Player Page

Grobler, R (Rowan)
Dob: 2011/08/16 (U14)
Gender: Male
Chess SA id: 1110140037
FIDE id:
Region: Bojanala Platina (NBR)
Citizen: RSA
Title(s):
Last active: 2024/09/21 (65 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 rating1440.8
Current Weighted rating1409.4
Current Weighted performance1298.1
Current official/published rating (highest between Raw, WR and WP)1440.8
Current highest rating achieved1555.1
Current floor (min rating allowed)1055.1
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)±117.7
Current Raw change used (final)0.0
Projected new Raw rating1440.8
Projected new Weighed rating1297.4
Projected new Weighted performance1298.1
Projected new final Raw rating (if new WP > new Raw)1440.8
Projected new highest rating1555.1
Projected new floor1055.1
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1440.8
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 rating1413.0
Current Weighted rating1406.4
Current Weighted performance1310.5
Current official/published rating (highest between Raw, WR and WP)1413.0
Current highest rating achieved1547.1
Current floor (min rating allowed)1047.1
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)±122.4
Current Raw change used (final)0.0
Projected new Raw rating1413.0
Projected new Weighed rating1294.5
Projected new Weighted performance1310.5
Projected new final Raw rating (if new WP > new Raw)1413.0
Projected new highest rating1547.1
Projected new floor1047.1
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1413.0
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 rating1247.2
Current Weighted rating1182.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1247.2
Current highest rating achieved1247.2
Current floor (min rating allowed)747.2
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)±155.0
Current Raw change used (final)0.0
Projected new Raw rating1247.2
Projected new Weighed rating1087.9
Projected new Weighted performance799.2
Projected new final Raw rating (if new WP > new Raw)1247.2
Projected new highest rating1247.2
Projected new floor747.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1247.2
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
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)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
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)1200.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
11 Bojanala's Battle In The Kloof 2024 (Queens) 2024/09/21 2024/09/21 Bojanala Platina (NBR) Standard 60 0.83 5 5 0.0 1526.6 1515.4 Analysis
10 Bojanala Circuit Championships 3 of 4 2024 (U16) 2024/09/14 2024/09/14 Bojanala Platina (NBR) Standard 60 0.83 5 4 1.0 1526.6 1515.4 Analysis
9 Bojanala's FIDE In The Sparkling Waters 2024 (Rooks) 2024/08/16 2024/08/18 Bojanala Platina (NBR) Standard 120 1.00 6 5 3.0 1555.1 1547.1 Analysis
8 Bojanala's Clash Of Schools - Secondary 2024 (U17) 2024/07/27 2024/07/27 Bojanala Platina (NBR) Rapid 35 0.66 5 5 5.0 1471.3 1145.2 Analysis
7 Bojanala's Clash Of Schools 2024 (Championship) 2024/07/20 2024/07/20 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1471.3 1469.9 Analysis
6 Bojanala Circuit Championship 2 of 4 2024 (U14) 2024/06/15 2024/06/15 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.5 1410.0 1407.2 Analysis
5 Bojanala Circuit Championship 1 of 4 2024 (U14) 2024/05/25 2024/05/25 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1412.7 1411.0 Analysis
4 Bojanala Olienpark's One For The Ages 2024 (Bishops) 2024/04/20 2024/04/20 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1387.5 1392.3 Analysis
3 Bojanala's Rating Express 2024 (Bishops) 2024/04/06 2024/04/06 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1387.5 1392.3 Analysis
2 Bojanala Closed Chess Championships Finals 2024 (U14) 2024/02/09 2024/02/11 Bojanala Platina (NBR) Standard 120 1.00 5 5 2.5 1339.3 1353.4 Analysis
1 Bojanala Closed Chess Championships Stage 1 2024 (U14) 2024/01/27 2024/01/27 Bojanala Platina (NBR) Standard 60 0.83 5 4 3.5 1283.3 1286.5 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
30 Bojanala's Battle In The Kloof 2024 (Queens) 2024/09/21 2024/09/21 Bojanala Platina (NBR) Standard 60 0.83 5 5 0.0 1526.6 1515.4 Analysis
29 Bojanala Circuit Championships 3 of 4 2024 (U16) 2024/09/14 2024/09/14 Bojanala Platina (NBR) Standard 60 0.83 5 4 1.0 1526.6 1515.4 Analysis
28 Bojanala's FIDE In The Sparkling Waters 2024 (Rooks) 2024/08/16 2024/08/18 Bojanala Platina (NBR) Standard 120 1.00 6 5 3.0 1555.1 1547.1 Analysis
27 Bojanala's Clash Of Schools - Secondary 2024 (U17) 2024/07/27 2024/07/27 Bojanala Platina (NBR) Rapid 35 0.66 5 5 5.0 1471.3 1145.2 Analysis
26 Bojanala's Clash Of Schools 2024 (Championship) 2024/07/20 2024/07/20 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1471.3 1469.9 Analysis
25 Bojanala Circuit Championship 2 of 4 2024 (U14) 2024/06/15 2024/06/15 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.5 1410.0 1407.2 Analysis
24 Bojanala Circuit Championship 1 of 4 2024 (U14) 2024/05/25 2024/05/25 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1412.7 1411.0 Analysis
23 Bojanala Olienpark's One For The Ages 2024 (Bishops) 2024/04/20 2024/04/20 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1387.5 1392.3 Analysis
22 Bojanala's Rating Express 2024 (Bishops) 2024/04/06 2024/04/06 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1387.5 1392.3 Analysis
21 Bojanala Closed Chess Championships Finals 2024 (U14) 2024/02/09 2024/02/11 Bojanala Platina (NBR) Standard 120 1.00 5 5 2.5 1339.3 1353.4 Analysis
20 Bojanala Closed Chess Championships Stage 1 2024 (U14) 2024/01/27 2024/01/27 Bojanala Platina (NBR) Standard 60 0.83 5 4 3.5 1283.3 1286.5 Analysis
19 2023 Cross Border Chess Championships Gaborone vs Bojanala 2023/12/14 2023/12/16 Botswana (BOT) Standard 120 1.00 5 5 3.0 1327.9 1344.1 Analysis
18 Bojanala's Merry ChessMas 2023 (Rooks) 2023/12/09 2023/12/09 Bojanala Platina (NBR) Standard 60 0.83 5 5 1.0 1327.9 1344.1 Analysis
17 Bojanala School League 2023 (Primary School Open) 2023/08/19 2023/08/19 Bojanala Platina (NBR) Rapid 40 0.70 5 5 1.0 1386.1 1200.0 Analysis
16 Bojanala's Rosewood 2023 (Rooks) 2023/08/12 2023/08/12 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.0 1386.1 1381.5 Analysis
15 Bojanala's FIDE in the Sparkling Waters 2023 (Rooks) 2023/07/28 2023/07/30 Bojanala Platina (NBR) Standard 120 1.00 6 6 2.5 1422.3 1416.4 Analysis
14 Grenswag's Community Battle 2023 (Rooks) 2023/04/22 2023/04/22 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1406.1 1395.9 Analysis
13 Schoemies Kings & Queens 2023 (Rooks) 2023/03/18 2023/03/18 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.0 1442.0 1439.7 Analysis
12 One For The Ages 2023 (U14) 2023/02/18 2023/02/18 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1426.1 1422.1 Analysis
11 2022 South African Junior Team Chess Championships (U12 Open) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 7 5.0 1419.1 1415.1 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 53 30 5 18 32.5 61.3 96.2 1384.0 1480.2
White 26 17 3 6 18.5 71.2 179.8 1391.1 1570.9
Black 27 13 2 12 14.0 51.9 15.7 1377.1 1392.8
Standard All 48 25 5 18 27.5 57.3 62.0 1397.8 1459.8
White 23 14 3 6 15.5 67.4 147.8 1409.4 1557.2
Black 25 11 2 12 12.0 48.0 -17.0 1387.2 1370.2
Rapid All 5 5 0 0 5.0 100.0 425.0 1250.7 1675.7
White 3 3 0 0 3.0 100.0 425.0 1251.3 1676.3
Black 2 2 0 0 2.0 100.0 425.0 1249.9 1674.9
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 150 90 8 52 94.0 62.7 107.7 1311.2 1418.9
White 74 46 5 23 48.5 65.5 132.1 1308.9 1441.0
Black 76 44 3 29 45.5 59.9 83.9 1313.5 1397.3
Standard All 140 84 8 48 88.0 62.9 109.3 1309.1 1418.4
White 69 42 5 22 44.5 64.5 123.2 1309.6 1432.8
Black 71 42 3 26 43.5 61.3 95.8 1308.6 1404.4
Rapid All 10 6 0 4 6.0 60.0 85.0 1340.8 1425.8
White 5 4 0 1 4.0 80.0 255.0 1299.1 1554.1
Black 5 2 0 3 2.0 40.0 -85.0 1382.5 1297.5
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 1110099324 Roos, J (Justin) 8 2.5 2 1 5 31.3 1400.8 -159.4 1241.4 View list
2 1110136394 Botha, J (Johannes Cornelis) 7 2.5 2 1 4 35.7 1422.0 -121.4 1300.6 View list
3 211093260 Jansen Van Vuuren, M (Mari) 4 4.0 4 0 0 100.0 1438.1 425.0 1863.1 View list
4 1120117881 Potgieter, R (Reinhardt) 4 3.0 3 0 1 75.0 1411.5 212.5 1624.0 View list
5 1110143714 Terblanche, J (Johann) 4 3.0 3 0 1 75.0 1402.4 212.5 1614.9 View list
6 1110136771 Watt, C (Chad) 4 3.0 3 0 1 75.0 1407.4 212.5 1619.9 View list
7 1130131230 Changara, A (Alvis Tafadzwa) 4 1.5 1 1 2 37.5 1393.2 -106.3 1287.0 View list
8 1120133385 Myburgh, B (Braydan) 3 3.0 3 0 0 100.0 1449.4 425.0 1874.4 View list
9 1110131242 Changara, A (Adiel Tavonga) 3 2.0 2 0 1 66.7 1378.1 141.7 1519.7 View list
10 1090131247 Changara, A (Adrian Tafara) 3 1.0 1 0 2 33.3 1420.2 -141.7 1278.5 View list
11 1110099325 Nortman, WJ (Wilhelmus Johan) 3 1.0 1 0 2 33.3 1390.5 -141.7 1248.8 View list
12 2120111293 Gouws, K (Karah) 2 2.0 2 0 0 100.0 1422.8 425.0 1847.8 View list
13 1080156759 Mogapi, B (Blessing) 2 2.0 2 0 0 100.0 1428.7 425.0 1853.7 View list
14 2120136396 Monamatha, D (Diteboho) 2 2.0 2 0 0 100.0 1400.1 425.0 1825.1 View list
15 1100148730 Nkabinde, L (Lwazi) 2 2.0 2 0 0 100.0 1357.0 425.0 1782.0 View list
16 2110144055 Segalo, O (Ogone) 2 2.0 2 0 0 100.0 1429.4 425.0 1854.4 View list
17 2100132783 Sehunwe, L (Lethlogonolo) 2 2.0 2 0 0 100.0 1354.4 425.0 1779.4 View list
18 2110136768 Monare, O (Oratilwe) 2 1.5 1 1 0 75.0 1404.9 212.5 1617.4 View list
19 1110140059 Tshetlhe, B (Blessing) 2 1.5 1 1 0 75.0 1269.7 212.5 1482.2 View list
20 2110141710 Dikolomela, T (Tlhogi) 2 1.0 2 0 1 50.0 1424.0 0.0 1424.0 View list