Player Page

Van Der Berg, J (Jay)
Dob: 1998/07/25 (Adult)
Gender: Male
Chess SA id: 1980149135
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2024/03/23 (174 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 rating1208.1
Current Weighted rating1206.8
Current Weighted performance1081.9
Current official/published rating (highest between Raw, WR and WP)1208.1
Current highest rating achieved1232.4
Current floor (min rating allowed)732.4
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)±163.9
Current Raw change used (final)0.0
Projected new Raw rating1208.1
Projected new Weighed rating1110.1
Projected new Weighted performance1081.9
Projected new final Raw rating (if new WP > new Raw)1208.1
Projected new highest rating1232.4
Projected new floor732.4
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1208.1
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 rating1186.4
Current Weighted rating1184.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1186.4
Current highest rating achieved1186.4
Current floor (min rating allowed)686.4
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)±169.1
Current Raw change used (final)0.0
Projected new Raw rating1186.4
Projected new Weighed rating1089.5
Projected new Weighted performance987.7
Projected new final Raw rating (if new WP > new Raw)1186.4
Projected new highest rating1186.4
Projected new floor686.4
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1186.4
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 rating1226.4
Current Weighted rating1225.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1226.4
Current highest rating achieved1226.4
Current floor (min rating allowed)726.4
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)±159.7
Current Raw change used (final)0.0
Projected new Raw rating1226.4
Projected new Weighed rating1127.8
Projected new Weighted performance386.1
Projected new final Raw rating (if new WP > new Raw)1226.4
Projected new highest rating1226.4
Projected new floor726.4
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1226.4
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 rating1263.3
Current Weighted rating1244.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1263.3
Current highest rating achieved1300.0
Current floor (min rating allowed)800.0
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)±151.5
Current Raw change used (final)0.0
Projected new Raw rating1263.3
Projected new Weighed rating1146.0
Projected new Weighted performance412.4
Projected new final Raw rating (if new WP > new Raw)1263.3
Projected new highest rating1300.0
Projected new floor800.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1263.3
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 Wanderers Blitz Tournament 2024 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Blitz 8 0.25 9 9 3.5 1201.0 1300.0 Analysis
1 JMC Kick Off Tournament 2024 (B) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1187.3 1163.2 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
6 Wanderers Blitz Tournament 2024 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Blitz 8 0.25 9 9 3.5 1201.0 1300.0 Analysis
5 JMC Kick Off Tournament 2024 (B) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1187.3 1163.2 Analysis
4 Africawide Chess Championship 2023 (Open) 2023/11/03 2023/11/05 Johannesburg Metro (GJM) Standard 90 0.94 7 6 0.5 1211.7 1186.4 Analysis
3 JNW Open - Trinityhouse Little Falls 2023 (B) 2023/06/24 2023/06/24 Johannesburg Metro (GJM) Standard 60 0.83 5 5 1.0 1232.4 1200.0 Analysis
2 Randburg Winter Swiss 2023 2023/06/13 2023/07/25 Johannesburg Metro (GJM) Standard 90 0.94 7 7 2.0 1217.5 1184.8 Analysis
1 Mzansi Rapid 2023 (Intermediate) 2023/02/04 2023/02/04 Johannesburg Metro (GJM) Rapid 25 0.54 6 5 3.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 14 5 1 8 5.5 39.3 -91.1 1386.8 1295.7
White 7 2 0 5 2.0 28.6 -182.1 1314.0 1131.8
Black 7 3 1 3 3.5 50.0 0.0 1459.7 1459.7
Standard All 5 2 0 3 2.0 40.0 -85.0 1345.0 1260.0
White 2 0 0 2 0.0 0.0 -425.0 1299.5 874.5
Black 3 2 0 1 2.0 66.7 141.7 1375.4 1517.1
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 9 3 1 5 3.5 38.9 -94.4 1410.0 1315.6
White 5 2 0 3 2.0 40.0 -85.0 1319.8 1234.8
Black 4 1 1 2 1.5 37.5 -106.3 1522.8 1416.6
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 37 11 2 24 12.0 32.4 -149.3 1398.3 1249.0
White 18 6 0 12 6.0 33.3 -141.7 1370.6 1229.0
Black 19 5 2 12 6.0 31.6 -156.6 1424.5 1267.9
Standard All 23 5 1 17 5.5 23.9 -221.7 1401.0 1179.3
White 11 3 0 8 3.0 27.3 -193.2 1387.6 1194.5
Black 12 2 1 9 2.5 20.8 -247.9 1413.3 1165.3
Rapid All 5 3 0 2 3.0 60.0 85.0 1364.8 1449.8
White 2 1 0 1 1.0 50.0 0.0 1404.3 1404.3
Black 3 2 0 1 2.0 66.7 141.7 1338.4 1480.0
Blitz All 9 3 1 5 3.5 38.9 -94.4 1410.0 1315.6
White 5 2 0 3 2.0 40.0 -85.0 1319.8 1234.8
Black 4 1 1 2 1.5 37.5 -106.3 1522.8 1416.6
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1930159004 Cawthorn, W (William) 1 1.0 1 0 0 100.0 1201.0 425.0 1626.0 View list
2 1640119080 Goldberg, M (Mark) 1 1.0 1 0 0 100.0 1217.5 425.0 1642.5 View list
3 1840151780 Hayward, S (Stuart) 1 1.0 1 0 0 100.0 1217.5 425.0 1642.5 View list
4 1140138260 Ma, M (Matthew) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 108082807 Joseph, J (Jamie) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
6 2110143800 Naidoo, D (Dhiya) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
7 1860192157 Pieterson, W (Werner) 1 1.0 1 0 0 100.0 1201.0 425.0 1626.0 View list
8 1110145788 Rademeyer, F (Frederick Paul) 1 1.0 1 0 0 100.0 1201.0 425.0 1626.0 View list
9 1090119738 Shen Yu, F (Frank) 1 1.0 1 0 0 100.0 1187.3 425.0 1612.3 View list
10 1100143696 Songo, D (Divine) 1 1.0 1 0 0 100.0 1232.4 425.0 1657.4 View list
11 2830191584 Viana, C (Carla) 1 1.0 1 0 0 100.0 1187.3 425.0 1612.3 View list
12 2080140157 Jain, C (Chesta) 1 0.5 0 1 0 50.0 1211.7 0.0 1211.7 View list
13 1980097337 Ndlovu, B (Bongani) 1 0.5 0 1 0 50.0 1201.0 0.0 1201.0 View list
14 1970104047 Maponya, K (Khutso) 1 0.0 0 0 1 0.0 1211.7 -425.0 786.7 View list
15 1060117655 Mabaso, J (Jabulani) 1 0.0 0 0 1 0.0 1201.0 -425.0 776.0 View list
16 110091688 Kwak, J (Jaeson) 1 0.0 0 0 1 0.0 1232.4 -425.0 807.4 View list
17 1040301043 Haripersad, M (Micah) 1 0.0 0 0 1 0.0 1201.0 -425.0 776.0 View list
18 181011771 Hangelbroek, P (Peter) 1 0.0 0 0 1 0.0 1217.5 -425.0 792.5 View list
19 2120135696 Hu-Grobbelaar, L (Lalu) 1 0.0 0 0 1 0.0 1211.7 -425.0 786.7 View list
20 186012692 Hodgson, TF (Timothy) 1 0.0 0 0 1 0.0 1201.0 -425.0 776.0 View list