Chess South Africa
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Chess South Africa
Koopman, L (Leo-Arlin)
Dob:
2015/07/06 (U10)
Gender:
Male
Chess SA id:
1150153170
FIDE id:
Region:
West Coast (WCU)
Citizen:
RSA
Title(s):
Last active:
2024/05/05 (54 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
1210.8
Current Weighted rating
1198.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1210.8
Current highest rating achieved
1227.2
Current floor (min rating allowed)
727.2
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)
±163.3
Current Raw change used (final)
0.0
Projected new Raw rating
1210.8
Projected new Weighed rating
1103.1
Projected new Weighted performance
1058.3
Projected new final Raw rating (if new WP > new Raw)
1210.8
Projected new highest rating
1227.2
Projected new floor
727.2
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1210.8
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 rating
1180.9
Current Weighted rating
1198.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1198.5
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)
±170.4
Current Raw change used (final)
0.0
Projected new Raw rating
1180.9
Projected new Weighed rating
1102.5
Projected new Weighted performance
375.8
Projected new final Raw rating (if new WP > new Raw)
1180.9
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)
1180.9
Projected effective change (new Official - current Official)
-17.6
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
1252.9
Current Weighted rating
1205.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1252.9
Current highest rating achieved
1252.9
Current floor (min rating allowed)
752.9
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)
±153.8
Current Raw change used (final)
0.0
Projected new Raw rating
1252.9
Projected new Weighed rating
1109.9
Projected new Weighted performance
951.7
Projected new final Raw rating (if new WP > new Raw)
1252.9
Projected new highest rating
1252.9
Projected new floor
752.9
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1252.9
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
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
3
Western Cape PS Individuals Championship 2024 (U9 Boys)
2024/05/04
2024/05/05
West Coast (WCU)
Standard
60
0.83
6
6
2.0
1227.2
1200.0
Analysis
2
West Coast Schools Chess Prestige Championships 2024 (U9 Boys)
2024/03/09
2024/03/09
West Coast (WCU)
Rapid
30
0.60
5
5
3.0
1221.6
1243.2
Analysis
1
Bo-Weskus Skole Prestige 2024 (O9 Seuns)
2024/02/10
2024/02/10
West Coast (WCU)
Rapid
30
0.60
5
5
4.0
1187.0
1184.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
4
Western Cape PS Individuals Championship 2024 (U9 Boys)
2024/05/04
2024/05/05
West Coast (WCU)
Standard
60
0.83
6
6
2.0
1227.2
1200.0
Analysis
3
West Coast Schools Chess Prestige Championships 2024 (U9 Boys)
2024/03/09
2024/03/09
West Coast (WCU)
Rapid
30
0.60
5
5
3.0
1221.6
1243.2
Analysis
2
Bo-Weskus Skole Prestige 2024 (O9 Seuns)
2024/02/10
2024/02/10
West Coast (WCU)
Rapid
30
0.60
5
5
4.0
1187.0
1184.0
Analysis
1
Bo-Weskus Skole Prestige 2023 (O9 Seuns)
2023/03/04
2023/03/04
West Coast (WCU)
Rapid
30
0.60
5
5
2.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
16
9
0
7
9.0
56.3
53.1
1216.3
1269.4
White
7
3
0
4
3.0
42.9
-60.7
1234.4
1173.7
Black
9
6
0
3
6.0
66.7
141.7
1202.1
1343.8
Standard
All
6
2
0
4
2.0
33.3
-141.7
1290.2
1148.5
White
3
1
0
2
1.0
33.3
-141.7
1321.4
1179.7
Black
3
1
0
2
1.0
33.3
-141.7
1259.0
1117.4
Rapid
All
10
7
0
3
7.0
70.0
170.0
1171.9
1341.9
White
4
2
0
2
2.0
50.0
0.0
1169.2
1169.2
Black
6
5
0
1
5.0
83.3
283.3
1173.7
1457.0
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
21
10
2
9
11.0
52.4
20.2
1212.2
1232.5
White
10
4
1
5
4.5
45.0
-42.5
1231.1
1188.6
Black
11
6
1
4
6.5
59.1
77.3
1195.1
1272.4
Standard
All
6
2
0
4
2.0
33.3
-141.7
1290.2
1148.5
White
3
1
0
2
1.0
33.3
-141.7
1321.4
1179.7
Black
3
1
0
2
1.0
33.3
-141.7
1259.0
1117.4
Rapid
All
15
8
2
5
9.0
60.0
85.0
1181.0
1266.0
White
7
3
1
3
3.5
50.0
0.0
1192.4
1192.4
Black
8
5
1
2
5.5
68.8
159.4
1171.1
1330.5
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1150139119
Steenkamp, W (Willem)
3
0.0
0
0
3
0.0
1204.7
-425.0
779.7
View list
2
1160192590
Esterhuyse, N (Nicol)
2
2.0
2
0
0
100.0
1204.3
425.0
1629.3
View list
3
1160148063
Marner, L (Loannes)
1
1.0
1
0
0
100.0
1227.2
425.0
1652.2
View list
4
1150143115
Solomons, C (Chadley)
1
1.0
1
0
0
100.0
1187.0
425.0
1612.0
View list
5
1160153148
Sacco, A (Aldrin)
1
1.0
1
0
0
100.0
1187.0
425.0
1612.0
View list
6
1150139120
Van Wyk, N (Nicolaas)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
7
1160153833
Van Eeden, C (Christiaan)
1
1.0
1
0
0
100.0
1227.2
425.0
1652.2
View list
8
1160151390
Oberholzer, J (Justin)
1
1.0
1
0
0
100.0
1221.6
425.0
1646.6
View list
9
1150143114
Mouton, L (Luhaygo)
1
1.0
1
0
0
100.0
1187.0
425.0
1612.0
View list
10
1150154608
Chetty, D (Duke)
1
1.0
1
0
0
100.0
1221.6
425.0
1646.6
View list
11
1150153163
Brits, A (Arno)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
12
1140139148
Milford, M (Mihasquo)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
13
1150148291
Musakwa, C (Cole)
1
0.0
0
0
1
0.0
1227.2
-425.0
802.2
View list
14
1160148876
Prins, K (Kai)
1
0.0
0
0
1
0.0
1227.2
-425.0
802.2
View list
15
1150150376
Erasmus, D (Daniel)
1
0.0
0
0
1
0.0
1221.6
-425.0
796.6
View list
16
1150192630
Don, E (El Deano)
1
0.0
0
0
1
0.0
1221.6
-425.0
796.6
View list
17
1150150107
Burnett, T (Tomas)
1
0.0
0
0
1
0.0
1227.2
-425.0
802.2
View list
18
1150139115
Bester, N (Neyma)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list