Player Page

Botha, R (Ralph)
Dob: 1981/12/07 (Adult)
Gender: Male
Chess SA id: 181084295
FIDE id:
Region: Eden (WEG)
Citizen: RSA
Title(s):
Last active: 2024/05/16 (59 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 rating1671.5
Current Weighted rating1619.9
Current Weighted performance1443.0
Current official/published rating (highest between Raw, WR and WP)1671.5
Current highest rating achieved1698.9
Current floor (min rating allowed)1198.9
Current K-factor28
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)±84.7
Current Raw change used (final)0.0
Projected new Raw rating1671.5
Projected new Weighed rating1491.8
Projected new Weighted performance1443.0
Projected new final Raw rating (if new WP > new Raw)1671.5
Projected new highest rating1698.9
Projected new floor1198.9
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1671.5
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 rating1636.4
Current Weighted rating1604.2
Current Weighted performance1410.4
Current official/published rating (highest between Raw, WR and WP)1636.4
Current highest rating achieved1648.4
Current floor (min rating allowed)1148.4
Current K-factor28
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)±89.0
Current Raw change used (final)0.0
Projected new Raw rating1636.4
Projected new Weighed rating1477.3
Projected new Weighted performance1410.4
Projected new final Raw rating (if new WP > new Raw)1636.4
Projected new highest rating1648.4
Projected new floor1148.4
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1636.4
Projected effective change (new Official - current Official)=0.0
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 rating1203.6
Current Weighted rating1147.3
Current Weighted performance1292.7
Current official/published rating (highest between Raw, WR and WP)1292.7
Current highest rating achieved1203.6
Current floor (min rating allowed)703.6
Current K-factor36
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)±165.0
Current Raw change used (final)0.0
Projected new Raw rating1203.6
Projected new Weighed rating1055.2
Projected new Weighted performance1292.7
Projected new final Raw rating (if new WP > new Raw)1292.7
Projected new highest rating1292.7
Projected new floor792.7
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1292.7
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 rating1729.1
Current Weighted rating1643.1
Current Weighted performance1573.0
Current official/published rating (highest between Raw, WR and WP)1729.1
Current highest rating achieved1843.2
Current floor (min rating allowed)1343.2
Current K-factor24
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)±78.0
Current Raw change used (final)0.0
Projected new Raw rating1729.1
Projected new Weighed rating1516.1
Projected new Weighted performance1573.0
Projected new final Raw rating (if new WP > new Raw)1729.1
Projected new highest rating1843.2
Projected new floor1343.2
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1729.1
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
5 InterClub Blitz 2 2024 2024/05/16 2024/05/16 Eden (WEG) Blitz 5 0.18 10 8 5.0 1672.4 1778.8 Analysis
4 InterClub Blitz 1 2024 2024/04/17 2024/04/17 Eden (WEG) Blitz 5 0.18 10 8 4.5 1681.0 1802.8 Analysis
3 Waboomskraal Chess Club Open 2024 2024/04/06 2024/04/06 Eden District (WEG) Rapid 20 0.47 7 7 4.0 1681.0 1114.0 Analysis
2 Southern Knights Blitz 2024 (Open) 2024/02/23 2024/02/23 Eden District (WEG) Blitz 5 0.18 9 8 4.0 1684.9 1843.2 Analysis
1 Eden Closed 2024 (Men) 2024/01/20 2024/01/21 Eden District (WEG) Standard 90 0.94 6 6 3.5 1698.9 1648.4 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
36 InterClub Blitz 2 2024 2024/05/16 2024/05/16 Eden (WEG) Blitz 5 0.18 10 8 5.0 1672.4 1778.8 Analysis
35 InterClub Blitz 1 2024 2024/04/17 2024/04/17 Eden (WEG) Blitz 5 0.18 10 8 4.5 1681.0 1802.8 Analysis
34 Waboomskraal Chess Club Open 2024 2024/04/06 2024/04/06 Eden District (WEG) Rapid 20 0.47 7 7 4.0 1681.0 1114.0 Analysis
33 Southern Knights Blitz 2024 (Open) 2024/02/23 2024/02/23 Eden District (WEG) Blitz 5 0.18 9 8 4.0 1684.9 1843.2 Analysis
32 Eden Closed 2024 (Men) 2024/01/20 2024/01/21 Eden District (WEG) Standard 90 0.94 6 6 3.5 1698.9 1648.4 Analysis
31 Mossel Bay Open 2023 (A) 2023/09/30 2023/10/01 Eden District (WEG) Standard 90 0.94 6 6 2.0 1551.8 1593.3 Analysis
30 Mossel Bay Open 2023 (Blitz) 2023/09/29 2023/09/29 Eden District (WEG) Blitz 7 0.23 6 6 4.0 1543.6 1509.7 Analysis
29 Pacaltsdorp Chess Club Open 2023 (A) 2023/08/26 2023/08/26 Eden District (WEG) Rapid 30 0.60 6 6 2.0 1559.1 1136.0 Analysis
28 Pacaltsdorp Chess Club Open 2023 (Blitz) 2023/08/25 2023/08/25 Eden District (WEG) Blitz 5 0.18 6 6 5.0 1559.1 1487.6 Analysis
27 Knysna Oyster Festival 2023 (Open) 2023/07/01 2023/07/01 Eden District (WEG) Rapid 30 0.60 6 6 2.0 1607.1 1167.6 Analysis
26 Inter Club Blitz 2 2023 (Open) 2023/06/21 2023/06/21 Eden District (WEG) Blitz 5 0.18 10 8 4.0 1611.2 1516.4 Analysis
25 Inter Club Blitz 1 2023 2023/05/24 2023/05/24 Eden District (WEG) Blitz 5 0.18 10 8 4.0 1611.6 1515.8 Analysis
24 Western Cape Inter Regional 2023 (Senior Men) 2023/03/18 2023/03/19 Eden District (WEG) Standard 90 0.94 5 4 3.0 1589.0 1566.1 Analysis
23 George Open 2022 (A) 2022/12/03 2022/12/03 Eden District (WEG) Standard 60 0.83 5 5 4.0 1559.3 1523.9 Analysis
22 Interclub Blitz Evening (Mossel Bay) 2022 2022/10/26 2022/10/26 Eden District (WEG) Blitz 5 0.18 6 6 5.0 1550.4 1479.4 Analysis
21 Pacaltsdorp Chess Club 2022 (A) 2022/08/27 2022/08/27 Eden District (WEG) Rapid 25 0.54 6 6 4.0 1523.2 1093.6 Analysis
20 Pacaltsdorp Chess Club 2022 (Blitz) 2022/08/26 2022/08/26 Eden District (WEG) Blitz 5 0.18 6 6 5.0 1523.2 1391.0 Analysis
19 Interclub Blitz Evening 2022 2022/08/11 2022/08/11 Eden District (WEG) Blitz 5 0.18 6 6 4.0 1523.2 1391.0 Analysis
18 Knysna Oyster Festival Rapid Chess 2022 (A) 2022/07/02 2022/07/02 Eden District (WEG) Rapid 30 0.60 5 5 2.5 1534.0 1050.0 Analysis
17 Interclub Blitz Evening 2022 2022/06/08 2022/06/08 Eden District (WEG) Blitz 5 0.18 6 6 5.0 1527.1 1345.3 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 37 20 2 15 21.0 56.8 57.4 1564.5 1622.0
White 18 10 1 7 10.5 58.3 70.8 1534.6 1605.4
Black 19 10 1 8 10.5 55.3 44.7 1592.9 1637.7
Standard All 6 3 1 2 3.5 58.3 70.8 1552.7 1623.6
White 3 1 0 2 1.0 33.3 -141.7 1570.7 1429.1
Black 3 2 1 0 2.5 83.3 283.3 1534.7 1818.1
Rapid All 7 4 0 3 4.0 57.1 60.7 1556.6 1617.3
White 3 2 0 1 2.0 66.7 141.7 1419.8 1561.5
Black 4 2 0 2 2.0 50.0 0.0 1659.2 1659.2
Blitz All 24 13 1 10 13.5 56.3 53.1 1569.8 1622.9
White 12 7 1 4 7.5 62.5 106.3 1554.2 1660.5
Black 12 6 0 6 6.0 50.0 0.0 1585.4 1585.4
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 222 134 11 77 139.5 62.8 109.1 1463.9 1573.0
White 109 64 4 41 66.0 60.6 89.7 1475.8 1565.5
Black 113 70 7 36 73.5 65.0 127.9 1452.4 1580.2
Standard All 66 35 7 24 38.5 58.3 70.8 1473.0 1543.8
White 32 17 2 13 18.0 56.3 53.1 1533.2 1586.3
Black 34 18 5 11 20.5 60.3 87.5 1416.3 1503.8
Rapid All 41 23 2 16 24.0 58.5 72.6 1420.0 1492.6
White 20 10 1 9 10.5 52.5 21.3 1376.5 1397.8
Black 21 13 1 7 13.5 64.3 121.4 1461.5 1582.9
Blitz All 115 76 2 37 77.0 67.0 144.1 1474.3 1618.4
White 57 37 1 19 37.5 65.8 134.2 1478.4 1612.6
Black 58 39 1 18 39.5 68.1 153.9 1470.3 1624.1
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 198065504 Jaars, T (Thomas) 14 9.5 9 1 4 67.9 1446.8 151.8 1598.6 View list
2 185022852 Meyer, PJ (Pravin) 12 8.5 8 1 3 70.8 1501.7 177.1 1678.8 View list
3 105088335 Taute, C (Clayden) 8 3.0 3 0 5 37.5 1627.0 -106.3 1520.7 View list
4 192037054 Swartbooi, G (Gabriel) 7 6.0 6 0 1 85.7 1501.5 303.6 1805.0 View list
5 198013875 Jansen Van Rensburg, R (Ruan) 6 5.5 5 1 0 91.7 1393.7 354.2 1747.8 View list
6 195001335 Barnard, B (Brendon) 6 5.0 5 0 1 83.3 1489.3 283.3 1772.7 View list
7 201037041 Swart, S (Sune) 6 2.5 2 1 3 41.7 1523.2 -70.8 1452.4 View list
8 197000339 Agulhas, J (Justin) 6 2.0 2 0 4 33.3 1531.6 -141.7 1390.0 View list
9 178005017 Cloete, R (Ralph) 6 2.0 2 0 4 33.3 1489.7 -141.7 1348.0 View list
10 180043087 Wilson, RP (Reginald) 5 2.0 2 0 3 40.0 1575.7 -85.0 1490.7 View list
11 103009749 Fourie, C (Corne) 5 1.0 1 0 4 20.0 1498.8 -255.0 1243.8 View list
12 107088309 Michaels, A (Antonio) 5 1.0 1 0 4 20.0 1603.6 -255.0 1348.6 View list
13 199036980 Swart, G (George) 5 0.0 0 0 5 0.0 1330.1 -425.0 905.1 View list
14 199008504 Dyzel, P (Pieter) 4 3.0 3 0 1 75.0 1523.6 212.5 1736.1 View list
15 183060789 Johnson, A (Azriel) 4 3.0 3 0 1 75.0 1467.0 212.5 1679.5 View list
16 195014475 Joseph, C (Cohen-Lee) 4 3.0 3 0 1 75.0 1284.7 212.5 1497.2 View list
17 181033003 Salmons, R (Ricardo) 4 3.0 3 0 1 75.0 1472.0 212.5 1684.5 View list
18 184060786 Blignaut, R (Ryno) 4 2.5 2 1 1 62.5 1646.1 106.3 1752.3 View list
19 105091176 Meyer, J (Jared) 4 2.0 2 0 2 50.0 1461.7 0.0 1461.7 View list
20 1100130764 Claassen, R (Raynier) 4 1.0 1 0 3 25.0 1586.7 -212.5 1374.2 View list