Player Page

Marais, J (Johann)
Dob: 2003/09/18 (Adult)
Gender: Male
Chess SA id: 103020761
FIDE id:
Region: Bojanala Platina (NBR)
Citizen: RSA
Title(s):
Last active: 2020/01/11 (1777 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 rating994.1
Current Weighted rating994.1
Current Weighted performance316.6
Current official/published rating (highest between Raw, WR and WP)994.1
Current highest rating achieved994.1
Current floor (min rating allowed)500.0
Current K-factor40
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)±222.3
Current Raw change used (final)0.0
Projected new Raw rating994.1
Projected new Weighed rating914.6
Projected new Weighted performance316.6
Projected new final Raw rating (if new WP > new Raw)994.1
Projected new highest rating994.1
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)994.1
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 rating997.4
Current Weighted rating997.4
Current Weighted performance316.6
Current official/published rating (highest between Raw, WR and WP)997.4
Current highest rating achieved997.4
Current floor (min rating allowed)500.0
Current K-factor40
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)±221.3
Current Raw change used (final)0.0
Projected new Raw rating997.4
Projected new Weighed rating917.6
Projected new Weighted performance316.6
Projected new final Raw rating (if new WP > new Raw)997.4
Projected new highest rating997.4
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)997.4
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 rating862.6
Current Weighted rating862.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)862.6
Current highest rating achieved862.6
Current floor (min rating allowed)500.0
Current K-factor40
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)±268.2
Current Raw change used (final)0.0
Projected new Raw rating862.6
Projected new Weighed rating793.6
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating862.6
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)862.6
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 rating862.6
Current Weighted rating862.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)862.6
Current highest rating achieved862.6
Current floor (min rating allowed)500.0
Current K-factor40
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)±268.2
Current Raw change used (final)0.0
Projected new Raw rating862.6
Projected new Weighed rating793.6
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating862.6
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)862.6
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
5 2019 South African Top Schools Team Championships (U15+U17 Open) 2020/01/10 2020/01/11 4 Knights (4K) Standard 90 0.94 5 3 2.0 939.2 939.0 Analysis
4 South African Junior Team Championships 2018 (U16D) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 6 5.0 832.4 831.0 Analysis
3 Laerskool Rustenburg 2018 (B) 2018/03/24 2018/03/24 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.0 838.0 833.0 Analysis
2 Hoerskool Brits 2018 (U16) 2018/03/17 2018/03/17 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.0 838.0 833.0 Analysis
1 Laerskool Rustenburg Noord Primary 2018 (B) 2018/02/24 2018/02/24 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.0 862.6 862.6 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 24 13 0 11 13.0 54.2 35.4 938.5 974.0
White 13 8 0 5 8.0 61.5 98.1 920.2 1018.3
Black 11 5 0 6 5.0 45.5 -38.6 960.2 921.5
Standard All 24 13 0 11 13.0 54.2 35.4 938.5 974.0
White 13 8 0 5 8.0 61.5 98.1 920.2 1018.3
Black 11 5 0 6 5.0 45.5 -38.6 960.2 921.5
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 104045949 Serobe, R (Reatlehile) 2 0.0 0 0 2 0.0 850.3 -425.0 425.3 View list
2 205054730 Du Preez, L (Lienke) 1 1.0 1 0 0 100.0 838.0 425.0 1263.0 View list
3 105006947 De Wet, J (Juan) 1 1.0 1 0 0 100.0 939.2 425.0 1364.2 View list
4 104055604 Davis, J (Julian) 1 1.0 1 0 0 100.0 832.4 425.0 1257.4 View list
5 1050107669 Finnis, B (Bongani) 1 1.0 1 0 0 100.0 832.4 425.0 1257.4 View list
6 106061709 Mthembu, S (Siyabulela) 1 1.0 1 0 0 100.0 832.4 425.0 1257.4 View list
7 105075130 Moroke, T (Thari) 1 1.0 1 0 0 100.0 862.6 425.0 1287.6 View list
8 1040105642 Rasetlola, O (Oageng) 1 1.0 1 0 0 100.0 939.2 425.0 1364.2 View list
9 105050616 Tsitsi, LB (Lesedi) 1 1.0 1 0 0 100.0 838.0 425.0 1263.0 View list
10 208069892 Treadwell, N (Nadia) 1 1.0 1 0 0 100.0 838.0 425.0 1263.0 View list
11 102037023 Swart, MD (Michiel) 1 1.0 1 0 0 100.0 862.6 425.0 1287.6 View list
12 1030099310 Mans, AJ (Andries) 1 1.0 1 0 0 100.0 838.0 425.0 1263.0 View list
13 103079757 Venter, H (Henco) 1 1.0 1 0 0 100.0 832.4 425.0 1257.4 View list
14 104047041 Warland, G (Graeme) 1 1.0 1 0 0 100.0 832.4 425.0 1257.4 View list
15 104015312 Kgomo, T (Thato) 1 0.0 0 0 1 0.0 838.0 -425.0 413.0 View list
16 203065158 Rabe, L (Liza-Mari) 1 0.0 0 0 1 0.0 838.0 -425.0 413.0 View list
17 104026800 Nayagar, V (Veshaan) 1 0.0 0 0 1 0.0 939.2 -425.0 514.2 View list
18 105054689 Matomane, L (Landa) 1 0.0 0 0 1 0.0 838.0 -425.0 413.0 View list
19 107086171 Masike, O (Olerato) 1 0.0 0 0 1 0.0 838.0 -425.0 413.0 View list
20 100086567 Du Preez, W (Wessel) 1 0.0 0 0 1 0.0 838.0 -425.0 413.0 View list