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

2025-10-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1292.8	1307.5	1153	1243.7
Raw rating	1292.8	1307.5	1131.5	1243.7
Weighted rating	1214.2	1219.5	1153	1227
Weighted performance	1174.2	0	0	0
Floor	792.8	807.5	700	807.8
K-factor	36	36	36	36
Min/Max rating change allowed	145.3	142.3	182.8	155.8
Highest rating	1292.8 2025-11-01	1307.5 2025-11-01	1200 2024-11-01	1307.8 2025-08-01
Highest raw rating	1292.8 2025-11-01	1307.5 2025-11-01	1200 2024-01-01	1307.8 2025-08-01
Highest weighted rating	1222.8 2024-11-01	1219.5 2025-11-01	1200 2024-11-01	1227 2025-11-01
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	-2	0
New rating	1292.8	1307.5	1151	1243.7
Analysis
Rating	1292.8	1307.5	1153	1243.7
Raw rating	1292.8	1307.5	1131.5	1243.7
Weighted rating	1214.2	1219.5	1153
Weighted performance	1174.2	0	0
K-factor	36	36	36	36
Floor	792.8	807.5	700	807.8
Max/Min rating change allowed	145.3	142.3	182.8	155.8
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	1292.8	1307.5	1131.5	1243.7
New weighted rating	1221.3	1227.2	1151	1229.3
New weighted performance	1167.2	0	0	0
Temp new rating	1292.8	1307.5	1151	1243.7
Temp new rating +/-	0	0	-2	0
Final new rating +/-	0	0	-2	0
New rating	1292.8	1307.5	1151	1243.7
New K-factor	36	36	36	36
New floor	792.8	807.5	700	807.8

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	46	14	11	21
	30	19	11	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	76	33	22	21

Games since
	Main 76	Standard 33		Rapid 22		Blitz 21
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	3338		1115		313
Male	2603		863		254
Adult	601		189		81
Adult Male	548		174		76
Standard
	RSA		Province		Region
Overall	3106		1118		307
Male	2443		880		250
Adult	547		180		72
Adult Male	499		167		67
Rapid
	RSA		Province		Region
Overall	1851		310		132
Male	1375		229		108
Adult	247		81		53
Adult Male	229		75		50
Blitz
	RSA		Province		Region
Overall	378		126		73
Male	352		114		66
Adult	224		77		44
Adult Male	216		74		42


	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	46	15	32.61	-147.8	1430	1282.1
Standard	14	7	50	0	1402.2	1402.2
Rapid	11	1	9.09	-347.7	1450	1102.2
Blitz	21	7	33.33	-141.7	1438	1296.3
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	76	22	28.95	-178.9	1421.7	1242.7
Standard	33	12	36.36	-115.9	1410.1	1294.2
Rapid	22	3	13.64	-309.1	1423.5	1114.5
Blitz	21	7	33.33	-141.7	1438	1296.3

Date	Main	Standard	Rapid	Blitz
2025-11-01	1292.8	1307.5	1131.5	1243.7
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
2024-09-01	1179.3	1188.4	1157.6	1200
2024-05-01	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

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	Randburg Chess Club Rapid Championship 2025	2025-09-30	2025-10-07	Rapid	Johannesburg Metro (GJM)	6	3	0	Yes	Analysis
2	Randburg Winter Swiss 2025	2025-07-29	2025-09-16	Standard	Johannesburg Metro (GJM)	8	4	2.5	Yes	Analysis
3	Randburg Spring Blitz 2025	2025-09-23	2025-09-23	Blitz	Johannesburg Metro (GJM)	7	6	1	Yes	Analysis
4	Tshwane Chess Club Clash 2025 (Open)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
5	Randburg Chess Club Winter Rapid 2025	2025-07-15	2025-07-22	Rapid	Johannesburg Metro (GJM)	6	5	1	Yes	Analysis
6	Randburg Club Champs Blitz 2025	2025-07-08	2025-07-08	Blitz	Johannesburg Metro (GJM)	7	7	4	Yes	Analysis
7	Neil Savage Memorial Randburg Club Champs 2025	2025-05-06	2025-06-24	Standard	Johannesburg Metro (GJM)	8	2	0	Yes	Analysis
8	Randburg Chess Club New Year Swiss 2025	2025-02-11	2025-04-01	Standard	Johannesburg Metro (GJM)	8	3	2	Yes	Analysis
9	Randburg Chess Club New Year Rapid 2025	2025-01-28	2025-02-04	Rapid	Johannesburg Metro (GJM)	6	3	0	Yes	Analysis
10	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	Randburg Chess Club Rapid Championship 2025	2025-09-30	2025-10-07	Rapid	Johannesburg Metro (GJM)	6	3	0	Yes	Analysis
2	Randburg Winter Swiss 2025	2025-07-29	2025-09-16	Standard	Johannesburg Metro (GJM)	8	4	2.5	Yes	Analysis
3	Randburg Spring Blitz 2025	2025-09-23	2025-09-23	Blitz	Johannesburg Metro (GJM)	7	6	1	Yes	Analysis
4	Tshwane Chess Club Clash 2025 (Open)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
5	Randburg Chess Club Winter Rapid 2025	2025-07-15	2025-07-22	Rapid	Johannesburg Metro (GJM)	6	5	1	Yes	Analysis
6	Randburg Club Champs Blitz 2025	2025-07-08	2025-07-08	Blitz	Johannesburg Metro (GJM)	7	7	4	Yes	Analysis
7	Neil Savage Memorial Randburg Club Champs 2025	2025-05-06	2025-06-24	Standard	Johannesburg Metro (GJM)	8	2	0	Yes	Analysis
8	Randburg Chess Club New Year Swiss 2025	2025-02-11	2025-04-01	Standard	Johannesburg Metro (GJM)	8	3	2	Yes	Analysis
9	Randburg Chess Club New Year Rapid 2025	2025-01-28	2025-02-04	Rapid	Johannesburg Metro (GJM)	6	3	0	Yes	Analysis
10	Randburg New Year Blitz 2025	2025-01-21	2025-01-21	Blitz	Johannesburg Metro (GJM)	9	8	2	Yes	Analysis
11	Randburg Summer Swiss 2024	2024-10-29	2024-11-26	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
12	Randburg Spring Swiss 2024	2024-08-20	2024-10-08	Standard	Johannesburg Metro (GJM)	7	6	2	Yes	Analysis
13	Randburg Chess Club Winter Swiss 2024	2024-06-11	2024-07-30	Standard	Johannesburg Metro (GJM)	7	4	1	Yes	Analysis
14	Randburg Autumn Rapid 2024	2024-05-28	2024-06-04	Rapid	Johannesburg Metro (GJM)	6	5	1	Yes	Analysis
15	Randburg Chess Club Championship 2024	2024-04-09	2024-05-21	Standard	Johannesburg Metro (GJM)	7	5	1	Yes	Analysis
16	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	3	Tournament Randburg Winter Swiss 2025				Tournament Randburg Winter Swiss 2025
		date 2025-08-12	rnd 3	type Standard	result 1	date 2025-09-09	rnd 7	type Standard	result 1
		Opponent Nzuza, M (Mduduzi)				Opponent Tracey, T (Terence)
3	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)

#	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)	7	1	-303.6	4	1	-212.5	2	0	-425	1	0	-425
1	Tracey ,T (Terence)	7	1322	1018.4	4	1373.4	1109.5	2	1212.6	897	1	1258.1	897
2	Martynov ,A (Alexey)	4	0	-425	1	0	-425	2	0	-425	1	0	-425
2	Martynov ,A (Alexey)	4	1491.8	1066.8	1	1399.4	1066.8	2	1338.1	1066.8	1	1274.5	1066.8
3	Jolliffe ,SR (Shaun)	4	1	-212.5	0	0	0	2	0	-425	2	1	0
3	Jolliffe ,SR (Shaun)	4	1578.7	1366.2	0	0	0	2	1424.3	1153.7	2	1433.6	1578.7
4	Luchies ,M (Maria)	3	3	425	3	3	425	0	0	0	0	0	0
4	Luchies ,M (Maria)	3	1245.1	1670.1	3	1221.2	1670.1	0	0	0	0	0	0
5	Mungal ,Z (Zoey)	3	0	-425	2	0	-425	1	0	-425	0	0	0
5	Mungal ,Z (Zoey)	3	1524.9	1099.9	2	1554.9	1099.9	1	1343.8	1099.9	0	0	0
6	Sparks ,SJW (Stephen)	3	0	-425	1	0	-425	2	0	-425	0	0	0
6	Sparks ,SJW (Stephen)	3	1508.5	1083.5	1	1475.5	1083.5	2	1594.9	1083.5	0	0	0
7	Ngubeni ,JM (Jackie)	3	0	-425	1	0	-425	1	0	-425	1	0	-425
7	Ngubeni ,JM (Jackie)	3	1570.6	1145.6	1	1587	1145.6	1	1582.1	1145.6	1	1553.2	1145.6
8	Assabi ,O (Ofer)	3	1	-141.7	1	0	-425	1	0	-425	1	1	425
8	Assabi ,O (Ofer)	3	1574.3	1432.7	1	1532.1	1149.3	1	1703.6	1149.3	1	1653.3	1999.3
9	Loon ,M (Marc)	3	0	-425	1	0	-425	1	0	-425	1	0	-425
9	Loon ,M (Marc)	3	1455.9	1030.9	1	1476.1	1030.9	1	1330.7	1030.9	1	1320.5	1030.9
10	Hangelbroek ,P (Peter)	3	0	-425	0	0	0	1	0	-425	2	0	-425
10	Hangelbroek ,P (Peter)	3	1497.2	1072.2	0	0	0	1	1512	1072.2	2	1604.1	1072.2

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Harmse, J (Justin)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms