PLAYER PAGE

Zachariah Deysel

1170134515
Johannesburg Metro (GJM)
Personal
Main rating
Rating 1530.9
K-factor 28
Floor 1114.1
Highest 1614.1 (2026-03-01)
Min/Max +/- allowed 92
Rating Change
()
Games 5
Score 3
We 2.69
SWe 0.26
Temp +/- 7.2
Penalties 0
Weight perform 1462.2
Final +/- +7.2
New Rating
()
Rating 1538.1
K-factor 28
Floor 1114.1
Highest 1614.1 (2026-03-01)
Min/Max +/- allowed 91.9
Standard rating
Rating 1544.6
K-factor 28
Floor 1114.1
Highest 1614.1 (2026-03-01)
Min/Max +/- allowed 91.9
Rating Change
()
Games 5
Score 3
We 2.65
SWe 0.35
Temp +/- 9.9
Penalties 0
Weight perform 1539.7
Final +/- +9.9
New Rating
()
Rating 1554.6
K-factor 28
Floor 1114.1
Highest 1614.1 (2026-03-01)
Min/Max +/- allowed 91.9
Rapid rating
Rating 1152.1
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 1152.1
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Blitz rating
Rating 1193
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 1193
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 (U10 Open) Standard 2026-10-17 2026-10-17 Ekurhuleni (GE) 5 1530.9 5 3 1590.7 7.2 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 JMC Closed 2026 (U10) Standard 2026-08-01 2026-08-01 Johannesburg Metro (GJM) 5 1530.9 5 3 1549.1 1.9 Details
2 South African Open Championship 2026 (U9 Boys) Classical 2026-07-02 2026-07-05 Cape Town (WCT) 7 1526.9 7 4.5 1608.7 17.8 Details
3 Randburg Chess Club WInter Blitz 2026 Blitz 2026-07-07 2026-07-07 Johannesburg Metro (GJM) 8 1526.9 7 1.5 1228.8 -15.7 Details
4 Ekurhuleni Open 2026 (E) Standard 2026-05-23 2026-05-23 Ekurhuleni (GE) 5 1492.4 5 4 1705.3 30.1 Details
5 2026 Centurion Mall Open Chess Tournament (B) Standard 2026-05-16 2026-05-17 Tshwane (GTP) 5 1527.5 4 0.5 1243.7 -35.1 Details
6 Randburg NY Swiss 2026 Standard 2026-02-10 2026-03-31 Johannesburg Metro (GJM) 8 1614.1 5 0 1059.9 -86.5 Details
7 2026 Chris Greyling Open Tournament (U12) Standard 2026-03-14 2026-03-14 Tshwane (GTP) 5 1532.4 5 4 1687.1 23.2 Details
8 2026 Silver Lakes Open Chess Tournament (U12) Standard 2026-03-07 2026-03-07 Tshwane (GTP) 5 1532.4 5 4 1674 21.2 Details
9 2026 Blou Bull Chess Tournament (U12) Standard 2026-02-21 2026-02-21 Tshwane (GTP) 5 1532.4 5 4 1633.1 14.9 Details
10 2026 AHS Chess Tournament (U12) Standard 2026-02-28 2026-02-28 Tshwane (GTP) 5 1532.4 5 3.5 1452.5 -11 Details
11 Ekurhuleni 1st Standard Tournament 2026 (D) Standard 2026-02-14 2026-02-14 Ekurhuleni (GE) 5 1506.8 5 4 1630.3 11.5 Details
12 MCA Welcome JHB 2026 (U10) Standard 2026-02-07 2026-02-07 Johannesburg Metro (GJM) 5 1506.8 5 4 1592.8 5.4 Details
13 MCA Tshwane Welcome 2026 (U10) Standard 2026-01-24 2026-01-24 Tshwane (GTP) 5 1506.8 5 3.5 1655.6 8.4 Details
14 2026 JMC Kick off Tournament (U12) Standard 2026-02-01 2026-02-01 Johannesburg Metro (GJM) 5 1506.8 5 2.5 1300 -20.7 Details
15 JMC Closed 2025 (U10) Standard 2025-08-09 2025-08-09 Johannesburg Metro (GJM) 5 1505.8 5 3.5 1517.5 0.7 Details
16 South African Open 2025 (U10 Open) Classical 2025-07-03 2025-07-05 Johannesburg Metro (GJM) 5 1486.5 5 3.5 1595.7 12 Details
17 Moja Chess Extravaganza 2025 (U10) Classical 2025-04-26 2025-04-28 Johannesburg Metro (GJM) 5 1522.8 5 2.5 1334.8 -22.8 Details
18 South African Junior Closed Chess Championships 2025 (U8 Open) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1445.2 9 6.5 1678.6 48.4 Details
19 JMC Crawford Ruimsig 2025 (U10) Standard 2025-03-01 2025-03-01 Johannesburg Metro (GJM) 5 1456.8 5 3 1373.7 -7.3 Details
20 JMC Kick Off 2025 (U10) Standard 2025-02-02 2025-02-02 Johannesburg Metro (GJM) 5 1493.2 5 2.5 1265.2 -22.7 Details
21 Gauteng Inter-Region at UJ 2024 (U8 Open) Standard 2024-12-07 2024-12-08 Johannesburg Metro (GJM) 5 1453.8 5 5 1680.3 24.6 Details
22 2024 Tshwane Chess Club Clash (Open) Standard 2024-10-12 2024-10-12 Tshwane (GTP) 5 1484.3 5 2 1295.6 -19.1 Details
23 2024 Moja Chess Extravaganza (D) Standard 2024-09-25 2024-09-26 Frances Baard (NCF) 5 1415.2 5 4 1600.5 17.8 Details
24 Centurion Chess Open Tournament 2024 (U12) Standard 2024-09-21 2024-09-21 Tshwane (GTP) 5 1415.2 5 2 1184.8 -21.7 Details
25 Kings Gambit Chess Open 14 Sept 2024 (E) Standard 2024-09-14 2024-09-14 Sedibeng (GSV) 5 1415.2 5 5 1722.7 30.9 Details
26 JCC Khelo India 1st Annual Chess Tournament 2024 (E) Standard 2024-08-31 2024-08-31 Johannesburg Metro (GJM) 5 1415.2 5 4 1492.5 6.8 Details
27 Bojanala's FIDE In The Sparkling Waters 2024 (Young Junior Champs) Classical 2024-08-17 2024-08-17 Bojanala Platina (NBR) 5 1367.9 5 4 1483.9 14.6 Details
28 JMC Closed 2024 (U8) Standard 2024-08-09 2024-08-09 Johannesburg Metro (GJM) 5 1367.9 5 4 1527.9 14.9 Details
29 JNW Rapid - Helpmekaar Kollege 2024 Rapid 2024-07-28 2024-07-28 Johannesburg Metro (GJM) 7 1406.4 7 3 1334.1 -8.2 Details
30 JMC Trinityhouse Randpark Ridge 2024 (U10) Standard 2024-07-13 2024-07-13 Johannesburg Metro (GJM) 5 1406.4 5 3 1359.6 -5 Details
31 JMC NG Weltevreden Church 2024 Rapid 2024-06-29 2024-06-29 Johannesburg Metro (GJM) 7 1406.4 7 2 1259.5 -10.8 Details
32 2024 African Youth Chess Championship Classical 2024-06-16 2024-06-22 Tshwane (GTP) 9 1512.6 8 3.5 987.7 -79.2 Details
33 Chess Power House May Open 2024 (E) Standard 2024-05-25 2024-05-25 Johannesburg Metro (GJM) 5 1521.9 5 4.5 1671.3 15.6 Details
34 JMC Crawford International Sandton 2024 (U10) Standard 2024-05-11 2024-05-11 Johannesburg Metro (GJM) 5 1521.9 5 3 1379.7 -12.8 Details
35 JMC Helpmekaar Kollege Tournament 2024 (U10) Standard 2024-05-04 2024-05-04 Johannesburg Metro (GJM) 5 1521.9 5 3.5 1386.6 -8.6 Details
36 1st Knights Open Tournament 2024 (U8) Standard 2024-03-23 2024-03-23 Johannesburg Metro (GJM) 5 1097.8 5 4.5 1544.5 44.2 Details
37 Bojanala Silwerrand's Rating Implosion 2024 (Big Pawns) Standard 2024-03-16 2024-03-16 Bojanala Platina (NBR) 5 1097.8 5 5 1568.5 46.6 Details
38 JNW Open - Classic - Crawford 2024 (U8) Standard 2024-03-09 2024-03-09 Johannesburg Metro (GJM) 5 1097.8 5 4 1543.6 42.7 Details
39 JMC Unika School Tournament 2024 Standard 2024-03-02 2024-03-02 Johannesburg Metro (GJM) 5 1097.8 5 4 1531 41.3 Details
40 2024 Gauteng Inter-Region Chess Championship (U8) Standard 2024-01-13 2024-01-14 Tshwane (GTP) 5 1060.7 5 1 1018.4 -5.6 Details
41 JMC Kick Off Tournament 2024 (U8) Standard 2024-01-28 2024-01-28 Johannesburg Metro (GJM) 5 1060.7 5 3 1293.8 21.9 Details
42 ThinkChess Academy 2023 (B) Standard 2023-09-09 2023-09-09 Johannesburg Metro (GJM) 5 1040.8 5 2 1138.5 10.1 Details
43 JMC Closed Aug 2023 (U8) Standard 2023-08-04 2023-08-06 Johannesburg Metro (GJM) 6 1063.7 5 1 956.1 -11.3 Details
44 Bojanala's FIDE in the Sparkling Waters 2023 (Junior) Classical 2023-07-29 2023-07-29 Bojanala Platina (NBR) 6 967.8 5 1 979.8 2 Details
45 JMC Trinity Little Falls 2023 (U8) Standard 2023-07-02 2023-07-02 Johannesburg Metro (GJM) 5 967.8 5 2 1172.9 19.1 Details
46 GoForChess Junior Chess Championship Grayston 2023 (Juniors) Standard 2023-07-16 2023-07-16 Johannesburg Metro (GJM) 5 967.8 5 2 1138.7 17.1 Details
47 GoForChess Junior Chess Championship 2023 (Junior) Standard 2023-06-10 2023-06-10 Johannesburg Metro (GJM) 5 934.9 5 2.5 1111.5 16.4 Details
48 JNW Open - Crawford 2023 (U8) Standard 2023-03-04 2023-03-04 Johannesburg Metro (GJM) 5 939.5 4 1 913.3 -2.2 Details
49 2023 Piet Robbertse Fide Rated Open Chess Tournament (F) Standard 2023-02-04 2023-02-04 Tshwane (GTP) 5 947.4 5 1.5 919.7 -3.9 Details
50 Laerkool Midvaal Chess Open 2023 (E) Standard 2023-01-28 2023-01-28 Sedibeng (GSV) 5 969.6 5 1 849.1 -11.4 Details
Game statistics ( )
Games 5
Wins 3
Draws 0
Losses 2
White 3
Black 2
White wins 2
Black wins 1
Score 3
Percent 60
Dp 85
AOR 1505.7
Performance 1590.7
Game statistics ()
Games 78
Wins 42
Draws 8
Losses 28
White 43
Black 35
White wins 25
Black wins 17
Score 46
Percent 59
Dp 76.3
AOR 1430
Performance 1506.3
Game statistics (History)
Games 331
Wins 152
Draws 35
Losses 144
White 171
Black 160
White wins 82
Black wins 70
Score 169.5
Percent 51.2
Dp 10.3
AOR 1278.9
Performance 1289.1
Rankings (Main)
National
Overall 1660
Gender 1487
Age group 51
Gender/Age 45
Provincial
Overall 590
Gender 522
Age group 22
Gender/Age 19
Regional
Overall 218
Gender 189
Age group 9
Gender/Age 8
Rankings (Standard)
National
Overall 1372
Gender 1221
Age group 47
Gender/Age 41
Provincial
Overall 513
Gender 456
Age group 22
Gender/Age 19
Regional
Overall 184
Gender 160
Age group 9
Gender/Age 8
Rankings (Rapid)
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
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 3
Percent 60
Aor 1505.7
Dp 85
Prat 1590.7
Performance ()
Games 78
Score 46
Percent 59
Aor 1430
Dp 76.3
Prat 1506.3
Performance (12 months)
Games 78
Score 46
Percent 59
Aor 1430
Dp 76.3
Prat 1506.3
Performance (History)
Games 331
Score 169.5
Percent 51.2
Aor 1278.9
Dp 10.3
Prat 1289.1
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Deysel, E (Eli) 13 5 8 2021 Alekhine Open (F) GoForChess Junior Chess Championship 2023 (Junior) Details
Overall 2 Malemane, A (Atlehang Faith) 6 4 2 JMC Closed Aug 2023 (U8) JMC Closed 2024 (U8) Details
Overall 3 Koorts, L (Lukas) 6 3 3 JMC Kick Off Tournament 2024 (U8) South African Junior Closed Chess Championships 2025 (U8 Open) Details
Overall 4 Gerber, Z (Zoe) 5 2 3 JMC Trials 1 - Laerskool Fontainebleau 2022 (U8) JMC Trinityhouse Randpark Ridge 2024 (U10) Details
Overall 5 Sahoo, S (Shaurya) 5 1 4 ThinkChess Academy 2023 (B) South African Open 2025 (U10 Open) Details
Standard 1 Deysel, E (Eli) 12 4 8 2021 Alekhine Open (F) GoForChess Junior Chess Championship 2023 (Junior) Details
Standard 2 Malemane, A (Atlehang Faith) 6 4 2 JMC Closed Aug 2023 (U8) JMC Closed 2024 (U8) Details
Standard 3 Koorts, L (Lukas) 6 3 3 JMC Kick Off Tournament 2024 (U8) South African Junior Closed Chess Championships 2025 (U8 Open) Details
Standard 4 Gerber, Z (Zoe) 5 2 3 JMC Trials 1 - Laerskool Fontainebleau 2022 (U8) JMC Trinityhouse Randpark Ridge 2024 (U10) Details
Standard 5 Sahoo, S (Shaurya) 5 1 4 ThinkChess Academy 2023 (B) South African Open 2025 (U10 Open) Details