Player Page

Van Zyl, J (Johannes)
Dob: 2011/02/07 (U14)
Gender: Male
Chess SA id: 1110116651
FIDE id:
Region: Overberg (WOS)
Citizen: RSA
Title(s):
Last active: 2023/03/02 (482 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 rating1253.5
Current Weighted rating1252.9
Current Weighted performance1006.6
Current official/published rating (highest between Raw, WR and WP)1253.5
Current highest rating achieved1265.8
Current floor (min rating allowed)765.8
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)±153.6
Current Raw change used (final)0.0
Projected new Raw rating1253.5
Projected new Weighed rating1152.9
Projected new Weighted performance1006.6
Projected new final Raw rating (if new WP > new Raw)1253.5
Projected new highest rating1265.8
Projected new floor765.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1253.5
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 rating1241.8
Current Weighted rating1241.8
Current Weighted performance964.6
Current official/published rating (highest between Raw, WR and WP)1241.8
Current highest rating achieved1267.0
Current floor (min rating allowed)767.0
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)±156.2
Current Raw change used (final)0.0
Projected new Raw rating1241.8
Projected new Weighed rating1142.5
Projected new Weighted performance964.6
Projected new final Raw rating (if new WP > new Raw)1241.8
Projected new highest rating1267.0
Projected new floor767.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1241.8
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 rating1223.2
Current Weighted rating1221.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1223.2
Current highest rating achieved1223.2
Current floor (min rating allowed)723.2
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)±160.4
Current Raw change used (final)0.0
Projected new Raw rating1223.2
Projected new Weighed rating1124.0
Projected new Weighted performance604.8
Projected new final Raw rating (if new WP > new Raw)1223.2
Projected new highest rating1223.2
Projected new floor723.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1223.2
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.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
9 Overberg Schools Bredasdorp Zone Trails 2023 (U13) 2023/02/16 2023/03/02 Overberg (WOS) Rapid 20 0.47 6 3 2.0 1249.1 1208.8 Analysis
8 Western Cape Top Schools 2022 (U11 Mix) 2022/09/16 2022/09/17 Overberg (WOS) Standard 60 0.83 5 5 2.0 1265.8 1267.0 Analysis
7 Overberg Topskole 2022 (O11) 2022/08/30 2022/08/30 Overberg (WOS) Standard 60 0.83 6 4 4.0 1208.4 1196.8 Analysis
6 Western Cape Schools 2022 (U11 Boys) 2022/05/28 2022/05/29 Cape Winelands (WCW) Standard 65 0.85 6 6 2.0 1236.2 1240.4 Analysis
5 The Hermanus Open 2022 (U12) 2022/05/14 2022/05/14 Overberg (WOS) Rapid 10 0.29 6 6 3.0 1236.2 1200.0 Analysis
4 Overberg Primary Schools Closed 2022 (U11 Boys) 2022/03/12 2022/03/12 Overberg (WOS) Standard 60 0.83 5 5 2.5 1236.2 1247.6 Analysis
3 Overberg Closed 2020 (U9 Boys) 2020/03/15 2020/03/15 Overberg (WOS) Standard 60 0.83 5 5 4.0 1144.9 1132.4 Analysis
2 OCF Chess Tournament 3 2020 (U10) 2020/03/07 2020/03/07 Overberg (WOS) Standard 60 0.83 5 5 3.0 1144.9 1132.4 Analysis
1 Overberg Top Schools 2019 (U11) 2019/07/20 2019/07/20 Overberg (WOS) Standard 60 0.83 5 5 1.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main 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
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 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 49 24 1 24 24.5 50.0 0.0 1214.5 1214.5
White 25 15 1 9 15.5 62.0 102.0 1203.9 1305.9
Black 24 9 0 15 9.0 37.5 -106.3 1225.6 1119.4
Standard All 40 19 1 20 19.5 48.8 -10.6 1216.5 1205.9
White 22 12 1 9 12.5 56.8 58.0 1205.6 1263.6
Black 18 7 0 11 7.0 38.9 -94.4 1229.8 1135.3
Rapid All 9 5 0 4 5.0 55.6 47.2 1205.9 1253.1
White 3 3 0 0 3.0 100.0 425.0 1191.2 1616.2
Black 6 2 0 4 2.0 33.3 -141.7 1213.2 1071.5
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 2110133359 Lethabo, F (Fihla) 3 3.0 3 0 0 100.0 1187.2 425.0 1612.2 View list
2 1110133391 Foye, L (Logan) 2 2.0 2 0 0 100.0 1190.6 425.0 1615.6 View list
3 1090110746 Van Der Walt, A (Andries) 2 2.0 2 0 0 100.0 1200.0 425.0 1625.0 View list
4 2080102788 Kok, T (Tilde) 2 0.0 0 0 2 0.0 1200.0 -425.0 775.0 View list
5 1070099829 Lotz, J (Johndre) 2 0.0 0 0 2 0.0 1200.0 -425.0 775.0 View list
6 209088973 Oosthuizen, A (Anke) 2 0.0 0 0 2 0.0 1200.0 -425.0 775.0 View list
7 1120113687 Prinsloo, L (Lyle) 2 0.0 0 0 2 0.0 1190.6 -425.0 765.6 View list
8 2090116647 Zininsi, L (Livi) 2 0.0 0 0 2 0.0 1200.0 -425.0 775.0 View list
9 1110138425 Liebenberg, J (Junior) 1 1.0 1 0 0 100.0 1208.4 425.0 1633.4 View list
10 1120138424 Horne, A (Armandt) 1 1.0 1 0 0 100.0 1236.2 425.0 1661.2 View list
11 1120138422 Groenewald, L (Lian) 1 1.0 1 0 0 100.0 1236.2 425.0 1661.2 View list
12 1120139178 Frieslaar, J (Junior) 1 1.0 1 0 0 100.0 1236.2 425.0 1661.2 View list
13 1110110755 Els, D (Dante) 1 1.0 1 0 0 100.0 1236.2 425.0 1661.2 View list
14 1110130188 Du Plessis, J (Jan-Dawid) 1 1.0 1 0 0 100.0 1144.9 425.0 1569.9 View list
15 1120130328 Drury, R (Riko) 1 1.0 1 0 0 100.0 1144.9 425.0 1569.9 View list
16 2110150081 Diederiks, K (Katryn) 1 1.0 1 0 0 100.0 1236.2 425.0 1661.2 View list
17 2120133356 Beukes, C (Chrizaan) 1 1.0 1 0 0 100.0 1144.9 425.0 1569.9 View list
18 1100151348 Muggels, C (Chadwin) 1 1.0 1 0 0 100.0 1249.1 425.0 1674.1 View list
19 2110138443 Nel, A (Anika) 1 1.0 1 0 0 100.0 1236.2 425.0 1661.2 View list
20 2120118470 Pekeur, T (Thelmay) 1 1.0 1 0 0 100.0 1265.8 425.0 1690.8 View list