Chess South Africa Ratings Database

PLAYER PAGE

Personal

Harmse, J (Justin)

Chess SA id

1960191704

FIDE id

Date of birth

1996-10-19 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-13

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1260.4	1251	1160.7	1307.8
Raw rating	1260.4	1251	1160.7	1307.8
Weighted rating	1206.8	1211.4	1155.2	1224.6
Weighted performance	1241.8	0	0	0
Floor	760.4	751	700	807.8
K-factor	36	36	36	36
Min/Max rating change allowed	152.1	154.2	175.4	142.2
Highest rating	1260.4 2025-09-30	1251 2025-09-30	1200 2024-11-01	1307.8 2025-08-01
Highest raw rating	1260.4 2025-09-30	1251 2025-09-30	1200 2024-01-01	1307.8 2025-08-01
Highest weighted rating	1222.8 2024-11-01	1211.4 2025-09-30	1200 2024-11-01	1208.4 2025-08-01
Highest weighted performance	1241.8 2025-09-30	1238.5 2024-08-01	1200 2024-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1260.4	1251	1160.7	1307.8
Analysis
Rating	1260.4	1251	1160.7	1307.8
Raw rating	1260.4	1251	1160.7	1307.8
Weighted rating	1206.8	1211.4	1155.2
Weighted performance	1241.8	0	0
K-factor	36	36	36	36
Floor	760.4	751	700	807.8
Max/Min rating change allowed	152.1	154.2	175.4	142.2
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	1260.4	1251	1160.7	1307.8
New weighted rating	1211.6	1215	1155.4	1232.1
New weighted performance	1241.4	0	0	0
Temp new rating	1260.4	1251	1160.7	1307.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1260.4	1251	1160.7	1307.8
New K-factor	36	36	36	36
New floor	760.4	751	700	807.8

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	33	10	8	15
	30	19	11	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	63	29	19	15

Games since
	Main 63	Standard 29		Rapid 19		Blitz 15
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	3531		1154		325
Male	2735		900		261
Adult	594		196		84
Adult Male	542		180		79
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	271		88		50
Male	257		80		44
Adult	188		60		32
Adult Male	181		57		30


	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	33	11.5	34.85	-128.8	1424.8	1296
Standard	10	4.5	45	-42.5	1387.4	1344.9
Rapid	8	1	12.5	-318.8	1434.9	1116.2
Blitz	15	6	40	-85	1444.3	1359.3
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	63	18.5	29.37	-175.4	1417.2	1241.9
Standard	29	9.5	32.76	-146.6	1406	1259.5
Rapid	19	3	15.79	-290.8	1413	1122.2
Blitz	15	6	40	-85	1444.3	1359.3

Date	Main	Standard	Rapid	Blitz
2025-09-30	1260.4	1251	1160.7	1307.8
2025-09-01	1227.8	1212.8	1160.7	1307.8
2025-08-01	1227.8	1212.8	1160.7	1307.8
2025-07-01	1203.3	1212.8	1157.9	1199.7
2025-06-01	1222.8	1234.3	1157.9	1199.7
2025-05-01	1222.8	1234.3	1157.9	1199.7
2025-04-01	1191	1202.2	1157.9	1199.7
2025-03-01	1190.2	1202.2	1156.9	1199.6
2025-02-01	1192.5	1202.2	1159.1	1197.4
2025-01-01	1195.6	1202.2	1143.2	1200
2024-12-01	1195.6	1202.2	1143.2	1200
2024-11-01	1197.1	1204	1143.2	1200
2024-10-01	1195.6	1204	1143.2	1200
2024-09-01	1195.6	1204	1143.2	1200
2024-08-01	1179.1	1188.4	1143.2	1200
2024-07-01	1179.1	1188.4	1143.2	1200
2024-06-01	1179.3	1188.4	1157.6	1200
2024-08-01	1183.8	1200	1157.6	1200
2024-04-01	1183.8	1200	1157.6	1200
2024-03-01	1183.8	1200	1157.6	1200
2024-02-01	1183.8	1200	1157.6	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	1200

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	Tshwane Chess Club Clash 2025 (Open)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
2	Randburg Chess Club Winter Rapid 2025	2025-07-15	2025-07-22	Rapid	Johannesburg Metro (GJM)	6	5	1	Yes	Analysis
3	Randburg Club Champs Blitz 2025	2025-07-08	2025-07-08	Blitz	Johannesburg Metro (GJM)	7	7	4	Yes	Analysis
4	Neil Savage Memorial Randburg Club Champs 2025	2025-05-06	2025-06-24	Standard	Johannesburg Metro (GJM)	8	2	0	Yes	Analysis
5	Randburg Chess Club New Year Swiss 2025	2025-02-11	2025-04-01	Standard	Johannesburg Metro (GJM)	8	3	2	Yes	Analysis
6	Randburg Chess Club New Year Rapid 2025	2025-01-28	2025-02-04	Rapid	Johannesburg Metro (GJM)	6	3	0	Yes	Analysis
7	Randburg New Year Blitz 2025	2025-01-21	2025-01-21	Blitz	Johannesburg Metro (GJM)	9	8	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Tshwane Chess Club Clash 2025 (Open)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
2	Randburg Chess Club Winter Rapid 2025	2025-07-15	2025-07-22	Rapid	Johannesburg Metro (GJM)	6	5	1	Yes	Analysis
3	Randburg Club Champs Blitz 2025	2025-07-08	2025-07-08	Blitz	Johannesburg Metro (GJM)	7	7	4	Yes	Analysis
4	Neil Savage Memorial Randburg Club Champs 2025	2025-05-06	2025-06-24	Standard	Johannesburg Metro (GJM)	8	2	0	Yes	Analysis
5	Randburg Chess Club New Year Swiss 2025	2025-02-11	2025-04-01	Standard	Johannesburg Metro (GJM)	8	3	2	Yes	Analysis
6	Randburg Chess Club New Year Rapid 2025	2025-01-28	2025-02-04	Rapid	Johannesburg Metro (GJM)	6	3	0	Yes	Analysis
7	Randburg New Year Blitz 2025	2025-01-21	2025-01-21	Blitz	Johannesburg Metro (GJM)	9	8	2	Yes	Analysis
8	Randburg Summer Swiss 2024	2024-10-29	2024-11-26	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
9	Randburg Spring Swiss 2024	2024-08-20	2024-10-08	Standard	Johannesburg Metro (GJM)	7	6	2	Yes	Analysis
10	Randburg Chess Club Winter Swiss 2024	2024-06-11	2024-07-30	Standard	Johannesburg Metro (GJM)	7	4	1	Yes	Analysis
11	Randburg Autumn Rapid 2024	2024-05-28	2024-06-04	Rapid	Johannesburg Metro (GJM)	6	5	1	Yes	Analysis
12	Randburg Chess Club Championship 2024	2024-04-09	2024-05-21	Standard	Johannesburg Metro (GJM)	7	5	1	Yes	Analysis
13	Randburg New Year Rapid 2024	2024-01-23	2024-01-30	Rapid	Johannesburg Metro (GJM)	6	6	1	Yes	Analysis

#	Games	Start				End
1	4	Tournament Randburg Club Champs Blitz 2025				Tournament Randburg Club Champs Blitz 2025
		date 2025-07-08	rnd 3	type Blitz	result 1	date 2025-07-08	rnd 6	type Blitz	result 1
		Opponent Cembi, L (Lwazi)				Opponent Jolliffe, SR (Shaun)
2	2	Tournament Tshwane Chess Club Clash 2025				Tournament Tshwane Chess Club Clash 2025
		date 2025-09-13	rnd 2	type Standard	result 1	date 2025-09-13	rnd 3	type Standard	result 0.5
		Opponent Molomo, K (Khumo)				Opponent Adamson, A (Amani)
3	2	Tournament Randburg Chess Club New Year Swiss 2025				Tournament Randburg Chess Club New Year Swiss 2025
		date 2025-03-18	rnd 6	type Standard	result 1	date 2025-03-25	rnd 7	type Standard	result 1
		Opponent Sinha, A (Anurag)				Opponent Goldberg, M (Mark)

#	Games	Start				End
1	2	Tournament Tshwane Chess Club Clash 2025				Tournament Tshwane Chess Club Clash 2025
		date 2025-09-13	rnd 2	type Standard	result 1	date 2025-09-13	rnd 3	type Standard	result 0.5
		Opponent Molomo, K (Khumo)				Opponent Adamson, A (Amani)
2	2	Tournament Randburg Chess Club New Year Swiss 2025				Tournament Randburg Chess Club New Year Swiss 2025
		date 2025-03-18	rnd 6	type Standard	result 1	date 2025-03-25	rnd 7	type Standard	result 1
		Opponent Sinha, A (Anurag)				Opponent Goldberg, M (Mark)
3	1	Tournament Tshwane Chess Club Clash 2025				Tournament Tshwane Chess Club Clash 2025
		date 2025-09-13	rnd 5	type Standard	result 1	date 2025-09-13	rnd 5	type Standard	result 1
		Opponent Mokokoane, NK (Ntsoeu�Keketso)				Opponent Mokokoane, NK (Ntsoeu�Keketso)

#	Games	Start				End
1	1	Tournament Randburg Chess Club Winter Rapid 2025				Tournament Randburg Chess Club Winter Rapid 2025
		date 2025-07-22	rnd 5	type Rapid	result 1	date 2025-07-22	rnd 5	type Rapid	result 1
		Opponent Jones, M (Michael)				Opponent Jones, M (Michael)
2	1	Tournament Randburg Autumn Rapid 2024				Tournament Randburg Autumn Rapid 2024
		date 2024-06-04	rnd 5	type Rapid	result 1	date 2024-06-04	rnd 5	type Rapid	result 1
		Opponent Madzuhe, O (Oscar)				Opponent Madzuhe, O (Oscar)
3	1	Tournament Randburg New Year Rapid 2024				Tournament Randburg New Year Rapid 2024
		date 2024-01-30	rnd 4	type Rapid	result 1	date 2024-01-30	rnd 4	type Rapid	result 1
		Opponent Cheyne, M (Mark)				Opponent Cheyne, M (Mark)

#	Games	Start				End
1	4	Tournament Randburg Club Champs Blitz 2025				Tournament Randburg Club Champs Blitz 2025
		date 2025-07-08	rnd 3	type Blitz	result 1	date 2025-07-08	rnd 6	type Blitz	result 1
		Opponent Cembi, L (Lwazi)				Opponent Jolliffe, SR (Shaun)
2	1	Tournament Randburg New Year Blitz 2025				Tournament Randburg New Year Blitz 2025
		date 2025-01-21	rnd 6	type Blitz	result 1	date 2025-01-21	rnd 6	type Blitz	result 1
		Opponent Kruger, I (Ivan)				Opponent Kruger, I (Ivan)
3	1	Tournament Randburg New Year Blitz 2025				Tournament Randburg New Year Blitz 2025
		date 2025-01-21	rnd 4	type Blitz	result 1	date 2025-01-21	rnd 4	type Blitz	result 1
		Opponent Mngomezulu, M (Mtuthuko)				Opponent Mngomezulu, M (Mtuthuko)

#	Games	Start				End
1	4	Tournament Randburg Club Champs Blitz 2025				Tournament Randburg Club Champs Blitz 2025
		date 2025-07-08	rnd 3	type Blitz	result 1	date 2025-07-08	rnd 6	type Blitz	result 1
		Opponent Cembi, L (Lwazi)				Opponent Jolliffe, SR (Shaun)
2	2	Tournament Randburg Chess Club New Year Swiss 2025				Tournament Randburg Chess Club New Year Swiss 2025
		date 2025-03-18	rnd 6	type Standard	result 1	date 2025-03-25	rnd 7	type Standard	result 1
		Opponent Sinha, A (Anurag)				Opponent Goldberg, M (Mark)
3	1	Tournament Tshwane Chess Club Clash 2025				Tournament Tshwane Chess Club Clash 2025
		date 2025-09-13	rnd 5	type Standard	result 1	date 2025-09-13	rnd 5	type Standard	result 1
		Opponent Mokokoane, NK (Ntsoeu�Keketso)				Opponent Mokokoane, NK (Ntsoeu�Keketso)

#	Games	Start				End
1	2	Tournament Randburg Chess Club New Year Swiss 2025				Tournament Randburg Chess Club New Year Swiss 2025
		date 2025-03-18	rnd 6	type Standard	result 1	date 2025-03-25	rnd 7	type Standard	result 1
		Opponent Sinha, A (Anurag)				Opponent Goldberg, M (Mark)
2	1	Tournament Tshwane Chess Club Clash 2025				Tournament Tshwane Chess Club Clash 2025
		date 2025-09-13	rnd 5	type Standard	result 1	date 2025-09-13	rnd 5	type Standard	result 1
		Opponent Mokokoane, NK (Ntsoeu�Keketso)				Opponent Mokokoane, NK (Ntsoeu�Keketso)
3	1	Tournament Tshwane Chess Club Clash 2025				Tournament Tshwane Chess Club Clash 2025
		date 2025-09-13	rnd 2	type Standard	result 1	date 2025-09-13	rnd 2	type Standard	result 1
		Opponent Molomo, K (Khumo)				Opponent Molomo, K (Khumo)

#	Games	Start				End
1	1	Tournament Randburg Chess Club Winter Rapid 2025				Tournament Randburg Chess Club Winter Rapid 2025
		date 2025-07-22	rnd 5	type Rapid	result 1	date 2025-07-22	rnd 5	type Rapid	result 1
		Opponent Jones, M (Michael)				Opponent Jones, M (Michael)
2	1	Tournament Randburg Autumn Rapid 2024				Tournament Randburg Autumn Rapid 2024
		date 2024-06-04	rnd 5	type Rapid	result 1	date 2024-06-04	rnd 5	type Rapid	result 1
		Opponent Madzuhe, O (Oscar)				Opponent Madzuhe, O (Oscar)
3	1	Tournament Randburg New Year Rapid 2024				Tournament Randburg New Year Rapid 2024
		date 2024-01-30	rnd 4	type Rapid	result 1	date 2024-01-30	rnd 4	type Rapid	result 1
		Opponent Cheyne, M (Mark)				Opponent Cheyne, M (Mark)

#	Games	Start				End
1	4	Tournament Randburg Club Champs Blitz 2025				Tournament Randburg Club Champs Blitz 2025
		date 2025-07-08	rnd 3	type Blitz	result 1	date 2025-07-08	rnd 6	type Blitz	result 1
		Opponent Cembi, L (Lwazi)				Opponent Jolliffe, SR (Shaun)
2	1	Tournament Randburg New Year Blitz 2025				Tournament Randburg New Year Blitz 2025
		date 2025-01-21	rnd 6	type Blitz	result 1	date 2025-01-21	rnd 6	type Blitz	result 1
		Opponent Kruger, I (Ivan)				Opponent Kruger, I (Ivan)
3	1	Tournament Randburg New Year Blitz 2025				Tournament Randburg New Year Blitz 2025
		date 2025-01-21	rnd 4	type Blitz	result 1	date 2025-01-21	rnd 4	type Blitz	result 1
		Opponent Mngomezulu, M (Mtuthuko)				Opponent Mngomezulu, M (Mtuthuko)

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	Tracey ,T (Terence)	5	0	-425	3	0	-425	2	0	-425	0	0	0
1	Tracey ,T (Terence)	5	1317.5	892.5	3	1381	892.5	2	1212.6	892.5	0	0	0
2	Luchies ,M (Maria)	3	3	425	3	3	425	0	0	0	0	0	0
2	Luchies ,M (Maria)	3	1245.1	1670.1	3	1221.2	1670.1	0	0	0	0	0	0
3	Mungal ,Z (Zoey)	3	0	-425	2	0	-425	1	0	-425	0	0	0
3	Mungal ,Z (Zoey)	3	1524.9	1099.9	2	1554.9	1099.9	1	1343.8	1099.9	0	0	0
4	Sparks ,SJW (Stephen)	3	0	-425	1	0	-425	2	0	-425	0	0	0
4	Sparks ,SJW (Stephen)	3	1508.5	1083.5	1	1475.5	1083.5	2	1594.9	1083.5	0	0	0
5	Martynov ,A (Alexey)	3	0	-425	1	0	-425	1	0	-425	1	0	-425
5	Martynov ,A (Alexey)	3	1486.8	1061.8	1	1399.4	1061.8	1	1302.2	1061.8	1	1274.5	1061.8
6	Assabi ,O (Ofer)	3	1	-141.7	1	0	-425	1	0	-425	1	1	425
6	Assabi ,O (Ofer)	3	1574.3	1432.7	1	1532.1	1149.3	1	1703.6	1149.3	1	1653.3	1999.3
7	Loon ,M (Marc)	3	0	-425	1	0	-425	1	0	-425	1	0	-425
7	Loon ,M (Marc)	3	1455.9	1030.9	1	1476.1	1030.9	1	1330.7	1030.9	1	1320.5	1030.9
8	Hangelbroek ,P (Peter)	3	0	-425	0	0	0	1	0	-425	2	0	-425
8	Hangelbroek ,P (Peter)	3	1497.2	1072.2	0	0	0	1	1512	1072.2	2	1604.1	1072.2
9	Goldberg ,M (Mark)	2	2	425	2	2	425	0	0	0	0	0	0
9	Goldberg ,M (Mark)	2	1084.4	1509.4	2	1074.9	1509.4	0	0	0	0	0	0
10	Ngubeni ,JM (Jackie)	2	0	-425	1	0	-425	1	0	-425	0	0	0
10	Ngubeni ,JM (Jackie)	2	1569.9	1144.9	1	1587	1144.9	1	1582.1	1144.9	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Harmse, J (Justin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms