Surname or Chess SA id..
Chess SA Region AOC Mzansi 2026

PLAYER PAGE

Nathan Dean Bosman

1160159457
Sedibeng (GSV)
Personal
Main rating
Rating 1404.6
K-factor 32
Floor 921
Highest 1421 (2026-06-01)
Min/Max +/- allowed 121
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1379.3
Final +/- 0
New Rating
()
Rating 1404.6
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 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1379.3
Final +/- 0
New Rating
()
Rating 1421
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
No tournaments found.
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- 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 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 18
Wins 11
Draws 0
Losses 7
White 9
Black 9
White wins 7
Black wins 4
Score 11
Percent 61.1
Dp 94.4
AOR 1310.2
Performance 1404.7
Game statistics (History)
Games 112
Wins 51
Draws 1
Losses 60
White 56
Black 56
White wins 29
Black wins 22
Score 51.5
Percent 46
Dp -34.2
AOR 1252.7
Performance 1218.5
Rankings (Main)
National
Overall 3517
Gender 2979
Age group 331
Gender/Age 263
Provincial
Overall 1222
Gender 1036
Age group 116
Gender/Age 95
Regional
Overall 129
Gender 114
Age group 14
Gender/Age 13
Rankings (Standard)
National
Overall 2821
Gender 2373
Age group 261
Gender/Age 204
Provincial
Overall 1028
Gender 873
Age group 91
Gender/Age 74
Regional
Overall 104
Gender 93
Age group 11
Gender/Age 11
Rankings (Rapid)
National
Overall 4961
Gender 3832
Age group 843
Gender/Age 626
Provincial
Overall 1185
Gender 915
Age group 160
Gender/Age 122
Regional
Overall 241
Gender 192
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 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 18
Score 11
Percent 61.1
Aor 1310.2
Dp 94.4
Prat 1404.7
Performance (12 months)
Games 23
Score 14
Percent 60.9
Aor 1321.4
Dp 92.4
Prat 1413.8
Performance (History)
Games 112
Score 51.5
Percent 46
Aor 1252.7
Dp -34.2
Prat 1218.5
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 Strydom, G (Graceson) 4 2 2 AG Visser Open 2024 (E) GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U9) Details
Overall 4 Swarts, C (Ciara) 4 1 3 HS Drie Riviere Chess Open Section 2024 (E) Heidelberg Open 05 October 2024 (E) Details
Overall 5 Martin, S (Sebastian) 4 3 1 Sedibeng East D7 Teams Trials 2024 (U9) Heidelberg Open 05 October 2024 (E) 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