PLAYER PAGE
Arno Rostoll
1170192944Eden (WEG)Personal
Main rating
| Rating | 1456.4 |
| K-factor | 32 |
| Floor | 994.2 |
| Highest | 1494.2 (2025-04-01) |
| Min/Max +/- allowed | 109 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1386.9 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1456.4 |
| K-factor | 32 |
| Floor | 994.2 |
| Highest | 1494.2 (2025-04-01) |
| Min/Max +/- allowed | 109 |
Standard rating
| Rating | 1465 |
| K-factor | 32 |
| Floor | 996.8 |
| Highest | 1496.8 (2025-04-01) |
| Min/Max +/- allowed | 108.6 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1400.3 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1465 |
| K-factor | 32 |
| Floor | 996.8 |
| Highest | 1496.8 (2025-04-01) |
| Min/Max +/- allowed | 108.6 |
Rapid rating
| Rating | 1219.6 |
| K-factor | 36 |
| Floor | 755.5 |
| Highest | 1255.5 (2025-06-01) |
| Min/Max +/- allowed | 153.2 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1219.6 |
| K-factor | 36 |
| Floor | 755.5 |
| Highest | 1255.5 (2025-06-01) |
| Min/Max +/- allowed | 153.2 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-02-01) |
| 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 (2024-02-01) |
| 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 | Eden Schools Trials 1 2026 (U9 Boys) | Standard | 2026-03-14 | 2026-03-14 | Eden (WEG) | 5 | 1454.1 | 5 | 3 | 1358.1 | -13.6 | Details |
| 2 | George Trials 3 2026 (U9 Boys) | Standard | 2026-02-28 | 2026-02-28 | Eden (WEG) | 5 | 1454.1 | 5 | 4 | 1561.2 | 15.9 | Details |
| 3 | George Trials 2 2026 (U9 Boys) | Standard | 2026-02-14 | 2026-02-14 | Eden (WEG) | 5 | 1417.6 | 5 | 3 | 1412.4 | 0.3 | Details |
| 4 | George Trials 1 2026 (U9 Boys) | Standard | 2026-01-31 | 2026-01-31 | Eden (WEG) | 5 | 1417.6 | 5 | 4 | 1643.7 | 13.2 | Details |
| 5 | HCPS Invitational Rapid Tournament 2025 (U9) | Rapid | 2025-10-18 | 2025-10-18 | Eden (WEG) | 6 | 1440.4 | 6 | 2 | 1252.7 | -14.3 | Details |
| 6 | George Top Schools 2025 (U9) | Standard | 2025-07-26 | 2025-07-26 | Eden (WEG) | 5 | 1440.8 | 5 | 3 | 1444.7 | -0.2 | Details |
| 7 | Dennie Chess Rapid Tournament Open 2025 (U9) | Rapid | 2025-05-24 | 2025-05-24 | Eden (WEG) | 5 | 1433.6 | 5 | 4 | 1506 | 4.5 | Details |
| 8 | Eden Chess Trials 2 2025 (U10) | Standard | 2025-03-15 | 2025-04-12 | Eden (WEG) | 10 | 1494.2 | 10 | 6 | 1443.6 | -9.6 | Details |
| 9 | South African Junior Closed Chess Championships 2025 (U8 Open) | Classical | 2025-03-31 | 2025-04-05 | Cape Winelands (WCW) | 9 | 1494.2 | 9 | 4 | 1340.6 | -31.4 | Details |
| 10 | Eden Schools Chess Trials 1 2025 (U9 Boys) | Standard | 2025-03-08 | 2025-03-08 | Eden (WEG) | 5 | 1448.3 | 5 | 4 | 1495.3 | 4.3 | Details |
| 11 | George Schools Chess Trials 3 2025 (U9 Boys) | Standard | 2025-03-01 | 2025-03-01 | Eden (WEG) | 5 | 1448.3 | 5 | 4 | 1537.8 | 9.6 | Details |
| 12 | George Schools Chess Trials 2 2025 (U9 Boys) | Standard | 2025-02-15 | 2025-02-15 | Eden (WEG) | 5 | 1329.5 | 5 | 5 | 1676.3 | 34.7 | Details |
| 13 | George Schools Chess Trials 1 2025 (U9 Boys) | Standard | 2025-02-01 | 2025-02-01 | Eden (WEG) | 5 | 1329.5 | 5 | 4 | 1508.5 | 16.9 | Details |
| 14 | Eden Chess Union League 2024 (1st Division) | Standard | 2024-10-12 | 2024-10-12 | Eden (WEG) | 5 | 1383.9 | 5 | 1 | 1067.7 | -30.2 | Details |
| 15 | Western Cape Top Schools Championship 2024 (U7 Mixed) | Standard | 2024-08-30 | 2024-09-01 | Eden (WEG) | 5 | 1360.3 | 4 | 3.5 | 1524.7 | 13.1 | Details |
| 16 | George Primary Top Schools 2024 (U7) | Standard | 2024-07-20 | 2024-07-20 | Eden (WEG) | 5 | 1317.6 | 4 | 4 | 1621.9 | 23.7 | Details |
| 17 | Eden Open 2024 (D) | Standard | 2024-06-22 | 2024-06-22 | Eden (WEG) | 5 | 1339.7 | 4 | 1 | 1180.4 | -12.3 | Details |
| 18 | Western Cape PS Individuals Championship 2024 (U7 Boys) | Standard | 2024-05-04 | 2024-05-05 | West Coast (WCU) | 6 | 1383.9 | 6 | 2.5 | 1172.7 | -24.6 | Details |
| 19 | Eden Chess Trials 2 2024 (U8) | Standard | 2024-04-13 | 2024-04-20 | Eden (WEG) | 10 | 1344.6 | 10 | 6 | 1291.2 | -11.8 | Details |
| 20 | Eden School Chess Trials 1 2024 (U7 Boys) | Standard | 2024-03-09 | 2024-03-09 | Eden (WEG) | 5 | 1286.3 | 5 | 4 | 1468.6 | 17.3 | Details |
| 21 | George Schools Trials 3 2024 (U7 Boys) | Standard | 2024-03-02 | 2024-03-02 | Eden (WEG) | 5 | 1286.3 | 5 | 4 | 1445.7 | 15.1 | Details |
| 22 | George Schools Trials 2 2024 (U7 Boys) | Standard | 2024-02-17 | 2024-02-17 | Eden (WEG) | 5 | 1200 | 5 | 5 | 1587.2 | 37.2 | Details |
| 23 | George Schools Trials 1 2024 (U7 Boys) | Standard | 2024-02-03 | 2024-02-03 | Eden (WEG) | 5 | 1200 | 5 | 3 | 1254.6 | 6 | 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 | 20 |
| Wins | 14 |
| Draws | 0 |
| Losses | 6 |
| White | 9 |
| Black | 11 |
| White wins | 5 |
| Black wins | 9 |
| Score | 14 |
| Percent | 70 |
| Dp | 170 |
| AOR | 1323.8 |
| Performance | 1493.8 |
Game statistics (History)
| Games | 128 |
| Wins | 83 |
| Draws | 2 |
| Losses | 43 |
| White | 64 |
| Black | 64 |
| White wins | 45 |
| Black wins | 38 |
| Score | 84 |
| Percent | 65.6 |
| Dp | 132.8 |
| AOR | 1282.1 |
| Performance | 1414.9 |
Rankings (Main)
| National | |
| Overall | 2593 |
| Gender | 2235 |
| Age group | 87 |
| Gender/Age | 74 |
| Provincial | |
| Overall | 796 |
| Gender | 658 |
| Age group | 29 |
| Gender/Age | 25 |
| Regional | |
| Overall | 174 |
| Gender | 135 |
| Age group | 13 |
| Gender/Age | 10 |
Rankings (Standard)
| National | |
| Overall | 2239 |
| Gender | 1920 |
| Age group | 79 |
| Gender/Age | 67 |
| Provincial | |
| Overall | 655 |
| Gender | 532 |
| Age group | 24 |
| Gender/Age | 19 |
| Regional | |
| Overall | 144 |
| Gender | 109 |
| Age group | 12 |
| Gender/Age | 9 |
Rankings (Rapid)
| National | |
| Overall | 3898 |
| Gender | 3081 |
| Age group | 247 |
| Gender/Age | 190 |
| Provincial | |
| Overall | 1510 |
| Gender | 1170 |
| Age group | 124 |
| Gender/Age | 99 |
| Regional | |
| Overall | 166 |
| Gender | 131 |
| Age group | 19 |
| Gender/Age | 15 |
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 | 20 |
| Score | 14 |
| Percent | 70 |
| Aor | 1323.8 |
| Dp | 170 |
| Prat | 1493.8 |
Performance (12 months)
| Games | 26 |
| Score | 16 |
| Percent | 61.5 |
| Aor | 1340.1 |
| Dp | 98.1 |
| Prat | 1438.2 |
Performance (History)
| Games | 128 |
| Score | 84 |
| Percent | 65.6 |
| Aor | 1282.1 |
| Dp | 132.8 |
| Prat | 1414.9 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Vermeulen, E (Elster) | 9 | 4 | 5 | George Schools Trials 1 2024 (U7 Boys) | George Trials 2 2026 (U9 Boys) | Details |
| Overall | 2 | Rens, B (Beauwin) | 6 | 5 | 1 | Eden Chess Trials 2 2024 (U8) | George Trials 3 2026 (U9 Boys) | Details |
| Overall | 3 | Van Der Merwe, F (Finley) | 6 | 2 | 4 | George Schools Trials 1 2024 (U7 Boys) | George Top Schools 2025 (U9) | Details |
| Overall | 4 | Cornforth, J (Joshua) | 5 | 3 | 2 | George Schools Trials 2 2024 (U7 Boys) | George Trials 2 2026 (U9 Boys) | Details |
| Overall | 5 | Rens, D (Deauwin) | 4 | 2 | 2 | George Schools Trials 2 2024 (U7 Boys) | Eden Open 2024 (D) | Details |
| Standard | 1 | Vermeulen, E (Elster) | 9 | 4 | 5 | George Schools Trials 1 2024 (U7 Boys) | George Trials 2 2026 (U9 Boys) | Details |
| Standard | 2 | Rens, B (Beauwin) | 6 | 5 | 1 | Eden Chess Trials 2 2024 (U8) | George Trials 3 2026 (U9 Boys) | Details |
| Standard | 3 | Van Der Merwe, F (Finley) | 6 | 2 | 4 | George Schools Trials 1 2024 (U7 Boys) | George Top Schools 2025 (U9) | Details |
| Standard | 4 | Cornforth, J (Joshua) | 4 | 2 | 2 | George Schools Trials 2 2024 (U7 Boys) | George Trials 2 2026 (U9 Boys) | Details |
| Standard | 5 | Rens, D (Deauwin) | 4 | 2 | 2 | George Schools Trials 2 2024 (U7 Boys) | Eden Open 2024 (D) | Details |
| Rapid | 1 | Lawa, V (Veretariki) | 2 | 1 | 1 | Dennie Chess Rapid Tournament Open 2025 (U9) | HCPS Invitational Rapid Tournament 2025 (U9) | Details |