Player Page

Koert, C (Connor)
Dob: 2009/08/04 (U16)
Gender: Male
Chess SA id: 1090155762
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2024/03/11 (64 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 rating1357.2
Curent Weighted rating1237.7
Curent Weighted performance1357.6
Current official/published rating (highest between Raw, WR and WP)1357.2
Current floor (min rating allowed)857.2
Current highest rating achieved1357.2
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)±132.5
Current Raw change used (final)0.0
Projected new Raw rating1357.2
Projected new Weighed rating1248.7
Projected new Weighted performance1357.6
Projected new official/published rating (highest between new Raw, new WR and new WP)1357.6
Projected effective change (new Official - current Official)+0.4
Projected new highest rating1357.2
Projected new floor857.2
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 rating1378.2
Curent Weighted rating1256.5
Curent Weighted performance1371.8
Current official/published rating (highest between Raw, WR and WP)1378.2
Current floor (min rating allowed)878.2
Current highest rating achieved1378.2
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)±128.6
Current Raw change used (final)0.0
Projected new Raw rating1378.2
Projected new Weighed rating1268.3
Projected new Weighted performance1371.8
Projected new official/published rating (highest between new Raw, new WR and new WP)1378.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1378.2
Projected new floor878.2
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)700.0
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 floor700.0
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 rating1101.4
Curent Weighted rating1146.1
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1146.1
Current floor (min rating allowed)700.0
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)±190.8
Current Raw change used (final)0.0
Projected new Raw rating1101.4
Projected new Weighed rating1140.8
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1140.8
Projected effective change (new Official - current Official)-5.3
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 2024 Piet Robbertse Open Chess Tournament (C) 2024/02/03 2024/02/04 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1266.4 1307.8 Analysis
1 Dainfern College Chess League 2024 (A) 2024/01/29 2024/03/11 Johannesburg Metro (GJM) Standard 60 0.83 6 6 5.0 1279.3 1312.5 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
9 2024 Piet Robbertse Open Chess Tournament (C) 2024/02/03 2024/02/04 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1266.4 1307.8 Analysis
8 Dainfern College Chess League 2024 (A) 2024/01/29 2024/03/11 Johannesburg Metro (GJM) Standard 60 0.83 6 6 5.0 1279.3 1312.5 Analysis
7 2023 Moja Chess Extravaganza (Blitz) 2023/10/03 2023/10/03 Frances Baard (NCF) Blitz 5 0.18 7 6 1.0 1181.0 1200.0 Analysis
6 2023 Moja Chess Extravaganza (B) 2023/09/30 2023/10/04 Frances Baard (NCF) Standard 120 1.00 9 9 3.0 1181.0 1179.1 Analysis
5 St Peters College Chess League 2023 (A) 2023/09/11 2023/10/23 Johannesburg Metro (GJM) Standard 60 0.83 6 4 3.5 1181.0 1179.1 Analysis
4 Chess Power House 2023 (B) 2023/08/19 2023/08/19 Johannesburg Metro (GJM) Standard 90 0.94 5 5 2.0 1154.9 1149.2 Analysis
3 Steyn City School Chess League 2023 (A) 2023/05/05 2023/05/29 Johannesburg Metro (GJM) Standard 60 0.83 6 5 1.5 1200.0 1200.0 Analysis
2 Steyn City School Chess League 2023 (B) 2023/05/05 2023/05/29 Johannesburg Metro (GJM) Standard 60 0.83 6 1 0.0 1200.0 1200.0 Analysis
1 Mzansi Fide Open 2023 (Intermediate) 2023/04/27 2023/05/01 Johannesburg Metro (GJM) Standard 120 1.00 6 6 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 11 8 0 3 8.0 72.7 193.2 1263.7 1456.9
White 6 3 0 3 3.0 50.0 0.0 1268.4 1268.4
Black 5 5 0 0 5.0 100.0 425.0 1258.1 1683.1
Standard All 11 8 0 3 8.0 72.7 193.2 1263.7 1456.9
White 6 3 0 3 3.0 50.0 0.0 1268.4 1268.4
Black 5 5 0 0 5.0 100.0 425.0 1258.1 1683.1
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 47 20 2 25 21.0 44.7 -45.2 1323.1 1277.8
White 25 11 1 13 11.5 46.0 -34.0 1314.3 1280.3
Black 22 9 1 12 9.5 43.2 -58.0 1333.0 1275.0
Standard All 41 19 2 20 20.0 48.8 -10.4 1316.3 1305.9
White 22 10 1 11 10.5 47.7 -19.3 1323.6 1304.3
Black 19 9 1 9 9.5 50.0 0.0 1307.8 1307.8
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 6 1 0 5 1.0 16.7 -283.3 1369.5 1086.2
White 3 1 0 2 1.0 33.3 -141.7 1246.3 1104.6
Black 3 0 0 3 0.0 0.0 -425.0 1492.7 1067.7
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1090157137 Lekganyane, M (Makgoba) 1 1.0 1 0 0 100.0 1181.0 425.0 1606.0 View list
2 1070153444 Ballim, S (Salif) 1 1.0 1 0 0 100.0 1266.4 425.0 1691.4 View list
3 1060153693 Burman, D (Daniel) 1 1.0 1 0 0 100.0 1181.0 425.0 1606.0 View list
4 1070301641 Johnson, P (Promise) 1 1.0 1 0 0 100.0 1279.3 425.0 1704.3 View list
5 1090116741 Kekana, N (Neo) 1 1.0 1 0 0 100.0 1266.4 425.0 1691.4 View list
6 1080153700 Kalakonda, S (Sahasra) 1 1.0 1 0 0 100.0 1181.0 425.0 1606.0 View list
7 1100114016 Lamola, T (Tumisho) 1 1.0 1 0 0 100.0 1279.3 425.0 1704.3 View list
8 2140155741 Akole, S (Sara) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
9 1930162776 Masiu, L (Lawrence) 1 1.0 1 0 0 100.0 1266.4 425.0 1691.4 View list
10 1070157109 Mukhari, Z (Zwivhuya) 1 1.0 1 0 0 100.0 1279.3 425.0 1704.3 View list
11 1050153751 Munthree, A (Ashalen) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
12 1060157143 Myburgh, J (Joshua) 1 1.0 1 0 0 100.0 1279.3 425.0 1704.3 View list
13 1070157112 Nkosi, P (Philasande) 1 1.0 1 0 0 100.0 1181.0 425.0 1606.0 View list
14 1050136666 Rampou, O (Oratile) 1 1.0 1 0 0 100.0 1181.0 425.0 1606.0 View list
15 1060136733 Scanes, D (Dentin) 1 1.0 1 0 0 100.0 1279.3 425.0 1704.3 View list
16 1090119738 Shen Yu, F (Frank) 1 1.0 1 0 0 100.0 1154.9 425.0 1579.9 View list
17 1150134491 Soojay, J (Josiah) 1 1.0 1 0 0 100.0 1181.0 425.0 1606.0 View list
18 1170147325 Stelloh, A (Alexander) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
19 1140135557 Thorulsley, K (Kairaav) 1 1.0 1 0 0 100.0 1181.0 425.0 1606.0 View list
20 1160160677 Tshabalala, M (Mluleki) 1 1.0 1 0 0 100.0 1154.9 425.0 1579.9 View list