PLAYER PAGE
Izak Jacobs
1180337480Nkangala (MNW)Personal
Main rating
| Rating | 1410.5 |
| K-factor | 32 |
| Floor | 926.4 |
| Highest | 1426.4 (2026-07-01) |
| Min/Max +/- allowed | 120 |
| Rating Change () | |
| Games | 5 |
| Score | 4 |
| We | 3.47 |
| SWe | 0.44 |
| Temp +/- | 13.9 |
| Penalties | 0 |
| Weight perform | 1343.8 |
| Final +/- | +13.9 |
| New Rating () | |
| Rating | 1424.5 |
| K-factor | 32 |
| Floor | 926.4 |
| Highest | 1426.4 (2026-07-01) |
| Min/Max +/- allowed | 120.1 |
Standard rating
| Rating | 1431.7 |
| K-factor | 32 |
| Floor | 931.7 |
| Highest | 1431.7 (2026-10-01) |
| Min/Max +/- allowed | 119.2 |
| Rating Change () | |
| Games | 5 |
| Score | 4 |
| We | 3.59 |
| SWe | 0.41 |
| Temp +/- | 13.2 |
| Penalties | 0 |
| Weight perform | 1410 |
| Final +/- | +13.2 |
| New Rating () | |
| Rating | 1444.9 |
| K-factor | 32 |
| Floor | 944.9 |
| Highest | 1444.9 (2026-10-01) |
| Min/Max +/- allowed | 117 |
Rapid rating
| Rating | 1284.6 |
| K-factor | 36 |
| Floor | 823.5 |
| Highest | 1323.5 (2026-06-01) |
| Min/Max +/- allowed | 139.1 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1284.6 |
| K-factor | 36 |
| Floor | 823.5 |
| Highest | 1323.5 (2026-06-01) |
| Min/Max +/- allowed | 139.1 |
Blitz rating
| Rating | 1200 |
| K-factor | 40 |
| Floor | 700 |
| Highest | 1199.9 (2026-05-01) |
| 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 | 40 |
| Floor | 700 |
| Highest | 1199.9 (2026-05-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Mpumalanga Closed Championship 2026 (U10 Boys) | Standard | 2026-09-26 | 2026-09-26 | Gert Sibande (MGS) | 5 | 1410.5 | 5 | 4 | 1505.2 | 13.9 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Emalahleni Spring Open 2026 (U9) | Standard | 2026-09-19 | 2026-09-20 | Nkangala (MNW) | 5 | 1404.5 | 5 | 4 | 1404.4 | 6.1 | Details |
| 2 | Mpumalanga Primary School Teams League 2026 (U9) | Rapid | 2026-08-22 | 2026-08-22 | Gert Sibande (MGS) | 5 | 1404.5 | 5 | 2.5 | 1038.5 | -31.6 | Details |
| 3 | 2026 Menlo Open (U10) | Standard | 2026-07-25 | 2026-07-25 | Tshwane (GTP) | 5 | 1404.5 | 5 | 3 | 1409.3 | 0.8 | Details |
| 4 | Rustique Chess Challenge 2026 (Rapid Bronze) | Rapid | 2026-07-01 | 2026-07-01 | Nkangala (MNW) | 5 | 1404.5 | 5 | 4.5 | 1623.9 | 10.2 | Details |
| 5 | 2026 Anton Van Wouw Open (U10) | Standard | 2026-06-20 | 2026-06-20 | Tshwane (GTP) | 5 | 1278.1 | 4 | 2 | 1332.2 | 10.6 | Details |
| 6 | Elise Steenkamp 2026 (Knight) | Standard | 2026-06-13 | 2026-06-14 | Tshwane (GTP) | 5 | 1278.1 | 5 | 3 | 1505.1 | 42.9 | Details |
| 7 | 2026 Prestige College Open (U10) | Standard | 2026-06-06 | 2026-06-06 | Tshwane (GTP) | 5 | 1278.1 | 5 | 5 | 1715.4 | 78.1 | Details |
| 8 | Midrand Chess Club - Classical Tournament 2026 (Primary School) | Standard | 2026-05-30 | 2026-05-30 | Johannesburg Metro (GJM) | 5 | 1278.1 | 5 | 3 | 1388.1 | 20.5 | Details |
| 9 | Middelburg Country Club 2026 (Rapid Rising Stars) | Rapid | 2026-05-09 | 2026-05-09 | Nkangala (MNW) | 6 | 1200 | 6 | 6 | 1646 | 78.1 | 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 | 50 |
| Wins | 36 |
| Draws | 2 |
| Losses | 12 |
| White | 23 |
| Black | 27 |
| White wins | 17 |
| Black wins | 19 |
| Score | 37 |
| Percent | 74 |
| Dp | 204 |
| AOR | 1259.1 |
| Performance | 1463.1 |
Game statistics (History)
| Games | 50 |
| Wins | 36 |
| Draws | 2 |
| Losses | 12 |
| White | 23 |
| Black | 27 |
| White wins | 17 |
| Black wins | 19 |
| Score | 37 |
| Percent | 74 |
| Dp | 204 |
| AOR | 1259.1 |
| Performance | 1463.1 |
Rankings (Main)
| National | |
| Overall | 3378 |
| Gender | 2869 |
| Age group | 146 |
| Gender/Age | 120 |
| Provincial | |
| Overall | 88 |
| Gender | 82 |
| Age group | 2 |
| Gender/Age | 2 |
| Regional | |
| Overall | 18 |
| Gender | 17 |
| Age group | 2 |
| Gender/Age | 2 |
Rankings (Standard)
| National | |
| Overall | 2625 |
| Gender | 2211 |
| Age group | 110 |
| Gender/Age | 89 |
| Provincial | |
| Overall | 66 |
| Gender | 62 |
| Age group | 2 |
| Gender/Age | 2 |
| Regional | |
| Overall | 13 |
| Gender | 12 |
| Age group | 2 |
| Gender/Age | 2 |
Rankings (Rapid)
| National | |
| Overall | 2386 |
| Gender | 1948 |
| Age group | 145 |
| Gender/Age | 116 |
| Provincial | |
| Overall | 109 |
| Gender | 93 |
| Age group | 4 |
| Gender/Age | 3 |
| Regional | |
| Overall | 31 |
| Gender | 27 |
| Age group | 2 |
| Gender/Age | 2 |
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 | 50 |
| Score | 37 |
| Percent | 74 |
| Aor | 1259.1 |
| Dp | 204 |
| Prat | 1463.1 |
Performance (12 months)
| Games | 50 |
| Score | 37 |
| Percent | 74 |
| Aor | 1259.1 |
| Dp | 204 |
| Prat | 1463.1 |
Performance (History)
| Games | 50 |
| Score | 37 |
| Percent | 74 |
| Aor | 1259.1 |
| Dp | 204 |
| Prat | 1463.1 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Greeff, A (Andreas Christoffel) | 2 | 1 | 1 | 2026 Anton Van Wouw Open (U10) | 2026 Menlo Open (U10) | Details |
| Overall | 2 | Buys, D (Daniel) | 2 | 1 | 1 | Middelburg Country Club 2026 (Rapid Rising Stars) | Rustique Chess Challenge 2026 (Rapid Bronze) | Details |
| Standard | 1 | Greeff, A (Andreas Christoffel) | 2 | 1 | 1 | 2026 Anton Van Wouw Open (U10) | 2026 Menlo Open (U10) | Details |
| Rapid | 1 | Buys, D (Daniel) | 2 | 1 | 1 | Middelburg Country Club 2026 (Rapid Rising Stars) | Rustique Chess Challenge 2026 (Rapid Bronze) | Details |