PLAYER PAGE
Arno Rostoll
1170192944Eden (WEG)Personal
Main rating
| Rating | 1454.1 |
| K-factor | 32 |
| Floor | 994.2 |
| Highest | 1494.2 (2025-04-01) |
| Min/Max +/- allowed | 109 |
| Rating Change () | |
| Games | 5 |
| Score | 4 |
| We | 3.4 |
| SWe | 0.5 |
| Temp +/- | 15.9 |
| Penalties | 0 |
| Weight perform | 1462.9 |
| Final +/- | 15.9 |
| New Rating () | |
| Rating | 1470 |
| K-factor | 32 |
| Floor | 994.2 |
| Highest | 1494.2 (2025-04-01) |
| Min/Max +/- allowed | 109 |
Standard rating
| Rating | 1467.3 |
| K-factor | 32 |
| Floor | 996.8 |
| Highest | 1496.8 (2025-04-01) |
| Min/Max +/- allowed | 108.6 |
| Rating Change () | |
| Games | 5 |
| Score | 4 |
| We | 3.49 |
| SWe | 0.51 |
| Temp +/- | 16.2 |
| Penalties | 0 |
| Weight perform | 1488.2 |
| Final +/- | 21 |
| New Rating () | |
| Rating | 1488.2 |
| 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 |
| 1 | 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 |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | George Trials 2 2026 (U9 Boys) | Standard | 2026-02-14 | 2026-02-14 | Eden (WEG) | 5 | 1417.6 | 5 | 3 | 1412.4 | 0 | Details |
| 2 | George Trials 1 2026 (U9 Boys) | Standard | 2026-01-31 | 2026-01-31 | Eden (WEG) | 5 | 1417.6 | 5 | 4 | 1643.7 | 0 | Details |
| 3 | HCPS Invitational Rapid Tournament 2025 (U9) | Rapid | 2025-10-18 | 2025-10-18 | Eden (WEG) | 6 | 1440.4 | 6 | 2 | 1252.7 | 0 | Details |
| 4 | George Top Schools 2025 (U9) | Standard | 2025-07-26 | 2025-07-26 | Eden (WEG) | 5 | 1440.8 | 5 | 3 | 1444.7 | 0 | Details |
| 5 | Dennie Chess Rapid Tournament Open 2025 (U9) | Rapid | 2025-05-24 | 2025-05-24 | Eden (WEG) | 5 | 1433.6 | 5 | 4 | 1506 | 0 | Details |
| 6 | Eden Chess Trials 2 2025 (U10) | Standard | 2025-03-15 | 2025-04-12 | Eden (WEG) | 10 | 1494.2 | 10 | 6 | 1443.6 | 0 | Details |
| 7 | 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 | 0 | Details |
| 8 | Eden Schools Chess Trials 1 2025 (U9 Boys) | Standard | 2025-03-08 | 2025-03-08 | Eden (WEG) | 5 | 1448.3 | 5 | 4 | 1495.3 | 0 | Details |
| 9 | George Schools Chess Trials 3 2025 (U9 Boys) | Standard | 2025-03-01 | 2025-03-01 | Eden (WEG) | 5 | 1448.3 | 5 | 4 | 1537.8 | 0 | Details |
| 10 | George Schools Chess Trials 2 2025 (U9 Boys) | Standard | 2025-02-15 | 2025-02-15 | Eden (WEG) | 5 | 1329.5 | 5 | 5 | 1676.3 | 0 | Details |
| 11 | George Schools Chess Trials 1 2025 (U9 Boys) | Standard | 2025-02-01 | 2025-02-01 | Eden (WEG) | 5 | 1329.5 | 5 | 4 | 1508.5 | 0 | Details |
| 12 | Eden Chess Union League 2024 (1st Division) | Standard | 2024-10-12 | 2024-10-12 | Eden (WEG) | 5 | 1383.9 | 5 | 1 | 1067.7 | 0 | Details |
| 13 | 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 | 0 | Details |
| 14 | George Primary Top Schools 2024 (U7) | Standard | 2024-07-20 | 2024-07-20 | Eden (WEG) | 5 | 1317.6 | 4 | 4 | 1621.9 | 0 | Details |
| 15 | Eden Open 2024 (D) | Standard | 2024-06-22 | 2024-06-22 | Eden (WEG) | 5 | 1339.7 | 4 | 1 | 1180.4 | 0 | Details |
| 16 | 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 | 0 | Details |
| 17 | Eden Chess Trials 2 2024 (U8) | Standard | 2024-04-13 | 2024-04-20 | Eden (WEG) | 10 | 1344.6 | 10 | 6 | 1291.2 | 0 | Details |
| 18 | Eden School Chess Trials 1 2024 (U7 Boys) | Standard | 2024-03-09 | 2024-03-09 | Eden (WEG) | 5 | 1286.3 | 5 | 4 | 1468.6 | 0 | Details |
| 19 | George Schools Trials 3 2024 (U7 Boys) | Standard | 2024-03-02 | 2024-03-02 | Eden (WEG) | 5 | 1286.3 | 5 | 4 | 1445.7 | 0 | Details |
| 20 | George Schools Trials 2 2024 (U7 Boys) | Standard | 2024-02-17 | 2024-02-17 | Eden (WEG) | 5 | 1200 | 5 | 5 | 1587.2 | 0 | Details |
| 21 | George Schools Trials 1 2024 (U7 Boys) | Standard | 2024-02-03 | 2024-02-03 | Eden (WEG) | 5 | 1200 | 5 | 3 | 1254.6 | 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 | 15 |
| Wins | 11 |
| Draws | 0 |
| Losses | 4 |
| White | 7 |
| Black | 8 |
| White wins | 5 |
| Black wins | 6 |
| Score | 11 |
| Percent | 73.3 |
| Dp | 198.3 |
| AOR | 1340.8 |
| Performance | 1539.1 |
Game statistics (History)
| Games | 123 |
| Wins | 80 |
| Draws | 2 |
| Losses | 41 |
| White | 62 |
| Black | 61 |
| White wins | 45 |
| Black wins | 35 |
| Score | 81 |
| Percent | 65.9 |
| Dp | 134.8 |
| AOR | 1282.5 |
| Performance | 1417.3 |
Rankings (Main)
| National | |
| Overall | 2354 |
| Gender | 2032 |
| Age group | 66 |
| Gender/Age | 54 |
| Provincial | |
| Overall | 712 |
| Gender | 593 |
| Age group | 19 |
| Gender/Age | 14 |
| Regional | |
| Overall | 155 |
| Gender | 127 |
| Age group | 11 |
| Gender/Age | 8 |
Rankings (Standard)
| National | |
| Overall | 2015 |
| Gender | 1745 |
| Age group | 53 |
| Gender/Age | 44 |
| Provincial | |
| Overall | 561 |
| Gender | 473 |
| Age group | 15 |
| Gender/Age | 12 |
| Regional | |
| Overall | 120 |
| Gender | 100 |
| Age group | 9 |
| Gender/Age | 7 |
Rankings (Rapid)
| National | |
| Overall | 3759 |
| Gender | 2969 |
| Age group | 162 |
| Gender/Age | 123 |
| Provincial | |
| Overall | 1499 |
| Gender | 1165 |
| Age group | 87 |
| Gender/Age | 69 |
| Regional | |
| Overall | 150 |
| Gender | 118 |
| Age group | 18 |
| Gender/Age | 14 |
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 | 15 |
| Score | 11 |
| Percent | 73.3 |
| Aor | 1340.8 |
| Dp | 198.3 |
| Prat | 1539.1 |
Performance (12 months)
| Games | 55 |
| Score | 34 |
| Percent | 61.8 |
| Aor | 1342 |
| Dp | 100.5 |
| Prat | 1442.4 |
Performance (History)
| Games | 123 |
| Score | 81 |
| Percent | 65.9 |
| Aor | 1282.5 |
| Dp | 134.8 |
| Prat | 1417.3 |
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 | Van Der Merwe, F (Finley) | 6 | 2 | 4 | George Schools Trials 1 2024 (U7 Boys) | George Top Schools 2025 (U9) | Details |
| Overall | 3 | Rens, B (Beauwin) | 6 | 5 | 1 | Eden Chess Trials 2 2024 (U8) | George Trials 3 2026 (U9 Boys) | 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 | Lawa, V (Veretariki) | 4 | 3 | 1 | George Primary Top Schools 2024 (U7) | HCPS Invitational Rapid Tournament 2025 (U9) | 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 | Van Der Merwe, F (Finley) | 6 | 2 | 4 | George Schools Trials 1 2024 (U7 Boys) | George Top Schools 2025 (U9) | Details |
| Standard | 3 | Rens, B (Beauwin) | 6 | 5 | 1 | Eden Chess Trials 2 2024 (U8) | George Trials 3 2026 (U9 Boys) | 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 |