Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Ackerman, M (Mervin)
Dob:
2006/04/30 (U20)
Gender:
Male
Chess SA id:
1060300368
FIDE id:
Region:
Sarah Baartman (ESB)
Citizen:
RSA
Title(s):
Last active:
2024/05/10 (10 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
Curent Raw rating
1080.7
Curent Weighted rating
1181.3
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1181.3
Current floor (min rating allowed)
580.7
Current highest rating achieved
1080.7
Current K-factor
40
Games played this month
5
Score (S)
2.0
Expected score (We)
2.03
Difference (S-We)
-0.03
Current Raw change (no limits, including tournament time weight)
-0.8
Current min/max change allowed (with limits)
±196.5
Current Raw change used (final)
-0.8
Projected new Raw rating
1079.9
Projected new Weighed rating
1172.5
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1172.5
Projected effective change (new Official - current Official)
-8.8
Projected new highest rating
1080.7
Projected new floor
580.7
Projected new K-facor
40
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 rating
1050.8
Curent Weighted rating
1176.6
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1176.6
Current floor (min rating allowed)
550.8
Current highest rating achieved
1050.8
Current K-factor
40
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)
±205.1
Current Raw change used (final)
0.0
Projected new Raw rating
1050.8
Projected new Weighed rating
1165.7
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1165.7
Projected effective change (new Official - current Official)
-10.9
Projected new highest rating
1050.8
Projected new floor
550.8
Projected new K-facor
40
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 rating
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
700.0
Current highest rating achieved
0.0
Current K-factor
40
Games played this month
5
Score (S)
2.0
Expected score (We)
2.71
Difference (S-We)
-0.71
Current Raw change (no limits, including tournament time weight)
-28.4
Current min/max change allowed (with limits)
±165.8
Current Raw change used (final)
-28.4
Projected new Raw rating
1171.6
Projected new Weighed rating
1197.7
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1197.7
Projected effective change (new Official - current Official)
-2.3
Projected new highest rating
1171.6
Projected new floor
671.6
Projected new K-facor
40
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 rating
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
700.0
Current highest rating achieved
0.0
Current K-factor
40
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
1200.0
Projected new Weighted performance
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
Projected new highest rating
0.0
Projected new floor
700.0
Projected new K-facor
40
Tournaments
History
Tournament:
Humansdorp CMC Schools Trials 2024 (U19 Boys)
Start:
2024/05/10
End:
2024/05/10
Host:
ESB
Type:
Rapid
Time:
32
Time weight:
0.63
Rounds:
5
Games:
5
Score:
2.0
Main rating:
1080.7
Rating gain/loss:
-0.8
Type rating:
1200.0
Rating gain/loss:
-28.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
4
Humansdorp CMC Schools Trials 2024 (U19 Boys)
2024/05/10
2024/05/10
Sarah Baartman (ESB)
Rapid
32
0.63
6
5
2.0
1080.7
1200.0
Analysis
3
Kouga Mayor's Cup Final 2024 (Open)
2024/04/12
2024/04/13
Sarah Baartman (ESB)
Standard
62
0.84
5
0
0.0
1080.7
1050.8
Analysis
2
SBDCU Trial 2 2024 (Open)
2024/03/23
2024/03/23
Sarah Baartman (ESB)
Standard
62
0.84
5
5
1.0
1200.0
1200.0
Analysis
1
Kouga Mayor's Cup 2024 (Open)
2024/03/08
2024/03/09
Sarah Baartman (ESB)
Standard
62
0.84
6
5
0.0
1200.0
1200.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
4
Humansdorp CMC Schools Trials 2024 (U19 Boys)
2024/05/10
2024/05/10
Sarah Baartman (ESB)
Rapid
32
0.63
6
5
2.0
1080.7
1200.0
Analysis
3
Kouga Mayor's Cup Final 2024 (Open)
2024/04/12
2024/04/13
Sarah Baartman (ESB)
Standard
62
0.84
5
0
0.0
1080.7
1050.8
Analysis
2
SBDCU Trial 2 2024 (Open)
2024/03/23
2024/03/23
Sarah Baartman (ESB)
Standard
62
0.84
5
5
1.0
1200.0
1200.0
Analysis
1
Kouga Mayor's Cup 2024 (Open)
2024/03/08
2024/03/09
Sarah Baartman (ESB)
Standard
62
0.84
6
5
0.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
15
3
0
12
3.0
20.0
-255.0
1210.1
955.1
White
7
1
0
6
1.0
14.3
-303.6
1206.0
902.4
Black
8
2
0
6
2.0
25.0
-212.5
1213.7
1001.2
Standard
All
10
1
0
9
1.0
10.0
-340.0
1237.7
897.7
White
5
1
0
4
1.0
20.0
-255.0
1229.2
974.2
Black
5
0
0
5
0.0
0.0
-425.0
1246.1
821.1
Rapid
All
5
2
0
3
2.0
40.0
-85.0
1155.0
1070.0
White
2
0
0
2
0.0
0.0
-425.0
1148.0
723.0
Black
3
2
0
1
2.0
66.7
141.7
1159.7
1301.4
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
15
3
0
12
3.0
20.0
-255.0
1210.1
955.1
White
7
1
0
6
1.0
14.3
-303.6
1206.0
902.4
Black
8
2
0
6
2.0
25.0
-212.5
1213.7
1001.2
Standard
All
10
1
0
9
1.0
10.0
-340.0
1237.7
897.7
White
5
1
0
4
1.0
20.0
-255.0
1229.2
974.2
Black
5
0
0
5
0.0
0.0
-425.0
1246.1
821.1
Rapid
All
5
2
0
3
2.0
40.0
-85.0
1155.0
1070.0
White
2
0
0
2
0.0
0.0
-425.0
1148.0
723.0
Black
3
2
0
1
2.0
66.7
141.7
1159.7
1301.4
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
106087648
Masoka, O (Oyama)
2
0.0
0
0
2
0.0
1140.3
-425.0
715.3
View list
2
2030301004
Molapisi, C (Confidence)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
3
1050140904
Martin, S (Siyamthanda)
1
1.0
1
0
0
100.0
1080.7
425.0
1505.7
View list
4
1060135611
Isaacs, C (Charlton)
1
1.0
1
0
0
100.0
1080.7
425.0
1505.7
View list
5
1090140912
Groener, B (Begravian)
1
0.0
0
0
1
0.0
1080.7
-425.0
655.7
View list
6
2050134002
Booysen, T (Tamia)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
7
1050301011
Xola, B (Bukho)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
8
106077397
Tshikosi, M (Mashudu)
1
0.0
0
0
1
0.0
1080.7
-425.0
655.7
View list
9
1060154781
Saunders, E (Ethan)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
10
1030301007
Pulumani, T (Thandolwethu)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
11
174029051
Oosthuizen, L (Leon)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
12
203088637
Ngidi, V (Victoria)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
13
185026999
Ndyova, T (Thanduxolo)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
14
1070134135
Munemo, T (Tadiwa)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list