Player Page

Koert, I (Isaac)
Dob: 2006/01/01 (U20)
Gender: Male
Chess SA id: 1060132969
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2024/07/27 (120 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 rating1362.9
Current Weighted rating1314.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1362.9
Current highest rating achieved1362.9
Current floor (min rating allowed)862.9
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)±131.5
Current Raw change used (final)0.0
Projected new Raw rating1362.9
Projected new Weighed rating1210.5
Projected new Weighted performance1198.7
Projected new final Raw rating (if new WP > new Raw)1362.9
Projected new highest rating1362.9
Projected new floor862.9
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1362.9
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 rating1332.1
Current Weighted rating1309.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1332.1
Current highest rating achieved1332.1
Current floor (min rating allowed)832.1
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)±137.4
Current Raw change used (final)0.0
Projected new Raw rating1332.1
Projected new Weighed rating1205.6
Projected new Weighted performance635.2
Projected new final Raw rating (if new WP > new Raw)1332.1
Projected new highest rating1332.1
Projected new floor832.1
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1332.1
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 rating1306.1
Current Weighted rating1251.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1306.1
Current highest rating achieved1306.1
Current floor (min rating allowed)806.1
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)±142.6
Current Raw change used (final)0.0
Projected new Raw rating1306.1
Projected new Weighed rating1153.2
Projected new Weighted performance857.9
Projected new final Raw rating (if new WP > new Raw)1306.1
Projected new highest rating1306.1
Projected new floor806.1
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1306.1
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 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
2 CT District North Top Schools 2024 (U18 Mixed) 2024/07/27 2024/07/27 Cape Town (WCT) Rapid 30 0.60 5 4 4.0 1324.7 1238.8 Analysis
1 North District School Trials 2024 (U18 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 3.5 1274.8 1275.2 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 CT District North Top Schools 2024 (U18 Mixed) 2024/07/27 2024/07/27 Cape Town (WCT) Rapid 30 0.60 5 4 4.0 1324.7 1238.8 Analysis
3 North District School Trials 2024 (U18 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 3.5 1274.8 1275.2 Analysis
2 Chess@libraries 2023 2023/10/05 2023/10/05 Cape Town (WCT) Rapid 15 0.39 6 6 4.0 1263.7 1200.0 Analysis
1 2020 Western Province Open (Development) 2020/03/07 2020/03/07 Cape Town (WCT) Standard 60 0.83 5 5 4.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 9 7 1 1 7.5 83.3 283.3 1342.3 1625.7
White 5 4 0 1 4.0 80.0 255.0 1344.8 1599.8
Black 4 3 1 0 3.5 87.5 318.8 1339.2 1658.0
Standard All 5 3 1 1 3.5 70.0 170.0 1395.8 1565.8
White 3 2 0 1 2.0 66.7 141.7 1433.6 1575.3
Black 2 1 1 0 1.5 75.0 212.5 1339.2 1551.7
Rapid All 4 4 0 0 4.0 100.0 425.0 1275.4 1700.4
White 2 2 0 0 2.0 100.0 425.0 1211.7 1636.7
Black 2 2 0 0 2.0 100.0 425.0 1339.2 1764.2
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 20 15 2 3 16.0 80.0 255.0 1268.7 1523.7
White 10 6 1 3 6.5 65.0 127.5 1298.6 1426.1
Black 10 9 1 0 9.5 95.0 382.5 1238.7 1621.2
Standard All 10 7 2 1 8.0 80.0 255.0 1287.3 1542.3
White 5 3 1 1 3.5 70.0 170.0 1352.8 1522.8
Black 5 4 1 0 4.5 90.0 340.0 1221.8 1561.8
Rapid All 10 8 0 2 8.0 80.0 255.0 1250.0 1505.0
White 5 3 0 2 3.0 60.0 85.0 1244.4 1329.4
Black 5 5 0 0 5.0 100.0 425.0 1255.7 1680.7
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 1100109823 Calitz, J (Joey) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
2 108095313 Somai, R (Ruhan) 1 1.0 1 0 0 100.0 1274.8 425.0 1699.8 View list
3 108061379 Solomon, D (Daniel) 1 1.0 1 0 0 100.0 1274.8 425.0 1699.8 View list
4 1130162742 Wilson, L (Leighton) 1 1.0 1 0 0 100.0 1263.7 425.0 1688.7 View list
5 1070138709 Williams, R (Reinaert) 1 1.0 1 0 0 100.0 1324.7 425.0 1749.7 View list
6 1080190263 Watson, C (Cole) 1 1.0 1 0 0 100.0 1324.7 425.0 1749.7 View list
7 1080131003 Isaacs, Z (Zeiyaad) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
8 1070162715 Hendricks, Y (Yusuf) 1 1.0 1 0 0 100.0 1263.7 425.0 1688.7 View list
9 1090162713 Hay, L (Luqmaan) 1 1.0 1 0 0 100.0 1263.7 425.0 1688.7 View list
10 1070150556 Simayile, I (Isiphilinkosi) 1 1.0 1 0 0 100.0 1274.8 425.0 1699.8 View list
11 1070131795 September, J (Jordan) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
12 1070108007 Muyaya, M (Merlin) 1 1.0 1 0 0 100.0 1324.7 425.0 1749.7 View list
13 1100162731 Mthlnianu, O (Onga) 1 1.0 1 0 0 100.0 1263.7 425.0 1688.7 View list
14 1060190245 Mdunyelwa, L (Litha) 1 1.0 1 0 0 100.0 1324.7 425.0 1749.7 View list
15 1090117960 Matthee, M (Matthew) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
16 103054508 Kim, T (Tae Heon) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
17 108092101 Dicks, D (Drake) 1 0.5 0 1 0 50.0 1274.8 0.0 1274.8 View list
18 107061440 Van Staaden, D (Darren) 1 0.0 0 0 1 0.0 1274.8 -425.0 849.8 View list
19 1950162737 Sinalo, M (Mudau) 1 0.0 0 0 1 0.0 1263.7 -425.0 838.7 View list
20 100086060 Adams, K (Keenan) 1 0.0 0 0 1 0.0 1263.7 -425.0 838.7 View list