Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Posthumus, T (Tristann)
Dob:
2009/07/20 (U16)
Gender:
Male
Chess SA id:
1090154889
FIDE id:
Region:
Ekurhuleni (GE)
Citizen:
RSA
Title(s):
Last active:
2024/04/13 (33 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
1313.7
Curent Weighted rating
1253.9
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1313.7
Current floor (min rating allowed)
813.7
Current highest rating achieved
1313.7
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)
±141.0
Current Raw change used (final)
0.0
Projected new Raw rating
1313.7
Projected new Weighed rating
1260.1
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1313.7
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1313.7
Projected new floor
813.7
Projected new K-facor
36
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
1275.2
Curent Weighted rating
1218.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1275.2
Current floor (min rating allowed)
775.2
Current highest rating achieved
1275.2
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)
±149.0
Current Raw change used (final)
0.0
Projected new Raw rating
1275.2
Projected new Weighed rating
1223.7
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1275.2
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1275.2
Projected new floor
775.2
Projected new K-facor
36
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
1299.0
Curent Weighted rating
1270.7
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1299.0
Current floor (min rating allowed)
799.0
Current highest rating achieved
1299.0
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)
±144.0
Current Raw change used (final)
0.0
Projected new Raw rating
1299.0
Projected new Weighed rating
1274.7
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1299.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1299.0
Projected new floor
799.0
Projected new K-facor
36
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)
799.0
Current highest rating achieved
1200.0
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
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
1200.0
Projected new floor
799.0
Projected new K-facor
36
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
2
Westwood Open 2024 (A)
2024/04/13
2024/04/13
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1284.7
1224.1
Analysis
1
Benoni High Schools Cluster Individuals 2024 (U15 Boys)
2024/03/16
2024/03/16
Ekurhuleni (GE)
Rapid
45
0.74
5
5
3.0
1265.0
1288.6
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
4
Westwood Open 2024 (A)
2024/04/13
2024/04/13
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1284.7
1224.1
Analysis
3
Benoni High Schools Cluster Individuals 2024 (U15 Boys)
2024/03/16
2024/03/16
Ekurhuleni (GE)
Rapid
45
0.74
5
5
3.0
1265.0
1288.6
Analysis
2
Ekurhuleni Chess Spring Tournament 2023 (D)
2023/09/23
2023/09/23
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1252.7
1200.0
Analysis
1
Benoni Cluster High School League 2023 (U15 Open)
2023/05/06
2023/05/06
Ekurhuleni (GE)
Rapid
30
0.60
5
5
5.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
10
6
0
4
6.0
60.0
85.0
1335.3
1420.3
White
5
3
0
2
3.0
60.0
85.0
1303.2
1388.2
Black
5
3
0
2
3.0
60.0
85.0
1367.4
1452.4
Standard
All
5
3
0
2
3.0
60.0
85.0
1373.1
1458.1
White
3
2
0
1
2.0
66.7
141.7
1268.0
1409.7
Black
2
1
0
1
1.0
50.0
0.0
1530.7
1530.7
Rapid
All
5
3
0
2
3.0
60.0
85.0
1297.5
1382.5
White
2
1
0
1
1.0
50.0
0.0
1356.0
1356.0
Black
3
2
0
1
2.0
66.7
141.7
1258.5
1400.2
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
14
0
6
14.0
70.0
170.0
1273.9
1443.9
White
10
7
0
3
7.0
70.0
170.0
1241.2
1411.2
Black
10
7
0
3
7.0
70.0
170.0
1306.7
1476.7
Standard
All
10
6
0
4
6.0
60.0
85.0
1300.7
1385.7
White
5
3
0
2
3.0
60.0
85.0
1223.2
1308.2
Black
5
3
0
2
3.0
60.0
85.0
1378.2
1463.2
Rapid
All
10
8
0
2
8.0
80.0
255.0
1247.2
1502.2
White
5
4
0
1
4.0
80.0
255.0
1259.2
1514.2
Black
5
4
0
1
4.0
80.0
255.0
1235.1
1490.1
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
1090139565
Myburgh, X (Xuan)
2
2.0
2
0
0
100.0
1232.5
425.0
1657.5
View list
2
206088651
Bothma, L (Liandri)
1
1.0
1
0
0
100.0
1284.7
425.0
1709.7
View list
3
2100097359
Bothma, J (Jaculene)
1
1.0
1
0
0
100.0
1284.7
425.0
1709.7
View list
4
1100301182
Coetser, W (Wian)
1
1.0
1
0
0
100.0
1265.0
425.0
1690.0
View list
5
1120152983
Chen, Y (Yuqi)
1
1.0
1
0
0
100.0
1252.7
425.0
1677.7
View list
6
1120112257
Laeke, K (Kaleb)
1
1.0
1
0
0
100.0
1252.7
425.0
1677.7
View list
7
1090154876
Kleynhans, R (Ruan)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
8
1090301187
Khosa, N (Nkanelo)
1
1.0
1
0
0
100.0
1265.0
425.0
1690.0
View list
9
1120151759
Voogt, A (Arno)
1
1.0
1
0
0
100.0
1252.7
425.0
1677.7
View list
10
1100157191
Sithole, B (Brendel)
1
1.0
1
0
0
100.0
1284.7
425.0
1709.7
View list
11
1080154893
Seopela, P (Phetolo)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
12
1080154882
Moll, T (Tian)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
13
2090154863
Allers, C (Christine)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
14
107088004
Zingoni, N (Ngaakudzwe)
1
0.0
0
0
1
0.0
1284.7
-425.0
859.7
View list
15
1100118105
Maharaj, M (Mihiir)
1
0.0
0
0
1
0.0
1265.0
-425.0
840.0
View list
16
209092675
Ramlall, S (Sanjana)
1
0.0
0
0
1
0.0
1284.7
-425.0
859.7
View list
17
1090135387
Del Grosso, G (Gianluca Gabriele)
1
0.0
0
0
1
0.0
1265.0
-425.0
840.0
View list
18
1060141960
Chen, X (Xi)
1
0.0
0
0
1
0.0
1252.7
-425.0
827.7
View list
19
2110151735
Ambrose, I (Isabella)
1
0.0
0
0
1
0.0
1252.7
-425.0
827.7
View list