Player Page

Grib, J (Johannes)
Dob: 1971/09/01 (Adult)
Gender: Male
Chess SA id: 171011166
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/03/09 (90 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
Curent Raw rating1466.0
Curent Weighted rating1442.9
Curent Weighted performance1309.4
Current official/published rating (highest between Raw, WR and WP)1466.0
Current floor (min rating allowed)966.0
Current highest rating achieved1466.0
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)±113.5
Current Raw change used (final)0.0
Projected new Raw rating1466.0
Projected new Weighed rating1445.1
Projected new Weighted performance1309.4
Projected new official/published rating (highest between new Raw, new WR and new WP)1466.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1466.0
Projected new floor966.0
Projected new K-facor32
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
Curent Raw rating1503.7
Curent Weighted rating1462.0
Curent Weighted performance1307.1
Current official/published rating (highest between Raw, WR and WP)1503.7
Current floor (min rating allowed)1003.7
Current highest rating achieved1503.7
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)±107.6
Current Raw change used (final)0.0
Projected new Raw rating1503.7
Projected new Weighed rating1466.2
Projected new Weighted performance1307.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1503.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1503.7
Projected new floor1003.7
Projected new K-facor32
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
Curent Raw rating1408.0
Curent Weighted rating1344.2
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1408.0
Current floor (min rating allowed)954.0
Current highest rating achieved1454.0
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)±123.3
Current Raw change used (final)0.0
Projected new Raw rating1408.0
Projected new Weighed rating1350.9
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1408.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1454.0
Projected new floor954.0
Projected new K-facor32
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
Curent Raw rating1408.0
Curent Weighted rating1344.2
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1408.0
Current floor (min rating allowed)954.0
Current highest rating achieved1454.0
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)±123.3
Current Raw change used (final)0.0
Projected new Raw rating1408.0
Projected new Weighed rating1350.9
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1408.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1454.0
Projected new floor954.0
Projected new K-facor32
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 South African Braille Open 2024 2024/03/09 2024/03/09 Cape Winelands (WCW) Standard 60 0.83 5 5 4.0 1452.0 1496.3 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
10 South African Braille Open 2024 2024/03/09 2024/03/09 Cape Winelands (WCW) Standard 60 0.83 5 5 4.0 1452.0 1496.3 Analysis
9 2023 Tuks Open Chess Tournament (Braille) 2023/10/07 2023/10/07 Tshwane (GTP) Standard 60 0.83 4 4 2.0 1433.9 1435.6 Analysis
8 ANIME @ Play Chess 2023 (Braille) 2023/08/12 2023/08/12 Ekurhuleni (GE) Standard 60 0.83 4 4 2.5 1440.5 1444.6 Analysis
7 2022 Wynie Robbertse Open (Development) 2022/10/08 2022/10/08 Tshwane (GTP) Standard 60 0.83 5 4 4.0 1419.8 1420.3 Analysis
6 Ekurhuleni Chess Springs Club Open 2022 (F) 2022/09/03 2022/09/03 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1417.9 1418.7 Analysis
5 2019 South African Braille Championship 2020/01/11 2020/01/12 4 Knights (4K) Standard 90 0.94 5 5 4.0 1394.7 1412.3 Analysis
4 2019 Gauteng Braille Open 2019/10/26 2019/10/26 Tshwane (GTP) Standard 60 0.83 4 4 4.0 1357.8 1369.4 Analysis
3 2019 SWVG Arnold Classic (Blind) 2019/05/18 2019/05/18 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1313.4 1316.0 Analysis
2 South African Braille Championships 2018 2018/12/21 2018/12/23 4 Knights (4K) Standard 120 1.00 5 5 2.5 1314.4 1318.2 Analysis
1 SWVG Arnold Classic Rapid & Blitz 2018 (Braille) 2018/05/18 2018/05/18 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1296.1 1296.1 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 5 4 0 1 4.0 80.0 255.0 1292.4 1547.4
White 3 3 0 0 3.0 100.0 425.0 1215.6 1640.6
Black 2 1 0 1 1.0 50.0 0.0 1407.7 1407.7
Standard All 5 4 0 1 4.0 80.0 255.0 1292.4 1547.4
White 3 3 0 0 3.0 100.0 425.0 1215.6 1640.6
Black 2 1 0 1 1.0 50.0 0.0 1407.7 1407.7
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 46 33 3 10 34.5 75.0 212.5 1252.1 1464.6
White 23 16 3 4 17.5 76.1 221.7 1242.1 1463.9
Black 23 17 0 6 17.0 73.9 203.3 1262.1 1465.3
Standard All 46 33 3 10 34.5 75.0 212.5 1252.1 1464.6
White 23 16 3 4 17.5 76.1 221.7 1242.1 1463.9
Black 23 17 0 6 17.0 73.9 203.3 1262.1 1465.3
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 281011165 Grib, J (Jessica) 7 7.0 7 0 0 100.0 1390.6 425.0 1815.6 View list
2 167006724 De Nobrega, FP (Florindo) 5 3.5 2 3 0 70.0 1351.8 170.0 1521.8 View list
3 172060744 De Meyer, B (Bruno) 5 0.0 0 0 5 0.0 1359.7 -425.0 934.7 View list
4 194014587 Joubert, J (Jacques) 3 3.0 3 0 0 100.0 1322.8 425.0 1747.8 View list
5 158003751 Brown, S (Sam) 3 2.0 2 0 1 66.7 1401.5 141.7 1543.2 View list
6 159016308 Kotze, CP (Charl) 2 2.0 2 0 0 100.0 1430.2 425.0 1855.2 View list
7 170014653 Joubert, W (Willem) 2 2.0 2 0 0 100.0 1365.0 425.0 1790.0 View list
8 165011457 Grove, IJ (Izak) 2 2.0 2 0 0 100.0 1387.8 425.0 1812.8 View list
9 177036587 Strydom, BV (Brett) 2 2.0 2 0 0 100.0 1354.1 425.0 1779.1 View list
10 1860146524 Blom, H (Hermanus Christo) 2 2.0 2 0 0 100.0 1418.8 425.0 1843.8 View list
11 168042182 Vosloo, CJ (Cicel) 2 1.0 1 0 1 50.0 1313.9 0.0 1313.9 View list
12 263011234 Grobbelaar, FJ (Fransiena) 2 0.0 0 0 2 0.0 1425.9 -425.0 1000.9 View list
13 171003456 Bresler, C (Conrad) 1 1.0 1 0 0 100.0 1452.0 425.0 1877.0 View list
14 160037650 Theunis, DP (Desmond) 1 1.0 1 0 0 100.0 1452.0 425.0 1877.0 View list
15 171036861 Swanepoel, K (Karel) 1 1.0 1 0 0 100.0 1314.4 425.0 1739.4 View list
16 1600115352 Smal, R (Reginald) 1 1.0 1 0 0 100.0 1394.7 425.0 1819.7 View list
17 175032292 Roberts, MA (Mario) 1 1.0 1 0 0 100.0 1357.8 425.0 1782.8 View list
18 100027029 Neethling, F (Francois) 1 1.0 1 0 0 100.0 1419.8 425.0 1844.8 View list
19 1030162582 Ndlovu, J (Jonas) 1 1.0 1 0 0 100.0 1433.9 425.0 1858.9 View list
20 187061029 Mfengu, N (Ndaluthando) 1 1.0 1 0 0 100.0 1417.9 425.0 1842.9 View list