Player Page

Van Tonder, JA (Jason Alexander)
Dob: 2007/09/18 (U18)
Gender: Male
Chess SA id: 1070112678
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2022/08/26 (670 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 rating1145.3
Current Weighted rating1145.1
Current Weighted performance827.5
Current official/published rating (highest between Raw, WR and WP)1145.3
Current highest rating achieved1145.3
Current floor (min rating allowed)645.3
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)±179.3
Current Raw change used (final)0.0
Projected new Raw rating1145.3
Projected new Weighed rating1053.7
Projected new Weighted performance827.5
Projected new final Raw rating (if new WP > new Raw)1145.3
Projected new highest rating1145.3
Projected new floor645.3
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1145.3
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 rating1159.6
Current Weighted rating1159.4
Current Weighted performance827.5
Current official/published rating (highest between Raw, WR and WP)1159.6
Current highest rating achieved1159.6
Current floor (min rating allowed)659.6
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)±175.6
Current Raw change used (final)0.0
Projected new Raw rating1159.6
Projected new Weighed rating1066.8
Projected new Weighted performance827.5
Projected new final Raw rating (if new WP > new Raw)1159.6
Projected new highest rating1159.6
Projected new floor659.6
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1159.6
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 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
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.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
7 2022 Gauteng Schools Team Championships (U15 Open) 2022/08/26 2022/08/26 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1093.8 1098.8 Analysis
6 2022 D3 Cluster Teams (U17) 2022/05/28 2022/05/28 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1018.8 995.2 Analysis
5 2022 D3 Cluster Teams (U15 Mixed) 2022/05/28 2022/05/28 Tshwane (GTP) Standard 60 0.83 5 4 1.0 1018.8 995.2 Analysis
4 2019 Gauteng School League Finals (U13 Open) 2019/08/23 2019/08/23 Tshwane (GTP) Standard 60 0.83 5 4 0.0 1058.6 1041.6 Analysis
3 2019 D3 Team League (U13) 2019/07/20 2019/07/20 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1069.9 1051.6 Analysis
2 D3 Primary School League Cluster 4 2019 (U13) 2019/05/12 2019/05/12 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1099.1 1080.4 Analysis
1 2019 D3 Individuals (U13 Boys) 2019/04/13 2019/04/13 Tshwane (GTP) Standard 60 0.83 5 5 1.0 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 33 13 1 19 13.5 40.9 -77.3 1100.7 1023.4
White 19 8 1 10 8.5 44.7 -44.7 1034.6 989.8
Black 14 5 0 9 5.0 35.7 -121.4 1190.5 1069.0
Standard All 33 13 1 19 13.5 40.9 -77.3 1100.7 1023.4
White 19 8 1 10 8.5 44.7 -44.7 1034.6 989.8
Black 14 5 0 9 5.0 35.7 -121.4 1190.5 1069.0
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 107071968 Van Der Merwe, N (Nicolaas) 2 1.0 1 0 1 50.0 1084.5 0.0 1084.5 View list
2 1060141605 Badenhorst, C (Christo) 1 1.0 1 0 0 100.0 1018.8 425.0 1443.8 View list
3 2080141585 Blessing, M (Malatsho) 1 1.0 1 0 0 100.0 1018.8 425.0 1443.8 View list
4 2080141933 Cloete, E (Elizna) 1 1.0 1 0 0 100.0 1093.8 425.0 1518.8 View list
5 1060141613 Malinga, T (Tshepang) 1 1.0 1 0 0 100.0 1018.8 425.0 1443.8 View list
6 1080116785 Mkhonza, A (Amukelani) 1 1.0 1 0 0 100.0 1069.9 425.0 1494.9 View list
7 1080145979 Hlophe, M (Mlungisi Elliot) 1 1.0 1 0 0 100.0 1093.8 425.0 1518.8 View list
8 1080145978 Hlogwane, M (Mpho) 1 1.0 1 0 0 100.0 1093.8 425.0 1518.8 View list
9 1070112670 Mongale, GGK (Gomolemo Gratetude Khaya) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 1060141616 Mokwena, K (Kabelo) 1 1.0 1 0 0 100.0 1018.8 425.0 1443.8 View list
11 107092284 Pila, L (Lesiba) 1 1.0 1 0 0 100.0 1069.9 425.0 1494.9 View list
12 1060141627 Simelane, K (Kholwani Skhumbuzo) 1 1.0 1 0 0 100.0 1018.8 425.0 1443.8 View list
13 2070115520 Smit, A (Anelri) 1 1.0 1 0 0 100.0 1099.1 425.0 1524.1 View list
14 1070137238 Mokoena, T (Thato) 1 0.5 0 1 0 50.0 1093.8 0.0 1093.8 View list
15 106044725 Mostert, AG (Adriaan) 1 0.0 0 0 1 0.0 1058.6 -425.0 633.6 View list
16 107079467 Fuller, J (James) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
17 2080141599 Mcintyre, G (Geraldine) 1 0.0 0 0 1 0.0 1018.8 -425.0 593.8 View list
18 1060101854 Mashego, T (Tshepo) 1 0.0 0 0 1 0.0 1058.6 -425.0 633.6 View list
19 106068473 Maritz, E (Evan) 1 0.0 0 0 1 0.0 1099.1 -425.0 674.1 View list
20 1070101108 Le Roux, M (Markus) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list