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: 2024/07/28 (119 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 rating1300.7
Current Weighted rating1268.4
Current Weighted performance1206.2
Current official/published rating (highest between Raw, WR and WP)1300.7
Current highest rating achieved1300.7
Current floor (min rating allowed)800.7
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)±143.7
Current Raw change used (final)0.0
Projected new Raw rating1300.7
Projected new Weighed rating1168.7
Projected new Weighted performance1206.2
Projected new final Raw rating (if new WP > new Raw)1300.7
Projected new highest rating1300.7
Projected new floor800.7
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1300.7
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 rating1281.7
Current Weighted rating1268.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1281.7
Current highest rating achieved1281.7
Current floor (min rating allowed)781.7
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 rating1168.3
Projected new Weighted performance907.1
Projected new final Raw rating (if new WP > new Raw)1281.7
Projected new highest rating1281.7
Projected new floor781.7
Projected new K-facor36
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
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 rating1203.2
Current Weighted rating1178.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1203.2
Current highest rating achieved1203.2
Current floor (min rating allowed)703.2
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)±165.1
Current Raw change used (final)0.0
Projected new Raw rating1203.2
Projected new Weighed rating1083.8
Projected new Weighted performance780.1
Projected new final Raw rating (if new WP > new Raw)1203.2
Projected new highest rating1203.2
Projected new floor703.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1203.2
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 JNW Rapid - Helpmekaar Kollege 2024 2024/07/28 2024/07/28 Johannesburg Metro (GJM) Rapid 15 0.39 7 7 4.0 1271.2 1148.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
5 JNW Rapid - Helpmekaar Kollege 2024 2024/07/28 2024/07/28 Johannesburg Metro (GJM) Rapid 15 0.39 7 7 4.0 1271.2 1148.8 Analysis
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 7 4 0 3 4.0 57.1 60.7 1478.2 1538.9
White 4 4 0 0 4.0 100.0 425.0 1372.5 1797.5
Black 3 0 0 3 0.0 0.0 -425.0 1619.1 1194.1
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 7 4 0 3 4.0 57.1 60.7 1478.2 1538.9
White 4 4 0 0 4.0 100.0 425.0 1372.5 1797.5
Black 3 0 0 3 0.0 0.0 -425.0 1619.1 1194.1
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 28 16 0 12 16.0 57.1 60.7 1302.1 1362.8
White 16 10 0 6 10.0 62.5 106.3 1284.7 1391.0
Black 12 6 0 6 6.0 50.0 0.0 1325.2 1325.2
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 13 6 0 7 6.0 46.2 -32.7 1426.6 1393.9
White 7 5 0 2 5.0 71.4 182.1 1429.9 1612.0
Black 6 1 0 5 1.0 16.7 -283.3 1422.8 1139.5
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 1080148656 Acker, S (Steven) 1 1.0 1 0 0 100.0 1241.9 425.0 1666.9 View list
2 188017699 Lemme, T (Tumelo) 1 1.0 1 0 0 100.0 1273.4 425.0 1698.4 View list
3 1090156316 Kgotse, T (Thoriso) 1 1.0 1 0 0 100.0 1271.2 425.0 1696.2 View list
4 103014718 Jurisich, J (Jared) 1 1.0 1 0 0 100.0 1175.8 425.0 1600.8 View list
5 1050133869 Fragoso, TD (Tshegofatso) 1 1.0 1 0 0 100.0 1271.2 425.0 1696.2 View list
6 2690110065 Dinham, J (Jenny) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
7 2060154129 Malongane, R (Rudzani) 1 1.0 1 0 0 100.0 1175.8 425.0 1600.8 View list
8 1110156277 Mtsweni, T (Thapelo) 1 1.0 1 0 0 100.0 1271.2 425.0 1696.2 View list
9 1090158633 Mphahlele, T (Thabo) 1 1.0 1 0 0 100.0 1175.8 425.0 1600.8 View list
10 1080144534 Moultrey, V (Valentino) 1 1.0 1 0 0 100.0 1273.4 425.0 1698.4 View list
11 1740145613 Parag, Y (Yakesh) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
12 1090136201 Seitei, N (Neo) 1 1.0 1 0 0 100.0 1241.9 425.0 1666.9 View list
13 1990159711 Van Rensburg, J (Jason) 1 1.0 1 0 0 100.0 1175.8 425.0 1600.8 View list
14 1760159712 Van Rensburg, W (Wayne) 1 1.0 1 0 0 100.0 1175.8 425.0 1600.8 View list
15 1080109888 Van Wyk, J (Jonathan) 1 1.0 1 0 0 100.0 1241.9 425.0 1666.9 View list
16 1120132213 Williams, J (Joshua) 1 1.0 1 0 0 100.0 1271.2 425.0 1696.2 View list
17 1020151787 Netshivhulana, R (Ronewa Philip) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
18 211085191 Naidoo, K (Kajol) 1 0.0 0 0 1 0.0 1273.4 -425.0 848.4 View list
19 1970151786 Mwamba, G (Godfrey) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
20 185086005 Matshanisi, I (Itani) 1 0.0 0 0 1 0.0 1273.4 -425.0 848.4 View list