Chess South Africa Ratings Database

PLAYER PAGE

Personal

Johnson, C (Caleb)

Chess SA id

107078828

FIDE id

Date of birth

2007-05-23 (U20)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1538.8

Item	Main	Standard	Rapid	Blitz
Rating	1553.7	1549.2	1168	1347
Raw rating	1553.6	1549.2	1168	1347
Weighted rating	1553.7	1546.4	1168	1338.6
Weighted performance	1493.4	1494	0	0
Floor	1072.3	1070.9	700	847
K-factor	32	32	36	36
Min/Max rating change allowed	100.2	100.8	173.6	134.5
Highest rating	1572.3 2025-07-01	1570.9 2025-07-01	1200 2018-10-01	1537.8 2023-07-01
Highest raw rating	1572.3 2025-07-01	1570.9 2025-07-01	1200 2020-01-01	1347 2024-08-01
Highest weighted rating	1553.7 2025-09-30	1546.4 2025-09-30	1200 2018-10-01	1334.6 2025-08-01
Highest weighted performance	1565 2020-02-01	1561.4 2020-02-01	1200 2020-01-01	1537.8 2023-07-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.3	0	0	0
New rating	1554	1549.2	1168	1347
Analysis
Rating	1553.7	1549.2	1168	1347
Raw rating	1553.6	1549.2	1168	1347
Weighted rating	1553.7	1546.4	1168
Weighted performance	1493.4	1494	0
K-factor	32	32	36	36
Floor	1072.3	1070.9	700	847
Max/Min rating change allowed	100.2	100.8	173.6	134.5
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1553.6	1549.2	1168	1347
New weighted rating	1554	1546.9	1168	1340.3
New weighted performance	1492.8	1493.4	0	0
Temp new rating	1554	1549.2	1168	1347
Temp new rating +/-	0.3	0	0	0
Final new rating +/-	0.3	0	0	0
New rating	1554	1549.2	1168	1347
New K-factor	32	32	36	36
New floor	1072.3	1070.9	700	847

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	21	21	0	0
	24	15	0	9
	37	31	0	6
	46	46	0	0
	11	6	5	0
History	224	204	5	15

Games since
	Main 45	Standard 36		Rapid 0		Blitz 9
Gender	Male
Age group	U20
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	874		316		112
Male	774		278		97
U20	82		25		4
U20 Male	73		22		2
Standard
	RSA		Province		Region
Overall	850		322		109
Male	747		282		93
U20	80		26		4
U20 Male	69		23		2
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	21	12	57.14	60.7	1511.1	1571.8
Standard	21	12	57.14	60.7	1511.1	1571.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	218	140.5	64.45	122.8	1352.8	1475.6
Standard	198	125	63.13	111.6	1346.6	1458.2
Rapid	5	3.5	70	170	1376	1546
Blitz	15	12	80	255	1427.3	1682.3

Date	Main	Standard	Rapid	Blitz
2025-09-30	1553.6	1549.2	1168	1347
2025-09-01	1557.4	1552.4	1168	1347
2025-08-01	1557.4	1552.4	1168	1347
2025-07-01	1572.3	1570.9	1168	1347
2025-06-01	1553.4	1545.4	1168	1347
2025-05-01	1553.4	1545.4	1168	1347
2025-04-01	1553.4	1545.4	1168	1347
2025-03-01	1553.4	1545.4	1168	1347
2025-02-01	1544.7	1535	1168	1347
2025-01-01	1541	1526.3	1168	1347
2024-12-01	1541	1526.3	1168	1347
2024-11-01	1541	1526.3	1168	1347
2024-10-01	1541	1526.3	1168	1347
2024-09-01	1568.6	1558.6	1168	1347
2024-08-01	1568.6	1558.6	1168	1347
2024-07-01	1559.1	1558.6	1168	1290.8
2024-06-01	1559.1	1558.6	1168	1290.8
2024-08-01	1559.1	1558.6	1168	1290.8
2024-04-01	1559.1	1558.6	1168	1290.8
2024-03-01	1559.1	1558.6	1168	1290.8
2024-02-01	1545.3	1542.6	1168	1290.8
2024-01-01	1542.3	1539.1	1168	1290.8
2023-12-01	1513	1497.3	1168	1290.8
2023-11-01	1513	1497.3	1168	1290.8

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	St Peters College Sports & Cultural Festival 2025	2025-09-19	2025-09-20	Standard	Johannesburg Metro (GJM)	6	6	3.5	Yes	Analysis
2	JMC - Trinity Randpark Ridge 2025 (B)	2025-07-26	2025-07-26	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
3	JMC Helpmekaar 2025 (B)	2025-06-01	2025-06-01	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
4	Grey College Team Championship 2025 (Prestige)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	St Peters College Sports & Cultural Festival 2025	2025-09-19	2025-09-20	Standard	Johannesburg Metro (GJM)	6	6	3.5	Yes	Analysis
2	JMC - Trinity Randpark Ridge 2025 (B)	2025-07-26	2025-07-26	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
3	JMC Helpmekaar 2025 (B)	2025-06-01	2025-06-01	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
4	Grey College Team Championship 2025 (Prestige)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
5	Gauteng Schools Individuals Finals 2024 (U18 Boys)	2024-08-17	2024-08-17	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
6	Helpmekaar Kollege Blitz Chess Invitational 2024 (A)	2024-07-27	2024-07-27	Blitz	Johannesburg Metro (GJM)	9	9	7	Yes	Analysis
7	Grey College Team Championship 2024 (A)	2024-02-23	2024-02-24	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
8	2024 Gauteng Inter-Region Chess Championship (U18A)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
9	2023 Gauteng Top Schools (U17 Mixed)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	5	4.5	Yes	Analysis
10	JMC Closed Aug 2023 (U18+U20)	2023-08-04	2023-08-06	Standard	Johannesburg Metro (GJM)	6	5	2	Yes	Analysis
11	JMC - The Higher Ground Restaurant 2nd Blitz Event 2023	2023-07-30	2023-07-30	Blitz	Johannesburg Metro (GJM)	7	6	5	Yes	Analysis
12	JNW Open - Trinityhouse Little Falls 2023 (B)	2023-06-24	2023-06-24	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
13	Mzansi Fide Open 2023 (Advanced)	2023-04-27	2023-05-01	Standard	Johannesburg Metro (GJM)	6	6	3.5	Yes	Analysis
14	JMC 1 St Peters 2023 (B)	2023-03-18	2023-03-18	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
15	Grey College Team Championship 2023 (A)	2023-02-03	2023-02-04	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
16	ACB Tournament 2022 (A)	2022-10-07	2022-10-08	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
17	JMC 3rd Trials 2022 (A)	2022-09-11	2022-09-11	Standard	Johannesburg Metro (GJM)	5	5	0.5	Yes	Analysis
18	JMC Trials 1 - Laerskool Fontainebleau 2022 (U16+U18)	2022-07-24	2022-07-24	Standard	Johannesburg Metro (GJM)	5	4	3.5	Yes	Analysis
19	Alberton Chess Club Open 2022 (B)	2022-07-16	2022-07-16	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
20	Mzansi Open 2022 (Prestige)	2022-04-30	2022-05-02	Standard	Johannesburg Metro (GJM)	6	6	1.5	Yes	Analysis
21	Goforchess Junior Championship 2022 (Grayston)	2022-03-06	2022-03-06	Standard	Johannesburg Metro (GJM)	5	5	4.5	Yes	Analysis
22	South African Junior Closed Chess Championships 2022 (U16 Open)	2022-03-28	2022-04-02	Standard	Chess South Africa (CSA)	11	11	6	Yes	Analysis
23	2022 Gauteng Interregion (U16 Open)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
24	Pinnacle College Waterfall Open (Pinnacle)	2021-10-02	2021-10-03	Standard	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis
25	JMC Helpmekaar 2021 (U16)	2021-09-06	2021-09-06	Rapid	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
26	JNW Club - Trinityhouse Little Falls Open 2020 (A)	2020-03-14	2020-03-14	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
27	JNW Club - Trinityhouse Randpark Ridge Open 2020 (B)	2020-02-22	2020-02-22	Standard	Johannesburg Metro (GJM)	5	4	3.5	Yes	Analysis
28	2019 Wild Card Chess Championship (U14 Open)	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
29	2019 South African Junior Team Championships (U14A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	7	Yes	Analysis
30	2019 Gauteng School League Finals (U13 Open)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
31	JNW Club - Helpmekaar Kollege Open 2019 (B)	2019-07-06	2019-07-06	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
32	JHB Metro Closed 2019 (U14)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	6	5	Yes	Analysis
33	2019 Gauteng Primary Schools Individual Chess Championships (U13 Boys)	2019-05-25	2019-05-25	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
34	The Metro Open 2019 (Masters)	2019-05-25	2019-05-26	Standard	Johannesburg Metro (GJM)	6	6	5.5	Yes	Analysis
35	JNW Club - Bryanston Open 2 2019 (C)	2019-05-11	2019-05-11	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
36	JNW Club - Charterhouse Open 2019 (C)	2019-04-13	2019-04-13	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
37	JNW Club - Trinityhouse Randpark Ridge Open 2019 (D)	2019-03-09	2019-03-09	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
38	JNW Club - Trinityhouse Little Falls Open 2019 (D)	2019-02-23	2019-02-23	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
39	Chessnuts November 2018 (B)	2018-11-17	2018-11-17	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis
40	JNW Club - Linden Open 2018 (D)	2018-04-14	2018-04-14	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis

#	Games	Start				End
1	17	Tournament JNW Club - Charterhouse Open 2019				Tournament The Metro Open 2019
		date 2019-04-13	rnd 5	type Standard	result 1	date 2019-05-26	rnd 6	type Standard	result 1
		Opponent Van Graan, N (Nelius)				Opponent Steyn, C (Corne)
2	14	Tournament JMC Closed Aug 2023				Tournament Grey College Team Championship 2024
		date 2023-08-06	rnd 6	type Standard	result 0.5	date 2024-02-23	rnd 3	type Standard	result 1
		Opponent Voigt, H (Heinrich)				Opponent Smith, H (Hasan)
3	10	Tournament 2019 South African Junior Team Championships				Tournament 2019 Wild Card Chess Championship
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-10	rnd 3	type Standard	result 1
		Opponent Price, DR (Daelen)				Opponent Boshoma, C (Chifundo)

#	Games	Start				End
1	17	Tournament JNW Club - Charterhouse Open 2019				Tournament The Metro Open 2019
		date 2019-04-13	rnd 5	type Standard	result 1	date 2019-05-26	rnd 6	type Standard	result 1
		Opponent Van Graan, N (Nelius)				Opponent Steyn, C (Corne)
2	14	Tournament JMC Closed Aug 2023				Tournament Grey College Team Championship 2024
		date 2023-08-06	rnd 6	type Standard	result 0.5	date 2024-02-23	rnd 3	type Standard	result 1
		Opponent Voigt, H (Heinrich)				Opponent Smith, H (Hasan)
3	10	Tournament 2019 South African Junior Team Championships				Tournament 2019 Wild Card Chess Championship
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-10	rnd 3	type Standard	result 1
		Opponent Price, DR (Daelen)				Opponent Boshoma, C (Chifundo)

#	Games	Start				End
1	4	Tournament JMC Helpmekaar 2021				Tournament JMC Helpmekaar 2021
		date 2021-09-06	rnd 1	type Rapid	result 1	date 2021-09-06	rnd 4	type Rapid	result 0.5
		Opponent Mazibuko, T (Thembinkosi)				Opponent Brandt, DW (Declan William)

#	Games	Start				End
1	6	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 4	type Blitz	result 1	date 2024-07-27	rnd 9	type Blitz	result 1
		Opponent Voigt, H (Heinrich)				Opponent Maduna, N (Ncese Mcebo)
2	4	Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023				Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023
		date 2023-07-30	rnd 2	type Blitz	result 1	date 2023-07-30	rnd 5	type Blitz	result 1
		Opponent Papanicolaou, A (Alexandra)				Opponent Shaik, M (Muhaimin)
3	2	Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2023-07-30	rnd 7	type Blitz	result 1	date 2024-07-27	rnd 1	type Blitz	result 1
		Opponent Suresh, A (Aaradhya)				Opponent Phiri, K (Kondwani)

#	Games	Start				End
1	10	Tournament 2019 South African Junior Team Championships				Tournament 2019 Wild Card Chess Championship
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-10	rnd 3	type Standard	result 1
		Opponent Price, DR (Daelen)				Opponent Boshoma, C (Chifundo)
2	7	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-07-27	rnd 4	type Blitz	result 1	date 2024-08-17	rnd 1	type Standard	result 1
		Opponent Voigt, H (Heinrich)				Opponent Van Blomestein, M (Matthew)
3	6	Tournament JNW Club - Bryanston Open 2 2019				Tournament 2019 Gauteng Primary Schools Individual Chess Championships
		date 2019-05-11	rnd 5	type Standard	result 1	date 2019-05-25	rnd 2	type Standard	result 1
		Opponent Greef, S (Schalk)				Opponent Ntsume, L (Luyanda)

#	Games	Start				End
1	10	Tournament 2019 South African Junior Team Championships				Tournament 2019 Wild Card Chess Championship
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-10	rnd 3	type Standard	result 1
		Opponent Price, DR (Daelen)				Opponent Boshoma, C (Chifundo)
2	6	Tournament JNW Club - Bryanston Open 2 2019				Tournament 2019 Gauteng Primary Schools Individual Chess Championships
		date 2019-05-11	rnd 5	type Standard	result 1	date 2019-05-25	rnd 2	type Standard	result 1
		Opponent Greef, S (Schalk)				Opponent Ntsume, L (Luyanda)
3	6	Tournament Chessnuts November 2018				Tournament JNW Club - Trinityhouse Little Falls Open 2019
		date 2018-11-17	rnd 1	type Standard	result 1	date 2019-02-23	rnd 1	type Standard	result 1
		Opponent George, C (Chloe)				Opponent French, T (Tristan)

#	Games	Start				End
1	3	Tournament JMC Helpmekaar 2021				Tournament JMC Helpmekaar 2021
		date 2021-09-06	rnd 1	type Rapid	result 1	date 2021-09-06	rnd 3	type Rapid	result 1
		Opponent Mazibuko, T (Thembinkosi)				Opponent Greef, S (Schalk)

#	Games	Start				End
1	6	Tournament Helpmekaar Kollege Blitz Chess Invitational 2024				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2024-07-27	rnd 4	type Blitz	result 1	date 2024-07-27	rnd 9	type Blitz	result 1
		Opponent Voigt, H (Heinrich)				Opponent Maduna, N (Ncese Mcebo)
2	4	Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023				Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023
		date 2023-07-30	rnd 2	type Blitz	result 1	date 2023-07-30	rnd 5	type Blitz	result 1
		Opponent Papanicolaou, A (Alexandra)				Opponent Shaik, M (Muhaimin)
3	2	Tournament JMC - The Higher Ground Restaurant 2nd Blitz Event 2023				Tournament Helpmekaar Kollege Blitz Chess Invitational 2024
		date 2023-07-30	rnd 7	type Blitz	result 1	date 2024-07-27	rnd 1	type Blitz	result 1
		Opponent Suresh, A (Aaradhya)				Opponent Phiri, K (Kondwani)

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	Jones ,W (William)	5	0	-425	3	0	-425	1	0	-425	1	0	-425
1	Jones ,W (William)	5	1604	1179	3	1551.5	1179	1	735.8	1179	1	1399	1179
2	Potgieter ,E (Edward)	5	0.5	-340	3	0.5	-283.3	0	0	0	2	0	-425
2	Potgieter ,E (Edward)	5	1748.9	1408.9	3	1687.1	1465.5	0	0	0	2	1532.9	1323.9
3	Lin ,C (Chenyi)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
3	Lin ,C (Chenyi)	3	1698.8	1415.4	3	1694.1	1415.4	0	0	0	0	0	0
4	Price ,DR (Daelen Rowan)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
4	Price ,DR (Daelen Rowan)	3	1628	1486.3	3	1623.3	1486.3	0	0	0	0	0	0
5	Delport ,B (Ben)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
5	Delport ,B (Ben)	3	1298.3	1439.9	3	1290.3	1439.9	0	0	0	0	0	0
6	Deysel ,K (Kaleb)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
6	Deysel ,K (Kaleb)	3	1567.5	1284.1	3	1568.8	1284.1	0	0	0	0	0	0
7	Greef ,S (Schalk)	3	2	141.7	2	1	0	1	1	425	0	0	0
7	Greef ,S (Schalk)	3	1288.1	1429.7	2	1207.2	1288.1	1	725.4	1713.1	0	0	0
8	Voigt ,H (Heinrich)	3	2.5	283.3	2	1.5	212.5	0	0	0	1	1	425
8	Voigt ,H (Heinrich)	3	1333.3	1616.6	2	1241.6	1545.8	0	0	0	1	934.4	1758.3
9	Singh ,N (Nimai)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
9	Singh ,N (Nimai)	2	1409.2	1621.8	2	1408.9	1621.8	0	0	0	0	0	0
10	Fauconier ,A (Amber)	2	1	0	2	1	0	0	0	0	0	0	0
10	Fauconier ,A (Amber)	2	1250.5	1250.5	2	1240.1	1250.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Johnson, C (Caleb)

Ratings

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Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms