Player Page

Marais, J (Jan-Luc)
Dob: 2004/11/04 (Adult)
Gender: Male
Chess SA id: 1040151783
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2023/12/15 (170 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 rating1271.2
Curent Weighted rating1244.2
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1271.2
Current floor (min rating allowed)773.4
Current highest rating achieved1273.4
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)±149.8
Current Raw change used (final)0.0
Projected new Raw rating1271.2
Projected new Weighed rating1247.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1271.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1273.4
Projected new floor773.4
Projected new K-facor36
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 rating1281.7
Curent Weighted rating1250.1
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1281.7
Current floor (min rating allowed)781.7
Current highest rating achieved1281.7
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)±147.6
Current Raw change used (final)0.0
Projected new Raw rating1281.7
Projected new Weighed rating1254.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1281.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1281.7
Projected new floor781.7
Projected new K-facor36
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 rating1148.8
Curent Weighted rating1174.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1174.9
Current floor (min rating allowed)648.8
Current highest rating achieved1148.8
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)±178.4
Current Raw change used (final)0.0
Projected new Raw rating1148.8
Projected new Weighed rating1172.0
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1172.0
Projected effective change (new Official - current Official)-2.9
Projected new highest rating1148.8
Projected new floor648.8
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 rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)648.8
Current highest rating achieved1200.0
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 rating1200.0
Projected new Weighted performance
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
Projected new highest rating1200.0
Projected new floor648.8
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 Chess Power House Festive Rapid 2023 (B) 2023/12/15 2023/12/15 Johannesburg Metro (GJM) Rapid 20 0.47 6 6 2.0 1273.4 1200.0 Analysis
3 2023 Alekhine Open Tournament (C) 2023/09/09 2023/09/09 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1241.9 1250.4 Analysis
2 2023 Woman's Day Open Chess Tournament (Rook) 2023/08/09 2023/08/09 Tshwane (GTP) Standard 60 0.83 5 5 5.0 1175.8 1170.8 Analysis
1 JNW Open - Crawford 2023 (Adult) 2023/03/04 2023/03/04 Johannesburg Metro (GJM) Standard 60 0.83 5 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 21 12 0 9 12.0 57.1 60.7 1243.4 1304.1
White 12 6 0 6 6.0 50.0 0.0 1255.5 1255.5
Black 9 6 0 3 6.0 66.7 141.7 1227.2 1368.9
Standard All 15 10 0 5 10.0 66.7 141.7 1194.1 1335.8
White 9 5 0 4 5.0 55.6 47.2 1171.8 1219.0
Black 6 5 0 1 5.0 83.3 283.3 1227.6 1510.9
Rapid All 6 2 0 4 2.0 33.3 -141.7 1366.5 1224.8
White 3 1 0 2 1.0 33.3 -141.7 1506.4 1364.7
Black 3 1 0 2 1.0 33.3 -141.7 1226.5 1084.9
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 2690110065 Dinham, J (Jenny) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
2 1080148656 Acker, S (Steven) 1 1.0 1 0 0 100.0 1241.9 425.0 1666.9 View list
3 2060154129 Malongane, R (Rudzani) 1 1.0 1 0 0 100.0 1175.8 425.0 1600.8 View list
4 188017699 Lemme, T (Tumelo) 1 1.0 1 0 0 100.0 1273.4 425.0 1698.4 View list
5 103014718 Jurisich, J (Jared) 1 1.0 1 0 0 100.0 1175.8 425.0 1600.8 View list
6 1090158633 Mphahlele, T (Thabo) 1 1.0 1 0 0 100.0 1175.8 425.0 1600.8 View list
7 1080144534 Moultrey, V (Valentino) 1 1.0 1 0 0 100.0 1273.4 425.0 1698.4 View list
8 1090136201 Seitei, N (Neo) 1 1.0 1 0 0 100.0 1241.9 425.0 1666.9 View list
9 1740145613 Parag, Y (Yakesh) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 1080109888 Van Wyk, J (Jonathan) 1 1.0 1 0 0 100.0 1241.9 425.0 1666.9 View list
11 1760159712 Van Rensburg, W (Wayne) 1 1.0 1 0 0 100.0 1175.8 425.0 1600.8 View list
12 1990159711 Van Rensburg, J (Jason) 1 1.0 1 0 0 100.0 1175.8 425.0 1600.8 View list
13 1980151788 Semukelo, M (Mathe) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
14 1020151787 Netshivhulana, R (Ronewa Philip) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
15 211085191 Naidoo, K (Kajol) 1 0.0 0 0 1 0.0 1273.4 -425.0 848.4 View list
16 1970151786 Mwamba, G (Godfrey) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
17 185086005 Matshanisi, I (Itani) 1 0.0 0 0 1 0.0 1273.4 -425.0 848.4 View list
18 1130152987 Mann, I (Iowan) 1 0.0 0 0 1 0.0 1241.9 -425.0 816.9 View list
19 1030103471 Hansrajh, J (Jitrakorn) 1 0.0 0 0 1 0.0 1273.4 -425.0 848.4 View list
20 1080154177 Grobler, W (Wian) 1 0.0 0 0 1 0.0 1241.9 -425.0 816.9 View list