Player Page

Van Zyl, J (Jan)
Dob: 2004/05/20 (Adult)
Gender: Male
Chess SA id: 104076502
FIDE id:
Region: Ekurhuleni (GE)
Citizen: RSA
Title(s):
Last active: 2022/08/13 (659 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 rating1139.5
Curent Weighted rating1139.6
Curent Weighted performance569.8
Current official/published rating (highest between Raw, WR and WP)1139.6
Current floor (min rating allowed)671.0
Current highest rating achieved1171.0
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)±180.7
Current Raw change used (final)0.0
Projected new Raw rating1139.5
Projected new Weighed rating1139.5
Projected new Weighted performance569.8
Projected new official/published rating (highest between new Raw, new WR and new WP)1139.5
Projected effective change (new Official - current Official)-0.1
Projected new highest rating1171.0
Projected new floor671.0
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 rating1147.1
Curent Weighted rating1147.2
Curent Weighted performance580.1
Current official/published rating (highest between Raw, WR and WP)1147.2
Current floor (min rating allowed)685.9
Current highest rating achieved1185.9
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)±178.8
Current Raw change used (final)0.0
Projected new Raw rating1147.1
Projected new Weighed rating1147.1
Projected new Weighted performance580.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1147.1
Projected effective change (new Official - current Official)-0.1
Projected new highest rating1185.9
Projected new floor685.9
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 rating970.7
Curent Weighted rating970.7
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)970.7
Current floor (min rating allowed)500.0
Current highest rating achieved970.7
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)±229.9
Current Raw change used (final)0.0
Projected new Raw rating970.7
Projected new Weighed rating970.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)970.7
Projected effective change (new Official - current Official)-0.0
Projected new highest rating970.7
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 rating837.7
Curent Weighted rating836.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)837.7
Current floor (min rating allowed)500.0
Current highest rating achieved837.7
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)±277.8
Current Raw change used (final)0.0
Projected new Raw rating837.7
Projected new Weighed rating837.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)837.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating837.7
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
7 Ekurhuleni-North Schools Teams 2022 (U18) 2022/08/13 2022/08/13 Ekurhuleni (GE) Standard 60 0.83 5 4 0.0 1171.0 1185.9 Analysis
6 2019 South African Top Schools Team Championships (U15+U17 Open) 2020/01/10 2020/01/11 4 Knights (4K) Standard 90 0.94 5 4 1.0 1168.4 1185.5 Analysis
5 2019 Gauteng School League Finals (U15 Open) 2019/08/24 2019/08/24 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1120.3 1131.5 Analysis
4 2018 Gauteng League Final (U15) 2018/08/25 2018/08/25 Tshwane (GTP) Standard 60 0.83 5 5 2.5 924.3 942.3 Analysis
3 Ekurhuleni North Womens Day Tournament (Male) 2018/08/09 2018/08/09 Ekurhuleni (GE) Rapid 10 0.29 7 7 4.0 924.3 836.3 Analysis
2 Ekurhuleni North District Schools Final 2018 (U15) 2018/08/04 2018/08/04 Ekurhuleni (GE) Standard 60 0.83 5 5 5.0 924.3 942.3 Analysis
1 Ekurhuleni North Schools Individuals 2018 (U15 Boys) 2018/05/12 2018/05/12 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 836.3 836.3 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 35 19 1 15 19.5 55.7 48.6 1218.2 1266.8
White 19 10 1 8 10.5 55.3 44.7 1216.9 1261.6
Black 16 9 0 7 9.0 56.3 53.1 1219.9 1273.0
Standard All 28 15 1 12 15.5 55.4 45.5 1222.9 1268.5
White 16 8 1 7 8.5 53.1 26.6 1221.1 1247.7
Black 12 7 0 5 7.0 58.3 70.8 1225.3 1296.2
Rapid All 7 4 0 3 4.0 57.1 60.7 1199.5 1260.2
White 3 2 0 1 2.0 66.7 141.7 1194.1 1335.8
Black 4 2 0 2 2.0 50.0 0.0 1203.6 1203.6
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 104069713 Vorster, T (Tyrone) 2 0.0 0 0 2 0.0 880.3 -425.0 455.3 View list
2 1070101240 Boshoff, B (Benje) 1 1.0 1 0 0 100.0 924.3 425.0 1349.3 View list
3 203064963 Alex, M (Marilyn) 1 1.0 1 0 0 100.0 924.3 425.0 1349.3 View list
4 1040105077 Dimpe, T (Tshepo) 1 1.0 1 0 0 100.0 924.3 425.0 1349.3 View list
5 1000101374 Huang, J (Jyh-Shiuan) 1 1.0 1 0 0 100.0 836.3 425.0 1261.3 View list
6 1030105009 Jesus De Pinho, R (Rafael) 1 1.0 1 0 0 100.0 924.3 425.0 1349.3 View list
7 204071356 Mpanza, A (Amanda) 1 1.0 1 0 0 100.0 924.3 425.0 1349.3 View list
8 203086492 Mashala, ML (Maphula) 1 1.0 1 0 0 100.0 924.3 425.0 1349.3 View list
9 1090105084 Magwete, N (Ndinae) 1 1.0 1 0 0 100.0 924.3 425.0 1349.3 View list
10 1040102197 Ledwaba, J (Julius) 1 1.0 1 0 0 100.0 924.3 425.0 1349.3 View list
11 2040104997 Kgaswane, T (Thato) 1 1.0 1 0 0 100.0 924.3 425.0 1349.3 View list
12 1000101376 Mshengu, M (Mxolisi Siyanda) 1 1.0 1 0 0 100.0 836.3 425.0 1261.3 View list
13 1060117225 Odewale, D (Deviine) 1 1.0 1 0 0 100.0 1120.3 425.0 1545.3 View list
14 105081177 Pather, J (Juveshan) 1 1.0 1 0 0 100.0 1120.3 425.0 1545.3 View list
15 1040115286 Schonken, S (Stefan) 1 1.0 1 0 0 100.0 1120.3 425.0 1545.3 View list
16 204066118 Swanepoel, J (Juanne) 1 1.0 1 0 0 100.0 924.3 425.0 1349.3 View list
17 105086548 Thebe, RC (Reabetswe) 1 1.0 1 0 0 100.0 1168.4 425.0 1593.4 View list
18 1000101384 Van Niekerk, R (Ryan) 1 1.0 1 0 0 100.0 836.3 425.0 1261.3 View list
19 109089375 Viljoen, H (Henning) 1 1.0 1 0 0 100.0 924.3 425.0 1349.3 View list
20 205082888 Wagener, L (Lamari) 1 1.0 1 0 0 100.0 1120.3 425.0 1545.3 View list