Player Page

Grobler, JTW (Johannes Theodorus Wessel)
Dob: 2007/06/25 (U18)
Gender: Male
Chess SA id: 107088585
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/04/06 (33 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 rating1498.2
Curent Weighted rating1434.8
Curent Weighted performance1473.2
Current official/published rating (highest between Raw, WR and WP)1498.2
Current floor (min rating allowed)1016.8
Current highest rating achieved1516.8
Current K-factor32
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)±108.4
Current Raw change used (final)0.0
Projected new Raw rating1498.2
Projected new Weighed rating1442.1
Projected new Weighted performance1473.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1498.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1516.8
Projected new floor1016.8
Projected new K-facor32
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 rating1499.1
Curent Weighted rating1425.9
Curent Weighted performance1477.1
Current official/published rating (highest between Raw, WR and WP)1499.1
Current floor (min rating allowed)1010.5
Current highest rating achieved1510.5
Current K-factor32
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)±108.3
Current Raw change used (final)0.0
Projected new Raw rating1499.1
Projected new Weighed rating1434.2
Projected new Weighted performance1477.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1499.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1510.5
Projected new floor1010.5
Projected new K-facor32
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 rating931.2
Curent Weighted rating927.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)931.2
Current floor (min rating allowed)500.0
Current highest rating achieved931.2
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)±243.2
Current Raw change used (final)0.0
Projected new Raw rating931.2
Projected new Weighed rating929.1
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)931.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating931.2
Projected new floor500.0
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 rating500.0
Curent Weighted rating500.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)500.0
Current floor (min rating allowed)500.0
Current highest rating achieved500.0
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)±449.5
Current Raw change used (final)0.0
Projected new Raw rating500.0
Projected new Weighed rating500.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)500.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating500.0
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
5 2024 KSNG CHess Academy Open Tournament (C) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1481.2 1475.4 Analysis
4 2024 Tshwane Chess AHS Open Chess Tournament (B) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1494.2 1486.9 Analysis
3 2024 Blou Bul Open Chess Tournament (B) 2024/02/10 2024/02/10 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1494.2 1486.9 Analysis
2 2024 Piet Robbertse Open Chess Tournament (B) 2024/02/03 2024/02/04 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1494.2 1486.9 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U18A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1443.5 1437.5 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
38 2024 KSNG CHess Academy Open Tournament (C) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1481.2 1475.4 Analysis
37 2024 Tshwane Chess AHS Open Chess Tournament (B) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1494.2 1486.9 Analysis
36 2024 Blou Bul Open Chess Tournament (B) 2024/02/10 2024/02/10 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1494.2 1486.9 Analysis
35 2024 Piet Robbertse Open Chess Tournament (B) 2024/02/03 2024/02/04 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1494.2 1486.9 Analysis
34 2024 Gauteng Inter-Region Chess Championship (U18A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1443.5 1437.5 Analysis
33 2023 Moja Chess Extravaganza (B) 2023/09/30 2023/10/04 Frances Baard (NCF) Standard 120 1.00 9 8 2.5 1516.8 1510.5 Analysis
32 2023 Alekhine Open Tournament (B) 2023/09/09 2023/09/10 Tshwane (GTP) Standard 90 0.94 5 4 3.5 1426.3 1430.4 Analysis
31 2023 Etienne Lewis Closed Tournament (U18+U20) 2023/08/25 2023/08/27 Tshwane (GTP) Standard 90 0.94 7 7 5.5 1365.2 1353.4 Analysis
30 2023 Gauteng Top Schools (U19 Mixed) 2023/08/19 2023/08/19 West Rand (GWR) Standard 60 0.83 5 5 3.0 1365.2 1353.4 Analysis
29 2023 Tshwane South School District CLOSED League Championship (U19) 2023/07/29 2023/07/29 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1370.2 1360.2 Analysis
28 2023 Mid Gauteng Open Tournament (B) 2023/05/06 2023/05/06 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1342.8 1317.0 Analysis
27 2023 Tshwane South School District CLOSED Individual Championships (U18 Open) 2023/04/22 2023/04/22 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1382.4 1368.5 Analysis
26 Silver Lakes Open Chess Tournament (B) 2023/04/15 2023/04/15 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1382.4 1368.5 Analysis
25 Chris Greyling Open Tournament 2023 (B) 2023/03/21 2023/03/21 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1378.4 1353.7 Analysis
24 2023 Afrikaans Hoër Seunskool Open Chess Tournament (B) 2023/03/04 2023/03/04 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1378.4 1353.7 Analysis
23 Grey College Team Championship 2023 (A) 2023/02/03 2023/02/04 Mangaung (FMB) Standard 60 0.83 5 5 3.0 1391.7 1370.6 Analysis
22 2023 Tshwane Chess Open Registration Tournament (B1) 2023/01/28 2023/01/28 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1403.4 1383.9 Analysis
21 2022 South African Junior Team Chess Championships (U16 Open) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 7 4.5 1393.0 1367.3 Analysis
20 2022 Wynie Robbertse Open (C) 2022/10/08 2022/10/08 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1366.4 1327.0 Analysis
19 Afrikaanse Hoër Seunskool Interne Skaak KampioenskAP 2022 2022/09/22 2022/09/22 Tshwane (GTP) Rapid 25 0.54 7 7 5.5 1305.3 721.2 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 25 14 3 8 15.5 62.0 102.0 1431.4 1533.4
White 14 7 2 5 8.0 57.1 60.7 1432.4 1493.1
Black 11 7 1 3 7.5 68.2 154.5 1430.1 1584.6
Standard All 25 14 3 8 15.5 62.0 102.0 1431.4 1533.4
White 14 7 2 5 8.0 57.1 60.7 1432.4 1493.1
Black 11 7 1 3 7.5 68.2 154.5 1430.1 1584.6
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
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 203 103 33 67 119.5 58.9 75.4 1292.4 1367.8
White 101 53 19 29 62.5 61.9 101.0 1301.0 1402.0
Black 102 50 14 38 57.0 55.9 50.0 1283.9 1333.9
Standard All 184 92 30 62 107.0 58.2 69.3 1299.6 1368.8
White 92 47 17 28 55.5 60.3 87.8 1306.4 1394.2
Black 92 45 13 34 51.5 56.0 50.8 1292.7 1343.5
Rapid All 19 11 3 5 12.5 65.8 134.2 1223.0 1357.2
White 9 6 2 1 7.0 77.8 236.1 1245.4 1481.5
Black 10 5 1 4 5.5 55.0 42.5 1202.8 1245.3
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 1090098574 Gounder, A (Arun) 3 3.0 3 0 0 100.0 1387.5 425.0 1812.5 View list
2 2060097845 Venter, Z (Zanri) 3 2.0 2 0 1 66.7 1173.0 141.7 1314.6 View list
3 107078866 Ferreira, H (Hechter) 3 0.5 0 1 2 16.7 1307.0 -283.3 1023.7 View list
4 188026981 Ndubane, D (Dumsane) 3 0.5 0 1 2 16.7 1309.1 -283.3 1025.8 View list
5 108052034 Du Toit, SJM (Stephanus (Matteo)) 3 0.0 0 0 3 0.0 1346.5 -425.0 921.5 View list
6 2120111139 Maharaj, A (Aditi) 2 2.0 2 0 0 100.0 1356.6 425.0 1781.6 View list
7 1080130090 Matsioloko, O (Osega) 2 2.0 2 0 0 100.0 1437.1 425.0 1862.1 View list
8 1120119689 Rust, C (Christoph) 2 2.0 2 0 0 100.0 1494.2 425.0 1919.2 View list
9 171036861 Swanepoel, K (Karel) 2 2.0 2 0 0 100.0 1312.8 425.0 1737.8 View list
10 108082684 De Vries, MA (Andrio) 2 1.5 1 1 0 75.0 1337.8 212.5 1550.3 View list
11 2110141710 Dikolomela, T (Tlhogi) 2 1.5 1 1 0 75.0 1418.5 212.5 1631.0 View list
12 107079041 Crause, M (Mynhardt) 2 1.0 1 0 1 50.0 985.0 0.0 985.0 View list
13 106095058 Dippenaar, A (Adriaan) 2 1.0 1 0 1 50.0 828.3 0.0 828.3 View list
14 1110096784 Radia, S (Shyam) 2 1.0 1 0 1 50.0 1378.4 0.0 1378.4 View list
15 1060099976 Wilson, P (Petrus Johannes) 2 1.0 1 0 1 50.0 747.8 0.0 747.8 View list
16 108090807 Mcphail, R (Ryan) 2 1.0 0 2 0 50.0 1341.8 0.0 1341.8 View list
17 105029423 Pasaribu, M (Matthew) 2 0.5 0 1 1 25.0 1360.6 -212.5 1148.1 View list
18 1090146030 Stephen, B (Bulelani) 2 0.0 0 0 2 0.0 1438.3 -425.0 1013.3 View list
19 175000249 Adamson, LJ (Luke) 1 1.0 1 0 0 100.0 1494.2 425.0 1919.2 View list
20 1080115486 Davids, M (Mac-William) 1 1.0 1 0 0 100.0 671.6 425.0 1096.6 View list