Surname or Chess SA id..
Chess SA Region AOC Mzansi 2026

PLAYER PAGE

Rico Roos

101032541
Overberg (WOS)
Personal
Main rating
Rating 1365.1
K-factor 36
Floor 865.1
Highest 1365.1 (2026-08-01)
Min/Max +/- allowed 131
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1278.1
Final +/- 0
New Rating
()
Rating 1365.1
K-factor 36
Floor 865.1
Highest 1365.1 (2026-08-01)
Min/Max +/- allowed 131.1
Standard rating
Rating 1320.5
K-factor 36
Floor 820.5
Highest 1320.5 (2026-08-01)
Min/Max +/- allowed 139.7
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 708.1
Final +/- 0
New Rating
()
Rating 1320.5
K-factor 36
Floor 820.5
Highest 1320.5 (2026-08-01)
Min/Max +/- allowed 139.7
Rapid rating
Rating 1290.3
K-factor 36
Floor 790.3
Highest 1290.3 (2026-04-01)
Min/Max +/- allowed 145.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1290.3
K-factor 36
Floor 790.3
Highest 1290.3 (2026-04-01)
Min/Max +/- allowed 145.8
Blitz rating
Rating 1070.6
K-factor 40
Floor 625
Highest 1200 (2024-03-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1070.6
K-factor 40
Floor 625
Highest 1200 (2024-03-01)
Min/Max +/- allowed 165.8
Rating Graph
Tournaments
No tournaments found.
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 South African Open Championship 2026 (Intermediate) Classical 2026-06-28 2026-07-05 Cape Town (WCT) 9 1260.3 9 6 1540.6 104.8 Details
2 Hermanus Chess Club Open 2026 (Intermediate) Rapid 2026-04-18 2026-04-18 Overberg (WOS) 7 1226 7 5 1485.5 35.5 Details
3 Hermanus Chess Club Open 2026 (Blitz) Blitz 2026-04-17 2026-04-17 Overberg (WOS) 9 1226 9 2 1220.6 -1.2 Details
4 Cape Winelands Open Rapid 2026 (Intermediate) Rapid 2026-03-14 2026-03-14 Cape Winelands (WCW) 6 1189.1 6 4.5 1498.1 36.9 Details
5 Western Cape Top Schools 2019 (U18 Mix) Standard 2019-08-31 2019-09-01 Cape Winelands (WCW) 5 1195.4 4 1 1153.7 -3.3 Details
6 Overberg Top Schools 2019 (U18) Standard 2019-07-20 2019-07-20 Overberg (WOS) 3 1157.2 3 3 1531 21.2 Details
7 Western Cape Schools Individuals 2019 (U18 Boys) Standard 2019-05-04 2019-05-05 Eden (WEG) 6 1192.5 6 2 1057.4 -19.4 Details
8 Overberg School Chess Close Champs 2019 (U18 Boys) Standard 2019-03-08 2019-03-09 Overberg (WOS) 6 1148.3 6 5 1358.4 24.7 Details
9 2018 Wild Card Chess Championships (U18 Open) Classical 2018-12-21 2018-12-24 4 Knights (4K) 7 1219.2 7 0.5 856 -59 Details
10 South African Junior Team Championships 2018 (U18C) Classical 2018-12-16 2018-12-20 4 Knights (4K) 7 1219.2 7 5 1341.7 19.4 Details
11 Western Cape Top Schools 2018 (U19 Mix) Standard 2018-08-25 2018-08-26 Overberg (WOS) 5 1245.2 5 2 1083.7 -14.3 Details
12 Overberg 3rd Trial 2018 (U18+Open) Standard 2018-05-05 2018-05-05 Overberg (WOS) 5 1182.4 4 3 1375.8 15.1 Details
13 Overberg 2nd Trial 2018 (U18) Standard 2018-05-05 2018-05-05 Overberg (WOS) 5 1182.4 4 3 1149.8 -2.2 Details
14 Western Cape Schools Individuals 2018 (U18 Boys) Standard 2018-05-19 2018-05-20 Overberg (WOS) 6 1182.4 6 3.5 1265.6 9.8 Details
15 Overberg Chess 1st Trial 2018 (A) Standard 2018-04-14 2018-04-14 Overberg (WOS) 5 1151.9 5 4 1282.5 15.3 Details
16 Overberg Schools Closed 2018 (U18 Boys) Standard 2018-03-23 2018-03-23 Overberg (WOS) 6 1125 6 4 1236.9 13.1 Details
17 Ocf Open Bredasdorp 2017 Standard 2017-09-02 2017-09-02 Overberg (WOS) 5 1102 5 5 1074 7.1 Details
18 Western Cape Top Schools 2017 (U18 Mix) Standard 2017-08-26 2017-08-27 Western Cape (WC) 5 1082 5 2.5 1203 9.5 Details
19 Laerskool Kleinmond Open Chess Tournament 2017 (Open) Standard 2017-06-03 2017-06-03 Overberg (WOS) 5 1088 5 4 1003 13.8 Details
20 Western Cape Championship 2017 (U18 Boys) Standard 2017-05-13 2017-05-14 Western Province (WP) 6 1088 6 2 1061 0 Details
21 Overberg Chess Fed Std1 2017 (Open) Standard 2017-04-22 2017-04-22 Overberg (WOS) 5 1110 4 2 906 6 Details
22 Overberg Rapid 2 2017 (Open Under 16 - Open) Rapid 2017-03-25 2017-03-25 Overberg (WOS) 5 793 5 2 670 -10.3 Details
23 Overberg Trial 1 2017 (Under 18+20) Rapid 2017-02-18 2017-02-18 Overberg (WOS) 5 793 5 4 660 21.9 Details
24 South African Junior Wildcard Championships 2016 (U16 Boys) Classical 2016-12-20 2016-12-23 Tshwane (GTP) 7 972 6 3.5 1182 35.6 Details
25 South African Junior Team Championships 2016 (U16 D) Classical 2016-12-16 2016-12-19 Tshwane (GTP) 7 972 7 6.5 1274 53.6 Details
26 Overberg C4C Open 2016 (Open) Standard 2016-10-29 2016-10-29 Overberg (WOS) 5 938 5 3 1076 22.4 Details
27 Overberg Chess Trials 2016 (U16-U20) Standard 2016-09-03 2016-09-03 Overberg (WOS) 5 913 5 4 1074 43.5 Details
28 Wc Top Schools Chess Trials 2016 (U19 Mix) Standard 2016-08-27 2016-08-28 South Western Districts (SWD) 5 931 5 2 868 25.6 Details
29 Walker Bay Open 2016 (C) Standard 2016-07-24 2016-07-24 Overberg (WOS) 5 844 5 4.5 1259 44.5 Details
30 Western Cape Schools Chess Individuals 2016 (U15 Boys) Standard 2016-04-30 2016-05-01 Western Province (WP) 7 0 7 3.5 920 58.1 Details
31 Wc Top Schools 2015 (U15 Mix) Standard 2015-09-05 2015-09-06 Western Province (WP) 5 0 5 1 922 16.6 Details
32 Western Cape Schools Chess Championships 2015 (U15 Boys) Standard 2015-05-17 2015-05-17 Overberg (WOS) 6 0 5 0 246 0 Details
33 Worc. Knock-Out 2013 - U 13 Boys Rapid 2013-10-19 2013-10-19 Boland (WB) 5 770 5 3 951 9.4 Details
34 Rhenish Chess Tournament 2012 U 12 Rapid 2012-06-16 2012-06-16 Boland (WB) 7 0 7 2 629 -18.1 Details
Game statistics ( )
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics ()
Games 31
Wins 17
Draws 1
Losses 13
White 16
Black 15
White wins 10
Black wins 7
Score 17.5
Percent 56.5
Dp 54.8
AOR 1372.2
Performance 1427
Game statistics (History)
Games 94
Wins 48
Draws 11
Losses 35
White 48
Black 46
White wins 24
Black wins 24
Score 53.5
Percent 56.9
Dp 58.8
AOR 1220.7
Performance 1279.5
Rankings (Main)
National
Overall 4345
Gender 3622
Age group 1119
Gender/Age 1035
Provincial
Overall 1308
Gender 1036
Age group 293
Gender/Age 270
Regional
Overall 79
Gender 58
Age group 8
Gender/Age 8
Rankings (Standard)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Rankings (Rapid)
National
Overall 2309
Gender 1890
Age group 370
Gender/Age 351
Provincial
Overall 937
Gender 743
Age group 145
Gender/Age 136
Regional
Overall 115
Gender 80
Age group 9
Gender/Age 9
Rankings (Blitz)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 31
Score 17.5
Percent 56.5
Aor 1372.2
Dp 54.8
Prat 1427
Performance (12 months)
Games 31
Score 17.5
Percent 56.5
Aor 1372.2
Dp 54.8
Prat 1427
Performance (History)
Games 94
Score 53.5
Percent 56.9
Aor 1220.7
Dp 58.8
Prat 1279.5
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Matthysen, M (Monwill) 3 2 1 Overberg Chess 1st Trial 2018 (A) Overberg School Chess Close Champs 2019 (U18 Boys) Details
Overall 2 Lee, J (Joel) 2 1 1 Western Cape Top Schools 2018 (U19 Mix) Western Cape Top Schools 2019 (U18 Mix) Details
Overall 3 Mehnert, G (Geneve) 2 1 1 Overberg 2nd Trial 2018 (U18) Overberg 3rd Trial 2018 (U18+Open) Details
Standard 1 Matthysen, M (Monwill) 3 2 1 Overberg Chess 1st Trial 2018 (A) Overberg School Chess Close Champs 2019 (U18 Boys) Details
Standard 2 Mehnert, G (Geneve) 2 1 1 Overberg 2nd Trial 2018 (U18) Overberg 3rd Trial 2018 (U18+Open) Details
Standard 3 Lee, J (Joel) 2 1 1 Western Cape Top Schools 2018 (U19 Mix) Western Cape Top Schools 2019 (U18 Mix) Details