PLAYER PAGE
Benjamin Roos
1160148677Tshwane (GTP)Personal
Main rating
| Rating | 1394.1 |
| K-factor | 32 |
| Floor | 953.5 |
| Highest | 1469.4 (2024-08-01) |
| Min/Max +/- allowed | 113 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1214.7 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1394.1 |
| K-factor | 32 |
| Floor | 953.5 |
| Highest | 1469.4 (2024-08-01) |
| Min/Max +/- allowed | 113 |
Standard rating
| Rating | 1383.8 |
| K-factor | 32 |
| Floor | 949.5 |
| Highest | 1465.4 (2024-08-01) |
| Min/Max +/- allowed | 113.6 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1214.7 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1383.8 |
| K-factor | 32 |
| Floor | 949.5 |
| Highest | 1465.4 (2024-08-01) |
| Min/Max +/- allowed | 113.6 |
Rapid rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| 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 | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| 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 | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | 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 | 2025 Tshwane South School District CLOSED League Championship (U9A) | Standard | 2025-08-15 | 2025-08-15 | Tshwane (GTP) | 5 | 1395.5 | 5 | 2 | 1340.1 | 0 | Details |
| 2 | Constantiapark Open 2025 (U10) | Standard | 2025-02-15 | 2025-02-15 | Tshwane (GTP) | 5 | 1405.4 | 5 | 3 | 1347.6 | 0 | Details |
| 3 | Gauteng Inter-Region at UJ 2024 (U10 Open) | Standard | 2024-12-07 | 2024-12-08 | Johannesburg Metro (GJM) | 5 | 1411.4 | 5 | 2 | 1384 | 0 | Details |
| 4 | 2024 Etienne Lewis (U10) | Standard | 2024-08-30 | 2024-09-01 | Tshwane (GTP) | 7 | 1453.5 | 6 | 2.5 | 1252.6 | 0 | Details |
| 5 | D4 Tshwane South District Schools Teams Chess Tournament 2024 (U9A) | Standard | 2024-08-03 | 2024-08-03 | Tshwane (GTP) | 5 | 1415 | 5 | 4 | 1551.5 | 0 | Details |
| 6 | 2024 Elise Steenkamp Open Chess Tournament (Bishops) | Standard | 2024-06-15 | 2024-06-15 | Tshwane (GTP) | 5 | 1326.9 | 5 | 4.5 | 1638.1 | 0 | Details |
| 7 | 2024 KSNG CHess Academy Open Tournament (E) | Standard | 2024-04-06 | 2024-04-06 | Tshwane (GTP) | 5 | 1306.6 | 5 | 4 | 1428 | 0 | Details |
| 8 | 2024 Tshwane Chess AHS Open Chess Tournament (E) | Standard | 2024-02-24 | 2024-02-24 | Tshwane (GTP) | 5 | 1306.6 | 5 | 3 | 1297.3 | 0 | Details |
| 9 | 2024 Tshwane Chess OPEN Registration Tournament (E) | Standard | 2024-01-27 | 2024-01-27 | Tshwane (GTP) | 5 | 1281.8 | 5 | 3.5 | 1352.8 | 0 | Details |
| 10 | 2024 Gauteng Inter-Region Chess Championship (U8) | Standard | 2024-01-13 | 2024-01-14 | Tshwane (GTP) | 5 | 1281.8 | 5 | 3 | 1330.8 | 0 | Details |
| 11 | Lardies Open Tournament 2023 (F) | Standard | 2023-10-28 | 2023-10-28 | Tshwane (GTP) | 5 | 1267.6 | 5 | 3 | 1324.8 | 0 | Details |
| 12 | 2023 Etienne Lewis Closed Tournament (U8) | Standard | 2023-08-26 | 2023-08-26 | Tshwane (GTP) | 6 | 1235.1 | 6 | 4 | 1370.1 | 0 | Details |
| 13 | 2023 Lubowski Open Tournament (F) | Standard | 2023-06-24 | 2023-06-24 | Tshwane (GTP) | 5 | 1241.9 | 5 | 2.5 | 1214.3 | 0 | Details |
| 14 | Tuks Junior Developmental Chess Tournament 2023 (Green) | Standard | 2023-03-18 | 2023-03-18 | Tshwane (GTP) | 5 | 1165.5 | 5 | 4.5 | 1550.1 | 0 | Details |
| 15 | 2023 Tshwane Chess Open Registration Tournament (F) | Standard | 2023-01-28 | 2023-01-28 | Tshwane (GTP) | 5 | 1200 | 5 | 1.5 | 1015.3 | 0 | 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 | 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 (History)
| Games | 77 |
| Wins | 44 |
| Draws | 6 |
| Losses | 27 |
| White | 38 |
| Black | 39 |
| White wins | 24 |
| Black wins | 20 |
| Score | 47 |
| Percent | 61 |
| Dp | 93.8 |
| AOR | 1264.7 |
| Performance | 1358.6 |
Rankings (Main)
| National | |
| Overall | 3408 |
| Gender | 2888 |
| Age group | 261 |
| Gender/Age | 207 |
| Provincial | |
| Overall | 1181 |
| Gender | 990 |
| Age group | 96 |
| Gender/Age | 79 |
| Regional | |
| Overall | 430 |
| Gender | 350 |
| Age group | 32 |
| Gender/Age | 23 |
Rankings (Standard)
| National | |
| Overall | 3283 |
| Gender | 2764 |
| Age group | 265 |
| Gender/Age | 210 |
| Provincial | |
| Overall | 1173 |
| Gender | 984 |
| Age group | 100 |
| Gender/Age | 83 |
| Regional | |
| Overall | 443 |
| Gender | 359 |
| Age group | 35 |
| Gender/Age | 25 |
Rankings (Rapid)
| 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 (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 | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance (12 months)
| Games | 5 |
| Score | 2 |
| Percent | 40 |
| Aor | 1425.1 |
| Dp | -85 |
| Prat | 1340.1 |
Performance (History)
| Games | 77 |
| Score | 47 |
| Percent | 61 |
| Aor | 1264.7 |
| Dp | 93.8 |
| Prat | 1358.6 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Grobbelaar, M (Mari) | 4 | 2 | 2 | 2023 Etienne Lewis Closed Tournament (U8) | 2025 Tshwane South School District CLOSED League Championship (U9A) | Details |
| Overall | 2 | Rocher, G (Gideon) | 3 | 1 | 2 | 2023 Lubowski Open Tournament (F) | 2024 Elise Steenkamp Open Chess Tournament (Bishops) | Details |
| Overall | 3 | Wiehahn, L (Luke) | 3 | 2 | 1 | 2023 Etienne Lewis Closed Tournament (U8) | 2024 Etienne Lewis (U10) | Details |
| Overall | 4 | Erdogan, D (Demir) | 3 | 2 | 1 | Tuks Junior Developmental Chess Tournament 2023 (Green) | 2025 Tshwane South School District CLOSED League Championship (U9A) | Details |
| Overall | 5 | Swart, E (Eben) | 3 | 2 | 1 | 2023 Etienne Lewis Closed Tournament (U8) | 2024 Elise Steenkamp Open Chess Tournament (Bishops) | Details |
| Standard | 1 | Grobbelaar, M (Mari) | 4 | 2 | 2 | 2023 Etienne Lewis Closed Tournament (U8) | 2025 Tshwane South School District CLOSED League Championship (U9A) | Details |
| Standard | 2 | Rocher, G (Gideon) | 3 | 1 | 2 | 2023 Lubowski Open Tournament (F) | 2024 Elise Steenkamp Open Chess Tournament (Bishops) | Details |
| Standard | 3 | Wiehahn, L (Luke) | 3 | 2 | 1 | 2023 Etienne Lewis Closed Tournament (U8) | 2024 Etienne Lewis (U10) | Details |
| Standard | 4 | Erdogan, D (Demir) | 3 | 2 | 1 | Tuks Junior Developmental Chess Tournament 2023 (Green) | 2025 Tshwane South School District CLOSED League Championship (U9A) | Details |
| Standard | 5 | Swart, E (Eben) | 3 | 2 | 1 | 2023 Etienne Lewis Closed Tournament (U8) | 2024 Elise Steenkamp Open Chess Tournament (Bishops) | Details |