Player Page

Posthumus, J (Jan)
Dob: 1995/07/23 (Adult)
Gender: Male
Chess SA id: 1950147710
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2022/12/18 (520 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 rating1164.0
Curent Weighted rating1166.4
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1166.4
Current floor (min rating allowed)693.3
Current highest rating achieved1193.3
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)±174.5
Current Raw change used (final)0.0
Projected new Raw rating1164.0
Projected new Weighed rating1165.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1165.7
Projected effective change (new Official - current Official)-0.7
Projected new highest rating1193.3
Projected new floor693.3
Projected new K-facor40
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 rating1194.8
Curent Weighted rating1195.2
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1195.2
Current floor (min rating allowed)694.8
Current highest rating achieved1194.8
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)±167.0
Current Raw change used (final)0.0
Projected new Raw rating1194.8
Projected new Weighed rating1195.1
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1195.1
Projected effective change (new Official - current Official)-0.1
Projected new highest rating1194.8
Projected new floor694.8
Projected new K-facor40
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 rating1096.4
Curent Weighted rating1102.6
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1102.6
Current floor (min rating allowed)648.4
Current highest rating achieved1148.4
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)±192.2
Current Raw change used (final)0.0
Projected new Raw rating1096.4
Projected new Weighed rating1100.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1100.7
Projected effective change (new Official - current Official)-1.9
Projected new highest rating1148.4
Projected new floor648.4
Projected new K-facor40
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 rating1300.0
Curent Weighted rating1236.7
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1300.0
Current floor (min rating allowed)648.4
Current highest rating achieved1300.0
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)±143.8
Current Raw change used (final)0.0
Projected new Raw rating1300.0
Projected new Weighed rating1243.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1300.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1300.0
Projected new floor648.4
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
3 Kraaifontein Open 2022 (Intermediate) 2022/12/17 2022/12/18 Cape Town (WCT) Standard 70 0.87 6 3 1.0 1193.3 1200.0 Analysis
2 Kraaifontein Rapid Open 2022 (Open) 2022/12/16 2022/12/16 Cape Town (WCT) Rapid 30 0.60 6 5 1.0 1193.3 1148.4 Analysis
1 Kenridge Rapid 2022 (B) 2022/11/05 2022/11/05 Cape Town (WCT) Rapid 25 0.54 6 5 2.0 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 13 4 0 9 4.0 30.8 -163.5 1258.8 1095.3
White 7 2 0 5 2.0 28.6 -182.1 1297.3 1115.1
Black 6 2 0 4 2.0 33.3 -141.7 1213.9 1072.3
Standard All 3 1 0 2 1.0 33.3 -141.7 1374.2 1232.5
White 2 0 0 2 0.0 0.0 -425.0 1424.1 999.1
Black 1 1 0 0 1.0 100.0 425.0 1274.4 1699.4
Rapid All 10 3 0 7 3.0 30.0 -170.0 1224.2 1054.2
White 5 2 0 3 2.0 40.0 -85.0 1246.6 1161.6
Black 5 1 0 4 1.0 20.0 -255.0 1201.8 946.8
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 1060097568 Mizen, D (Daniel) 2 0.0 0 0 2 0.0 1196.7 -425.0 771.7 View list
2 1110140733 Ngidi, N (Ndumiso) 1 1.0 1 0 0 100.0 1193.3 425.0 1618.3 View list
3 1070148244 Brink, K (Kiran) 1 1.0 1 0 0 100.0 1193.3 425.0 1618.3 View list
4 2030107204 Osborne, N (Nicole) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 1080119841 Strydom, B (Barry) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
6 1050148246 Van Staden, J (Julian) 1 0.0 0 0 1 0.0 1193.3 -425.0 768.3 View list
7 1150137343 Stern, M (Mason) 1 0.0 0 0 1 0.0 1193.3 -425.0 768.3 View list
8 211087036 Osborne, H (Hannah) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
9 1070138643 Louw, J (Jean-Francois) 1 0.0 0 0 1 0.0 1193.3 -425.0 768.3 View list
10 107064487 Lee, MJ (Muhammad) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
11 2070148245 Hayward, C (Catherine) 1 0.0 0 0 1 0.0 1193.3 -425.0 768.3 View list
12 1120140113 Guo, A (Aleks) 1 0.0 0 0 1 0.0 1193.3 -425.0 768.3 View list