Player Page

Coetsee, D (Dewald)
Dob: 2008/05/21 (U18)
Gender: Male
Chess SA id: 108064021
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/06/01 (23 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 rating1812.8
Current Weighted rating1730.7
Current Weighted performance1798.3
Current official/published rating (highest between Raw, WR and WP)1812.8
Current highest rating achieved1812.8
Current floor (min rating allowed)1312.8
Current K-factor24
Games played this month5
Score (S)3.5
Expected score (We)1.63
Difference (S-We)1.55
Current Raw change (no limits, including tournament time weight)37.3
Current min/max change allowed (with limits)±69.3
Current Raw change used (final)37.3
Projected new Raw rating1850.1
Projected new Weighed rating1595.1
Projected new Weighted performance1909.0
Projected new final Raw rating (if new WP > new Raw)1909.0
Projected new highest rating1909.0
Projected new floor1409.0
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1909.0
Projected effective change (new Official - current Official)+96.2
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 rating1826.5
Current Weighted rating1738.1
Current Weighted performance1798.3
Current official/published rating (highest between Raw, WR and WP)1826.5
Current highest rating achieved1826.5
Current floor (min rating allowed)1326.5
Current K-factor24
Games played this month5
Score (S)3.5
Expected score (We)1.69
Difference (S-We)1.81
Current Raw change (no limits, including tournament time weight)43.4
Current min/max change allowed (with limits)±67.9
Current Raw change used (final)43.4
Projected new Raw rating1869.9
Projected new Weighed rating1602.2
Projected new Weighted performance1909.0
Projected new final Raw rating (if new WP > new Raw)1909.0
Projected new highest rating1909.0
Projected new floor1409.0
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1909.0
Projected effective change (new Official - current Official)+82.5
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 rating1594.9
Current Weighted rating1414.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1594.9
Current highest rating achieved1594.9
Current floor (min rating allowed)1094.9
Current K-factor32
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)±94.5
Current Raw change used (final)0.0
Projected new Raw rating1594.9
Projected new Weighed rating1307.8
Projected new Weighted performance945.9
Projected new final Raw rating (if new WP > new Raw)1594.9
Projected new highest rating1594.9
Projected new floor1094.9
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1594.9
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 rating1227.6
Current Weighted rating1218.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1227.6
Current highest rating achieved1227.6
Current floor (min rating allowed)727.6
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)±159.4
Current Raw change used (final)0.0
Projected new Raw rating1227.6
Projected new Weighed rating1120.9
Projected new Weighted performance788.3
Projected new final Raw rating (if new WP > new Raw)1227.6
Projected new highest rating1227.6
Projected new floor727.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1227.6
Projected effective change (new Official - current Official)=0.0
Tournaments
Tournament: 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (Prestige)
Start: 2024/06/01  End: 2024/06/01  Host: GTP  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 3.5
Main rating: 1812.8  Rating gain/loss: 37.3
Type rating: 1826.5  Rating gain/loss: 43.4
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
7 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (Prestige) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1812.8 1826.5 Analysis
6 JMC Crawford International Sandton 2024 (A) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1780.9 1807.5 Analysis
5 South African Junior Closed Chess Championship 2024 (U16 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 5.0 1780.9 1807.5 Analysis
4 2024 Lubowski Open Chess Tournament (A) 2024/03/23 2024/03/24 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1779.6 1812.3 Analysis
3 2024 Chris Greyling Open Chess Tournament (Prestige) 2024/03/16 2024/03/16 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1779.6 1812.3 Analysis
2 2024 Tshwane Chess OPEN Registration Tournament (Prestige) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1715.3 1708.8 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U16A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1715.3 1708.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
75 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (Prestige) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1812.8 1826.5 Analysis
74 JMC Crawford International Sandton 2024 (A) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1780.9 1807.5 Analysis
73 South African Junior Closed Chess Championship 2024 (U16 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 5.0 1780.9 1807.5 Analysis
72 2024 Lubowski Open Chess Tournament (A) 2024/03/23 2024/03/24 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1779.6 1812.3 Analysis
71 2024 Chris Greyling Open Chess Tournament (Prestige) 2024/03/16 2024/03/16 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1779.6 1812.3 Analysis
70 2024 Tshwane Chess OPEN Registration Tournament (Prestige) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1715.3 1708.8 Analysis
69 2024 Gauteng Inter-Region Chess Championship (U16A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1715.3 1708.8 Analysis
68 2023 Centurion Chess Open (A) 2023/09/23 2023/09/23 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1754.3 1751.4 Analysis
67 2023 Etienne Lewis Closed Tournament (U16) 2023/08/25 2023/08/27 Tshwane (GTP) Standard 90 0.94 7 7 7.0 1690.3 1692.9 Analysis
66 FIDE World Youth U16 Chess Olympiad 2023 2023/08/13 2023/08/18 Netherlands (NED) Rapid 55 0.80 9 8 4.5 1690.3 1215.8 Analysis
65 DR Kenneth Kaunda Volkies 29 Jul 2023 (A) 2023/07/29 2023/07/29 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 4.5 1674.3 1673.3 Analysis
64 2023 Lubowski Open Tournament (A) 2023/06/24 2023/06/25 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1701.4 1699.3 Analysis
63 2023 Elize Steenkamp Open Tournament (A) 2023/06/16 2023/06/17 Tshwane (GTP) Standard 90 0.94 6 6 3.0 1701.4 1699.3 Analysis
62 2023 Milos Ristic Open Tournament (A) 2023/04/27 2023/04/27 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1720.5 1720.0 Analysis
61 2023 South African Junior Closed Chess Championships (U16 Open) 2023/03/31 2023/04/04 Chess South Africa (CSA) Standard 120 1.00 9 9 5.0 1720.5 1720.0 Analysis
60 2023 Afrikaans Hoër Seunskool Open Chess Tournament (A) 2023/03/04 2023/03/04 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1741.9 1741.6 Analysis
59 2023 Piet Robbertse Fide Rated Open Chess Tournament (A) 2023/02/04 2023/02/05 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1648.1 1650.2 Analysis
58 2023 Tshwane Chess Open Registration Tournament (A) 2023/01/28 2023/01/28 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1595.4 1592.5 Analysis
57 2022 South African Junior Team Chess Championships (U16 Open) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 7 4.0 1602.4 1600.1 Analysis
56 2022 Etienne Lewis (U16 Open) 2022/09/02 2022/09/04 Tshwane (GTP) Standard 90 0.94 7 7 5.5 1565.1 1561.1 Analysis
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Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 39 20 5 14 22.5 57.7 65.4 1824.6 1890.0
White 18 12 1 5 12.5 69.4 165.3 1780.3 1945.6
Black 21 8 4 9 10.0 47.6 -20.2 1862.5 1842.3
Standard All 39 20 5 14 22.5 57.7 65.4 1824.6 1890.0
White 18 12 1 5 12.5 69.4 165.3 1780.3 1945.6
Black 21 8 4 9 10.0 47.6 -20.2 1862.5 1842.3
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 438 225 52 161 251.0 57.3 62.1 1421.6 1483.7
White 216 122 25 69 134.5 62.3 104.3 1394.6 1498.9
Black 222 103 27 92 116.5 52.5 21.1 1447.9 1468.9
Standard All 375 192 50 133 217.0 57.9 66.9 1429.8 1496.7
White 185 104 25 56 116.5 63.0 110.3 1397.2 1507.5
Black 190 88 25 77 100.5 52.9 24.6 1461.5 1486.1
Rapid All 27 16 1 10 16.5 61.1 94.4 1419.0 1513.4
White 14 8 0 6 8.0 57.1 60.7 1479.8 1540.5
Black 13 8 1 4 8.5 65.4 130.8 1353.5 1484.3
Blitz All 36 17 1 18 17.5 48.6 -11.8 1338.2 1326.4
White 17 10 0 7 10.0 58.8 75.0 1295.8 1370.8
Black 19 7 1 11 7.5 39.5 -89.5 1376.1 1286.6
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 108045082 Koning, L (Lehan) 7 4.5 3 3 1 64.3 1443.4 121.4 1564.8 View list
2 108076196 Potgieter, E (Edward) 7 3.5 3 1 3 50.0 1457.6 0.0 1457.6 View list
3 109086379 Jacobs, CN (Calvin Nicholas) 7 1.5 1 1 5 21.4 1539.7 -242.9 1296.8 View list
4 108082684 De Vries, MA (Andrio) 6 5.0 5 0 1 83.3 1513.8 283.3 1797.1 View list
5 108052034 Du Toit, SJM (Stephanus (Matteo)) 5 4.0 4 0 1 80.0 1383.3 255.0 1638.3 View list
6 110086011 Felix, R (Raphael) 5 3.5 3 1 1 70.0 1592.6 170.0 1762.6 View list
7 107086377 Jacobs, TB (Tiaan Benjamin) 5 2.5 2 1 2 50.0 1412.7 0.0 1412.7 View list
8 107046393 Fourie, K (Keanan) 5 2.0 2 0 3 40.0 1347.3 -85.0 1262.3 View list
9 109069454 Sathish, A (Abinavah) 5 2.0 1 2 2 40.0 1504.3 -85.0 1419.3 View list
10 184019054 Mabusela, JM (Johannes) 5 0.0 0 0 5 0.0 1717.3 -425.0 1292.3 View list
11 108079781 Soojay, J (Jorah) 5 0.0 0 0 5 0.0 1518.4 -425.0 1093.4 View list
12 106060952 Viljoen, J (Jaden) 4 3.0 3 0 1 75.0 1302.3 212.5 1514.8 View list
13 108064849 Ziegenhagen, V (Vian Luke) 4 2.0 2 0 2 50.0 1440.2 0.0 1440.2 View list
14 109083783 Kushar, T (Tristan) 3 3.0 3 0 0 100.0 1444.4 425.0 1869.4 View list
15 108086541 Louw, R (Raynor) 3 3.0 3 0 0 100.0 1607.0 425.0 2032.0 View list
16 108057851 Malan, H (Henco) 3 2.5 2 1 0 83.3 1242.2 283.3 1525.5 View list
17 1070104078 Price, DR (Daelen) 3 2.5 2 1 0 83.3 1650.6 283.3 1933.9 View list
18 105090318 Shuping, O (Omphile) 3 2.5 2 1 0 83.3 1548.6 283.3 1831.9 View list
19 107050552 Van Der Westhuizen, F (Frederik) 3 2.0 1 2 0 66.7 1182.5 141.7 1324.2 View list
20 107069948 Jones, W (William) 3 1.5 1 1 1 50.0 1487.2 0.0 1487.2 View list