PLAYER PAGE
Nathan Dean Bosman
1160159457Sedibeng (GSV)Personal
Main rating
| Rating | 1404.6 |
| K-factor | 32 |
| Floor | 921 |
| Highest | 1421 (2026-06-01) |
| Min/Max +/- allowed | 121 |
| Rating Change () | |
| Games | 5 |
| Score | 1.5 |
| We | 1.69 |
| SWe | -0.16 |
| Temp +/- | -5.2 |
| Penalties | 0 |
| Weight perform | 1369.9 |
| Final +/- | -5.2 |
| New Rating () | |
| Rating | 1399.5 |
| K-factor | 32 |
| Floor | 921 |
| Highest | 1421 (2026-06-01) |
| Min/Max +/- allowed | 121 |
Standard rating
| Rating | 1421 |
| K-factor | 32 |
| Floor | 921 |
| Highest | 1421 (2026-06-01) |
| Min/Max +/- allowed | 121 |
| Rating Change () | |
| Games | 5 |
| Score | 1.5 |
| We | 1.74 |
| SWe | -0.24 |
| Temp +/- | -7.5 |
| Penalties | 0 |
| Weight perform | 1369.9 |
| Final +/- | -7.5 |
| New Rating () | |
| Rating | 1413.4 |
| K-factor | 32 |
| Floor | 921 |
| Highest | 1421 (2026-06-01) |
| Min/Max +/- allowed | 121 |
Rapid rating
| Rating | 1186.6 |
| K-factor | 36 |
| Floor | 703.6 |
| Highest | 1203.6 (2024-12-01) |
| Min/Max +/- allowed | 165 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1186.6 |
| K-factor | 36 |
| Floor | 703.6 |
| Highest | 1203.6 (2024-12-01) |
| Min/Max +/- allowed | 165 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| 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 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Gauteng Closed Chess Championships 2026 (U12 Open) | Standard | 2026-10-17 | 2026-10-17 | Ekurhuleni (GE) | 5 | 1404.6 | 5 | 1.5 | 1380.1 | -5.2 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | D7 (Sedibeng East) Schools Team Championships 2026 (U11) | Rapid | 2026-08-15 | 2026-08-15 | Sedibeng (GSV) | 5 | 1404.6 | 3 | 1 | 1213.2 | -16.3 | Details |
| 2 | D7 Sedibeng East Individuals League 2026 (U11 Boys) | Standard | 2026-05-23 | 2026-05-23 | Sedibeng (GSV) | 5 | 1350.6 | 5 | 3 | 1402 | 10.4 | Details |
| 3 | Fundraiser for Philip and Anika 09 May 2026 (E) | Standard | 2026-05-09 | 2026-05-09 | Sedibeng (GSV) | 5 | 1350.6 | 5 | 4 | 1534.1 | 31.1 | Details |
| 4 | Hoerskool Drie Riviere Chess Open 07 March 2026 (E) | Standard | 2026-03-07 | 2026-03-07 | Sedibeng (GSV) | 5 | 1298.4 | 5 | 3 | 1392.6 | 14.4 | Details |
| 5 | Gauteng Inter-Region at Emerald Resort 2025 (U10 Championship) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1250.8 | 5 | 3 | 1446.9 | 20.7 | Details |
| 6 | GDE (D7) Sedibeng East Schools 2025 (U9+U11) | Standard | 2025-08-02 | 2025-08-02 | Sedibeng (GSV) | 5 | 1190.2 | 5 | 4 | 1515.7 | 32.4 | Details |
| 7 | Eureka Chess Open 26 July 2025 (H) | Standard | 2025-07-26 | 2025-07-26 | Sedibeng (GSV) | 5 | 1177.5 | 5 | 2 | 1244.7 | 7.1 | Details |
| 8 | GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U9) | Standard | 2025-05-24 | 2025-05-24 | Sedibeng (GSV) | 5 | 1158 | 5 | 3 | 1276.2 | 10.8 | Details |
| 9 | Destinata Rapid Open 025 (E+F) | Rapid | 2025-03-15 | 2025-03-15 | Sedibeng (GSV) | 6 | 1155.2 | 5 | 2 | 1263.7 | 8 | Details |
| 10 | Laerskool Vaalpark Open 01 March 25 (F) | Standard | 2025-03-01 | 2025-03-01 | Sedibeng (GSV) | 5 | 1155.2 | 4 | 1 | 1074.5 | -6.5 | Details |
| 11 | Laer Volkskool Open 15 Feb 2025 (F) | Standard | 2025-02-15 | 2025-02-15 | Sedibeng (GSV) | 5 | 1153.5 | 4 | 1 | 1114.3 | -3.2 | Details |
| 12 | Gauteng Inter-Region at UJ 2024 (U10 Candidates) | Standard | 2024-12-07 | 2024-12-08 | Johannesburg Metro (GJM) | 5 | 1127.1 | 5 | 2 | 1044.7 | -9.8 | Details |
| 13 | Laerskool Midvaal Rapid 16 Nov 2024 (E) | Rapid | 2024-11-16 | 2024-11-16 | Sedibeng (GSV) | 5 | 1091.7 | 5 | 3 | 1380 | 19.8 | Details |
| 14 | Heidelberg Open 05 October 2024 (E) | Standard | 2024-10-05 | 2024-10-05 | Sedibeng (GSV) | 5 | 1173.9 | 4 | 0 | 818.3 | -27.9 | Details |
| 15 | Gauteng Top Schools 2024 (U9 Open) | Standard | 2024-10-04 | 2024-10-04 | Ekurhuleni (GE) | 5 | 1173.9 | 5 | 1 | 1000.1 | -17.8 | Details |
| 16 | Sedibeng East D7 Teams Trials 2024 (U9) | Standard | 2024-08-03 | 2024-08-03 | Sedibeng (GSV) | 6 | 1148.8 | 6 | 3 | 1269.4 | 13.9 | Details |
| 17 | Eureka Open 27 July 2024 (H) | Standard | 2024-07-27 | 2024-07-27 | Sedibeng (GSV) | 5 | 1158.5 | 5 | 2 | 1125.5 | -2.7 | Details |
| 18 | Midvaal Winter Classic 13 July 2024 (F) | Rapid | 2024-07-13 | 2024-07-13 | Sedibeng (GSV) | 7 | 1158.5 | 7 | 3 | 1125.2 | -2.8 | Details |
| 19 | AG Visser Open 2024 (E) | Standard | 2024-06-08 | 2024-06-08 | Sedibeng (GSV) | 5 | 1134.9 | 5 | 3 | 1278.4 | 13.1 | Details |
| 20 | Vaalpark Primary Chess Open 2024 (E) | Standard | 2024-04-13 | 2024-04-13 | Sedibeng (GSV) | 5 | 1187.2 | 5 | 1.5 | 1011.1 | -16.4 | Details |
| 21 | HS Drie Riviere Chess Open Section 2024 (E) | Standard | 2024-03-09 | 2024-03-09 | Sedibeng (GSV) | 5 | 1187.2 | 5 | 2 | 1066.2 | -12.6 | Details |
| 22 | 2023 Gauteng Top Schools (U9 Mixed) | Standard | 2023-08-18 | 2023-08-18 | West Rand (GWR) | 5 | 1200 | 4 | 1 | 987.5 | -16.6 | Details |
| 23 | Gauteng D7 Teams 2023 (U9) | Standard | 2023-08-12 | 2023-08-12 | Sedibeng (GSV) | 5 | 1200 | 5 | 3 | 1290.6 | 9.5 | Details |
Game statistics ( )
| Games | 5 |
| Wins | 1 |
| Draws | 1 |
| Losses | 3 |
| White | 3 |
| Black | 2 |
| White wins | 0 |
| Black wins | 1 |
| Score | 1.5 |
| Percent | 30 |
| Dp | -170 |
| AOR | 1550.1 |
| Performance | 1380.1 |
Game statistics ()
| Games | 23 |
| Wins | 12 |
| Draws | 1 |
| Losses | 10 |
| White | 12 |
| Black | 11 |
| White wins | 7 |
| Black wins | 5 |
| Score | 12.5 |
| Percent | 54.3 |
| Dp | 37 |
| AOR | 1362.4 |
| Performance | 1399.3 |
Game statistics (History)
| Games | 117 |
| Wins | 52 |
| Draws | 2 |
| Losses | 63 |
| White | 59 |
| Black | 58 |
| White wins | 29 |
| Black wins | 23 |
| Score | 53 |
| Percent | 45.3 |
| Dp | -40 |
| AOR | 1265.4 |
| Performance | 1225.4 |
Rankings (Main)
| National | |
| Overall | 3507 |
| Gender | 2970 |
| Age group | 326 |
| Gender/Age | 255 |
| Provincial | |
| Overall | 1211 |
| Gender | 1028 |
| Age group | 115 |
| Gender/Age | 94 |
| Regional | |
| Overall | 127 |
| Gender | 112 |
| Age group | 14 |
| Gender/Age | 13 |
Rankings (Standard)
| National | |
| Overall | 2803 |
| Gender | 2352 |
| Age group | 258 |
| Gender/Age | 201 |
| Provincial | |
| Overall | 1004 |
| Gender | 853 |
| Age group | 90 |
| Gender/Age | 74 |
| Regional | |
| Overall | 102 |
| Gender | 92 |
| Age group | 11 |
| Gender/Age | 11 |
Rankings (Rapid)
| National | |
| Overall | 4875 |
| Gender | 3776 |
| Age group | 835 |
| Gender/Age | 622 |
| Provincial | |
| Overall | 1181 |
| Gender | 916 |
| Age group | 162 |
| Gender/Age | 123 |
| Regional | |
| Overall | 251 |
| Gender | 202 |
| Age group | 16 |
| Gender/Age | 15 |
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 | 5 |
| Score | 1.5 |
| Percent | 30 |
| Aor | 1550.1 |
| Dp | -170 |
| Prat | 1380.1 |
Performance ()
| Games | 23 |
| Score | 12.5 |
| Percent | 54.3 |
| Aor | 1362.4 |
| Dp | 37 |
| Prat | 1399.3 |
Performance (12 months)
| Games | 28 |
| Score | 15.5 |
| Percent | 55.4 |
| Aor | 1362.3 |
| Dp | 45.5 |
| Prat | 1407.8 |
Performance (History)
| Games | 117 |
| Score | 53 |
| Percent | 45.3 |
| Aor | 1265.4 |
| Dp | -40 |
| Prat | 1225.4 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Tshoeu, B (Bogosi) | 8 | 3 | 5 | Gauteng D7 Teams 2023 (U9) | D7 (Sedibeng East) Schools Team Championships 2026 (U11) | Details |
| Overall | 2 | Abdul, MA (Muhammed Ayaan) | 5 | 4 | 1 | AG Visser Open 2024 (E) | GDE (D7) Sedibeng East Schools 2025 (U9+U11) | Details |
| Overall | 3 | Swarts, C (Ciara) | 4 | 1 | 3 | HS Drie Riviere Chess Open Section 2024 (E) | Heidelberg Open 05 October 2024 (E) | Details |
| Overall | 4 | Martin, S (Sebastian) | 4 | 3 | 1 | Sedibeng East D7 Teams Trials 2024 (U9) | Heidelberg Open 05 October 2024 (E) | Details |
| Overall | 5 | Strydom, G (Graceson) | 4 | 2 | 2 | AG Visser Open 2024 (E) | GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U9) | Details |
| Standard | 1 | Tshoeu, B (Bogosi) | 6 | 2 | 4 | Gauteng D7 Teams 2023 (U9) | Fundraiser for Philip and Anika 09 May 2026 (E) | Details |
| Standard | 2 | Abdul, MA (Muhammed Ayaan) | 5 | 4 | 1 | AG Visser Open 2024 (E) | GDE (D7) Sedibeng East Schools 2025 (U9+U11) | Details |
| Standard | 3 | Martin, S (Sebastian) | 4 | 3 | 1 | Sedibeng East D7 Teams Trials 2024 (U9) | Heidelberg Open 05 October 2024 (E) | Details |
| Standard | 4 | Swarts, C (Ciara) | 3 | 1 | 2 | HS Drie Riviere Chess Open Section 2024 (E) | Heidelberg Open 05 October 2024 (E) | Details |
| Standard | 5 | Madibana, M (Mohau) | 3 | 1 | 2 | HS Drie Riviere Chess Open Section 2024 (E) | Eureka Open 27 July 2024 (H) | Details |
| Rapid | 1 | Tshoeu, B (Bogosi) | 2 | 1 | 1 | Laerskool Midvaal Rapid 16 Nov 2024 (E) | D7 (Sedibeng East) Schools Team Championships 2026 (U11) | Details |
| Rapid | 2 | Strydom, G (Graceson) | 2 | 1 | 1 | Laerskool Midvaal Rapid 16 Nov 2024 (E) | Destinata Rapid Open 025 (E+F) | Details |