PLAYER PAGE
Personal
Koch, N (Natalee)
Chess SA id
2110314036FIDE id
534034579Date of birth
2011-08-17 (U16)Gender
FemaleRegion
Bojanala Platina (NBR)Citizen
RSATitles
Chess SA registered
YesLast active game
2025-12-20Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1179.2 | 1174.2 | 1200 | 1184.8 |
| Raw rating | 1042.8 | 1011.2 | 1200 | 1133.8 |
| Weighted rating | 1179.2 | 1174.2 | 1200 | 1184.8 |
| Weighted performance | 1034.8 | 1013 | 0 | 0 |
| Floor | 700 | 700 | 700 | 700 |
| K-factor | 40 | 40 | 36 | 36 |
| Min/Max rating change allowed | 207.5 | 217 | 165.8 | 182.2 |
| Highest rating | 12002025-03-01 | 12002025-03-01 | 12002025-02-01 | 12002025-02-01 |
| Highest raw rating | 12002025-03-01 | 12002025-03-01 | 12002025-02-01 | 12002025-02-01 |
| Highest weighted rating | 12002025-03-01 | 12002025-03-01 | 12002025-02-01 | 12002025-02-01 |
| Highest weighted performance | 1053.72025-11-01 | 1025.52025-11-30 | 01900-01-01 | 01900-01-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | -11.7 | -14 | 0 | -4.6 |
| New rating | 1167.5 | 1160.2 | 1200 | 1180.1 |
| Analysis | ||||
| Rating | 1179.2 | 1174.2 | 1200 | 1184.8 |
| Raw rating | 1042.8 | 1011.2 | 1200 | 1133.8 |
| Weighted rating | 1179.2 | 1174.2 | 1200 | |
| Weighted performance | 1034.8 | 1013 | 0 | |
| K-factor | 40 | 40 | 36 | 36 |
| Floor | 700 | 700 | 700 | 700 |
| Max/Min rating change allowed | 207.5 | 217 | 165.8 | 182.2 |
| Games | 0 | 0 | 0 | 0 |
| Score | 0 | 0 | 0 | 0 |
| Expected score | 0 | 0 | 0 | 0 |
| Score-Expected | 0 | 0 | 0 | 0 |
| Temp raw +/- | 0 | 0 | 0 | 0 |
| Final raw +/- | 0 | 0 | 0 | 0 |
| New raw rating | 1042.8 | 1011.2 | 1200 | 1133.8 |
| New weighted rating | 1167.5 | 1160.2 | 1200 | 1180.1 |
| New weighted performance | 1028 | 1006.3 | 0 | 0 |
| Temp new rating | 1167.5 | 1160.2 | 1200 | 1180.1 |
| Temp new rating +/- | -11.7 | -14 | 0 | -4.6 |
| Final new rating +/- | -11.7 | -14 | 0 | -4.6 |
| New rating | 1167.5 | 1160.2 | 1200 | 1180.1 |
| New K-factor | 40 | 40 | 36 | 36 |
| New floor | 700 | 700 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 31 | 23 | 0 | 8 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 31 | 23 | 0 | 8 |
| Games since | |||||||||||||||||
| Main31 | Standard23 | Rapid0 | Blitz8 | ||||||||||||||
| Gender | Female | ||||||||||||||||
| Age group | U16 | ||||||||||||||||
| Region | Bojanala Platina (NBR) | ||||||||||||||||
| Province | Northwest (NW) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Female | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Female | -1 | -1 | -1 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Female | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Female | -1 | -1 | -1 | ||||||||||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 0 | 0 | 0 | 0 | 0 | 0 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 31 | 9 | 29.03 | -178.2 | 1326 | 1147.7 |
| Standard | 23 | 7 | 30.43 | -166.3 | 1291.3 | 1125 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 8 | 2 | 25 | -212.5 | 1425.5 | 1213 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 31 | 9 | 29.03 | -178.2 | 1326 | 1147.7 |
| Standard | 23 | 7 | 30.43 | -166.3 | 1291.3 | 1125 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 8 | 2 | 25 | -212.5 | 1425.5 | 1213 |
| Date | Main | Standard | Rapid | Blitz |
| 2026-01-01 | 1042.8 | 1011.2 | 1200 | 1133.8 |
| 2025-11-30 | 1132 | 1111.2 | 1200 | 1133.8 |
| 2025-11-01 | 1159.2 | 1147.2 | 1200 | 1133.8 |
| 2025-09-30 | 1200 | 1200 | 1200 | 1200 |
| 2025-09-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-08-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-07-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-06-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-05-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-04-01 | 1199.9 | 1199.8 | 1200 | 1200 |
| 2025-03-01 | 1200 | 1200 | 1200 | 1200 |
| 2025-02-01 | 1199.9 | 1199.9 | 1200 | 1200 |
| 2025-01-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-12-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-11-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-10-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-09-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-11-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-07-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-06-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-05-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-04-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-03-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-02-01 | 1200 | 1200 | 1200 | 1200 |
Comming soon.
Tournaments
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Mzansi Individual Championships (U16 Girls) | 2025-12-17 | 2025-12-20 | Standard | Nelson Mandela Bay (ENM) | 6 | 6 | 1 | Yes | Analysis |
| 2 | 2025 Mzansi Inter Provincial Team Championships (U18 Girls) | 2025-12-15 | 2025-12-16 | Standard | Nelson Mandela Bay (ENM) | 5 | 4 | 0 | Yes | Analysis |
| 3 | 2025 Mzansi Inter Provincial Team Championships (U16 Girls) | 2025-12-15 | 2025-12-17 | Standard | Nelson Mandela Bay (ENM) | 6 | 0 | 0 | No | Analysis |
| 4 | Bojanala's Merry ChessMas 2025 (Knights) | 2025-11-29 | 2025-11-29 | Standard | Bojanala Platina (NBR) | 5 | 5 | 2 | Yes | Analysis |
| 5 | Bojanala's Circuit Championships 4 of 4 2025 (U16) | 2025-11-01 | 2025-11-01 | Standard | Bojanala Platina (NBR) | 5 | 5 | 1 | Yes | Analysis |
| 6 | Bojanala's Kings & Queens 2025 (Blitz) | 2025-10-25 | 2025-10-25 | Blitz | Bojanala Platina (NBR) | 9 | 8 | 2 | Yes | Analysis |
| 7 | Bojanala's Battle Of Mount Cambridge 2025 (Knights) | 2025-10-11 | 2025-10-11 | Standard | Bojanala Platina (NBR) | 5 | 4 | 0 | Yes | Analysis |
| 8 | Bojanala's Waterkloof - The Superior One 2025 (Knights) | 2025-03-15 | 2025-03-15 | Standard | Bojanala Platina (NBR) | 5 | 5 | 2.5 | Yes | Analysis |
| 9 | Bojanala Circuit Championships 1 of 4 2025 (U16) | 2025-03-01 | 2025-03-01 | Standard | Bojanala Platina (NBR) | 5 | 4 | 1 | Yes | Analysis |
| 10 | Bojanala Wildcard 2025 (Development) | 2025-01-25 | 2025-01-25 | Standard | Bojanala Platina (NBR) | 5 | 5 | 2.5 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentBojanala Circuit Championships 1 of 4 2025 | TournamentBojanala's Waterkloof - The Superior One 2025 | ||||||
| date2025-03-01 | rnd5 | typeStandard | result1 | date2025-03-15 | rnd2 | typeStandard | result0.5 | ||
| OpponentMakgale, G (Gomolemo) | OpponentMonare, O (Oreratile) | ||||||||
| 2 | 3 | TournamentBojanala Wildcard 2025 | TournamentBojanala Wildcard 2025 | ||||||
| date2025-01-25 | rnd3 | typeStandard | result0.5 | date2025-01-25 | rnd5 | typeStandard | result1 | ||
| OpponentWeidemann, Z (Zeany) | OpponentAhlers, T (Theo) | ||||||||
| 3 | 1 | TournamentBojanala's Kings & Queens 2025 | TournamentBojanala's Kings & Queens 2025 | ||||||
| date2025-10-25 | rnd8 | typeBlitz | result1 | date2025-10-25 | rnd8 | typeBlitz | result1 | ||
| OpponentLocherenberg, J (Jason) | OpponentLocherenberg, J (Jason) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentBojanala Circuit Championships 1 of 4 2025 | TournamentBojanala's Waterkloof - The Superior One 2025 | ||||||
| date2025-03-01 | rnd5 | typeStandard | result1 | date2025-03-15 | rnd2 | typeStandard | result0.5 | ||
| OpponentMakgale, G (Gomolemo) | OpponentMonare, O (Oreratile) | ||||||||
| 2 | 3 | TournamentBojanala Wildcard 2025 | TournamentBojanala Wildcard 2025 | ||||||
| date2025-01-25 | rnd3 | typeStandard | result0.5 | date2025-01-25 | rnd5 | typeStandard | result1 | ||
| OpponentWeidemann, Z (Zeany) | OpponentAhlers, T (Theo) | ||||||||
| 3 | 1 | TournamentBojanala's Waterkloof - The Superior One 2025 | TournamentBojanala's Waterkloof - The Superior One 2025 | ||||||
| date2025-03-15 | rnd5 | typeStandard | result1 | date2025-03-15 | rnd5 | typeStandard | result1 | ||
| OpponentMdaka, K (Khwatsi) | OpponentMdaka, K (Khwatsi) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentBojanala Circuit Championships 1 of 4 2025 | TournamentBojanala's Waterkloof - The Superior One 2025 | ||||||
| date2025-03-01 | rnd5 | typeStandard | result1 | date2025-03-15 | rnd1 | typeStandard | result1 | ||
| OpponentMakgale, G (Gomolemo) | OpponentKotsokoane, R (Reotshepile) | ||||||||
| 2 | 2 | TournamentBojanala Wildcard 2025 | TournamentBojanala Wildcard 2025 | ||||||
| date2025-01-25 | rnd4 | typeStandard | result1 | date2025-01-25 | rnd5 | typeStandard | result1 | ||
| OpponentVenter, T (Trenton) | OpponentAhlers, T (Theo) | ||||||||
| 3 | 1 | TournamentBojanala's Waterkloof - The Superior One 2025 | TournamentBojanala's Waterkloof - The Superior One 2025 | ||||||
| date2025-03-15 | rnd5 | typeStandard | result1 | date2025-03-15 | rnd5 | typeStandard | result1 | ||
| OpponentMdaka, K (Khwatsi) | OpponentMdaka, K (Khwatsi) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentBojanala Circuit Championships 1 of 4 2025 | TournamentBojanala's Waterkloof - The Superior One 2025 | ||||||
| date2025-03-01 | rnd5 | typeStandard | result1 | date2025-03-15 | rnd1 | typeStandard | result1 | ||
| OpponentMakgale, G (Gomolemo) | OpponentKotsokoane, R (Reotshepile) | ||||||||
| 2 | 2 | TournamentBojanala Wildcard 2025 | TournamentBojanala Wildcard 2025 | ||||||
| date2025-01-25 | rnd4 | typeStandard | result1 | date2025-01-25 | rnd5 | typeStandard | result1 | ||
| OpponentVenter, T (Trenton) | OpponentAhlers, T (Theo) | ||||||||
| 3 | 1 | TournamentBojanala's Waterkloof - The Superior One 2025 | TournamentBojanala's Waterkloof - The Superior One 2025 | ||||||
| date2025-03-15 | rnd5 | typeStandard | result1 | date2025-03-15 | rnd5 | typeStandard | result1 | ||
| OpponentMdaka, K (Khwatsi) | OpponentMdaka, K (Khwatsi) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
Top 10 opponents most often played
| # | Opponent | Main | Standard | Rapid | Blitz | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | ||
| Aor | Prat | Aor | Prat | Aor | Prat | Aor | Prat | ||||||
| 1 | Terblanche ,J (Johann) | 2 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 |
| 1541.5 | 1116.5 | 1496.4 | 1116.5 | 0 | 0 | 1200 | 1116.5 | ||||||
| 2 | Mokone ,R (Remoabetswe Kgotla) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1519.8 | 1094.8 | 1506.6 | 1094.8 | 0 | 0 | 0 | 0 | ||||||
| 3 | Weidemann ,Z (Zeany) | 1 | 0.5 | 0 | 1 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1200 | 1200 | 1200 | 0 | 0 | 0 | 0 | ||||||
| 4 | Van Wyk ,W (Willem) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1228 | 803 | 1236.4 | 803 | 0 | 0 | 0 | 0 | ||||||
| 5 | Toughey ,D (Dylan) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1391.5 | 966.5 | 1398.3 | 966.5 | 0 | 0 | 0 | 0 | ||||||
| 6 | Timba ,J (Junior) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1150.4 | 725.4 | 1138.9 | 725.4 | 0 | 0 | 0 | 0 | ||||||
| 7 | Makgale ,G (Gomolemo) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 8 | Kotsokoane ,R (Reotshepile) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1316.3 | 1741.3 | 1315.6 | 1741.3 | 0 | 0 | 0 | 0 | ||||||
| 9 | Mdaka ,K (Khwatsi) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 10 | Changara ,A (Adiel Tavonga) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1495 | 1070 | 1490.7 | 1070 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|

