Player Page

Coetzee, J (Jaco)
Dob: 2005/08/13 (U20)
Gender: Male
Chess SA id: 105077104
FIDE id:
Region: Sedibeng (GSV)
Citizen: RSA
Title(s):
Last active: 2023/05/27 (390 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 rating1366.3
Current Weighted rating1362.8
Current Weighted performance1097.8
Current official/published rating (highest between Raw, WR and WP)1366.3
Current highest rating achieved1376.4
Current floor (min rating allowed)876.4
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)±130.8
Current Raw change used (final)0.0
Projected new Raw rating1366.3
Projected new Weighed rating1253.9
Projected new Weighted performance1097.8
Projected new final Raw rating (if new WP > new Raw)1366.3
Projected new highest rating1376.4
Projected new floor876.4
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1366.3
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 rating1363.7
Current Weighted rating1358.7
Current Weighted performance1097.8
Current official/published rating (highest between Raw, WR and WP)1363.7
Current highest rating achieved1372.0
Current floor (min rating allowed)872.0
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)±131.3
Current Raw change used (final)0.0
Projected new Raw rating1363.7
Projected new Weighed rating1250.3
Projected new Weighted performance1097.8
Projected new final Raw rating (if new WP > new Raw)1363.7
Projected new highest rating1372.0
Projected new floor872.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1363.7
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 rating706.8
Current Weighted rating706.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)706.8
Current highest rating achieved706.8
Current floor (min rating allowed)500.0
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)±334.8
Current Raw change used (final)0.0
Projected new Raw rating706.8
Projected new Weighed rating650.3
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating706.8
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)706.8
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 rating819.2
Current Weighted rating819.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)819.2
Current highest rating achieved819.2
Current floor (min rating allowed)500.0
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)±285.3
Current Raw change used (final)0.0
Projected new Raw rating819.2
Projected new Weighed rating753.7
Projected new Weighted performance128.7
Projected new final Raw rating (if new WP > new Raw)819.2
Projected new highest rating819.2
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)819.2
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
28 Gauteng Schools Individual Finals 2023 (U18 Boys) 2023/05/27 2023/05/27 Ekurhuleni (GE) Standard 60 0.83 5 5 2.5 1332.2 1319.4 Analysis
27 Gauteng Schools D7 2023 (U18 Boys) 2023/05/20 2023/05/20 Sedibeng (GSV) Standard 60 0.83 5 5 5.0 1332.2 1319.4 Analysis
26 Heidelberg Open 2023 (B) 2023/02/04 2023/02/04 Sedibeng (GSV) Standard 60 0.83 5 5 2.5 1361.2 1352.9 Analysis
25 Hoerskool Overvaal 2022 (A+B) 2022/06/11 2022/06/11 Sedibeng (GSV) Standard 60 0.83 5 4 1.0 1376.4 1372.0 Analysis
24 Heidelberg Open 2020 (B) 2020/02/01 2020/02/01 Sedibeng (GSV) Standard 60 0.83 5 5 3.0 1367.7 1361.2 Analysis
23 2019 South African Junior Team Championships (U16C) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 7 6.0 1327.7 1322.7 Analysis
22 GE vs GSV Inter Regional 2019 (U16B) 2019/10/26 2019/10/26 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1303.5 1297.8 Analysis
21 Sedibeng DF Malherbe Open 2019 (B) 2019/10/12 2019/10/12 Sedibeng (GSV) Standard 60 0.83 5 5 3.5 1303.5 1297.8 Analysis
20 Eureka Chess Open 2019 (C) 2019/07/27 2019/07/27 Sedibeng (GSV) Standard 61 0.83 5 4 2.5 1311.9 1307.2 Analysis
19 Overvaal Chess Open 2019 (B) 2019/06/15 2019/06/15 Sedibeng (GSV) Standard 61 0.83 5 5 4.0 1109.6 1100.8 Analysis
18 Vaal Chess Club Open 2019 (B) 2019/06/01 2019/06/01 Sedibeng (GSV) Standard 61 0.83 5 5 4.0 1109.6 1100.8 Analysis
17 Dirk de Koster Chess Open 2019 (B) 2019/04/13 2019/04/13 Sedibeng (GSV) Standard 61 0.83 5 5 3.0 1085.0 1067.2 Analysis
16 2019 Heidelberg Open (B) 2019/02/02 2019/02/02 Sedibeng (GSV) Standard 120 1.00 5 5 1.5 1130.6 1110.4 Analysis
15 South African Junior Blitz 2018 (U14) 2018/12/19 2018/12/19 4 Knights (4K) Blitz 5 0.18 7 7 3.5 1086.3 706.8 Analysis
14 South African Junior Team Championships 2018 (U14C) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 4.5 1086.3 1066.4 Analysis
13 2018 Interregion Sedibeng vs Ekurhuleni (I) 2018/11/03 2018/11/03 Sedibeng (GSV) Standard 60 0.83 5 5 1.0 1139.1 1129.2 Analysis
12 2018 Sedibeng Summer Open (F) 2018/10/20 2018/10/20 Sedibeng (GSV) Standard 60 0.83 5 5 4.0 1053.1 1056.4 Analysis
11 Eureka Chess Open 2018 (B) 2018/09/29 2018/09/29 Sedibeng (GSV) Standard 61 0.83 5 5 4.0 951.5 945.6 Analysis
10 Dr Pieter Hangelbroek Ope 2018 (C) 2018/09/01 2018/09/01 Sedibeng (GSV) Standard 61 0.83 5 5 3.5 951.5 945.6 Analysis
9 Broadland`s Knights Chess Open 2018 (B) 2018/06/16 2018/06/16 Sedibeng (GSV) Standard 61 0.83 5 5 2.0 972.4 975.6 Analysis
12
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 148 84 12 52 90.0 60.8 91.9 1054.1 1145.9
White 75 48 3 24 49.5 66.0 136.0 1051.9 1187.9
Black 73 36 9 28 40.5 55.5 46.6 1056.2 1102.8
Standard All 141 81 11 49 86.5 61.3 96.5 1044.9 1141.3
White 71 47 2 22 48.0 67.6 149.6 1038.3 1188.0
Black 70 34 9 27 38.5 55.0 42.5 1051.5 1094.0
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 7 3 1 3 3.5 50.0 0.0 1239.2 1239.2
White 4 1 1 2 1.5 37.5 -106.3 1293.1 1186.8
Black 3 2 0 1 2.0 66.7 141.7 1167.2 1308.9
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 105085039 Hanekom, D (Dylan) 3 2.0 2 0 1 66.7 796.8 141.7 938.4 View list
2 105052264 Van Der Net, JM (Jayden) 3 1.5 1 1 1 50.0 1048.7 0.0 1048.7 View list
3 102095339 Dube, B (Brandon) 2 2.0 2 0 0 100.0 962.0 425.0 1387.0 View list
4 106053294 Fritz, GPJ (Georg) 2 2.0 2 0 0 100.0 1005.7 425.0 1430.7 View list
5 105085038 Gibbens, JJW (James) 2 2.0 2 0 0 100.0 1221.3 425.0 1646.3 View list
6 105089277 Smeeton, J (John) 2 2.0 2 0 0 100.0 705.6 425.0 1130.6 View list
7 102052261 Rossouw, AW (Andreas) 2 1.5 1 1 0 75.0 1194.3 212.5 1406.8 View list
8 105087158 Lamont, M (Michael) 2 1.0 1 0 1 50.0 862.5 0.0 862.5 View list
9 105052263 Rossouw, R (Rohan) 2 1.0 1 0 1 50.0 1041.0 0.0 1041.0 View list
10 105087685 Van Der Mescht, MJ (Marnus) 2 1.0 1 0 1 50.0 1041.0 0.0 1041.0 View list
11 104087683 Botha, JL (Johannes) 2 1.0 0 2 0 50.0 719.4 0.0 719.4 View list
12 105076508 Coetzer, D (Daniel) 2 0.0 0 0 2 0.0 1061.8 -425.0 636.8 View list
13 106013013 Huisamen, BB (Botha) 2 0.0 0 0 2 0.0 803.5 -425.0 378.5 View list
14 105047605 Terblanche, F (Fred) 2 0.0 0 0 2 0.0 1017.3 -425.0 592.3 View list
15 105057512 Venter, J (Jude) 2 0.0 0 0 2 0.0 922.9 -425.0 497.9 View list
16 205087157 Coetzee, Z (Zahne) 1 1.0 1 0 0 100.0 1053.1 425.0 1478.1 View list
17 207064041 Coetzee, A (Anika) 1 1.0 1 0 0 100.0 1367.7 425.0 1792.7 View list
18 106080078 Chili, N (Nhlanhla) 1 1.0 1 0 0 100.0 993.0 425.0 1418.0 View list
19 207053292 De Villiers, D (Danielle) 1 1.0 1 0 0 100.0 1053.1 425.0 1478.1 View list
20 101093474 Du Toit, C (Conrad) 1 1.0 1 0 0 100.0 993.0 425.0 1418.0 View list