PLAYER PAGE
Marc Loon
1700148035Johannesburg Metro (GJM)Personal
Main rating
| Rating | 1562.3 |
| K-factor | 32 |
| Floor | 1070.7 |
| Highest | 1573.8 (2022-12-01) |
| Min/Max +/- allowed | 97 |
| Rating Change () | |
| Games | 21 |
| Score | 11 |
| We | 10.55 |
| SWe | 0.22 |
| Temp +/- | 7.1 |
| Penalties | 0 |
| Weight perform | 1470.3 |
| Final +/- | +7.1 |
| New Rating () | |
| Rating | 1569.4 |
| K-factor | 32 |
| Floor | 1070.7 |
| Highest | 1573.8 (2022-12-01) |
| Min/Max +/- allowed | 97.4 |
Standard rating
| Rating | 1556.6 |
| K-factor | 32 |
| Floor | 1070.7 |
| Highest | 1570.7 (2025-07-01) |
| Min/Max +/- allowed | 97.8 |
| Rating Change () | |
| Games | 8 |
| Score | 4.5 |
| We | 4.22 |
| SWe | 0.28 |
| Temp +/- | 9.1 |
| Penalties | 0 |
| Weight perform | 1489.7 |
| Final +/- | +9.1 |
| New Rating () | |
| Rating | 1565.7 |
| K-factor | 32 |
| Floor | 1070.7 |
| Highest | 1570.7 (2025-07-01) |
| Min/Max +/- allowed | 97.8 |
Rapid rating
| Rating | 1393.6 |
| K-factor | 32 |
| Floor | 919 |
| Highest | 1476.4 (2024-06-01) |
| Min/Max +/- allowed | 111.8 |
| Rating Change () | |
| Games | 6 |
| Score | 3.5 |
| We | 3.1 |
| SWe | 0.4 |
| Temp +/- | 12.7 |
| Penalties | 0 |
| Weight perform | 1403.7 |
| Final +/- | +12.7 |
| New Rating () | |
| Rating | 1406.3 |
| K-factor | 32 |
| Floor | 919 |
| Highest | 1476.4 (2024-06-01) |
| Min/Max +/- allowed | 111.8 |
Blitz rating
| Rating | 1424.9 |
| K-factor | 32 |
| Floor | 924.9 |
| Highest | 1424.9 (2026-02-01) |
| Min/Max +/- allowed | 120.4 |
| Rating Change () | |
| Games | 7 |
| Score | 3 |
| We | 3.44 |
| SWe | -0.44 |
| Temp +/- | -14.2 |
| Penalties | 0 |
| Weight perform | 1549.1 |
| Final +/- | +120.4 |
| New Rating () | |
| Rating | 1545.2 |
| K-factor | 32 |
| Floor | 1045.2 |
| Highest | 1545.2 (2026-04-01) |
| Min/Max +/- allowed | 101.4 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Randburg Autumn Rapid 2026 | Rapid | 2026-04-14 | 2026-04-21 | Johannesburg Metro (GJM) | 6 | 1562.3 | 6 | 3.5 | 1561.9 | 0 | Details |
| 2 | Randburg Autumn Blitz 2026 | Blitz | 2026-04-07 | 2026-04-07 | Johannesburg Metro (GJM) | 7 | 1562.3 | 7 | 3 | 1614.5 | 2 | Details |
| 3 | Randburg NY Swiss 2026 | Standard | 2026-02-10 | 2026-03-31 | Johannesburg Metro (GJM) | 8 | 1562.3 | 8 | 4.5 | 1579.7 | 5 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Randburg Chess Club New Year Blitz 2026 | Blitz | 2026-01-20 | 2026-01-20 | Johannesburg Metro (GJM) | 7 | 1570.7 | 7 | 4 | 1540.4 | -1.3 | Details |
| 2 | Randburg Winter Swiss 2025 | Standard | 2025-07-29 | 2025-09-16 | Johannesburg Metro (GJM) | 8 | 1570.7 | 7 | 4 | 1508.8 | -8.5 | Details |
| 3 | Randburg Spring Blitz 2025 | Blitz | 2025-09-23 | 2025-09-23 | Johannesburg Metro (GJM) | 7 | 1570.7 | 7 | 4 | 1714.8 | 4.5 | Details |
| 4 | Randburg Club Champs Blitz 2025 | Blitz | 2025-07-08 | 2025-07-08 | Johannesburg Metro (GJM) | 7 | 1569.2 | 7 | 4 | 1573.2 | 0.4 | Details |
| 5 | South African Open 2025 (Blitz) | Blitz | 2025-07-02 | 2025-07-02 | Johannesburg Metro (GJM) | 9 | 1569.2 | 9 | 4.5 | 1593.1 | 0.6 | Details |
| 6 | Neil Savage Memorial Randburg Club Champs 2025 | Standard | 2025-05-06 | 2025-06-24 | Johannesburg Metro (GJM) | 8 | 1500.5 | 8 | 4.5 | 1763.3 | 42.8 | Details |
| 7 | Randburg Autumn Rapid 2025 | Rapid | 2025-04-15 | 2025-04-22 | Johannesburg Metro (GJM) | 7 | 1467.2 | 7 | 3 | 1498.9 | 1 | Details |
| 8 | Randburg Chess Club New Year Swiss 2025 | Standard | 2025-02-11 | 2025-04-01 | Johannesburg Metro (GJM) | 8 | 1467.2 | 8 | 4.5 | 1580.5 | 19.9 | Details |
| 9 | Randburg Chess Club New Year Rapid 2025 | Rapid | 2025-01-28 | 2025-02-04 | Johannesburg Metro (GJM) | 6 | 1449.3 | 6 | 3 | 1596.1 | 11.2 | Details |
| 10 | Randburg New Year Blitz 2025 | Blitz | 2025-01-21 | 2025-01-21 | Johannesburg Metro (GJM) | 9 | 1448.8 | 9 | 4 | 1455 | 0.4 | Details |
| 11 | Randburg Summer Swiss 2024 | Standard | 2024-10-29 | 2024-11-26 | Johannesburg Metro (GJM) | 5 | 1468.7 | 5 | 2 | 1348.9 | -12.4 | Details |
| 12 | Randburg Chess Club Blitz Championship 2024 | Blitz | 2024-10-22 | 2024-10-22 | Johannesburg Metro (GJM) | 9 | 1465.1 | 9 | 4 | 1451.7 | -0.9 | Details |
| 13 | Randburg Spring Swiss 2024 | Standard | 2024-08-20 | 2024-10-08 | Johannesburg Metro (GJM) | 7 | 1465.1 | 6 | 3 | 1488.3 | 3.2 | Details |
| 14 | Randburg Autumn Rapid 2024 | Rapid | 2024-05-28 | 2024-06-04 | Johannesburg Metro (GJM) | 6 | 1450.1 | 6 | 4 | 1584 | 9.4 | Details |
| 15 | Randburg Chess Club Championship 2024 | Standard | 2024-04-09 | 2024-05-21 | Johannesburg Metro (GJM) | 7 | 1355 | 7 | 4.5 | 1738.1 | 52.7 | Details |
| 16 | Randburg Mid-Year Themed Rapid 2023 | Rapid | 2023-05-30 | 2023-06-06 | Johannesburg Metro (GJM) | 6 | 1322.8 | 6 | 3 | 1531.7 | 15.4 | Details |
| 17 | Randburg Autumn Swiss 2023 | Standard | 2023-04-11 | 2023-05-23 | Johannesburg Metro (GJM) | 7 | 1290 | 7 | 3.5 | 1414.7 | 18.2 | Details |
| 18 | Randburg New Year Swiss 2023 | Standard | 2023-01-31 | 2023-03-14 | Johannesburg Metro (GJM) | 7 | 1250.4 | 7 | 3 | 1390.5 | 22.1 | Details |
| 19 | Randburg Summer Swiss 2022 | Standard | 2022-10-25 | 2022-12-06 | Johannesburg Metro (GJM) | 7 | 1200 | 3 | 2 | 1571.1 | 25.1 | Details |
Game statistics ( )
| Games | 13 |
| Wins | 5 |
| Draws | 3 |
| Losses | 5 |
| White | 6 |
| Black | 7 |
| White wins | 3 |
| Black wins | 2 |
| Score | 6.5 |
| Percent | 50 |
| Dp | 0 |
| AOR | 1590.2 |
| Performance | 1590.2 |
Game statistics ()
| Games | 28 |
| Wins | 13 |
| Draws | 4 |
| Losses | 11 |
| White | 14 |
| Black | 14 |
| White wins | 7 |
| Black wins | 6 |
| Score | 15 |
| Percent | 53.6 |
| Dp | 30.4 |
| AOR | 1544.4 |
| Performance | 1574.8 |
Game statistics (History)
| Games | 152 |
| Wins | 75 |
| Draws | 9 |
| Losses | 68 |
| White | 76 |
| Black | 76 |
| White wins | 38 |
| Black wins | 37 |
| Score | 79.5 |
| Percent | 52.3 |
| Dp | 19.6 |
| AOR | 1532.2 |
| Performance | 1551.8 |
Rankings (Main)
| National | |
| Overall | 1269 |
| Gender | 1155 |
| Age group | 107 |
| Gender/Age | 107 |
| Provincial | |
| Overall | 454 |
| Gender | 410 |
| Age group | 41 |
| Gender/Age | 41 |
| Regional | |
| Overall | 166 |
| Gender | 148 |
| Age group | 15 |
| Gender/Age | 15 |
Rankings (Standard)
| National | |
| Overall | 1231 |
| Gender | 1107 |
| Age group | 102 |
| Gender/Age | 102 |
| Provincial | |
| Overall | 444 |
| Gender | 398 |
| Age group | 38 |
| Gender/Age | 38 |
| Regional | |
| Overall | 155 |
| Gender | 137 |
| Age group | 14 |
| Gender/Age | 14 |
Rankings (Rapid)
| National | |
| Overall | 865 |
| Gender | 756 |
| Age group | 61 |
| Gender/Age | 61 |
| Provincial | |
| Overall | 142 |
| Gender | 122 |
| Age group | 23 |
| Gender/Age | 23 |
| Regional | |
| Overall | 76 |
| Gender | 69 |
| Age group | 14 |
| Gender/Age | 14 |
Rankings (Blitz)
| National | |
| Overall | 164 |
| Gender | 159 |
| Age group | 23 |
| Gender/Age | 23 |
| Provincial | |
| Overall | 55 |
| Gender | 54 |
| Age group | 12 |
| Gender/Age | 12 |
| Regional | |
| Overall | 30 |
| Gender | 29 |
| Age group | 8 |
| Gender/Age | 8 |
Performance ( )
| Games | 13 |
| Score | 6.5 |
| Percent | 50 |
| Aor | 1590.2 |
| Dp | 0 |
| Prat | 1590.2 |
Performance ()
| Games | 28 |
| Score | 15 |
| Percent | 53.6 |
| Aor | 1544.4 |
| Dp | 30.4 |
| Prat | 1574.8 |
Performance (12 months)
| Games | 66 |
| Score | 36 |
| Percent | 54.5 |
| Aor | 1569.2 |
| Dp | 38.6 |
| Prat | 1607.8 |
Performance (History)
| Games | 152 |
| Score | 79.5 |
| Percent | 52.3 |
| Aor | 1532.2 |
| Dp | 19.6 |
| Prat | 1551.8 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Molema, W (Warner) | 6 | 4 | 2 | Randburg New Year Swiss 2023 | Randburg Autumn Rapid 2025 | Details |
| Overall | 2 | Hodgson, TF (Timothy Fish) | 5 | 4 | 1 | Randburg Chess Club Championship 2024 | Neil Savage Memorial Randburg Club Champs 2025 | Details |
| Overall | 3 | Durow, NL (Neil) | 5 | 4 | 1 | Randburg Autumn Rapid 2024 | Randburg Chess Club New Year Blitz 2026 | Details |
| Overall | 4 | Ngubeni, JM (Jackie) | 5 | 3 | 2 | Randburg Chess Club Championship 2024 | Randburg Chess Club New Year Blitz 2026 | Details |
| Overall | 5 | Essop, R (Rashied) | 5 | 3 | 2 | Randburg Autumn Swiss 2023 | South African Open 2025 (Blitz) | Details |
| Standard | 1 | Snyckers, FA (Frank Alexander) | 5 | 3 | 2 | Randburg Autumn Swiss 2023 | Randburg Winter Swiss 2025 | Details |
| Standard | 2 | Molema, W (Warner) | 3 | 2 | 1 | Randburg New Year Swiss 2023 | Randburg Chess Club New Year Swiss 2025 | Details |
| Standard | 3 | Essop, R (Rashied) | 3 | 1 | 2 | Randburg Autumn Swiss 2023 | Randburg Summer Swiss 2024 | Details |
| Standard | 4 | Sparks, SJW (Stephen) | 3 | 0 | 3 | Randburg Summer Swiss 2022 | Randburg Winter Swiss 2025 | Details |
| Standard | 5 | Hodgson, TF (Timothy Fish) | 2 | 1 | 1 | Randburg Chess Club Championship 2024 | Neil Savage Memorial Randburg Club Champs 2025 | Details |
| Rapid | 1 | Molema, W (Warner) | 3 | 2 | 1 | Randburg Mid-Year Themed Rapid 2023 | Randburg Autumn Rapid 2025 | Details |
| Rapid | 2 | Mungal, Z (Zoey) | 2 | 2 | 0 | Randburg Mid-Year Themed Rapid 2023 | Randburg Autumn Rapid 2024 | Details |
| Rapid | 3 | Metcalfe, AR (Allister Richard) | 2 | 1 | 1 | Randburg Mid-Year Themed Rapid 2023 | Randburg Chess Club New Year Rapid 2025 | Details |
| Rapid | 4 | Ngubeni, JM (Jackie) | 2 | 1 | 1 | Randburg Autumn Rapid 2024 | Randburg Autumn Rapid 2025 | Details |
| Rapid | 5 | Hodgson, TF (Timothy Fish) | 2 | 2 | 0 | Randburg Autumn Rapid 2024 | Randburg Chess Club New Year Rapid 2025 | Details |
| Blitz | 1 | Tak, R (Rannveer) | 3 | 3 | 0 | Randburg Chess Club Blitz Championship 2024 | Randburg Spring Blitz 2025 | Details |
| Blitz | 2 | Durow, NL (Neil) | 2 | 2 | 0 | Randburg New Year Blitz 2025 | Randburg Chess Club New Year Blitz 2026 | Details |
| Blitz | 3 | Ngubeni, JM (Jackie) | 2 | 1 | 1 | Randburg New Year Blitz 2025 | Randburg Chess Club New Year Blitz 2026 | Details |