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: 2024/10/04 (51 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 rating1305.1
Current Weighted rating1233.1
Current Weighted performance1301.4
Current official/published rating (highest between Raw, WR and WP)1305.1
Current highest rating achieved1305.1
Current floor (min rating allowed)805.1
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)±142.8
Current Raw change used (final)0.0
Projected new Raw rating1305.1
Projected new Weighed rating1135.5
Projected new Weighted performance1301.4
Projected new final Raw rating (if new WP > new Raw)1305.1
Projected new highest rating1305.1
Projected new floor805.1
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1305.1
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 rating1309.2
Current Weighted rating1156.4
Current Weighted performance1303.7
Current official/published rating (highest between Raw, WR and WP)1309.2
Current highest rating achieved1309.2
Current floor (min rating allowed)809.2
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)±141.9
Current Raw change used (final)0.0
Projected new Raw rating1309.2
Projected new Weighed rating1063.9
Projected new Weighted performance1303.7
Projected new final Raw rating (if new WP > new Raw)1309.2
Projected new highest rating1309.2
Projected new floor809.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1309.2
Projected effective change (new Official - current Official)=0.0
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 rating1279.2
Current Weighted rating1282.7
Current Weighted performance1155.4
Current official/published rating (highest between Raw, WR and WP)1282.7
Current highest rating achieved1322.8
Current floor (min rating allowed)822.8
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 rating1182.0
Projected new Weighted performance1155.4
Projected new final Raw rating (if new WP > new Raw)1279.2
Projected new highest rating1322.8
Projected new floor822.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1279.2
Projected effective change (new Official - current Official)-3.5
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
6 Gauteng Top Schools 2024 (U9 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 4 3.0 1248.8 1199.9 Analysis
5 Ekurhuleni Trails 3 2024 (U8+U10) 2024/08/24 2024/08/24 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1222.2 1157.4 Analysis
4 Ekurhuleni Trails 2 2024 (U8+U10) 2024/07/27 2024/07/27 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1202.2 1116.0 Analysis
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
15 Gauteng Top Schools 2024 (U9 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 4 3.0 1248.8 1199.9 Analysis
14 Ekurhuleni Trails 3 2024 (U8+U10) 2024/08/24 2024/08/24 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1222.2 1157.4 Analysis
13 Ekurhuleni Trails 2 2024 (U8+U10) 2024/07/27 2024/07/27 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1202.2 1116.0 Analysis
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 28 15 0 13 15.0 53.6 30.4 1218.4 1248.8
White 14 8 0 6 8.0 57.1 60.7 1231.8 1292.5
Black 14 7 0 7 7.0 50.0 0.0 1205.1 1205.1
Standard All 23 13 0 10 13.0 56.5 55.4 1223.2 1278.6
White 12 8 0 4 8.0 66.7 141.7 1237.1 1378.7
Black 11 5 0 6 5.0 45.5 -38.6 1208.1 1169.4
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 71 35 4 32 37.0 52.1 18.0 1221.4 1239.4
White 34 15 2 17 16.0 47.1 -25.0 1240.6 1215.6
Black 37 20 2 15 21.0 56.8 57.4 1203.8 1261.2
Standard All 42 19 2 21 20.0 47.6 -20.2 1218.0 1197.8
White 21 9 1 11 9.5 45.2 -40.5 1234.7 1194.2
Black 21 10 1 10 10.5 50.0 0.0 1201.3 1201.3
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) 4 0.5 0 1 3 12.5 1159.8 -318.8 841.1 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 1150157180 Moutafis, A (Andoni) 2 1.5 1 1 0 75.0 1175.8 212.5 1388.3 View list
6 1150151775 Van Wyk, P (Paul) 2 1.0 1 0 1 50.0 1186.8 0.0 1186.8 View list
7 2150148082 Wong, K (Kayla) 2 1.0 1 0 1 50.0 1179.9 0.0 1179.9 View list
8 1150151779 Zhu, R (Ryan Yuancheng) 2 1.0 1 0 1 50.0 1179.9 0.0 1179.9 View list
9 1150153036 Mosala, A (Atlehang) 2 0.0 0 0 2 0.0 1208.7 -425.0 783.7 View list
10 1140134429 Botha, G (Gregory) 1 1.0 1 0 0 100.0 1265.1 425.0 1690.1 View list
11 2150155160 Beaton, M (Miah) 1 1.0 1 0 0 100.0 1202.2 425.0 1627.2 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 1120131436 Emechebe, M (Munachim) 1 1.0 1 0 0 100.0 1128.5 425.0 1553.5 View list
15 1150191336 Jacobs, R (Rameez) 1 1.0 1 0 0 100.0 1230.5 425.0 1655.5 View list
16 2140190503 Ikwuebesi, I (Ifeoma) 1 1.0 1 0 0 100.0 1265.1 425.0 1690.1 View list
17 1160155916 Gorrie, K (Kayvian) 1 1.0 1 0 0 100.0 1248.8 425.0 1673.8 View list
18 1160157231 Lai, J (Joline) 1 1.0 1 0 0 100.0 1129.3 425.0 1554.3 View list
19 1140146688 Linnel, A (Abigail) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
20 2150153035 Mafanya, Z (Zivah) 1 1.0 1 0 0 100.0 1178.4 425.0 1603.4 View list