Chess South Africa Ratings Database

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Personal

Johnson, B (Brian)

Chess SA id

1150193579

FIDE id

534005323

Date of birth

2015-08-19 (U12)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-12-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1593.6	1593.6	1521	1200
Raw rating	1593.6	1575.6	1521	1200
Weighted rating	1474.8	1415.8	1469.8	1200
Weighted performance	1573.8	1597.8	1496.8	0
Floor	1093.6	1075.6	1058.4	700
K-factor	32	32	32	36
Min/Max rating change allowed	94.6	97.1	105	165.8
Highest rating	1607.4 2025-09-01	1593.6 2026-01-01	1558.4 2025-09-01	1200 2024-02-01
Highest raw rating	1593.6 2026-01-01	1575.6 2026-01-01	1558.4 2025-09-01	1200 2024-02-01
Highest weighted rating	1525.3 2024-10-01	1478 2024-10-01	1524.7 2024-10-01	1200 2024-02-01
Highest weighted performance	1614.1 2025-09-01	1597.8 2026-01-01	1538.6 2025-09-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-23.6	-47.5	0	0
New rating	1569.9	1546.2	1521	1200
Analysis
Rating	1593.6	1593.6	1521	1200
Raw rating	1593.6	1575.6	1521	1200
Weighted rating	1474.8	1415.8	1469.8
Weighted performance	1573.8	1597.8	1496.8
K-factor	32	32	32	36
Floor	1093.6	1075.6	1058.4	700
Max/Min rating change allowed	94.6	97.1	105	165.8
Games	5	5	0	0
Score	2.5	2.5	0	0
Expected score	3.24	3.42	0	0
Score-Expected	-0.74	-0.92	0	0
Temp raw +/-	-23.6	-29.4	0	0
Final raw +/-	-23.6	-29.4	0	0
New raw rating	1569.9	1546.2	1521	1200
New weighted rating	1487.7	1431.4	1478.8	1200
New weighted performance	1531.4	1540.9	1486.9	0
Temp new rating	1569.9	1546.2	1521	1200
Temp new rating +/-	-23.6	-47.5	0	0
Final new rating +/-	-23.6	-47.5	0	0
New rating	1569.9	1546.2	1521	1200
New K-factor	32	32	32	36
New floor	1093.6	1075.6	1058.4	700

Item	Main	Standard	Rapid
	0	0	0
	113	58	55
	92	35	57
	0	0	0
	0	0	0
	0	0	0
History	205	93	112

Games since
	Main 205	Standard 93		Rapid 112		Blitz 0
Gender	Male
Age group	U12
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1067		334		188
Male	927		286		161
U12	94		31		16
U12 Male	74		24		12
Standard
	RSA		Province		Region
Overall	1344		369		203
Male	1134		300		170
U12	138		35		19
U12 Male	101		24		14
Rapid
	RSA		Province		Region
Overall	172		81		44
Male	159		75		43
U12	16		10		6
U12 Male	15		9		6
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	113	79	69.91	169.2	1355.2	1524.5
Standard	58	38.5	66.38	139.2	1366.9	1506.1
Rapid	55	40.5	73.64	200.9	1342.9	1543.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	205	135	65.85	134.8	1317.3	1452.1
Standard	93	56.5	60.75	91.4	1334.9	1426.3
Rapid	112	78.5	70.09	170.8	1302.7	1473.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1593.6	1575.6	1521	1200
2025-11-30	1526.5	1482.8	1531.2	1200
2025-11-01	1526.5	1482.8	1531.2	1200
2025-09-30	1579	1513.8	1558.4	1200
2025-09-01	1579	1513.8	1558.4	1200
2025-08-01	1499.1	1455.3	1499.1	1200
2025-07-01	1515.1	1471.6	1499.1	1200
2025-06-01	1525.3	1478	1499.1	1200
2025-05-01	1461.6	1428.3	1458.4	1200
2025-04-01	1442.5	1428.3	1429.8	1200
2025-03-01	1514.6	1404.3	1524.7	1200
2025-02-01	1415.8	1304.1	1453	1200
2025-01-01	1368.6	1277.2	1392.1	1200
2024-12-01	1381.8	1277.2	1429.2	1200
2024-11-01	1374.3	1277.2	1421.8	1200
2024-10-01	1356.7	1261	1436.2	1200
2024-09-01	1448.4	1311.6	1329.8	1200
2024-11-01	1344.9	1235.3	1329.8	1200
2024-07-01	1265.7	1235.3	1261.4	1200
2024-06-01	1227.2	1189.6	1261.4	1200
2024-05-01	1212.5	1189.6	1241.6	1200
2024-04-01	1212.5	1189.6	1241.6	1200
2024-03-01	1218.6	1221.6	1200	1200
2024-02-01	1200	1200	1200	1200

Comming soon.

Tournaments

History

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (U11 Mixed)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (U11 Mixed)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (U11 Mixed)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis
2	2025 Mzansi Individual Championships (U12 Open)	2025-12-17	2025-12-20	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
3	2025 Mzansi Inter Provincial Team Championships (U12 Combined)	2025-12-15	2025-12-17	Standard	Nelson Mandela Bay (ENM)	6	6	5.5	Yes	Analysis
4	Six Gun Grill Summer Sport Festival Chess Championships 2025 (Individual U11 Boys)	2025-12-09	2025-12-09	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
5	Six Gun Grill Summer Sport Festival Chess Championships 2025 (Team U11)	2025-12-08	2025-12-08	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
6	Kraaifontein Open 2025 (Junior Rapid U12)	2025-12-06	2025-12-06	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
7	A & A Invitational Chess Tournament 2025 (U12+U14)	2025-11-29	2025-11-29	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
8	Gordons Bay Primary Chess Championship 2025 (Open)	2025-10-25	2025-10-25	Rapid	Cape Town (WCT)	5	0	0	No	Analysis
9	Curro Hermanus Spring Open 2025 (U11 Boys)	2025-10-18	2025-10-18	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
10	Cape Town Chess Federation Club League 2025 (E)	2025-08-16	2025-08-23	Standard	Cape Town (WCT)	6	4	2	Yes	Analysis
11	Kleinmond Chess Club Open 2025 (U10)	2025-08-30	2025-08-30	Rapid	Overberg (WOS)	6	6	6	Yes	Analysis
12	Western Cape Women�s Championship 2025 (U12)	2025-08-09	2025-08-09	Standard	West Coast (WCU)	5	5	4	Yes	Analysis
13	Cape Town Metro North Top Schools 2025 (U11)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
14	Cape Winelands Open 2025 (U12)	2025-07-19	2025-07-19	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
15	Cape Town Chess Junior League 2025 (U12)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	5	2	Yes	Analysis
16	St John's CBC Rapid 2025 (U10)	2025-05-24	2025-05-24	Rapid	Cape Town (WCT)	6	6	6	Yes	Analysis
17	Western Cape Schools Individual Championship 2025 (U11 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
18	West Coast And Mykonos Open 2025 (U12)	2025-05-02	2025-05-04	Standard	West Coast (WCU)	5	5	4	Yes	Analysis
19	Rylib Autumn Slam 2025 (Intermediate)	2025-04-26	2025-04-26	Rapid	Cape Town (WCT)	6	5	1.5	Yes	Analysis
20	Hermanus Chess Club Open 2025 (U10)	2025-04-12	2025-04-12	Rapid	Overberg (WOS)	7	7	6	Yes	Analysis
21	Steinitz Festival 2025 (Open)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	7	2	Yes	Analysis
22	Western Cape Closed 2025 (U12)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
23	CT Metro Schools Individual Closed 2025 (U11 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
24	Cape of Good Hope Open 2025 (U10)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
25	Laerskool Welgemoed Rapid 2025 (U12)	2025-02-15	2025-02-15	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
26	CT Metro North Schools Chess Individual Trials 2025 (U11 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
27	Helderberg Chess Club PS Development Tournament 2025 (U11 Boys)	2025-01-25	2025-01-25	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
28	2025 Kraaifontein Open Chess Championships (U12 Rapid)	2025-01-04	2025-01-04	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
29	Rylib Summer Slam 2024 (Open)	2024-12-03	2024-12-03	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
30	Chess Challengers Championship 2024 (U10)	2024-11-23	2024-11-23	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
31	Laerskool Welgemoed Rapid 2024 (U10)	2024-10-19	2024-10-19	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
32	Chess Elevation Series - October 2024 (Level 2)	2024-10-25	2024-10-26	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
33	UCT Open Chess Championship 2024 (U10)	2024-10-12	2024-10-13	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
34	Spring Slam 2024 (B)	2024-10-05	2024-10-05	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
35	Chess Elevation Series -September 2024 (Level 3)	2024-09-20	2024-09-21	Standard	Cape Town (WCT)	5	5	0.5	Yes	Analysis
36	CT League 2024 (D)	2024-08-03	2024-08-03	Standard	Cape Town (WCT)	6	4	2	Yes	Analysis
37	CBC Rapid Chess Tournament 2024 (U10)	2024-09-14	2024-09-14	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
38	Kleinmond Chess Club Open 2024 (U10)	2024-09-07	2024-09-07	Rapid	Overberg (WOS)	6	6	4.5	Yes	Analysis
39	Western Cape Women�s Championship 2024 (U10)	2024-08-09	2024-08-09	Standard	West Coast (WCU)	5	5	4.5	Yes	Analysis
40	CT District North Top Schools 2024 (U9 Mixed)	2024-07-27	2024-07-27	Rapid	Cape Town (WCT)	5	4	4	Yes	Analysis
41	Cape Town Chess Federation Closed Chess Championships 2024 (U10)	2024-06-15	2024-06-15	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
42	Steinitz Chess Festival 2024 (U10)	2024-05-11	2024-05-11	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
43	Chas Everitt and MHI Attorneys Rapid 2024 (U10)	2024-03-09	2024-03-09	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
44	Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
45	North District School Trials 2024 (U9 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis

#	Games	Start				End
1	10	Tournament Western Cape Women�s Championship 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-08-09	rnd 1	type Standard	result 1	date 2024-09-07	rnd 5	type Rapid	result 0.5
		Opponent Akemdien, A (Alex)				Opponent Walters, N (Nicola)
2	9	Tournament Western Cape Schools Individual Championship 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-17	rnd 4	type Standard	result 1	date 2025-05-24	rnd 6	type Rapid	result 1
		Opponent Gebuza, L (Lufiko)				Opponent Ghamlouche, I (Isabelle)
3	6	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 1	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Thompson, M (Mondray)				Opponent Akemdien, A (Alex)

#	Games	Start				End
1	5	Tournament Cape Town Metro North Top Schools 2025				Tournament Western Cape Women�s Championship 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-09	rnd 3	type Standard	result 1
		Opponent He, L (Lily)				Opponent Langenhoven, J (Jasmin-Grace)
2	5	Tournament Helderberg Chess Club PS Development Tournament 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-01-25	rnd 5	type Standard	result 1	date 2025-02-09	rnd 4	type Standard	result 1
		Opponent Van Der Spuy, D (Daniel)				Opponent Van Der Merwe, S (Schalk Wolf)
3	5	Tournament Western Cape Women�s Championship 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-08-09	rnd 1	type Standard	result 1	date 2024-08-09	rnd 5	type Standard	result 1
		Opponent Akemdien, A (Alex)				Opponent Ramonyaluoe, M (Madalitso)

#	Games	Start				End
1	14	Tournament Rylib Autumn Slam 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-04-26	rnd 5	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Meissenheimer, K (Kyle)				Opponent Akemdien, A (Alex)
2	9	Tournament CT District North Top Schools 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-07-27	rnd 1	type Rapid	result 1	date 2024-09-07	rnd 5	type Rapid	result 0.5
		Opponent Muller, S (Sebastiaan)				Opponent Walters, N (Nicola)
3	5	Tournament 2025 Kraaifontein Open Chess Championships				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-01-04	rnd 4	type Rapid	result 1	date 2025-02-15	rnd 2	type Rapid	result 1
		Opponent Van Der Spuy, D (Daniel)				Opponent Indhull, N (Nikita)

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament Western Cape Schools Individual Championship 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-17	rnd 4	type Standard	result 1	date 2025-05-24	rnd 6	type Rapid	result 1
		Opponent Gebuza, L (Lufiko)				Opponent Ghamlouche, I (Isabelle)
2	7	Tournament Western Cape Women�s Championship 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-09	rnd 5	type Standard	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Viljoen, A (Adrihan)				Opponent Akemdien, A (Alex)
3	5	Tournament Cape Town Metro North Top Schools 2025				Tournament Western Cape Women�s Championship 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-09	rnd 3	type Standard	result 1
		Opponent He, L (Lily)				Opponent Langenhoven, J (Jasmin-Grace)

#	Games	Start				End
1	5	Tournament Cape Town Metro North Top Schools 2025				Tournament Western Cape Women�s Championship 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-09	rnd 3	type Standard	result 1
		Opponent He, L (Lily)				Opponent Langenhoven, J (Jasmin-Grace)
2	5	Tournament Helderberg Chess Club PS Development Tournament 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-01-25	rnd 5	type Standard	result 1	date 2025-02-09	rnd 4	type Standard	result 1
		Opponent Van Der Spuy, D (Daniel)				Opponent Van Der Merwe, S (Schalk Wolf)
3	4	Tournament Cape Winelands Open 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-07-19	rnd 4	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Li, H (Haochen)				Opponent Barendse, J (Jayden)

#	Games	Start				End
1	12	Tournament St John's CBC Rapid 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-05-24	rnd 1	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Matoti, L (Lulo)				Opponent Akemdien, A (Alex)
2	8	Tournament CT District North Top Schools 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-07-27	rnd 1	type Rapid	result 1	date 2024-09-07	rnd 4	type Rapid	result 1
		Opponent Muller, S (Sebastiaan)				Opponent Coetzer, R (Rossouw)
3	5	Tournament 2025 Kraaifontein Open Chess Championships				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-01-04	rnd 4	type Rapid	result 1	date 2025-02-15	rnd 2	type Rapid	result 1
		Opponent Van Der Spuy, D (Daniel)				Opponent Indhull, N (Nikita)

No games found.

#	Games	Start				End

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	Beukes ,B (Benjamin)	7	3	-60.7	3	0	-425	4	3	212.5	0	0	0
1	Beukes ,B (Benjamin)	7	1391.4	1330.6	3	1360.3	966.4	4	1367.2	1603.9	0	0	0
2	Van Der Merwe ,S (Schalk Wolf)	5	1	-255	2	1	0	3	0	-425	0	0	0
2	Van Der Merwe ,S (Schalk Wolf)	5	1599	1344	2	1613.1	1599	3	1678.2	1174	0	0	0
3	Stern ,M (Mason)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	Stern ,M (Mason)	3	1771.5	1346.5	3	1764.1	1346.5	0	0	0	0	0	0
4	Griesel ,J (Jason)	3	2	141.7	2	1	0	1	1	425	0	0	0
4	Griesel ,J (Jason)	3	1377.5	1519.2	2	1304.1	1377.5	1	1351.4	1802.5	0	0	0
5	Mzizana ,U (Ulungile)	3	3	425	1	1	425	2	2	425	0	0	0
5	Mzizana ,U (Ulungile)	3	1260.4	1685.4	1	1200	1685.4	2	1280.5	1685.4	0	0	0
6	Zhang ,M (Ming Xuan Jesse)	3	3	425	1	1	425	2	2	425	0	0	0
6	Zhang ,M (Ming Xuan Jesse)	3	1362.3	1787.3	1	1341.1	1787.3	2	1375.3	1787.3	0	0	0
7	Akemdien ,A (Alex)	3	2	141.7	1	1	425	2	1	0	0	0	0
7	Akemdien ,A (Alex)	3	1445.2	1586.9	1	1187.8	1870.2	2	1474.9	1445.2	0	0	0
8	Nel ,M (Mattheus Johan)	3	3	425	0	0	0	3	3	425	0	0	0
8	Nel ,M (Mattheus Johan)	3	1211.1	1636.1	0	0	0	3	1231.5	1636.1	0	0	0
9	Wiggill ,H (Handre)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Wiggill ,H (Handre)	2	1265.4	840.4	2	1247.6	840.4	0	0	0	0	0	0
10	Manning ,C (Callan)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Manning ,C (Callan)	2	1603.2	1178.2	2	1574.9	1178.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Johnson, B (Brian)

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Last 24 raw ratings

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Top 3 Streaks

Top 10 opponents most often played

Norms