Player Page

Jacobs, D (Duan)
Dob: 2005/05/03 (U20)
Gender: Male
Chess SA id: 105013333
FIDE id:
Region: Lejweleputswa (FLW)
Citizen: RSA
Title(s):
Last active: 2020/01/08 (1591 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 rating1221.1
Curent Weighted rating1221.1
Curent Weighted performance502.3
Current official/published rating (highest between Raw, WR and WP)1221.1
Current floor (min rating allowed)721.1
Current highest rating achieved1221.1
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)±160.9
Current Raw change used (final)0.0
Projected new Raw rating1221.1
Projected new Weighed rating1221.1
Projected new Weighted performance502.3
Projected new official/published rating (highest between new Raw, new WR and new WP)1221.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1221.1
Projected new floor721.1
Projected new K-facor36
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 rating1222.7
Curent Weighted rating1222.7
Curent Weighted performance501.9
Current official/published rating (highest between Raw, WR and WP)1222.7
Current floor (min rating allowed)722.7
Current highest rating achieved1222.7
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)±160.5
Current Raw change used (final)0.0
Projected new Raw rating1222.7
Projected new Weighed rating1222.7
Projected new Weighted performance501.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1222.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1222.7
Projected new floor722.7
Projected new K-facor36
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 rating1104.3
Curent Weighted rating1104.3
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1104.3
Current floor (min rating allowed)604.3
Current highest rating achieved1104.3
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)±190.0
Current Raw change used (final)0.0
Projected new Raw rating1104.3
Projected new Weighed rating1104.3
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1104.3
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1104.3
Projected new floor604.3
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 rating1104.3
Curent Weighted rating1104.3
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1104.3
Current floor (min rating allowed)604.3
Current highest rating achieved1104.3
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)±190.0
Current Raw change used (final)0.0
Projected new Raw rating1104.3
Projected new Weighed rating1104.3
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1104.3
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1104.3
Projected new floor604.3
Projected new K-facor40
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
14 2019 South African Junior Team Championships (U16B) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 7 5.0 1114.7 1119.1 Analysis
13 Lejweleputswa 7th Qualifying Swiss Open Tournament 2019 (Open) 2019/06/15 2019/06/15 Lejweleputswa (FLW) Standard 62 0.84 5 5 2.5 1098.1 1101.1 Analysis
12 Lejweleputswa 6th Qualifying Swiss Open Tournament 2019 (A) 2019/05/25 2019/05/25 Lejweleputswa (FLW) Standard 62 0.84 5 5 2.5 1096.4 1100.7 Analysis
11 Lejweleputswa 4th Qualifying Swiss Open Tournament 2019 (B) 2019/03/16 2019/03/16 Lejweleputswa (FLW) Standard 62 0.84 5 5 3.0 1069.5 1067.9 Analysis
10 Lejweleputswa 2nd Qualifying Swiss Open Tournament 2019 (B) 2019/01/26 2019/01/26 Lejweleputswa (FLW) Standard 62 0.84 5 5 2.5 1070.2 1068.3 Analysis
9 South African Junior Team Championships 2018 (U14D) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 4.0 1036.6 1039.1 Analysis
8 South African Open 2018 (C) 2018/07/11 2018/07/13 Mangaung (FMB) Standard 60 0.83 6 6 4.0 995.4 986.3 Analysis
7 Lejweleputswa 6th Qualifying Swiss Open Tournament 2018 (C) 2018/05/26 2018/05/26 Lejweleputswa (FLW) Standard 62 0.84 5 5 2.5 1077.9 1083.9 Analysis
6 Inter Regional 2018 (U14 Team) 2018/05/04 2018/05/05 Frances Baard (NCF) Standard 60 0.83 5 5 1.0 1077.9 1083.9 Analysis
5 Lejweleputswa 5th Qualifying Swiss Open Tournament 2018 (U14) 2018/04/21 2018/04/21 Lejweleputswa (FLW) Standard 62 0.84 5 5 4.0 1094.7 1102.3 Analysis
4 Lejweleputswa 3rd Qualifying Swiss Open Tournament 2018 (U14) 2018/02/24 2018/02/24 Lejweleputswa (FLW) Standard 62 0.84 5 5 5.0 1082.3 1087.5 Analysis
3 Lejweleputswa 2nd Qualifying Swiss Open Tournament 2018 (A) 2018/01/27 2018/01/27 Lejweleputswa (FLW) Standard 62 0.84 5 5 2.5 1104.3 1104.3 Analysis
2 South African Junior Wildcard Championships 2017 (U14 Open) 2018/01/09 2018/01/12 4 Knights (4K) Standard 120 1.00 7 7 4.0 1104.3 1104.3 Analysis
1 South African Junior Team Championships 2017 (U14D) 2018/01/04 2018/01/08 4 Knights (4K) Standard 120 1.00 7 7 4.5 1104.3 1104.3 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 79 41 12 26 47.0 59.5 80.7 1026.2 1106.9
White 40 24 4 12 26.0 65.0 127.5 1026.4 1153.9
Black 39 17 8 14 21.0 53.8 32.7 1025.9 1058.5
Standard All 79 41 12 26 47.0 59.5 80.7 1026.2 1106.9
White 40 24 4 12 26.0 65.0 127.5 1026.4 1153.9
Black 39 17 8 14 21.0 53.8 32.7 1025.9 1058.5
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 104005961 Daniel, CV (Christiaan) 3 1.5 1 1 1 50.0 1088.0 0.0 1088.0 View list
2 104083563 Mokhoera, KB (Keamogecoe) 3 1.5 1 1 1 50.0 1079.3 0.0 1079.3 View list
3 105065552 Pillay, D (Diveshan) 3 1.5 1 1 1 50.0 1082.4 0.0 1082.4 View list
4 104036958 Swart, D (Dian) 2 2.0 2 0 0 100.0 1088.0 425.0 1513.0 View list
5 102076492 Du Toit, JP (Johannes) 2 1.5 1 1 0 75.0 1069.8 212.5 1282.3 View list
6 101025389 Motlalane, T (Tumelo) 2 1.5 1 1 0 75.0 1100.3 212.5 1312.8 View list
7 105083560 Masuku, M (Mxolosi) 2 1.0 1 0 1 50.0 1075.9 0.0 1075.9 View list
8 1050097186 Chibisa, T (Takudzwa) 1 1.0 1 0 0 100.0 1114.7 425.0 1539.7 View list
9 104087683 Botha, JL (Johannes) 1 1.0 1 0 0 100.0 1104.3 425.0 1529.3 View list
10 106089853 Bezuidenhout, C (Cornelius) 1 1.0 1 0 0 100.0 1094.7 425.0 1519.7 View list
11 205055185 Du Preez, K (Katrien) 1 1.0 1 0 0 100.0 1114.7 425.0 1539.7 View list
12 105060444 Edwards, B (Brandon) 1 1.0 1 0 0 100.0 1036.6 425.0 1461.6 View list
13 206050681 Ahjum, J (Jordan) 1 1.0 1 0 0 100.0 1077.9 425.0 1502.9 View list
14 204079859 Fauconier, C (Caley) 1 1.0 1 0 0 100.0 1114.7 425.0 1539.7 View list
15 105065548 Hendricks, UO (Uziel) 1 1.0 1 0 0 100.0 1082.3 425.0 1507.3 View list
16 206066056 Haji-Varnavas, G (Guiliana) 1 1.0 1 0 0 100.0 1082.3 425.0 1507.3 View list
17 108086183 Janse Van Vuuren, J (Janus) 1 1.0 1 0 0 100.0 995.4 425.0 1420.4 View list
18 103049168 Jongbloed, C (Chad) 1 1.0 1 0 0 100.0 995.4 425.0 1420.4 View list
19 103085523 Lefeta, T (Thato) 1 1.0 1 0 0 100.0 995.4 425.0 1420.4 View list
20 104085089 Li, J (Joseph) 1 1.0 1 0 0 100.0 1104.3 425.0 1529.3 View list