Player Page

Koorts, L (Lukas)
Dob: 2017/02/03 (U8)
Gender: Male
Chess SA id: 1170155747
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2024/12/08 (5 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 rating1580.8
Current Weighted rating1490.2
Current Weighted performance1479.8
Current official/published rating (highest between Raw, WR and WP)1580.8
Current highest rating achieved1612.6
Current floor (min rating allowed)1112.6
Current K-factor28
Games played this month5
Score (S)5.0
Expected score (We)3.63
Difference (S-We)1.29
Current Raw change (no limits, including tournament time weight)36.1
Current min/max change allowed (with limits)±96.4
Current Raw change used (final)36.1
Projected new Raw rating1616.9
Projected new Weighed rating1378.1
Projected new Weighted performance1607.2
Projected new final Raw rating (if new WP > new Raw)1616.9
Projected new highest rating1616.9
Projected new floor1116.9
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1616.9
Projected effective change (new Official - current Official)+36.1
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 rating1584.2
Current Weighted rating1504.2
Current Weighted performance1485.4
Current official/published rating (highest between Raw, WR and WP)1584.2
Current highest rating achieved1650.0
Current floor (min rating allowed)1150.0
Current K-factor28
Games played this month5
Score (S)5.0
Expected score (We)3.65
Difference (S-We)1.35
Current Raw change (no limits, including tournament time weight)37.8
Current min/max change allowed (with limits)±95.9
Current Raw change used (final)37.8
Projected new Raw rating1622.0
Projected new Weighed rating1391.2
Projected new Weighted performance1575.6
Projected new final Raw rating (if new WP > new Raw)1622.0
Projected new highest rating1650.0
Projected new floor1150.0
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1622.0
Projected effective change (new Official - current Official)+37.8
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 rating1418.1
Current Weighted rating1333.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1418.1
Current highest rating achieved1418.1
Current floor (min rating allowed)918.1
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)±121.5
Current Raw change used (final)0.0
Projected new Raw rating1418.1
Projected new Weighed rating1230.0
Projected new Weighted performance1373.5
Projected new final Raw rating (if new WP > new Raw)1418.1
Projected new highest rating1418.1
Projected new floor918.1
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1418.1
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 rating1128.0
Current Weighted rating1133.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1133.0
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)±183.7
Current Raw change used (final)0.0
Projected new Raw rating1128.0
Projected new Weighed rating1041.4
Projected new Weighted performance271.9
Projected new final Raw rating (if new WP > new Raw)1128.0
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)1128.0
Projected effective change (new Official - current Official)-5.0
Tournaments
Tournament: Gauteng Inter-Region at UJ 2024 (U8 Open)
Start: 2024/12/07  End: 2024/12/08  Host: GJM  Type: Standard   Time: 90  Time weight: 0.94  Rounds: 5
Games: 5  Score: 5.0
Main rating: 1580.8  Rating gain/loss: 36.1
Type rating: 1584.2  Rating gain/loss: 37.8
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
22 Gauteng Inter-Region at UJ 2024 (U8 Open) 2024/12/07 2024/12/08 Johannesburg Metro (GJM) Standard 90 0.94 5 5 5.0 1580.8 1584.2 Analysis
21 Queens Gambit Chess Open 2024 (E) 2024/11/23 2024/11/23 Sedibeng (GSV) Standard 60 0.83 5 4 3.0 1577.3 1581.4 Analysis
20 Mzansi Summer Rapid 2024 (U8+U10) 2024/10/26 2024/10/26 Johannesburg Metro (GJM) Rapid 25 0.54 6 6 6.0 1612.6 1358.7 Analysis
19 2024 Tshwane Chess Club Clash (Open) 2024/10/12 2024/10/12 Tshwane (GTP) Standard 60 0.83 5 4 1.0 1612.6 1650.0 Analysis
18 Gauteng Top Schools 2024 (U9 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1612.6 1650.0 Analysis
17 CPH King David Linksfield Aug Rapid 2024 (D) 2024/08/18 2024/08/18 Johannesburg Metro (GJM) Rapid 20 0.47 5 4 2.5 1600.3 1369.9 Analysis
16 2024 Jacaranda Round Robin Open Chess Tournament (U8) 2024/08/17 2024/08/17 Tshwane (GTP) Standard 60 0.83 5 5 5.0 1600.3 1611.0 Analysis
15 JMC Closed 2024 (U8) 2024/08/09 2024/08/09 Johannesburg Metro (GJM) Standard 60 0.83 5 4 4.0 1600.3 1611.0 Analysis
14 2024 Midstream College Open Chess Tournament (U10) 2024/07/20 2024/07/20 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1611.0 1629.5 Analysis
13 Menlopark Open Chess Tournament 2024 (U10) 2024/07/13 2024/07/13 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1611.0 1629.5 Analysis
12 FIDE in the West 2024 (U10) 2024/06/08 2024/06/08 West Rand (GWR) Standard 60 0.83 5 5 4.0 1603.6 1628.7 Analysis
11 JMC Trinityhouse Little Falls 2024 (U10) 2024/06/02 2024/06/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 1603.6 1628.7 Analysis
10 JMC Crawford International Sandton 2024 (U10) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1602.2 1636.5 Analysis
9 JMC Helpmekaar Kollege Tournament 2024 (U8) 2024/05/04 2024/05/04 Johannesburg Metro (GJM) Standard 60 0.83 5 5 5.0 1602.2 1636.5 Analysis
8 Bojanala Olienpark's One For The Ages 2024 (Big Pawns) 2024/04/20 2024/04/20 Bojanala Platina (NBR) Standard 60 0.83 5 5 5.0 1585.7 1628.4 Analysis
7 2024 West Rand RHS Open (U8) 2024/04/13 2024/04/13 West Rand (GWR) Standard 60 0.83 7 6 6.0 1585.7 1628.4 Analysis
6 CPH St Andrew's Rapid 2024 (D) 2024/03/30 2024/03/30 Ekurhuleni (GE) Rapid 20 0.47 5 5 5.0 1512.5 1291.4 Analysis
5 JNW Open - Classic - Crawford 2024 (U8) 2024/03/09 2024/03/09 Johannesburg Metro (GJM) Standard 60 0.83 5 5 5.0 1512.5 1507.2 Analysis
4 JMC Unika School Tournament 2024 2024/03/02 2024/03/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 5.0 1512.5 1507.2 Analysis
3 2024 Tshwane Chess AHS Open Chess Tournament (E) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 4.5 1447.0 1436.1 Analysis
12
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
31 Gauteng Inter-Region at UJ 2024 (U8 Open) 2024/12/07 2024/12/08 Johannesburg Metro (GJM) Standard 90 0.94 5 5 5.0 1580.8 1584.2 Analysis
30 Queens Gambit Chess Open 2024 (E) 2024/11/23 2024/11/23 Sedibeng (GSV) Standard 60 0.83 5 4 3.0 1577.3 1581.4 Analysis
29 Mzansi Summer Rapid 2024 (U8+U10) 2024/10/26 2024/10/26 Johannesburg Metro (GJM) Rapid 25 0.54 6 6 6.0 1612.6 1358.7 Analysis
28 2024 Tshwane Chess Club Clash (Open) 2024/10/12 2024/10/12 Tshwane (GTP) Standard 60 0.83 5 4 1.0 1612.6 1650.0 Analysis
27 Gauteng Top Schools 2024 (U9 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1612.6 1650.0 Analysis
26 CPH King David Linksfield Aug Rapid 2024 (D) 2024/08/18 2024/08/18 Johannesburg Metro (GJM) Rapid 20 0.47 5 4 2.5 1600.3 1369.9 Analysis
25 2024 Jacaranda Round Robin Open Chess Tournament (U8) 2024/08/17 2024/08/17 Tshwane (GTP) Standard 60 0.83 5 5 5.0 1600.3 1611.0 Analysis
24 JMC Closed 2024 (U8) 2024/08/09 2024/08/09 Johannesburg Metro (GJM) Standard 60 0.83 5 4 4.0 1600.3 1611.0 Analysis
23 2024 Midstream College Open Chess Tournament (U10) 2024/07/20 2024/07/20 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1611.0 1629.5 Analysis
22 Menlopark Open Chess Tournament 2024 (U10) 2024/07/13 2024/07/13 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1611.0 1629.5 Analysis
21 FIDE in the West 2024 (U10) 2024/06/08 2024/06/08 West Rand (GWR) Standard 60 0.83 5 5 4.0 1603.6 1628.7 Analysis
20 JMC Trinityhouse Little Falls 2024 (U10) 2024/06/02 2024/06/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 1603.6 1628.7 Analysis
19 JMC Crawford International Sandton 2024 (U10) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1602.2 1636.5 Analysis
18 JMC Helpmekaar Kollege Tournament 2024 (U8) 2024/05/04 2024/05/04 Johannesburg Metro (GJM) Standard 60 0.83 5 5 5.0 1602.2 1636.5 Analysis
17 Bojanala Olienpark's One For The Ages 2024 (Big Pawns) 2024/04/20 2024/04/20 Bojanala Platina (NBR) Standard 60 0.83 5 5 5.0 1585.7 1628.4 Analysis
16 2024 West Rand RHS Open (U8) 2024/04/13 2024/04/13 West Rand (GWR) Standard 60 0.83 7 6 6.0 1585.7 1628.4 Analysis
15 CPH St Andrew's Rapid 2024 (D) 2024/03/30 2024/03/30 Ekurhuleni (GE) Rapid 20 0.47 5 5 5.0 1512.5 1291.4 Analysis
14 JNW Open - Classic - Crawford 2024 (U8) 2024/03/09 2024/03/09 Johannesburg Metro (GJM) Standard 60 0.83 5 5 5.0 1512.5 1507.2 Analysis
13 JMC Unika School Tournament 2024 2024/03/02 2024/03/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 5.0 1512.5 1507.2 Analysis
12 2024 Tshwane Chess AHS Open Chess Tournament (E) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 4.5 1447.0 1436.1 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 107 93 3 11 94.5 88.3 325.7 1286.5 1612.2
White 55 48 0 7 48.0 87.3 316.8 1305.2 1622.0
Black 52 45 3 4 46.5 89.4 335.1 1266.7 1601.8
Standard All 92 80 2 10 81.0 88.0 323.4 1294.2 1617.6
White 48 42 0 6 42.0 87.5 318.8 1313.5 1632.2
Black 44 38 2 4 39.0 88.6 328.4 1273.2 1601.6
Rapid All 15 13 1 1 13.5 90.0 340.0 1239.1 1579.1
White 7 6 0 1 6.0 85.7 303.6 1248.4 1552.0
Black 8 7 1 0 7.5 93.8 371.9 1230.9 1602.8
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 153 117 7 29 120.5 78.8 244.4 1269.9 1514.4
White 79 60 2 17 61.0 77.2 231.3 1280.2 1511.5
Black 74 57 5 12 59.5 80.4 258.4 1258.9 1517.4
Standard All 127 98 6 23 101.0 79.5 251.0 1276.3 1527.3
White 67 52 2 13 53.0 79.1 247.4 1286.6 1534.0
Black 60 46 4 10 48.0 80.0 255.0 1264.8 1519.8
Rapid All 20 18 1 1 18.5 92.5 361.3 1229.8 1591.0
White 9 8 0 1 8.0 88.9 330.6 1237.7 1568.2
Black 11 10 1 0 10.5 95.5 386.4 1223.3 1609.7
Blitz All 6 1 0 5 1.0 16.7 -283.3 1268.5 985.2
White 3 0 0 3 0.0 0.0 -425.0 1265.3 840.3
Black 3 1 0 2 1.0 33.3 -141.7 1271.7 1130.1
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1170147325 Stelloh, A (Alexander) 8 7.5 7 1 0 93.8 1409.9 371.9 1781.8 View list
2 1170157327 Bekker, J (Jacobus) 5 5.0 5 0 0 100.0 1521.7 425.0 1946.7 View list
3 2170151830 Malemane, A (Atlehang Faith) 5 4.0 4 0 1 80.0 1463.0 255.0 1718.0 View list
4 1160151828 Du Pisani, M (Malcom) 5 4.0 3 2 0 80.0 1433.7 255.0 1688.7 View list
5 1170134515 Deysel, Z (Zachariah) 4 4.0 4 0 0 100.0 1485.0 425.0 1910.0 View list
6 1180147825 Conradie, D (David) 4 2.0 2 0 2 50.0 1306.5 0.0 1306.5 View list
7 1170157329 Roberts, M (Marthinus) 3 2.0 2 0 1 66.7 1234.2 141.7 1375.8 View list
8 1160152489 Taylor, M (Matthew) 3 0.5 0 1 2 16.7 1369.0 -283.3 1085.7 View list
9 1170152743 Conradie, M (Marcus) 2 2.0 2 0 0 100.0 1590.5 425.0 2015.5 View list
10 1160151829 Erdogan, D (Demir) 2 2.0 2 0 0 100.0 1397.9 425.0 1822.9 View list
11 1160190845 Orren, JJ (Jade Junior) 2 2.0 2 0 0 100.0 1608.1 425.0 2033.1 View list
12 1190162420 Scully, E (Ernest) 2 2.0 2 0 0 100.0 1607.4 425.0 2032.4 View list
13 1160148708 Venter, J (Jaco) 2 2.0 2 0 0 100.0 1421.7 425.0 1846.7 View list
14 1160158552 Lin, Y (Yizheng) 2 1.0 1 0 1 50.0 1408.0 0.0 1408.0 View list
15 1160159892 Viljoen, J (Jayden Johan) 2 1.0 1 0 1 50.0 1529.0 0.0 1529.0 View list
16 1160137420 Badat, M (Mikaeel) 2 0.0 0 0 2 0.0 1241.1 -425.0 816.1 View list
17 1160157331 Steyn, K (Kian) 2 0.0 0 0 2 0.0 1404.2 -425.0 979.2 View list
18 2170309236 Collen, V (Videl) 1 1.0 1 0 0 100.0 1600.3 425.0 2025.3 View list
19 1150306019 Conradie, L (Lianro Pierre) 1 1.0 1 0 0 100.0 1577.3 425.0 2002.3 View list
20 1180300701 Dikane, L (Leano) 1 1.0 1 0 0 100.0 1585.7 425.0 2010.7 View list