Player Page

Coetzee, J (Johan)
Dob: 2009/02/13 (U16)
Gender: Male
Chess SA id: 1090153284
FIDE id:
Region: Sedibeng (GSV)
Citizen: RSA
Title(s):
Last active: 2024/04/13 (225 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 rating1153.8
Current Weighted rating1195.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1195.4
Current highest rating achieved1246.7
Current floor (min rating allowed)746.7
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)±177.1
Current Raw change used (final)0.0
Projected new Raw rating1153.8
Projected new Weighed rating1098.7
Projected new Weighted performance890.5
Projected new final Raw rating (if new WP > new Raw)1153.8
Projected new highest rating1246.7
Projected new floor746.7
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1153.8
Projected effective change (new Official - current Official)-41.6
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 rating1140.6
Current Weighted rating1190.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1190.8
Current highest rating achieved1252.6
Current floor (min rating allowed)752.6
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)±180.5
Current Raw change used (final)0.0
Projected new Raw rating1140.6
Projected new Weighed rating1094.2
Projected new Weighted performance890.5
Projected new final Raw rating (if new WP > new Raw)1140.6
Projected new highest rating1252.6
Projected new floor752.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1140.6
Projected effective change (new Official - current Official)-50.2
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 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
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 Vaalpark Primary Chess Open 2024 (B) 2024/04/13 2024/04/13 Sedibeng (GSV) Standard 60 0.83 5 5 2.0 1179.2 1168.7 Analysis
1 Valia's Open 2024 (B) 2024/03/02 2024/03/02 Sedibeng (GSV) Standard 61 0.84 5 5 0.0 1246.7 1252.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 Vaalpark Primary Chess Open 2024 (B) 2024/04/13 2024/04/13 Sedibeng (GSV) Standard 60 0.83 5 5 2.0 1179.2 1168.7 Analysis
3 Valia's Open 2024 (B) 2024/03/02 2024/03/02 Sedibeng (GSV) Standard 61 0.84 5 5 0.0 1246.7 1252.6 Analysis
2 Valia's Chess Tournament 2023 (C) 2023/05/06 2023/05/06 Sedibeng (GSV) Standard 60 0.83 5 5 3.5 1221.9 1225.6 Analysis
1 Overvaal Open 2023 (C) 2023/04/15 2023/04/15 Sedibeng (GSV) Standard 60 0.83 5 4 2.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 10 2 0 8 2.0 20.0 -255.0 1203.3 948.3
White 5 1 0 4 1.0 20.0 -255.0 1132.8 877.8
Black 5 1 0 4 1.0 20.0 -255.0 1273.7 1018.7
Standard All 10 2 0 8 2.0 20.0 -255.0 1203.3 948.3
White 5 1 0 4 1.0 20.0 -255.0 1132.8 877.8
Black 5 1 0 4 1.0 20.0 -255.0 1273.7 1018.7
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 19 7 2 10 8.0 42.1 -67.1 1208.2 1141.1
White 10 4 0 6 4.0 40.0 -85.0 1164.2 1079.2
Black 9 3 2 4 4.0 44.4 -47.2 1257.1 1209.9
Standard All 19 7 2 10 8.0 42.1 -67.1 1208.2 1141.1
White 10 4 0 6 4.0 40.0 -85.0 1164.2 1079.2
Black 9 3 2 4 4.0 44.4 -47.2 1257.1 1209.9
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 2090119783 Kovuzela, J (Jabulile) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
2 2080151846 Komane, N (Naledi-Promise) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
3 1080143438 Mgwevu, K (Kamohelo) 1 1.0 1 0 0 100.0 1221.9 425.0 1646.9 View list
4 1060302104 Nhose, A (Asemahle Zibusele) 1 1.0 1 0 0 100.0 1179.2 425.0 1604.2 View list
5 1080302090 Sieberhagen, N (Nicolaas) 1 1.0 1 0 0 100.0 1179.2 425.0 1604.2 View list
6 110093070 Van Der Westhuizen, J (Janu) 1 1.0 1 0 0 100.0 1221.9 425.0 1646.9 View list
7 1090117632 Venter, J (James) 1 1.0 1 0 0 100.0 1221.9 425.0 1646.9 View list
8 1090109813 Van Der Westhuizen, L (Leighton) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
9 1080143422 Davids, A (Anton) 1 0.5 0 1 0 50.0 1221.9 0.0 1221.9 View list
10 1090156524 Van Zyl, G (Gerhardus Tj) 1 0.0 0 0 1 0.0 1246.7 -425.0 821.7 View list
11 109089303 Tolmay, L (Llewellyn) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
12 1080160520 Sehularo, T (Tumelo) 1 0.0 0 0 1 0.0 1246.7 -425.0 821.7 View list
13 1080114954 Motsoari, K (Keketso) 1 0.0 0 0 1 0.0 1246.7 -425.0 821.7 View list
14 1090141898 Mojaju, K (Kelebokgile) 1 0.0 0 0 1 0.0 1179.2 -425.0 754.2 View list
15 1090158305 Marimuthu, S (Shaylen) 1 0.0 0 0 1 0.0 1179.2 -425.0 754.2 View list
16 1110139656 Kemp, J (Jowan) 1 0.0 0 0 1 0.0 1221.9 -425.0 796.9 View list
17 2070300145 Gebuza, M (Mbali) 1 0.0 0 0 1 0.0 1246.7 -425.0 821.7 View list
18 1090111233 Farrell, J (Jonty) 1 0.0 0 0 1 0.0 1246.7 -425.0 821.7 View list
19 108081692 Erwee, M (Wiehan) 1 0.0 0 0 1 0.0 1179.2 -425.0 754.2 View list