Chess South Africa
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Chess South Africa
Commerford, J (Jeffrey)
Dob:
1956/02/01 (Adult)
Gender:
Male
Chess SA id:
1560159289
FIDE id:
Region:
West Rand (GWR)
Citizen:
RSA
Title(s):
Last active:
2024/06/08 (15 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
1281.6
Current Weighted rating
1232.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1281.6
Current highest rating achieved
1281.6
Current floor (min rating allowed)
781.6
Current K-factor
36
Games played this month
5
Score (S)
2.5
Expected score (We)
0.99
Difference (S-We)
1.25
Current Raw change (no limits, including tournament time weight)
45.1
Current min/max change allowed (with limits)
±147.6
Current Raw change used (final)
45.1
Projected new Raw rating
1326.7
Projected new Weighed rating
1134.5
Projected new Weighted performance
1307.9
Projected new final Raw rating (if new WP > new Raw)
1326.7
Projected new highest rating
1326.7
Projected new floor
826.7
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1326.7
Projected effective change (new Official - current Official)
+45.1
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 rating
1296.2
Current Weighted rating
1238.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1296.2
Current highest rating achieved
1296.2
Current floor (min rating allowed)
796.2
Current K-factor
36
Games played this month
5
Score (S)
2.5
Expected score (We)
1.05
Difference (S-We)
1.45
Current Raw change (no limits, including tournament time weight)
52.2
Current min/max change allowed (with limits)
±144.6
Current Raw change used (final)
52.2
Projected new Raw rating
1348.4
Projected new Weighed rating
1140.7
Projected new Weighted performance
1307.9
Projected new final Raw rating (if new WP > new Raw)
1348.4
Projected new highest rating
1348.4
Projected new floor
848.4
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1348.4
Projected effective change (new Official - current Official)
+52.2
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
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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
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
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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
History
Tournament:
FIDE in the West 2024 (Open)
Start:
2024/06/08
End:
2024/06/08
Host:
GWR
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
2.5
Main rating:
1281.6
Rating gain/loss:
45.1
Type rating:
1296.2
Rating gain/loss:
52.2
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
2
FIDE in the West 2024 (Open)
2024/06/08
2024/06/08
West Rand (GWR)
Standard
60
0.83
5
5
2.5
1281.6
1296.2
Analysis
1
2024 West Rand RHS Open (Open)
2024/04/13
2024/04/13
West Rand (GWR)
Standard
60
0.83
5
5
2.0
1249.0
1259.8
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
4
FIDE in the West 2024 (Open)
2024/06/08
2024/06/08
West Rand (GWR)
Standard
60
0.83
5
5
2.5
1281.6
1296.2
Analysis
3
2024 West Rand RHS Open (Open)
2024/04/13
2024/04/13
West Rand (GWR)
Standard
60
0.83
5
5
2.0
1249.0
1259.8
Analysis
2
Gauteng Premier's Games West Rand 2023
2023/12/02
2023/12/02
West Rand (GWR)
Standard
60
0.83
5
5
4.0
1214.0
1217.3
Analysis
1
West Rand at Bastion 2023 (Open)
2023/08/05
2023/08/05
West Rand (GWR)
Standard
60
0.83
5
5
2.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
10
4
1
5
4.5
45.0
-42.5
1540.7
1498.2
White
6
3
1
2
3.5
58.3
70.8
1506.1
1576.9
Black
4
1
0
3
1.0
25.0
-212.5
1592.5
1380.0
Standard
All
10
4
1
5
4.5
45.0
-42.5
1540.7
1498.2
White
6
3
1
2
3.5
58.3
70.8
1506.1
1576.9
Black
4
1
0
3
1.0
25.0
-212.5
1592.5
1380.0
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
20
10
1
9
10.5
52.5
21.3
1405.8
1427.1
White
12
7
1
4
7.5
62.5
106.3
1412.5
1518.7
Black
8
3
0
5
3.0
37.5
-106.3
1395.8
1289.6
Standard
All
20
10
1
9
10.5
52.5
21.3
1405.8
1427.1
White
12
7
1
4
7.5
62.5
106.3
1412.5
1518.7
Black
8
3
0
5
3.0
37.5
-106.3
1395.8
1289.6
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1130131230
Changara, A (Alvis Tafadzwa)
1
1.0
1
0
0
100.0
1249.0
425.0
1674.0
View list
2
194017485
Lechalaba, K (Kenneth)
1
1.0
1
0
0
100.0
1214.0
425.0
1639.0
View list
3
1010148075
Hennings, B (Bevan)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
4
1120152493
Hadebe, P (Paul)
1
1.0
1
0
0
100.0
1281.6
425.0
1706.6
View list
5
290024364
Molao, R (Rethabile)
1
1.0
1
0
0
100.0
1214.0
425.0
1639.0
View list
6
2070100937
Maseko, U (Unathi)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
7
1670191386
Makebe, N (Neo)
1
1.0
1
0
0
100.0
1214.0
425.0
1639.0
View list
8
1070136214
Visi, M (Moloko)
1
1.0
1
0
0
100.0
1249.0
425.0
1674.0
View list
9
1530149203
Van Rensburg, R (Rudy)
1
1.0
1
0
0
100.0
1281.6
425.0
1706.6
View list
10
1720144541
Phakathi, S (Siyinqaba)
1
1.0
1
0
0
100.0
1214.0
425.0
1639.0
View list
11
1100148730
Nkabinde, L (Lwazi)
1
0.5
0
1
0
50.0
1281.6
0.0
1281.6
View list
12
198050912
Caleni, T (Thulani)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
13
1110140059
Tshetlhe, B (Blessing)
1
0.0
0
0
1
0.0
1249.0
-425.0
824.0
View list
14
1110103928
Slabbert, ZN (Zander Nicolaas)
1
0.0
0
0
1
0.0
1249.0
-425.0
824.0
View list
15
1080136200
Sehularo, K (Kganya)
1
0.0
0
0
1
0.0
1249.0
-425.0
824.0
View list
16
1100103439
Mungal, E (Ethan)
1
0.0
0
0
1
0.0
1281.6
-425.0
856.6
View list
17
197071832
Mthembu, N (Nkululeko)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
18
177017896
Letsoalo, PM (Peter)
1
0.0
0
0
1
0.0
1281.6
-425.0
856.6
View list
19
104009473
Fihla, LL (Lonwabo)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
20
1730144539
Collins, H (Harry)
1
0.0
0
0
1
0.0
1214.0
-425.0
789.0
View list