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: 2024/09/01 (18 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 rating1818.2
Current Weighted rating1762.4
Current Weighted performance1627.3
Current official/published rating (highest between Raw, WR and WP)1818.2
Current highest rating achieved1881.0
Current floor (min rating allowed)1381.0
Current K-factor24
Games played this month7
Score (S)5.5
Expected score (We)6.20
Difference (S-We)-0.66
Current Raw change (no limits, including tournament time weight)-15.8
Current min/max change allowed (with limits)±68.7
Current Raw change used (final)-15.8
Projected new Raw rating1802.4
Projected new Weighed rating1624.2
Projected new Weighted performance1651.5
Projected new final Raw rating (if new WP > new Raw)1802.4
Projected new highest rating1881.0
Projected new floor1381.0
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1802.4
Projected effective change (new Official - current Official)-15.8
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 rating1820.2
Current Weighted rating1769.4
Current Weighted performance1665.1
Current official/published rating (highest between Raw, WR and WP)1820.2
Current highest rating achieved1882.9
Current floor (min rating allowed)1382.9
Current K-factor24
Games played this month7
Score (S)5.5
Expected score (We)6.22
Difference (S-We)-0.72
Current Raw change (no limits, including tournament time weight)-17.3
Current min/max change allowed (with limits)±68.5
Current Raw change used (final)-17.3
Projected new Raw rating1802.9
Projected new Weighed rating1630.9
Projected new Weighted performance1659.6
Projected new final Raw rating (if new WP > new Raw)1802.9
Projected new highest rating1882.9
Projected new floor1382.9
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1802.9
Projected effective change (new Official - current Official)-17.3
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 rating1472.6
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 rating1361.7
Projected new Weighted performance903.0
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 rating1319.8
Current Weighted rating1235.4
Current Weighted performance1166.5
Current official/published rating (highest between Raw, WR and WP)1319.8
Current highest rating achieved1319.8
Current floor (min rating allowed)819.8
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)±139.8
Current Raw change used (final)0.0
Projected new Raw rating1319.8
Projected new Weighed rating1137.4
Projected new Weighted performance1166.5
Projected new final Raw rating (if new WP > new Raw)1319.8
Projected new highest rating1319.8
Projected new floor819.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1319.8
Projected effective change (new Official - current Official)=0.0
Tournaments
Tournament: 2024 Etienne Lewis (U18+U20)
Start: 2024/08/30  End: 2024/09/01  Host: GTP  Type: Standard   Time: 90  Time weight: 0.94  Rounds: 7
Games: 7  Score: 5.5
Main rating: 1818.2  Rating gain/loss: -15.8
Type rating: 1820.2  Rating gain/loss: -17.3
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
13 2024 Etienne Lewis (U18+U20) 2024/08/30 2024/09/01 Tshwane (GTP) Standard 90 0.94 7 7 5.5 1818.2 1820.2 Analysis
12 Eureka Open 27 July 2024 (A) 2024/07/27 2024/07/27 Sedibeng (GSV) Standard 60 0.83 5 3 0.5 1881.0 1882.9 Analysis
11 DR KK Gimmies 2024 (A) 2024/07/13 2024/07/13 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 4.0 1881.0 1882.9 Analysis
10 South African Open Chess Championship 2024 (Blitz) 2024/07/04 2024/07/04 Ethekwini (KED) Blitz 5 0.18 11 11 7.0 1881.0 1227.6 Analysis
9 South African Open Chess Championship 2024 (A) 2024/06/29 2024/07/07 Ethekwini (KED) Standard 120 1.00 11 11 5.5 1881.0 1882.9 Analysis
8 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 5.0 1812.8 1826.5 Analysis
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
81 2024 Etienne Lewis (U18+U20) 2024/08/30 2024/09/01 Tshwane (GTP) Standard 90 0.94 7 7 5.5 1818.2 1820.2 Analysis
80 Eureka Open 27 July 2024 (A) 2024/07/27 2024/07/27 Sedibeng (GSV) Standard 60 0.83 5 3 0.5 1881.0 1882.9 Analysis
79 DR KK Gimmies 2024 (A) 2024/07/13 2024/07/13 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 4.0 1881.0 1882.9 Analysis
78 South African Open Chess Championship 2024 (Blitz) 2024/07/04 2024/07/04 Ethekwini (KED) Blitz 5 0.18 11 11 7.0 1881.0 1227.6 Analysis
77 South African Open Chess Championship 2024 (A) 2024/06/29 2024/07/07 Ethekwini (KED) Standard 120 1.00 11 11 5.5 1881.0 1882.9 Analysis
76 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 5.0 1812.8 1826.5 Analysis
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
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Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 85 45 10 30 50.0 58.8 75.0 1730.6 1805.6
White 43 26 3 14 27.5 64.0 118.6 1703.9 1822.5
Black 42 19 7 16 22.5 53.6 30.4 1757.9 1788.2
Standard All 74 38 10 26 43.0 58.1 68.9 1732.6 1801.6
White 37 22 3 12 23.5 63.5 114.9 1709.0 1823.8
Black 37 16 7 14 19.5 52.7 23.0 1756.3 1779.3
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 11 7 0 4 7.0 63.6 115.9 1716.6 1832.5
White 6 4 0 2 4.0 66.7 141.7 1672.7 1814.4
Black 5 3 0 2 3.0 60.0 85.0 1769.2 1854.2
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 484 250 57 177 278.5 57.5 64.1 1443.4 1507.5
White 241 136 27 78 149.5 62.0 102.3 1421.0 1523.3
Black 243 114 30 99 129.0 53.1 26.2 1465.6 1491.8
Standard All 410 210 55 145 237.5 57.9 67.4 1446.9 1514.3
White 204 114 27 63 127.5 62.5 106.3 1420.0 1526.2
Black 206 96 28 82 110.0 53.4 28.9 1473.6 1502.4
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 47 24 1 22 24.5 52.1 18.1 1426.7 1444.8
White 23 14 0 9 14.0 60.9 92.4 1394.1 1486.5
Black 24 10 1 13 10.5 43.8 -53.1 1458.0 1404.9
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 107050552 Van Der Westhuizen, F (Frederik) 4 3.0 2 2 0 75.0 1357.2 212.5 1569.7 View list
14 108064849 Ziegenhagen, V (Vian Luke) 4 2.0 2 0 2 50.0 1440.2 0.0 1440.2 View list
15 109083783 Kushar, T (Tristan) 3 3.0 3 0 0 100.0 1444.4 425.0 1869.4 View list
16 108086541 Louw, R (Raynor) 3 3.0 3 0 0 100.0 1607.0 425.0 2032.0 View list
17 108057851 Malan, H (Henco) 3 2.5 2 1 0 83.3 1242.2 283.3 1525.5 View list
18 1070104078 Price, DR (Daelen) 3 2.5 2 1 0 83.3 1650.6 283.3 1933.9 View list
19 105090318 Shuping, O (Omphile) 3 2.5 2 1 0 83.3 1548.6 283.3 1831.9 View list
20 204047328 Fourie, EM (Elzette) 3 2.0 2 0 1 66.7 1533.9 141.7 1675.6 View list