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: 2024/08/28 (85 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 rating1453.0
Current Weighted rating1450.3
Current Weighted performance1278.9
Current official/published rating (highest between Raw, WR and WP)1453.0
Current highest rating achieved1466.0
Current floor (min rating allowed)966.0
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)±115.6
Current Raw change used (final)0.0
Projected new Raw rating1453.0
Projected new Weighed rating1334.7
Projected new Weighted performance1278.9
Projected new final Raw rating (if new WP > new Raw)1453.0
Projected new highest rating1466.0
Projected new floor966.0
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1453.0
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 rating1485.5
Current Weighted rating1477.6
Current Weighted performance1278.9
Current official/published rating (highest between Raw, WR and WP)1485.5
Current highest rating achieved1503.7
Current floor (min rating allowed)1003.7
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)±110.4
Current Raw change used (final)0.0
Projected new Raw rating1485.5
Projected new Weighed rating1360.4
Projected new Weighted performance1278.9
Projected new final Raw rating (if new WP > new Raw)1485.5
Projected new highest rating1503.7
Projected new floor1003.7
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1485.5
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 rating1408.0
Current Weighted rating1374.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1408.0
Current highest rating achieved1454.0
Current floor (min rating allowed)954.0
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 rating1266.3
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1454.0
Projected new floor954.0
Projected new K-facor32
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
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 rating1408.0
Current Weighted rating1374.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1408.0
Current highest rating achieved1454.0
Current floor (min rating allowed)954.0
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 rating1266.3
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1454.0
Projected new floor954.0
Projected new K-facor32
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
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 2024 Tuks Open Chess Tournament (Braille) 2024/08/28 2024/08/28 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1466.0 1503.7 Analysis
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
11 2024 Tuks Open Chess Tournament (Braille) 2024/08/28 2024/08/28 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1466.0 1503.7 Analysis
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 10 6 1 3 6.5 65.0 127.5 1333.5 1461.0
White 5 5 0 0 5.0 100.0 425.0 1223.9 1648.9
Black 5 1 1 3 1.5 30.0 -170.0 1443.1 1273.1
Standard All 10 6 1 3 6.5 65.0 127.5 1333.5 1461.0
White 5 5 0 0 5.0 100.0 425.0 1223.9 1648.9
Black 5 1 1 3 1.5 30.0 -170.0 1443.1 1273.1
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 51 35 4 12 37.0 72.5 191.7 1264.1 1455.8
White 25 18 3 4 19.5 78.0 238.0 1241.7 1479.7
Black 26 17 1 8 17.5 67.3 147.1 1285.7 1432.8
Standard All 51 35 4 12 37.0 72.5 191.7 1264.1 1455.8
White 25 18 3 4 19.5 78.0 238.0 1241.7 1479.7
Black 26 17 1 8 17.5 67.3 147.1 1285.7 1432.8
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) 6 4.5 3 3 0 75.0 1370.9 212.5 1583.4 View list
3 172060744 De Meyer, B (Bruno) 6 0.0 0 0 6 0.0 1377.4 -425.0 952.4 View list
4 194014587 Joubert, J (Jacques) 3 3.0 3 0 0 100.0 1322.8 425.0 1747.8 View list
5 159016308 Kotze, CP (Charl) 3 2.5 2 1 0 83.3 1442.1 283.3 1725.4 View list
6 1860146524 Blom, H (Hermanus Christo) 3 2.0 2 0 1 66.7 1434.6 141.7 1576.2 View list
7 158003751 Brown, S (Sam) 3 2.0 2 0 1 66.7 1401.5 141.7 1543.2 View list
8 170014653 Joubert, W (Willem) 2 2.0 2 0 0 100.0 1365.0 425.0 1790.0 View list
9 165011457 Grove, IJ (Izak) 2 2.0 2 0 0 100.0 1387.8 425.0 1812.8 View list
10 175032292 Roberts, MA (Mario) 2 2.0 2 0 0 100.0 1411.9 425.0 1836.9 View list
11 177036587 Strydom, BV (Brett) 2 2.0 2 0 0 100.0 1354.1 425.0 1779.1 View list
12 168042182 Vosloo, CJ (Cicel) 2 1.0 1 0 1 50.0 1313.9 0.0 1313.9 View list
13 263011234 Grobbelaar, FJ (Fransiena) 2 0.0 0 0 2 0.0 1425.9 -425.0 1000.9 View list
14 171003456 Bresler, C (Conrad) 1 1.0 1 0 0 100.0 1452.0 425.0 1877.0 View list
15 160037650 Theunis, DP (Desmond) 1 1.0 1 0 0 100.0 1452.0 425.0 1877.0 View list
16 171036861 Swanepoel, K (Karel) 1 1.0 1 0 0 100.0 1314.4 425.0 1739.4 View list
17 1600115352 Smal, R (Reginald) 1 1.0 1 0 0 100.0 1394.7 425.0 1819.7 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 105061029 Mfengu, N (Ndaluthando) 1 1.0 1 0 0 100.0 1417.9 425.0 1842.9 View list