10 1 5 10.5 65.6 132.8 1207.1 1339.9
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 2160151766 Mafane, A (Atlegang) 3 0.5 0 1 2 16.7 1145.7 -283.3 862.3 View list
2 1170144069 Kruger, T (Thinus Pieter) 2 2.0 2 0 0 100.0 1129.3 425.0 1554.3 View list
3 2150157277 Jaffe, E (Ellla) 2 2.0 2 0 0 100.0 1129.3 425.0 1554.3 View list
4 2150151771 Pather, T (Tamishka) 2 2.0 2 0 0 100.0 1204.5 425.0 1629.5 View list
5 1150151775 Van Wyk, P (Paul) 2 1.0 1 0 1 50.0 1186.8 0.0 1186.8 View list
6 2150148082 Wong, K (Kayla) 2 1.0 1 0 1 50.0 1179.9 0.0 1179.9 View list
7 1150151779 Zhu, R (Ryan Yuancheng) 2 1.0 1 0 1 50.0 1179.9 0.0 1179.9 View list
8 1120131436 Emechebe, M (Munachim) 1 1.0 1 0 0 100.0 1128.5 425.0 1553.5 View list
9 1150191336 Jacobs, R (Rameez) 1 1.0 1 0 0 100.0 1230.5 425.0 1655.5 View list
10 2140190503 Ikwuebesi, I (Ifeoma) 1 1.0 1 0 0 100.0 1265.1 425.0 1690.1 View list
11 1140134429 Botha, G (Gregory) 1 1.0 1 0 0 100.0 1265.1 425.0 1690.1 View list
12 1160151761 Barnard, M (Mulder) 1 1.0 1 0 0 100.0 1178.4 425.0 1603.4 View list
13 1140302660 Amallos, J (Joshua) 1 1.0 1 0 0 100.0 1254.9 425.0 1679.9 View list
14 1140146688 Linnel, A (Abigail) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
15 1160157231 Lai, J (Joline) 1 1.0 1 0 0 100.0 1129.3 425.0 1554.3 View list
16 2150153035 Mafanya, Z (Zivah) 1 1.0 1 0 0 100.0 1178.4 425.0 1603.4 View list
17 2140154001 Molefe, K (Khumo) 1 1.0 1 0 0 100.0 1129.3 425.0 1554.3 View list
18 1160191337 Moore, C (Cael) 1 1.0 1 0 0 100.0 1230.5 425.0 1655.5 View list
19 1150157233 Nahon, J (James) 1 1.0 1 0 0 100.0 1129.3 425.0 1554.3 View list
20 2140151770 Noack, A (Angelica) 1 1.0 1 0 0 100.0 1178.4 425.0 1603.4 View list