Player Page

Khumalo, KB (Keith)
Dob: 2001/04/26 (Adult)
Gender: Male
Chess SA id: 101015487
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s): CM
Last active: 2024/07/07 (7 days ago)
Ratings
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating2171.9
Current Weighted rating2165.2
Current Weighted performance2117.6
Current official/published rating (highest between Raw, WR and WP)2171.9
Current highest rating achieved2235.1
Current floor (min rating allowed)1735.1
Current K-factor16
Games played this month22
Score (S)16.5
Expected score (We)16.40
Difference (S-We)0.97
Current Raw change (no limits, including tournament time weight)15.5
Current min/max change allowed (with limits)±41.5
Current Raw change used (final)15.5
Projected new Raw rating2187.4
Projected new Weighed rating1993.1
Projected new Weighted performance2092.2
Projected new final Raw rating (if new WP > new Raw)2187.4
Projected new highest rating2235.1
Projected new floor1735.1
Projected new K-facor16
Projected new official/published rating (highest between new Raw, new WR and new WP)2187.4
Projected effective change (new Official - current Official)+15.5
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating2182.6
Current Weighted rating2162.0
Current Weighted performance2117.6
Current official/published rating (highest between Raw, WR and WP)2182.6
Current highest rating achieved2241.3
Current floor (min rating allowed)1741.3
Current K-factor16
Games played this month11
Score (S)8.5
Expected score (We)7.29
Difference (S-We)1.21
Current Raw change (no limits, including tournament time weight)19.4
Current min/max change allowed (with limits)±40.9
Current Raw change used (final)19.4
Projected new Raw rating2202.0
Projected new Weighed rating1990.2
Projected new Weighted performance2166.1
Projected new final Raw rating (if new WP > new Raw)2202.0
Projected new highest rating2241.3
Projected new floor1741.3
Projected new K-facor16
Projected new official/published rating (highest between new Raw, new WR and new WP)2202.0
Projected effective change (new Official - current Official)+19.4
s
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating2220.9
Current Weighted rating2156.7
Current Weighted performance2013.4
Current official/published rating (highest between Raw, WR and WP)2220.9
Current highest rating achieved2220.9
Current floor (min rating allowed)1720.9
Current K-factor16
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±38.7
Current Raw change used (final)0.0
Projected new Raw rating2220.9
Projected new Weighed rating1986.7
Projected new Weighted performance2013.4
Projected new final Raw rating (if new WP > new Raw)2220.9
Projected new highest rating2220.9
Projected new floor1720.9
Projected new K-facor16
Projected new official/published rating (highest between new Raw, new WR and new WP)2220.9
Projected effective change (new Official - current Official)=0.0
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating2258.5
Current Weighted rating2206.7
Current Weighted performance1925.4
Current official/published rating (highest between Raw, WR and WP)2258.5
Current highest rating achieved2264.5
Current floor (min rating allowed)1764.5
Current K-factor16
Games played this month11
Score (S)8.0
Expected score (We)10.02
Difference (S-We)-2.02
Current Raw change (no limits, including tournament time weight)-32.3
Current min/max change allowed (with limits)±36.7
Current Raw change used (final)-32.3
Projected new Raw rating2226.2
Projected new Weighed rating2031.8
Projected new Weighted performance1966.9
Projected new final Raw rating (if new WP > new Raw)2226.2
Projected new highest rating2264.5
Projected new floor1764.5
Projected new K-facor16
Projected new official/published rating (highest between new Raw, new WR and new WP)2226.2
Projected effective change (new Official - current Official)-32.3
Tournaments
Tournament: South African Open Chess Championship 2024 (Blitz)
Start: 2024/07/04  End: 2024/07/04  Host: KED  Type: Blitz   Time: 5  Time weight: 0.18  Rounds: 11
Games: 11  Score: 8.0
Main rating: 2171.9  Rating gain/loss: -3.1
Type rating: 2258.5  Rating gain/loss: -32.3
Analysis
Tournament: South African Open Chess Championship 2024 (A)
Start: 2024/06/29  End: 2024/07/07  Host: KED  Type: Standard   Time: 120  Time weight: 1.00  Rounds: 11
Games: 11  Score: 8.5
Main rating: 2171.9  Rating gain/loss: 18.6
Type rating: 2182.6  Rating gain/loss: 19.4
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
19 South African Open Chess Championship 2024 (Blitz) 2024/07/04 2024/07/04 Ethekwini (KED) Blitz 5 0.18 11 11 8.0 2171.9 2258.5 Analysis
18 South African Open Chess Championship 2024 (A) 2024/06/29 2024/07/07 Ethekwini (KED) Standard 120 1.00 11 11 8.5 2171.9 2182.6 Analysis
17 Chess Power House June Open 2024 (A) 2024/06/23 2024/06/23 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 2169.4 2178.9 Analysis
16 2024 Elise Steenkamp Open Chess Tournament (Kings) 2024/06/15 2024/06/17 Tshwane (GTP) Standard 90 0.94 7 7 6.0 2169.4 2178.9 Analysis
15 JMC Trinityhouse Little Falls 2024 (A) 2024/06/02 2024/06/02 Johannesburg Metro (GJM) Standard 60 0.83 5 4 3.0 2169.4 2178.9 Analysis
14 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (Prestige) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 5 3.5 2169.4 2178.9 Analysis
13 10th Piet van Zyl Chess Festival 2024 (A+B) 2024/05/24 2024/05/25 Mangaung (FMB) Standard 90 0.94 5 5 4.5 2192.3 2206.4 Analysis
12 JMC Crawford International Sandton 2024 (A) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 4 2.5 2192.3 2206.4 Analysis
11 JMC Helpmekaar Kollege Tournament 2024 (A) 2024/05/04 2024/05/04 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 2192.3 2206.4 Analysis
10 2024 Ethekwini Open (A) 2024/04/20 2024/04/21 Ethekwini (KED) Standard 60 0.83 6 6 6.0 2228.2 2234.9 Analysis
9 UFH Open 2024 (A) 2024/04/13 2024/04/14 Amathole (EAL) Standard 90 0.94 7 7 6.0 2228.2 2234.9 Analysis
8 South African Closed Chess Championship 2024 (Open) 2024/03/25 2024/04/02 Cape Town (WCT) Standard 150 1.00 11 11 2.5 2228.2 2234.9 Analysis
7 Wanderers Blitz Tournament 2024 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Blitz 8 0.25 9 9 7.0 2235.1 2264.5 Analysis
6 JNW Open - Classic - Crawford 2024 (A) 2024/03/09 2024/03/09 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 2235.1 2241.3 Analysis
5 JMC Unika School Tournament 2024 (A) 2024/03/02 2024/03/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 2235.1 2241.3 Analysis
4 Gear Up Mzansi Rapid 2024 (Expert) 2024/02/17 2024/02/17 Johannesburg Metro (GJM) Rapid 35 0.66 5 5 4.5 2222.5 2204.9 Analysis
3 JMC Kick Off Tournament 2024 (A) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.5 2202.6 2198.9 Analysis
2 2024 Tshwane Chess OPEN Registration Tournament (Prestige) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 3.5 2202.6 2198.9 Analysis
1 2024 Gauteng Inter-Region Chess Championship (Adult A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 2202.6 2198.9 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
152 South African Open Chess Championship 2024 (Blitz) 2024/07/04 2024/07/04 Ethekwini (KED) Blitz 5 0.18 11 11 8.0 2171.9 2258.5 Analysis
151 South African Open Chess Championship 2024 (A) 2024/06/29 2024/07/07 Ethekwini (KED) Standard 120 1.00 11 11 8.5 2171.9 2182.6 Analysis
150 Chess Power House June Open 2024 (A) 2024/06/23 2024/06/23 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 2169.4 2178.9 Analysis
149 2024 Elise Steenkamp Open Chess Tournament (Kings) 2024/06/15 2024/06/17 Tshwane (GTP) Standard 90 0.94 7 7 6.0 2169.4 2178.9 Analysis
148 JMC Trinityhouse Little Falls 2024 (A) 2024/06/02 2024/06/02 Johannesburg Metro (GJM) Standard 60 0.83 5 4 3.0 2169.4 2178.9 Analysis
147 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (Prestige) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 5 3.5 2169.4 2178.9 Analysis
146 10th Piet van Zyl Chess Festival 2024 (A+B) 2024/05/24 2024/05/25 Mangaung (FMB) Standard 90 0.94 5 5 4.5 2192.3 2206.4 Analysis
145 JMC Crawford International Sandton 2024 (A) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 4 2.5 2192.3 2206.4 Analysis
144 JMC Helpmekaar Kollege Tournament 2024 (A) 2024/05/04 2024/05/04 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 2192.3 2206.4 Analysis
143 2024 Ethekwini Open (A) 2024/04/20 2024/04/21 Ethekwini (KED) Standard 60 0.83 6 6 6.0 2228.2 2234.9 Analysis
142 UFH Open 2024 (A) 2024/04/13 2024/04/14 Amathole (EAL) Standard 90 0.94 7 7 6.0 2228.2 2234.9 Analysis
141 South African Closed Chess Championship 2024 (Open) 2024/03/25 2024/04/02 Cape Town (WCT) Standard 150 1.00 11 11 2.5 2228.2 2234.9 Analysis
140 Wanderers Blitz Tournament 2024 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Blitz 8 0.25 9 9 7.0 2235.1 2264.5 Analysis
139 JNW Open - Classic - Crawford 2024 (A) 2024/03/09 2024/03/09 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 2235.1 2241.3 Analysis
138 JMC Unika School Tournament 2024 (A) 2024/03/02 2024/03/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 2235.1 2241.3 Analysis
137 Gear Up Mzansi Rapid 2024 (Expert) 2024/02/17 2024/02/17 Johannesburg Metro (GJM) Rapid 35 0.66 5 5 4.5 2222.5 2204.9 Analysis
136 JMC Kick Off Tournament 2024 (A) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.5 2202.6 2198.9 Analysis
135 2024 Tshwane Chess OPEN Registration Tournament (Prestige) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 3.5 2202.6 2198.9 Analysis
134 2024 Gauteng Inter-Region Chess Championship (Adult A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 2202.6 2198.9 Analysis
133 2023 USSA Championships (Blitz) 2023/12/06 2023/12/06 Ethekwini (KED) Blitz 5 0.18 9 9 8.5 2098.8 2144.9 Analysis
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Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 120 76 27 17 89.5 74.6 209.0 1929.7 2138.7
White 59 32 19 8 41.5 70.3 172.9 1963.9 2136.8
Black 61 44 8 9 48.0 78.7 243.9 1896.7 2140.6
Standard All 95 58 24 13 70.0 73.7 201.3 1941.1 2142.4
White 48 25 17 6 33.5 69.8 168.2 1982.4 2150.7
Black 47 33 7 7 36.5 77.7 235.1 1898.9 2134.0
Rapid All 5 4 1 0 4.5 90.0 340.0 2076.5 2416.5
White 2 1 1 0 1.5 75.0 212.5 2045.8 2258.3
Black 3 3 0 0 3.0 100.0 425.0 2097.0 2522.0
Blitz All 20 14 2 4 15.0 75.0 212.5 1839.1 2051.6
White 9 6 1 2 6.5 72.2 188.9 1846.7 2035.6
Black 11 8 1 2 8.5 77.3 231.8 1832.8 2064.6
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 956 606 229 121 720.5 75.4 215.6 1811.7 2027.3
White 486 314 121 51 374.5 77.1 230.0 1810.8 2040.8
Black 470 292 108 70 346.0 73.6 200.7 1812.5 2013.3
Standard All 697 416 185 96 508.5 73.0 195.1 1812.0 2007.1
White 352 214 98 40 263.0 74.7 210.1 1816.9 2027.0
Black 345 202 87 56 245.5 71.2 179.9 1807.0 1986.8
Rapid All 54 38 11 5 43.5 80.6 259.7 1863.7 2123.4
White 29 21 5 3 23.5 81.0 263.8 1809.5 2073.3
Black 25 17 6 2 20.0 80.0 255.0 1926.6 2181.6
Blitz All 205 152 33 20 168.5 82.2 273.7 1796.9 2070.6
White 105 79 18 8 88.0 83.8 287.4 1790.9 2078.3
Black 100 73 15 12 80.5 80.5 259.3 1803.3 2062.5
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 103022974 Mhango, BF (Banele) 40 20.0 5 30 5 50.0 2107.9 0.0 2107.9 View list
2 184019054 Mabusela, JM (Johannes) 30 12.5 6 13 11 41.7 2086.9 -70.8 2016.1 View list
3 192023485 Mnguni, JD (Jakob) 25 13.0 7 12 6 52.0 2101.1 17.0 2118.1 View list
4 101050584 Mazibuko, K (Khanya) 23 15.5 10 11 2 67.4 2086.1 147.8 2233.9 View list
5 194026329 Mwale, J (Joseph) 23 11.0 8 6 9 47.8 2057.0 -18.5 2038.5 View list
6 185028656 Oatlhotse, P (Providence) 18 9.0 5 8 5 50.0 2094.1 0.0 2094.1 View list
7 191012376 Hercules, BV (Benjamin) 14 5.5 3 5 6 39.3 2043.1 -91.1 1952.0 View list
8 101023373 Mlahleki, V (Vusimuzi) 13 8.5 4 9 0 65.4 2065.8 130.8 2196.6 View list
9 187019959 Makoto, R (Rodwell) 13 7.5 3 9 1 57.7 2069.9 65.4 2135.3 View list
10 182025885 Mthunzi, B (Brighton) 12 8.0 5 6 1 66.7 2074.1 141.7 2215.8 View list
11 197084822 Mathebula, X (Xolani Cebo) 11 9.0 8 2 1 81.8 2074.5 270.5 2344.9 View list
12 183068085 Magagula, R (Raymond) 10 10.0 10 0 0 100.0 2105.1 425.0 2530.1 View list
13 182004314 Cawdery, DJ (Daniel) 9 1.5 0 3 6 16.7 2073.2 -283.3 1789.9 View list
14 105058538 Smit, D (Devon) 8 7.0 6 2 0 87.5 2107.6 318.8 2426.3 View list
15 107092639 Simpson, M (Michael) 8 6.0 5 2 1 75.0 2106.5 212.5 2319.0 View list
16 198056522 Teeke, K (Karabo) 8 6.0 5 2 1 75.0 2090.0 212.5 2302.5 View list
17 103007373 Dinham, J (James) 8 4.5 4 1 3 56.3 2116.0 53.1 2169.1 View list
18 105029067 Oosthuizen, MJ (Michal) 8 4.5 3 3 2 56.3 2098.0 53.1 2151.1 View list
19 199021497 Masiya, MA (Mfundo) 8 4.5 2 5 1 56.3 2017.2 53.1 2070.3 View list
20 110086011 Felix, R (Raphael) 7 6.0 6 0 1 85.7 2097.9 303.6 2401.5 View list