PLAYER TOURNAMENT DETAILS
Calvin Nicholas Jacobs
109086379Tshwane (GTP)Tournament details
| Tour Id | 20251024 |
| Group Id | 20251015 |
| Name | South African Junior Closed Chess Championships 2025 |
| Section | U16 Open |
| Rounds | 9 |
| Format | Swiss |
| Type | Classical |
| Start | 2025-03-31 |
| End | 2025-04-05 |
| Submitted | 2025-04-09 |
| Rated | 2025-04-09 |
| Submit age weight | 1 |
| Host | Cape Winelands (WCW) |
| Total time | 120 |
| Time weight | 1 |
| Official results | Official results |
General
| Games | 9 |
| Score | 6 |
| Percent | 66.7 |
| Dp | 141.7 |
| Aor | 1754.8 |
| Perform | 1896.5 |
| Penalties | 0 |
| Wins | 5 |
| Draws | 2 |
| Losses | 2 |
| White | 4 |
| Black | 5 |
| White wins | 2 |
| Black wins | 3 |
| Default wins | 0 |
| Default losses | 0 |
| Byes | 0 |
| Half byes | 0 |
| Rank | 2 |
| Final Pos | 5 |
| Share Pos | 5 |
| Count for rating | Yes |
Analysis (Main)
| Rating | 1974.7 |
| K-factor | 20 |
| Score | 6 |
| Expected score | 6.76 |
| Score - Expected score | -0.76 |
| Rating +/- | -15.2 |
Analysis (Type)
| Rating | 1988.1 |
| K-factor | 20 |
| Score | 6 |
| Expected score | 6.85 |
| Score - Expected score | -0.85 |
| Rating +/- | -17 |
Opponents
| Round | Date | Opponent | Fed | Title | Main | Type | Col | Res | Main | Type | Cfr | ||||
| We | Swe | +/- | We | Swe | +/- | ||||||||||
| 1 | 2025-03-31 | Botha, T (Tyler) | EBC | 1582.9 | 1579.9 | B | 1 | 0.91 | 0.09 | 1.8 | 0.93 | 0.07 | 1.4 | Yes | |
| 2 | 2025-03-31 | Potgieter, W (Werne) | WCW | 1714.6 | 1711.7 | W | 1 | 0.84 | 0.16 | 3.2 | 0.86 | 0.14 | 2.8 | Yes | |
| 3 | 2025-04-01 | Byliefeldt, L (Leroux) | NBR | 1742.5 | 1746.9 | B | 1 | 0.73 | 0.27 | 5.4 | 0.74 | 0.26 | 5.2 | Yes | |
| 4 | 2025-04-01 | Claassen, R (Raynier) | WEG | JM | 1920.5 | 1907.9 | W | 0.5 | 0.6 | -0.1 | -2 | 0.64 | -0.14 | -2.8 | Yes |
| 5 | 2025-04-03 | Felix, R (Raphael) | NBR | CM | 2009.8 | 2029.2 | B | 0 | 0.42 | -0.42 | -8.4 | 0.41 | -0.41 | -8.2 | Yes |
| 6 | 2025-04-03 | Naidoo, K (Kirthan) | GJM | 1777.2 | 1780.2 | W | 0.5 | 0.77 | -0.27 | -5.4 | 0.78 | -0.28 | -5.6 | Yes | |
| 7 | 2025-04-04 | Mungal, E (Ethan) | NBR | 1723.3 | 1744.5 | B | 0 | 0.75 | -0.75 | -15 | 0.74 | -0.74 | -14.8 | Yes | |
| 8 | 2025-04-04 | Chang, S (Samuel) | EBC | 1625.4 | 1631.3 | W | 1 | 0.95 | 0.05 | 1 | 0.96 | 0.04 | 0.8 | Yes | |
| 9 | 2025-04-05 | Boheim, E (Eugene) | NBR | 1697 | 1707.6 | B | 1 | 0.78 | 0.22 | 4.4 | 0.78 | 0.22 | 4.4 | Yes | |