PLAYER PAGE

Personal

Roos, E (Ewan)

Chess SA id

1130134053

FIDE id

?

Date of birth

2013-06-07 (U14)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-08-15

Personal details last changed

1900-01-01

Junior GPX Games

34

Junior GPX Points

1262.8

Item Main Standard Rapid Blitz
Rating 1385.9 1377 1200 1200
Raw rating 1356.6 1345 1200 1200
Weighted rating 1385.9 1377 1200 1200
Weighted performance 1219.1 1218.2 0 0
Floor 979.5 976.8 700 700
K-factor 32 32 36 36
Min/Max rating change allowed 132.7 134.9 165.8 165.8
Highest rating 1495
2024-09-01
1490.7
2024-09-01
1200
2018-10-01
1200
2018-10-01
Highest raw rating 1479.5
2024-10-01
1476.8
2024-10-01
1200
2024-02-01
1200
2024-02-01
Highest weighted rating 1385.3
2025-09-01
1376.7
2025-09-01
1200
2018-10-01
1200
2018-10-01
Highest weighted performance 1495
2024-09-01
1490.7
2024-09-01
1200
2024-02-01
1200
2024-02-01

Prediction
Item Main Standard Rapid Blitz
Rating change 0.1 -0.2 0 0
New rating 1386 1376.9 1200 1200
Analysis
Rating 1385.9 1377 1200 1200
Raw rating 1356.6 1345 1200 1200
Weighted rating 1385.9 1377 1200
Weighted performance 1219.1 1218.2 0
K-factor 32 32 36 36
Floor 979.5 976.8 700 700
Max/Min rating change allowed 132.7 134.9 165.8 165.8
Games 0 0 0 0
Score 0 0 0 0
Expected score 0 0 0 0
Score-Expected 0 0 0 0
Temp raw +/- 0 0 0 0
Final raw +/- 0 0 0 0
New raw rating 1356.6 1345 1200 1200
New weighted rating 1386 1376.9 1200 1200
New weighted performance 1218.7 1217.8 0 0
Temp new rating 1386 1376.9 1200 1200
Temp new rating +/- 0.1 -0.2 0 0
Final new rating +/- 0.1 -0.2 0 0
New rating 1386 1376.9 1200 1200
New K-factor 32 32 36 36
New floor 979.5 976.8 700 700

Item Main Standard Rapid Blitz
0 0 0 0
24 24 0 0
57 57 0 0
32 32 0 0
36 36 0 0
26 26 0 0
History 175 175 0 0

Games since
Main
85
Standard
85
Rapid
0
Blitz
0
Gender Male
Age group U14
Region Tshwane (GTP)
Province Gauteng (GT)
Main
RSA Province Region
Overall 2323 811 290
Male 1898 659 228
U14 383 123 41
U14 Male 283 91 28
Standard
RSA Province Region
Overall 2291 851 325
Male 1862 692 256
U14 389 135 48
U14 Male 288 99 32
Rapid
RSA Province Region
Overall -1 -1 -1
Male -1 -1 -1
U14 -1 -1 -1
U14 Male -1 -1 -1
Blitz
RSA Province Region
Overall -1 -1 -1
Male -1 -1 -1
U14 -1 -1 -1
U14 Male -1 -1 -1

Games Score % Dp AvgOpp Performance
Main 0 0 0 0 0 0
Standard 0 0 0 0 0 0
Rapid 0 0 0 0 0 0
Blitz 0 0 0 0 0 0
Games Score % Dp AvgOpp Performance
Main 24 10 41.67 -70.8 1341.4 1270.5
Standard 24 10 41.67 -70.8 1341.4 1270.5
Rapid 0 0 0 0 0 0
Blitz 0 0 0 0 0 0
History
Games Score % Dp AvgOpp Performance
Main 175 102 58.29 70.4 1246.1 1316.5
Standard 175 102 58.29 70.4 1246.1 1316.5
Rapid 0 0 0 0 0 0
Blitz 0 0 0 0 0 0

Date Main Standard Rapid Blitz
2025-09-30 1356.6 1345 1200 1200
2025-09-01 1356.6 1345 1200 1200
2025-08-01 1383.9 1375.6 1200 1200
2025-07-01 1380.2 1371.9 1200 1200
2025-06-01 1376.4 1367.8 1200 1200
2025-05-01 1376.4 1363.5 1200 1200
2025-04-01 1376.4 1360.5 1200 1200
2025-03-01 1385.8 1367.8 1200 1200
2025-02-01 1456.2 1451.2 1200 1200
2025-01-01 1456.2 1451.2 1200 1200
2024-12-01 1464.6 1458.6 1200 1200
2024-11-01 1464.6 1458.6 1200 1200
2024-10-01 1479.5 1476.8 1200 1200
2024-09-01 1437.6 1432.3 1200 1200
2024-08-01 1401.9 1397.3 1200 1200
2024-07-01 1401.9 1397.3 1200 1200
2024-06-01 1358 1353.4 1200 1200
2024-08-01 1291.6 1289.8 1200 1200
2024-04-01 1235.4 1227.5 1200 1200
2024-03-01 1235.4 1227.5 1200 1200
2024-02-01 1232.7 1222.1 1200 1200
2024-01-01 1207 1196.5 1200 1200
2023-12-01 1207 1196.5 1200 1200
2023-11-01 1207 1196.5 1200 1200

Comming soon.

Tournaments

No tournaments found.
# Tournament Start End Type Host Rounds Games Score Cfr Analysis
# Tournament Start End Type Host Rounds Games Score Cfr Analysis
1 2025 Tshwane South School District CLOSED League Championship (U13A) 2025-08-15 2025-08-15 Standard Tshwane (GTP) 5 5 2 Yes Analysis
2 Lubowski Open 2025 (D2) 2025-03-21 2025-03-22 Standard Tshwane (GTP) 5 5 3.5 Yes Analysis
3 2025 Chris Greyling Open Chess Tournament (C) 2025-03-15 2025-03-15 Standard Tshwane (GTP) 5 5 1.5 Yes Analysis
4 2025 KSNG Open (C) 2025-02-22 2025-02-22 Standard Tshwane (GTP) 5 5 2 Yes Analysis
5 Constantiapark Open 2025 (C) 2025-02-15 2025-02-15 Standard Tshwane (GTP) 5 4 1 Yes Analysis
Last 500 tournaments since 01 January 2018
# Tournament Start End Type Host Rounds Games Score Cfr Analysis
1 2025 Tshwane South School District CLOSED League Championship (U13A) 2025-08-15 2025-08-15 Standard Tshwane (GTP) 5 5 2 Yes Analysis
2 Lubowski Open 2025 (D2) 2025-03-21 2025-03-22 Standard Tshwane (GTP) 5 5 3.5 Yes Analysis
3 2025 Chris Greyling Open Chess Tournament (C) 2025-03-15 2025-03-15 Standard Tshwane (GTP) 5 5 1.5 Yes Analysis
4 2025 KSNG Open (C) 2025-02-22 2025-02-22 Standard Tshwane (GTP) 5 5 2 Yes Analysis
5 Constantiapark Open 2025 (C) 2025-02-15 2025-02-15 Standard Tshwane (GTP) 5 4 1 Yes Analysis
6 Gauteng Inter-Region at UJ 2024 (U12 Open) 2024-12-07 2024-12-08 Standard Johannesburg Metro (GJM) 5 5 3 Yes Analysis
7 Gauteng Top Schools 2024 (U11 Open) 2024-10-04 2024-10-04 Standard Ekurhuleni (GE) 5 5 3 Yes Analysis
8 2024 Etienne Lewis (U12) 2024-08-30 2024-09-01 Standard Tshwane (GTP) 7 7 5.5 Yes Analysis
9 Gauteng Schools Individuals Finals 2024 (U11 Boys) 2024-08-16 2024-08-16 Standard Ekurhuleni (GE) 5 5 3 Yes Analysis
10 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U11A) 2024-08-03 2024-08-03 Standard Tshwane (GTP) 5 5 4 Yes Analysis
11 2024 Elise Steenkamp Open Chess Tournament (Rooks) 2024-06-15 2024-06-15 Standard Tshwane (GTP) 5 5 4 Yes Analysis
12 2024 Tshwane South School District CLOSED Individual Championships (U11 Mixed) 2024-05-11 2024-05-11 Standard Tshwane (GTP) 5 5 4 Yes Analysis
13 2024 KSNG CHess Academy Open Tournament (D2) 2024-04-06 2024-04-06 Standard Tshwane (GTP) 5 5 4 Yes Analysis
14 2024 Tshwane Chess AHS Open Chess Tournament (C1) 2024-02-24 2024-02-24 Standard Tshwane (GTP) 5 5 2 Yes Analysis
15 2024 Tshwane Chess OPEN Registration Tournament (C2) 2024-01-27 2024-01-27 Standard Tshwane (GTP) 5 5 1 Yes Analysis
16 2024 Gauteng Inter-Region Chess Championship (U12C) 2024-01-13 2024-01-14 Standard Tshwane (GTP) 5 5 4.5 Yes Analysis
17 Lardies Open Tournament 2023 (C) 2023-10-28 2023-10-28 Standard Tshwane (GTP) 5 4 1 Yes Analysis
18 2023 Etienne Lewis Closed Tournament (U12) 2023-08-25 2023-08-27 Standard Tshwane (GTP) 7 5 3.5 Yes Analysis
19 2023 Tshwane South School District CLOSED League Championship (U11) 2023-07-29 2023-07-29 Standard Tshwane (GTP) 5 4 2 Yes Analysis
20 2023 Lubowski Open Tournament (C) 2023-06-24 2023-06-25 Standard Tshwane (GTP) 5 4 0 Yes Analysis
21 2023 Tshwane South School District CLOSED Individual Championships (U11 Open) 2023-04-22 2023-04-22 Standard Tshwane (GTP) 5 5 3 Yes Analysis
22 Chris Greyling Open Tournament 2023 (C) 2023-03-21 2023-03-21 Standard Tshwane (GTP) 5 5 1.5 Yes Analysis
23 Tuks Junior Developmental Chess Tournament 2023 (Blue) 2023-03-18 2023-03-18 Standard Tshwane (GTP) 5 5 2 Yes Analysis
24 2022 Gauteng Schools Team Championships (U9 Open) 2022-08-27 2022-08-27 Standard Tshwane (GTP) 5 5 3 Yes Analysis
25 D4 Play Offs 2022 (U9) 2022-07-30 2022-07-30 Standard Tshwane (GTP) 5 5 5 Yes Analysis
26 2022 Menlo Open Tournament (D) 2022-07-23 2022-07-23 Standard Tshwane (GTP) 5 5 3 Yes Analysis
27 Tuks Junior Chess Club Developmental Tournament 2022 (Red) 2022-06-17 2022-06-17 Standard Tshwane (GTP) 5 5 3 Yes Analysis
28 2022 Lubowski Open Tournament (D) 2022-04-09 2022-04-10 Standard Tshwane (GTP) 5 5 2 Yes Analysis
29 2022 Chris Greyling Open (D) 2022-03-12 2022-03-12 Standard Tshwane (GTP) 5 5 4 Yes Analysis
30 2022 Gauteng Interregion (U10 Open) 2022-02-26 2022-02-26 Standard Tshwane (GTP) 5 5 2 Yes Analysis
31 2022 Tshwane Chess Open Registration Tournament (D1) 2022-01-29 2022-01-29 Standard Tshwane (GTP) 5 1 1 Yes Analysis
32 2021 Lardies Ope (E) 2021-10-30 2021-10-30 Standard Tshwane (GTP) 5 5 4 Yes Analysis
33 2021 Etienne Lewis Closed Trials (U10 Open) 2021-09-24 2021-09-26 Standard Nelson Mandela Bay (ENM) 7 6 3 Yes Analysis
34 2021 Alekhine Open (E) 2021-08-14 2021-08-15 Standard Tshwane (GTP) 5 5 4 Yes Analysis
35 2021 Chris Greyling Open Tournament (E) 2021-05-08 2021-05-08 Standard Tshwane (GTP) 5 5 4 Yes Analysis
36 2021 Blou Bul Tournament (E) 2021-04-10 2021-04-10 Standard Mangaung (FMB) 5 5 3 Yes Analysis

Top 3 Streaks

# Games Start End
1 7 Tournament
D4 Play Offs 2022
Tournament
2022 Gauteng Schools Team Championships
date
2022-07-30
rnd
1
type
Standard
result
1
date
2022-08-27
rnd
2
type
Standard
result
1
Opponent
Ottermann, E (Erik)
Opponent
Opperman, N (Naude)
2 5 Tournament
Gauteng Schools Individuals Finals 2024
Tournament
2024 Etienne Lewis
date
2024-08-16
rnd
5
type
Standard
result
1
date
2024-08-31
rnd
4
type
Standard
result
1
Opponent
Pieters, I (Imrich)
Opponent
Tan, H (Herman Qiyuan)
3 5 Tournament
D4 Tshwane South District Schools Teams Chess Tournament 2024
Tournament
Gauteng Schools Individuals Finals 2024
date
2024-08-03
rnd
3
type
Standard
result
1
date
2024-08-16
rnd
2
type
Standard
result
1
Opponent
Van Reenen, C (Connor)
Opponent
Mampana, N (Ntokozo)
# Games Start End
1 7 Tournament
D4 Play Offs 2022
Tournament
2022 Gauteng Schools Team Championships
date
2022-07-30
rnd
1
type
Standard
result
1
date
2022-08-27
rnd
2
type
Standard
result
1
Opponent
Ottermann, E (Erik)
Opponent
Opperman, N (Naude)
2 5 Tournament
Gauteng Schools Individuals Finals 2024
Tournament
2024 Etienne Lewis
date
2024-08-16
rnd
5
type
Standard
result
1
date
2024-08-31
rnd
4
type
Standard
result
1
Opponent
Pieters, I (Imrich)
Opponent
Tan, H (Herman Qiyuan)
3 5 Tournament
D4 Tshwane South District Schools Teams Chess Tournament 2024
Tournament
Gauteng Schools Individuals Finals 2024
date
2024-08-03
rnd
3
type
Standard
result
1
date
2024-08-16
rnd
2
type
Standard
result
1
Opponent
Van Reenen, C (Connor)
Opponent
Mampana, N (Ntokozo)
No games found.
# Games Start End
No games found.
# Games Start End
# Games Start End
1 7 Tournament
D4 Play Offs 2022
Tournament
2022 Gauteng Schools Team Championships
date
2022-07-30
rnd
1
type
Standard
result
1
date
2022-08-27
rnd
2
type
Standard
result
1
Opponent
Ottermann, E (Erik)
Opponent
Opperman, N (Naude)
2 5 Tournament
D4 Tshwane South District Schools Teams Chess Tournament 2024
Tournament
Gauteng Schools Individuals Finals 2024
date
2024-08-03
rnd
3
type
Standard
result
1
date
2024-08-16
rnd
2
type
Standard
result
1
Opponent
Van Reenen, C (Connor)
Opponent
Mampana, N (Ntokozo)
3 4 Tournament
2024 Etienne Lewis
Tournament
Gauteng Top Schools 2024
date
2024-09-01
rnd
6
type
Standard
result
1
date
2024-10-04
rnd
2
type
Standard
result
1
Opponent
Boshoff, M (Milah)
Opponent
Sibanda, B (Blessing)
# Games Start End
1 7 Tournament
D4 Play Offs 2022
Tournament
2022 Gauteng Schools Team Championships
date
2022-07-30
rnd
1
type
Standard
result
1
date
2022-08-27
rnd
2
type
Standard
result
1
Opponent
Ottermann, E (Erik)
Opponent
Opperman, N (Naude)
2 5 Tournament
D4 Tshwane South District Schools Teams Chess Tournament 2024
Tournament
Gauteng Schools Individuals Finals 2024
date
2024-08-03
rnd
3
type
Standard
result
1
date
2024-08-16
rnd
2
type
Standard
result
1
Opponent
Van Reenen, C (Connor)
Opponent
Mampana, N (Ntokozo)
3 4 Tournament
2024 Etienne Lewis
Tournament
Gauteng Top Schools 2024
date
2024-09-01
rnd
6
type
Standard
result
1
date
2024-10-04
rnd
2
type
Standard
result
1
Opponent
Boshoff, M (Milah)
Opponent
Sibanda, B (Blessing)
No games found.
# Games Start End
No games found.
# Games Start End

Top 10 opponents most often played

# Opponent Main Standard Rapid Blitz
Gms Score Dp Gms Score Dp Gms Score Dp Gms Score Dp
Aor Prat Aor Prat Aor Prat Aor Prat
1 Botha ,L (Logan) 5 3 85 5 3 85 0 0 0 0 0 0
1237.2 1322.2 1236.1 1322.2 0 0 0 0
2 Buchner ,E (Emil) 4 3 212.5 4 3 212.5 0 0 0 0 0 0
1187.5 1400 1172.9 1400 0 0 0 0
3 Padayachy ,V (Vidya) 4 2 0 4 2 0 0 0 0 0 0 0
1156.9 1156.9 1137.4 1156.9 0 0 0 0
4 De Bruin ,H (Hanno) 3 3 425 3 3 425 0 0 0 0 0 0
1164.2 1589.2 1155.5 1589.2 0 0 0 0
5 Ottermann ,E (Erik) 2 1 0 2 1 0 0 0 0 0 0 0
1150.2 1150.2 1157.4 1150.2 0 0 0 0
6 Kruger ,B (Brenden) 2 1.5 212.5 2 1.5 212.5 0 0 0 0 0 0
1137.2 1349.7 1139.8 1349.7 0 0 0 0
7 Botha ,L (Lincke) 2 2 425 2 2 425 0 0 0 0 0 0
1192.1 1617.1 1189.9 1617.1 0 0 0 0
8 Maponya ,W (Warona) 2 0 -425 2 0 -425 0 0 0 0 0 0
1456.1 1031.1 1451.8 1031.1 0 0 0 0
9 Mann ,I (Iowan) 2 0 -425 2 0 -425 0 0 0 0 0 0
1587.9 1162.9 1585.5 1162.9 0 0 0 0
10 Ndebele ,AT (Akhumzi Thandolwenkosi) 2 0 -425 2 0 -425 0 0 0 0 0 0
1214.2 789.2 1216.3 789.2 0 0 0 0

Norms

No norms achieved.
# Norm Tournament Start End Rounds Games Score Details
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