Player Page

Viljoen, JA (Jacobus)
Dob: 1971/12/07 (Adult)
Gender: Male
Chess SA id: 171041756
FIDE id:
Region: Dr Kenneth Kaunda (NWP)
Citizen: RSA
Title(s):
Last active: 2024/03/02 (265 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 rating1262.3
Current Weighted rating1242.7
Current Weighted performance1109.7
Current official/published rating (highest between Raw, WR and WP)1262.3
Current highest rating achieved1262.3
Current floor (min rating allowed)762.3
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)±151.7
Current Raw change used (final)0.0
Projected new Raw rating1262.3
Projected new Weighed rating1145.7
Projected new Weighted performance1109.7
Projected new final Raw rating (if new WP > new Raw)1262.3
Projected new highest rating1262.3
Projected new floor762.3
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1262.3
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 rating1266.2
Current Weighted rating1245.7
Current Weighted performance1109.7
Current official/published rating (highest between Raw, WR and WP)1266.2
Current highest rating achieved1266.2
Current floor (min rating allowed)766.2
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)±150.9
Current Raw change used (final)0.0
Projected new Raw rating1266.2
Projected new Weighed rating1148.4
Projected new Weighted performance1109.7
Projected new final Raw rating (if new WP > new Raw)1266.2
Projected new highest rating1266.2
Projected new floor766.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1266.2
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 rating1100.0
Current Weighted rating1100.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1100.0
Current highest rating achieved1100.0
Current floor (min rating allowed)600.0
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)±191.2
Current Raw change used (final)0.0
Projected new Raw rating1100.0
Projected new Weighed rating1012.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1100.0
Projected new floor600.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1100.0
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 rating1100.0
Current Weighted rating1100.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1100.0
Current highest rating achieved1100.0
Current floor (min rating allowed)600.0
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)±191.2
Current Raw change used (final)0.0
Projected new Raw rating1100.0
Projected new Weighed rating1012.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1100.0
Projected new floor600.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1100.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 DR KKD Ferdies Mar 2024 (A) 2024/03/02 2024/03/02 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 2.0 1240.2 1240.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
7 DR KKD Ferdies Mar 2024 (A) 2024/03/02 2024/03/02 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 2.0 1240.2 1240.6 Analysis
6 DR Kenneth Kaunda Volkies 29 Jul 2023 (A) 2023/07/29 2023/07/29 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 4 1.0 1184.3 1198.8 Analysis
5 Dr Kenneth Kaunda Volkies 2023 (A+B) 2023/06/10 2023/06/10 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 2.0 1153.1 1164.4 Analysis
4 Dr KKD Curro 2023 (Open) 2023/05/13 2023/05/13 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 3.0 1124.2 1129.2 Analysis
3 DR Kenneth Kaunda Curro 2023 (A+B) 2023/04/22 2023/04/22 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 4 1.0 1111.3 1114.8 Analysis
2 Dr. Kenneth Kaunda Saamtrek 2023 (Open) 2023/02/04 2023/02/04 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 4 2.0 1081.1 1077.2 Analysis
1 La Hoff Primary School 2022 (A) 2022/07/23 2022/07/23 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 2 0.0 1100.0 1100.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 5 1 2 2 2.0 40.0 -85.0 1459.4 1374.4
White 3 0 2 1 1.0 33.3 -141.7 1494.1 1352.4
Black 2 1 0 1 1.0 50.0 0.0 1407.5 1407.5
Standard All 5 1 2 2 2.0 40.0 -85.0 1459.4 1374.4
White 3 0 2 1 1.0 33.3 -141.7 1494.1 1352.4
Black 2 1 0 1 1.0 50.0 0.0 1407.5 1407.5
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
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 29 10 2 17 11.0 37.9 -102.6 1358.6 1256.0
White 16 5 2 9 6.0 37.5 -106.3 1350.4 1244.1
Black 13 5 0 8 5.0 38.5 -98.1 1368.7 1270.6
Standard All 29 10 2 17 11.0 37.9 -102.6 1358.6 1256.0
White 16 5 2 9 6.0 37.5 -106.3 1350.4 1244.1
Black 13 5 0 8 5.0 38.5 -98.1 1368.7 1270.6
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 106060952 Viljoen, J (Jaden) 4 0.0 0 0 4 0.0 1122.1 -425.0 697.1 View list
2 163041563 Vermeulen, EJ (Ernestus) 2 0.0 0 0 2 0.0 1168.7 -425.0 743.7 View list
3 107059584 Molusi, K (Katlego) 2 0.0 0 0 2 0.0 1196.7 -425.0 771.7 View list
4 188072563 Libisi, L (Libisi) 2 0.0 0 0 2 0.0 1182.2 -425.0 757.2 View list
5 207078376 Goede, K (Kari) 2 0.0 0 0 2 0.0 1147.8 -425.0 722.8 View list
6 2760157781 Du Plessis, P (Petro) 1 1.0 1 0 0 100.0 1153.1 425.0 1578.1 View list
7 1070149611 Anele, H (Handa) 1 1.0 1 0 0 100.0 1081.1 425.0 1506.1 View list
8 204047328 Fourie, EM (Elzette) 1 1.0 1 0 0 100.0 1153.1 425.0 1578.1 View list
9 2090106836 Meyambo, U (Unathi) 1 1.0 1 0 0 100.0 1240.2 425.0 1665.2 View list
10 108069802 Mazinyo, M (Mpumelelo) 1 1.0 1 0 0 100.0 1111.3 425.0 1536.3 View list
11 1030154530 Manhenda, F (Farai) 1 1.0 1 0 0 100.0 1124.2 425.0 1549.2 View list
12 103020189 Malherbe, GM (Gideon) 1 1.0 1 0 0 100.0 1124.2 425.0 1549.2 View list
13 108072965 Hattingh, JH (Johannes) 1 1.0 1 0 0 100.0 1184.3 425.0 1609.3 View list
14 1040149620 Selebalo, L (Lefang) 1 1.0 1 0 0 100.0 1081.1 425.0 1506.1 View list
15 1040154532 Segobola, K (Kgashane) 1 1.0 1 0 0 100.0 1124.2 425.0 1549.2 View list
16 168086019 Faku, M (Maphasa) 1 0.5 0 1 0 50.0 1240.2 0.0 1240.2 View list
17 1110134010 Van Meersbergen, E (Ettienne) 1 0.5 0 1 0 50.0 1240.2 0.0 1240.2 View list
18 1100117896 Myburgh, Z (Zandre) 1 0.0 0 0 1 0.0 1111.3 -425.0 686.3 View list
19 1920136386 Molaolwa, O (Ogone) 1 0.0 0 0 1 0.0 1081.1 -425.0 656.1 View list
20 194045554 Mafabatho, TH (Thapelo) 1 0.0 0 0 1 0.0 1081.1 -425.0 656.1 View list