Player Page

Isaacs, J (Jonathan)
Dob: 2011/05/08 (U14)
Gender: Male
Chess SA id: 1110159747
FIDE id:
Region: Eden (WEG)
Citizen: RSA
Title(s):
Last active: 2024/08/31 (84 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 rating1210.8
Current Weighted rating1196.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1210.8
Current highest rating achieved1210.8
Current floor (min rating allowed)710.8
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)±163.3
Current Raw change used (final)0.0
Projected new Raw rating1210.8
Projected new Weighed rating1100.3
Projected new Weighted performance676.1
Projected new final Raw rating (if new WP > new Raw)1210.8
Projected new highest rating1210.8
Projected new floor710.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1210.8
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 rating1191.8
Current Weighted rating1192.7
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1192.7
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)±167.8
Current Raw change used (final)0.0
Projected new Raw rating1191.8
Projected new Weighed rating1097.2
Projected new Weighted performance327.2
Projected new final Raw rating (if new WP > new Raw)1191.8
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)1191.8
Projected effective change (new Official - current Official)-0.9
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 rating1238.2
Current Weighted rating1206.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1238.2
Current highest rating achieved1238.2
Current floor (min rating allowed)738.2
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)±157.0
Current Raw change used (final)0.0
Projected new Raw rating1238.2
Projected new Weighed rating1109.7
Projected new Weighted performance436.1
Projected new final Raw rating (if new WP > new Raw)1238.2
Projected new highest rating1238.2
Projected new floor738.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1238.2
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.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 Tsogo Sun Moves For Life Learners Tournament 2024 (U13) 2024/08/31 2024/08/31 Eden (WEG) Rapid 20 0.47 6 6 4.0 1192.2 1200.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
3 Tsogo Sun Moves For Life Learners Tournament 2024 (U13) 2024/08/31 2024/08/31 Eden (WEG) Rapid 20 0.47 6 6 4.0 1192.2 1200.0 Analysis
2 Eden Top Schools 2023 (U13 Mix) 2023/08/19 2023/08/19 Eden District (WEG) Standard 60 0.83 5 4 2.0 1199.4 1198.6 Analysis
1 Mossel Bay Top Schools 2023 (U13) 2023/07/29 2023/07/29 Eden District (WEG) Standard 60 0.83 5 2 1.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 6 4 0 2 4.0 66.7 141.7 1205.4 1347.1
White 3 2 0 1 2.0 66.7 141.7 1210.8 1352.5
Black 3 2 0 1 2.0 66.7 141.7 1200.0 1341.7
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 4 0 2 4.0 66.7 141.7 1205.4 1347.1
White 3 2 0 1 2.0 66.7 141.7 1210.8 1352.5
Black 3 2 0 1 2.0 66.7 141.7 1200.0 1341.7
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
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 12 7 0 5 7.0 58.3 70.8 1190.4 1261.3
White 7 4 0 3 4.0 57.1 60.7 1195.7 1256.4
Black 5 3 0 2 3.0 60.0 85.0 1183.0 1268.0
Standard All 6 3 0 3 3.0 50.0 0.0 1175.4 1175.4
White 4 2 0 2 2.0 50.0 0.0 1184.4 1184.4
Black 2 1 0 1 1.0 50.0 0.0 1157.5 1157.5
Rapid All 6 4 0 2 4.0 66.7 141.7 1205.4 1347.1
White 3 2 0 1 2.0 66.7 141.7 1210.8 1352.5
Black 3 2 0 1 2.0 66.7 141.7 1200.0 1341.7
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 1110143702 November, C (Clayton) 1 1.0 1 0 0 100.0 1199.4 425.0 1624.4 View list
2 1110310996 May, N (Nathaniel) 1 1.0 1 0 0 100.0 1192.2 425.0 1617.2 View list
3 2120310995 May, B (Britney) 1 1.0 1 0 0 100.0 1192.2 425.0 1617.2 View list
4 1120193097 Maki, T (Tulani) 1 1.0 1 0 0 100.0 1192.2 425.0 1617.2 View list
5 1110161659 Koopman, G (Giovanni) 1 1.0 1 0 0 100.0 1199.4 425.0 1624.4 View list
6 1110130866 Kannemeyer, J (Juvoghan) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
7 2120310990 James, R (Ruwayda) 1 1.0 1 0 0 100.0 1192.2 425.0 1617.2 View list
8 2110134727 Van Den Heever, A (Anita) 1 0.0 0 0 1 0.0 1199.4 -425.0 774.4 View list
9 1100137880 Phiri, S (Success) 1 0.0 0 0 1 0.0 1199.4 -425.0 774.4 View list
10 1120136808 Philander, C (Curtley) 1 0.0 0 0 1 0.0 1192.2 -425.0 767.2 View list
11 2110130874 Petersen, R (Raynique) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
12 2120310986 Griffiths, J (Janine) 1 0.0 0 0 1 0.0 1192.2 -425.0 767.2 View list