Player Page

Coetzee, IJ (Ivander Johannes)
Dob: 2008/01/04 (U18)
Gender: Male
Chess SA id: 1080115588
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/04/19 (45 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 rating1191.0
Curent Weighted rating1186.3
Curent Weighted performance722.6
Current official/published rating (highest between Raw, WR and WP)1191.0
Current floor (min rating allowed)731.2
Current highest rating achieved1231.2
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)±168.0
Current Raw change used (final)0.0
Projected new Raw rating1191.0
Projected new Weighed rating1186.7
Projected new Weighted performance722.6
Projected new official/published rating (highest between new Raw, new WR and new WP)1191.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1231.2
Projected new floor731.2
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 rating1176.0
Curent Weighted rating1176.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1176.0
Current floor (min rating allowed)737.2
Current highest rating achieved1237.2
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)±171.6
Current Raw change used (final)0.0
Projected new Raw rating1176.0
Projected new Weighed rating1176.0
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1176.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1237.2
Projected new floor737.2
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 rating1200.7
Curent Weighted rating1200.1
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.7
Current floor (min rating allowed)700.7
Current highest rating achieved1200.7
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)±165.7
Current Raw change used (final)0.0
Projected new Raw rating1200.7
Projected new Weighed rating1200.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1200.7
Projected new floor700.7
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)700.7
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 floor700.7
Projected new K-facor36
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 NWU Super 16 2024 2024/04/19 2024/04/19 Gert Sibande (MGS) Rapid 30 0.60 6 6 3.0 1185.4 1200.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
6 NWU Super 16 2024 2024/04/19 2024/04/19 Gert Sibande (MGS) Rapid 30 0.60 6 6 3.0 1185.4 1200.0 Analysis
5 2020 Wynie Robbertse Open Chess Tournament (U14) 2020/03/07 2020/03/07 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1200.6 1195.1 Analysis
4 2019 South African Junior Team Championships (U12E) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 7 3.5 1206.7 1204.1 Analysis
3 2019 TC SAJCC Prep Tournament (B) 2019/11/30 2019/11/30 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1231.2 1237.2 Analysis
2 2019 D3 Team League (U11) 2019/07/20 2019/07/20 Tshwane (GTP) Standard 60 0.83 5 2 2.0 1201.3 1201.2 Analysis
1 Wonderboom Interhuis 2019 (U11) 2019/05/04 2019/05/04 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 6 3 0 3 3.0 50.0 0.0 1234.4 1234.4
White 4 2 0 2 2.0 50.0 0.0 1247.3 1247.3
Black 2 1 0 1 1.0 50.0 0.0 1208.5 1208.5
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 6 3 0 3 3.0 50.0 0.0 1234.4 1234.4
White 4 2 0 2 2.0 50.0 0.0 1247.3 1247.3
Black 2 1 0 1 1.0 50.0 0.0 1208.5 1208.5
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 30 15 1 14 15.5 51.7 14.2 1184.0 1198.2
White 16 9 0 7 9.0 56.3 53.1 1176.3 1229.5
Black 14 6 1 7 6.5 46.4 -30.4 1192.8 1162.4
Standard All 24 12 1 11 12.5 52.1 17.7 1171.4 1189.1
White 12 7 0 5 7.0 58.3 70.8 1152.7 1223.5
Black 12 5 1 6 5.5 45.8 -35.4 1190.1 1154.7
Rapid All 6 3 0 3 3.0 50.0 0.0 1234.4 1234.4
White 4 2 0 2 2.0 50.0 0.0 1247.3 1247.3
Black 2 1 0 1 1.0 50.0 0.0 1208.5 1208.5
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 1080107166 Oosthuizen, K (Kagan) 2 1.0 1 0 1 50.0 1215.9 0.0 1215.9 View list
2 2080109190 Huang, K (Kayleen) 1 1.0 1 0 0 100.0 1206.7 425.0 1631.7 View list
3 2070115594 Grahan, C (Chie-Ann) 1 1.0 1 0 0 100.0 1200.6 425.0 1625.6 View list
4 1090097516 Frier, E (Edwin) 1 1.0 1 0 0 100.0 1206.7 425.0 1631.7 View list
5 1060113138 Du Randt, Z (Zack) 1 1.0 1 0 0 100.0 1185.4 425.0 1610.4 View list
6 2080115592 Joubert, D (Done) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
7 1080097365 Kriel, D (Devin) 1 1.0 1 0 0 100.0 1185.4 425.0 1610.4 View list
8 1080109131 Klopper, J (Jadin) 1 1.0 1 0 0 100.0 1185.4 425.0 1610.4 View list
9 1090116747 Mnisis, G (George) 1 1.0 1 0 0 100.0 1201.3 425.0 1626.3 View list
10 209082445 Mathabatha, N (Naledi) 1 1.0 1 0 0 100.0 1206.7 425.0 1631.7 View list
11 1070099817 Lujiza, K (Keitumetse) 1 1.0 1 0 0 100.0 1200.6 425.0 1625.6 View list
12 1090100050 Louw, U (Ulrich) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
13 1080116760 Lindokuhle, M (Mahamba) 1 1.0 1 0 0 100.0 1201.3 425.0 1626.3 View list
14 1090115591 Mokrane, M (Maxime) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
15 109095317 Olivier, BM (Barnard) 1 1.0 1 0 0 100.0 1231.2 425.0 1656.2 View list
16 108089379 Olivier, J (Juvandre) 1 0.5 0 1 0 50.0 1206.7 0.0 1206.7 View list
17 206090393 Mokoena, GP (Gonase) 1 0.0 0 0 1 0.0 1231.2 -425.0 806.2 View list
18 108090548 Lewaks, S (Shaundre) 1 0.0 0 0 1 0.0 1206.7 -425.0 781.7 View list
19 108086541 Louw, R (Raynor) 1 0.0 0 0 1 0.0 1200.6 -425.0 775.6 View list
20 108077127 Lotz, L (Leanu) 1 0.0 0 0 1 0.0 1206.7 -425.0 781.7 View list