Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Modirwa, O (Ofentse)
Dob:
2002/01/18 (Adult)
Gender:
Male
Chess SA id:
102023635
FIDE id:
Region:
Mangaung (FMB)
Citizen:
RSA
Title(s):
Last active:
2024/10/12 (59 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
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 rating
1761.7
Current Weighted rating
1725.3
Current Weighted performance
1654.0
Current official/published rating (highest between Raw, WR and WP)
1761.7
Current highest rating achieved
1761.7
Current floor (min rating allowed)
1261.7
Current K-factor
28
Games played this month
0
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)
±74.5
Current Raw change used (final)
0.0
Projected new Raw rating
1761.7
Projected new Weighed rating
1589.1
Projected new Weighted performance
1654.0
Projected new final Raw rating (if new WP > new Raw)
1761.7
Projected new highest rating
1761.7
Projected new floor
1261.7
Projected new K-facor
28
Projected new official/published rating (highest between new Raw, new WR and new WP)
1761.7
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 rating
1777.1
Current Weighted rating
1762.2
Current Weighted performance
1698.0
Current official/published rating (highest between Raw, WR and WP)
1777.1
Current highest rating achieved
1812.4
Current floor (min rating allowed)
1312.4
Current K-factor
24
Games played this month
0
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)
±72.9
Current Raw change used (final)
0.0
Projected new Raw rating
1777.1
Projected new Weighed rating
1623.5
Projected new Weighted performance
1698.0
Projected new final Raw rating (if new WP > new Raw)
1777.1
Projected new highest rating
1812.4
Projected new floor
1312.4
Projected new K-facor
24
Projected new official/published rating (highest between new Raw, new WR and new WP)
1777.1
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 rating
1613.2
Current Weighted rating
1558.2
Current Weighted performance
1554.6
Current official/published rating (highest between Raw, WR and WP)
1613.2
Current highest rating achieved
1613.2
Current floor (min rating allowed)
1113.2
Current K-factor
28
s
Games played this month
0
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)
±92.0
Current Raw change used (final)
0.0
Projected new Raw rating
1613.2
Projected new Weighed rating
1436.8
Projected new Weighted performance
1554.6
Projected new final Raw rating (if new WP > new Raw)
1613.2
Projected new highest rating
1613.2
Projected new floor
1113.2
Projected new K-facor
28
Projected new official/published rating (highest between new Raw, new WR and new WP)
1613.2
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 rating
1467.8
Current Weighted rating
1452.1
Current Weighted performance
1358.0
Current official/published rating (highest between Raw, WR and WP)
1467.8
Current highest rating achieved
1490.8
Current floor (min rating allowed)
990.8
Current K-factor
32
Games played this month
0
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)
±113.2
Current Raw change used (final)
0.0
Projected new Raw rating
1467.8
Projected new Weighed rating
1335.7
Projected new Weighted performance
1358.0
Projected new final Raw rating (if new WP > new Raw)
1467.8
Projected new highest rating
1490.8
Projected new floor
990.8
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1467.8
Projected effective change (new Official - current Official)
=0.0
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
11
Mangaung Metro Chess 11-12 October 2024 (A)
2024/10/11
2024/10/12
Mangaung (FMB)
Standard
62
0.84
5
5
4.5
1745.5
1762.9
Analysis
10
Smart Chess Blitz 2024 (A)
2024/09/07
2024/09/07
Mangaung (FMB)
Blitz
5
0.18
7
7
5.5
1745.6
1443.2
Analysis
9
Mangaung Metro Chess 16-17 August 2024 (A)
2024/08/16
2024/08/17
Mangaung (FMB)
Standard
62
0.84
5
5
3.5
1728.2
1792.2
Analysis
8
Trompsburg Club Tournament 2024 (A)
2024/08/10
2024/08/10
Xhariep (FXT)
Standard
60
0.83
5
5
4.5
1728.2
1792.2
Analysis
7
Mangaung Metro Chess 3 August 2024 (A)
2024/08/03
2024/08/03
Mangaung (FMB)
Rapid
32
0.63
5
5
4.5
1728.2
1576.4
Analysis
6
Morris Club Championship 2024
2024/07/26
2024/07/27
Mangaung (FMB)
Standard
62
0.84
5
5
4.5
1728.2
1792.2
Analysis
5
10th Piet van Zyl Chess Festival 2024 (A+B)
2024/05/24
2024/05/25
Mangaung (FMB)
Standard
90
0.94
5
5
3.5
1714.8
1793.9
Analysis
4
Mangaung Metro Chess 10-11 May 2024 (A)
2024/05/10
2024/05/11
Mangaung (FMB)
Standard
62
0.84
5
5
3.5
1714.8
1793.9
Analysis
3
Mangaung Metro Chess 12-13 April 2024 (A)
2024/04/12
2024/04/13
Mangaung (FMB)
Standard
62
0.84
5
5
3.5
1729.6
1812.4
Analysis
2
Mangaung Metro Chess 9 March 2024 (A)
2024/03/09
2024/03/09
Mangaung (FMB)
Rapid
32
0.63
5
5
3.5
1746.9
1588.2
Analysis
1
Mangaung Metro Chess 10 February 2024 (A)
2024/02/10
2024/02/10
Mangaung (FMB)
Rapid
32
0.63
5
5
4.0
1746.2
1570.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
52
Mangaung Metro Chess 11-12 October 2024 (A)
2024/10/11
2024/10/12
Mangaung (FMB)
Standard
62
0.84
5
5
4.5
1745.5
1762.9
Analysis
51
Smart Chess Blitz 2024 (A)
2024/09/07
2024/09/07
Mangaung (FMB)
Blitz
5
0.18
7
7
5.5
1745.6
1443.2
Analysis
50
Mangaung Metro Chess 16-17 August 2024 (A)
2024/08/16
2024/08/17
Mangaung (FMB)
Standard
62
0.84
5
5
3.5
1728.2
1792.2
Analysis
49
Trompsburg Club Tournament 2024 (A)
2024/08/10
2024/08/10
Xhariep (FXT)
Standard
60
0.83
5
5
4.5
1728.2
1792.2
Analysis
48
Mangaung Metro Chess 3 August 2024 (A)
2024/08/03
2024/08/03
Mangaung (FMB)
Rapid
32
0.63
5
5
4.5
1728.2
1576.4
Analysis
47
Morris Club Championship 2024
2024/07/26
2024/07/27
Mangaung (FMB)
Standard
62
0.84
5
5
4.5
1728.2
1792.2
Analysis
46
10th Piet van Zyl Chess Festival 2024 (A+B)
2024/05/24
2024/05/25
Mangaung (FMB)
Standard
90
0.94
5
5
3.5
1714.8
1793.9
Analysis
45
Mangaung Metro Chess 10-11 May 2024 (A)
2024/05/10
2024/05/11
Mangaung (FMB)
Standard
62
0.84
5
5
3.5
1714.8
1793.9
Analysis
44
Mangaung Metro Chess 12-13 April 2024 (A)
2024/04/12
2024/04/13
Mangaung (FMB)
Standard
62
0.84
5
5
3.5
1729.6
1812.4
Analysis
43
Mangaung Metro Chess 9 March 2024 (A)
2024/03/09
2024/03/09
Mangaung (FMB)
Rapid
32
0.63
5
5
3.5
1746.9
1588.2
Analysis
42
Mangaung Metro Chess 10 February 2024 (A)
2024/02/10
2024/02/10
Mangaung (FMB)
Rapid
32
0.63
5
5
4.0
1746.2
1570.0
Analysis
41
2023 Moja Chess Extravaganza (Blitz)
2023/10/03
2023/10/03
Frances Baard (NCF)
Blitz
5
0.18
7
6
3.0
1671.0
1464.6
Analysis
40
2023 Moja Chess Extravaganza (B)
2023/09/30
2023/10/04
Frances Baard (NCF)
Standard
120
1.00
9
9
7.0
1671.0
1672.0
Analysis
39
St Andrews 19 August 2023 (A)
2023/08/19
2023/08/19
Mangaung (FMB)
Rapid
32
0.63
5
5
4.0
1667.1
1463.6
Analysis
38
Morris Club Championship 2023
2023/07/28
2023/07/28
Mangaung (FMB)
Rapid
32
0.63
5
5
5.0
1651.6
1408.9
Analysis
37
Inter Regional Chess Championship 2023 (Adults)
2023/05/19
2023/05/20
Mangaung (FMB)
Standard
62
0.84
5
5
5.0
1633.3
1651.0
Analysis
36
Balans Blitz Chess 2022 (A)
2022/08/13
2022/08/13
Mangaung (FMB)
Blitz
5
0.18
7
6
4.0
1632.7
1490.8
Analysis
35
Smart Chess Blitz 2022 (Open)
2022/05/07
2022/05/07
Mangaung (FMB)
Blitz
7
0.23
7
7
6.5
1625.6
1433.8
Analysis
34
Moja Open 2022 (Prestige)
2022/03/19
2022/03/22
Frances Baard (NCF)
Standard
120
1.00
7
0
0.0
1623.3
1653.8
Analysis
33
Kopanong Chess Tournament 2022 (A)
2022/03/05
2022/03/05
Xhariep (FXT)
Standard
60
0.83
5
4
3.0
1623.3
1653.8
Analysis
1
2
3
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
57
38
14
5
45.0
78.9
246.1
1482.0
1728.1
White
30
24
4
2
26.0
86.7
311.7
1438.4
1750.1
Black
27
14
10
3
19.0
70.4
173.1
1530.5
1703.6
Standard
All
35
23
9
3
27.5
78.6
242.9
1491.0
1733.8
White
18
15
2
1
16.0
88.9
330.6
1434.1
1764.7
Black
17
8
7
2
11.5
67.6
150.0
1551.2
1701.2
Rapid
All
15
10
4
1
12.0
80.0
255.0
1451.2
1706.2
White
8
6
1
1
6.5
81.3
265.6
1436.0
1701.6
Black
7
4
3
0
5.5
78.6
242.9
1468.7
1711.6
Blitz
All
7
5
1
1
5.5
78.6
242.9
1503.1
1745.9
White
4
3
1
0
3.5
87.5
318.8
1462.6
1781.4
Black
3
2
0
1
2.0
66.7
141.7
1557.0
1698.7
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
283
170
67
46
203.5
71.9
186.2
1417.6
1603.9
White
146
91
32
23
107.0
73.3
197.9
1405.8
1603.8
Black
137
79
35
23
96.5
70.4
173.7
1430.2
1604.0
Standard
All
217
124
59
34
153.5
70.7
176.3
1408.1
1584.3
White
113
67
28
18
81.0
71.7
184.3
1397.2
1581.5
Black
104
57
31
16
72.5
69.7
167.5
1419.8
1587.4
Rapid
All
35
25
6
4
28.0
80.0
255.0
1391.6
1646.6
White
18
15
2
1
16.0
88.9
330.6
1373.2
1703.8
Black
17
10
4
3
12.0
70.6
175.0
1411.1
1586.1
Blitz
All
31
21
2
8
22.0
71.0
178.2
1514.1
1692.3
White
15
9
2
4
10.0
66.7
141.7
1509.6
1651.2
Black
16
12
0
4
12.0
75.0
212.5
1518.3
1730.8
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
102034070
Senatle, K (Kamogelo)
9
7.5
7
1
1
83.3
1692.5
283.3
1975.8
View list
2
108086187
Rossouw, J (Johrne)
6
4.5
4
1
1
75.0
1694.0
212.5
1906.5
View list
3
101025290
Motaung, L (Lehlohonolo)
6
3.5
1
5
0
58.3
1532.2
70.8
1603.0
View list
4
101084890
Nophale, N (Ntokozo)
5
3.0
2
2
1
60.0
1696.9
85.0
1781.9
View list
5
198082772
Sekharume, L (Lefu)
5
2.0
1
2
2
40.0
1604.7
-85.0
1519.7
View list
6
160006655
De Lange, C (Christo)
4
3.0
3
0
1
75.0
1660.9
212.5
1873.4
View list
7
191015783
Kleinhans, F (Fanie)
4
3.0
3
0
1
75.0
1533.3
212.5
1745.8
View list
8
1020107617
Ragedi, E (Enos)
4
3.0
3
0
1
75.0
1725.8
212.5
1938.3
View list
9
1050136744
Pretorius, L (Leighan)
4
3.0
2
2
0
75.0
1709.5
212.5
1922.0
View list
10
104030572
Posholi, K (Kamohelo)
4
1.5
1
1
2
37.5
1524.2
-106.3
1417.9
View list
11
163092629
Goosen, P (Pierre)
3
3.0
3
0
0
100.0
1445.3
425.0
1870.3
View list
12
102053241
Buchner, E (Eduard)
3
2.5
2
1
0
83.3
1575.4
283.3
1858.7
View list
13
1100098157
De Villiers, H (Hj)
3
2.5
2
1
0
83.3
1735.5
283.3
2018.8
View list
14
1030097479
Halter, P (Prince)
3
2.5
2
1
0
83.3
1668.0
283.3
1951.3
View list
15
101024593
Moloto, N (Nnani)
3
2.5
2
1
0
83.3
1471.4
283.3
1754.8
View list
16
181002839
Botes, D (Dion)
3
2.0
2
0
1
66.7
1571.0
141.7
1712.7
View list
17
103084778
Njoku, G (Greatman)
3
1.5
1
1
1
50.0
1630.9
0.0
1630.9
View list
18
107052210
Kotze, CJ (Christiaan)
3
1.5
0
3
0
50.0
1610.9
0.0
1610.9
View list
19
194020362
Manaba, T (Thembani)
3
1.0
1
0
2
33.3
1525.4
-141.7
1383.7
View list
20
102039624
Van Der Westhuizen, PJ (Petrus)
3
1.0
1
0
2
33.3
1541.4
-141.7
1399.7
View list