Chess South Africa Ratings Database

PLAYER PAGE

Personal

Harmse, J (Jacques)

Chess SA id

1060138412

FIDE id

Date of birth

2006-11-23 (U20)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

CPA

Chess SA registered

Last active game

2025-05-25

Personal details last changed

2025-05-06

Junior GPX Games

Junior GPX Points

1513.6

Item	Main	Standard	Rapid	Blitz
Rating	1529.2	1511.8	1424.5	1200.9
Raw rating	1527.7	1510.1	1424.5	1200.9
Weighted rating	1529.2	1511.8	1415.9	1200.3
Weighted performance	1370.7	1353.9	1164.3	0
Floor	1056.5	1043	924.5	713.2
K-factor	32	32	32	36
Min/Max rating change allowed	104	106.6	120.4	165.6
Highest rating	1563.8 2024-07-01	1547.6 2024-07-01	1439.6 2024-04-01	1293.2 2023-03-01
Highest raw rating	1556.5 2024-08-01	1543 2024-08-01	1424.5 2024-05-01	1213.2 2023-10-01
Highest weighted rating	1526.8 2025-08-01	1510.1 2025-08-01	1409.2 2025-08-01	1213.2 2023-12-01
Highest weighted performance	1563.8 2024-07-01	1547.6 2024-07-01	1439.6 2024-04-01	1293.2 2023-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.9	0.6	0	0
New rating	1530	1512.3	1424.5	1200.9
Analysis
Rating	1529.2	1511.8	1424.5	1200.9
Raw rating	1527.7	1510.1	1424.5	1200.9
Weighted rating	1529.2	1511.8	1415.9
Weighted performance	1370.7	1353.9	1164.3
K-factor	32	32	32	36
Floor	1056.5	1043	924.5	713.2
Max/Min rating change allowed	104	106.6	120.4	165.6
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	1527.7	1510.1	1424.5	1200.9
New weighted rating	1530	1512.3	1418.5	1200.5
New weighted performance	1370.2	1353.4	1163.8	0
Temp new rating	1530	1512.3	1424.5	1200.9
Temp new rating +/-	0.9	0.6	0	0
Final new rating +/-	0.9	0.6	0	0
New rating	1530	1512.3	1424.5	1200.9
New K-factor	32	32	32	36
New floor	1056.5	1043	924.5	713.2

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	13	13	0	0
	50	29	14	7
	68	34	22	12
	34	20	14	0
	0	0	0	0
History	165	96	50	19

Games since
	Main 79	Standard 51		Rapid 14		Blitz 14
Gender	Male
Age group	U20
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1045		310		14
Male	911		260		12
U20	99		34		2
U20 Male	86		30		2
Standard
	RSA		Province		Region
Overall	1088		295		12
Male	930		241		10
U20	101		35		2
U20 Male	81		30		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	451		167		8
Male	410		155		6
U20	39		16		3
U20 Male	36		15		3


	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	13	6	46.15	-32.7	1555.4	1522.7
Standard	13	6	46.15	-32.7	1555.4	1522.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	165	102.5	62.12	103	1377.1	1480.1
Standard	96	61.5	64.06	119.5	1385.7	1505.2
Rapid	50	31	62	102	1315.4	1417.4
Blitz	19	10	52.63	22.4	1496.4	1518.8

Date	Main	Standard	Rapid	Blitz
2025-09-30	1527.7	1510.1	1424.5	1200.9
2025-09-01	1527.7	1510.1	1424.5	1200.9
2025-08-01	1527.7	1510.1	1424.5	1200.9
2025-07-01	1527.7	1509.3	1424.5	1200.9
2025-06-01	1527.7	1508.5	1424.5	1200.9
2025-05-01	1536.3	1517.6	1424.5	1200.9
2025-04-01	1536.3	1517.6	1424.5	1200.9
2025-03-01	1536.3	1517.6	1424.5	1200.9
2025-02-01	1536.3	1517.6	1424.5	1200.9
2025-01-01	1531.3	1505.9	1424.5	1200.9
2024-12-01	1531.3	1505.9	1424.5	1200.9
2024-11-01	1531.3	1505.9	1424.5	1200.9
2024-10-01	1531.3	1505.9	1424.5	1200.9
2024-09-01	1556.5	1543	1424.5	1200.9
2024-08-01	1556.5	1543	1424.5	1200.9
2024-07-01	1537.9	1525.1	1424.5	1200.9
2024-06-01	1537.9	1525.1	1424.5	1200.9
2024-08-01	1537.9	1525.1	1424.5	1200.9
2024-04-01	1521.4	1525.1	1323.6	1200.9
2024-03-01	1451.7	1451.1	1323.6	1187.6
2024-02-01	1443.6	1451.1	1275.4	1187.6
2024-01-01	1453.8	1451.1	1279.4	1187.6
2023-12-01	1453.8	1451.1	1279.4	1187.6
2023-11-01	1448.2	1444.1	1279.4	1213.2

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	Hermanus Chess Club Invitational May 2025	2025-05-24	2025-05-25	Standard	Overberg (WOS)	7	7	3	Yes	Analysis
2	Hermanus Chess Club Invitational January 2025	2025-01-11	2025-01-12	Standard	Overberg (WOS)	7	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Hermanus Chess Club Invitational May 2025	2025-05-24	2025-05-25	Standard	Overberg (WOS)	7	7	3	Yes	Analysis
2	Hermanus Chess Club Invitational January 2025	2025-01-11	2025-01-12	Standard	Overberg (WOS)	7	6	3	Yes	Analysis
3	Paarl Boys' High Chess Festival 2024 (Elite)	2024-10-04	2024-10-05	Standard	Cape Winelands (WCW)	6	0	0	No	Analysis
4	Overberg GP Invitational Day 2 2024 (A)	2024-09-27	2024-09-27	Standard	Overberg (WOS)	5	4	2	Yes	Analysis
5	Overberg GP Invitational Day 1 2024 (A)	2024-09-26	2024-09-26	Standard	Overberg (WOS)	5	4	2	Yes	Analysis
6	Overberg Schools - Top Schools 2024 (U18 Mixed)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
7	Curro Hermanus Freedom Day Rapid 2024 (U19)	2024-04-27	2024-04-27	Rapid	Overberg (WOS)	5	4	4	Yes	Analysis
8	Western Cape Inter Region Cup 2024 (U20 Boys)	2024-03-23	2024-03-24	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
9	Western Cape Inter Region Cup 2024 (Blitz)	2024-03-22	2024-03-22	Blitz	Overberg (WOS)	7	7	4	Yes	Analysis
10	Western Cape HS Individuals Championship 2024 (U18 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	3.5	Yes	Analysis
11	Overberg High Schools Trails 2024 (U18 Boys)	2024-03-02	2024-03-02	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
12	Overberg High Schools Trails 2024 (U18)	2024-02-24	2024-02-24	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
13	Overberg Open Rapid 2024 (Open)	2024-01-27	2024-01-27	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
14	2023 Western Cape Rural Cup (U18)	2023-12-09	2023-12-10	Standard	Cape Winelands (WCW)	5	3	1.5	Yes	Analysis
15	2023 Western Cape Rural Cup (Blitz)	2023-12-08	2023-12-08	Blitz	Cape Winelands (WCW)	7	7	3	Yes	Analysis
16	Paarl Boys High Chess Festival 2023 (Elite Division)	2023-10-13	2023-10-14	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
17	Overberg Top Schools 2023 (U15+U18)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
18	CW Top Schools 2023 (Intermediate)	2023-08-12	2023-08-12	Standard	West Coast (WCU)	5	5	4	Yes	Analysis
19	Curro Durbanville Chess Open Rapid 2023 (Advanced)	2023-07-15	2023-07-15	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
20	Western Cape HS Individuals 2023 (U17 Boys)	2023-04-01	2023-04-02	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
21	Hermanus Rapid 2023 (B)	2023-04-22	2023-04-22	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis
22	Overberg High School Closed 2023 (U17 Boys)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
23	Western Cape Inter Regional 2023 (Junior Boys)	2023-03-18	2023-03-19	Standard	Eden (WEG)	5	4	2	Yes	Analysis
24	Western Cape Inter Regional 2023 (Blitz)	2023-03-17	2023-03-17	Blitz	Eden (WEG)	5	5	3	Yes	Analysis
25	Overberg High Schools Trails 2023 (U17)	2023-02-24	2023-02-24	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
26	Overberg Schools Open Tournament 2023 (U18)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
27	Western Cape Top Schools 2022 (U18 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	4.5	Yes	Analysis
28	Overberg Topskole 2022 (O18)	2022-08-30	2022-08-30	Standard	Overberg (WOS)	5	4	4	Yes	Analysis
29	OCF Youth Day Tournament 2022 (A)	2022-06-18	2022-06-18	Rapid	Overberg (WOS)	5	4	2	Yes	Analysis
30	The Hermanus Open 2022 (Open)	2022-05-14	2022-05-14	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis
31	Western Cape Schools Chess 2022 (U18 Boys)	2022-05-07	2022-05-08	Standard	Eden (WEG)	6	6	1.5	Yes	Analysis
32	OCF Open 2022 (U18)	2022-04-09	2022-04-09	Rapid	Overberg (WOS)	5	4	2	Yes	Analysis
33	Overberg 2022 (U18 Boys)	2022-03-05	2022-03-05	Standard	Overberg (WOS)	5	5	4.5	Yes	Analysis

#	Games	Start				End
1	12	Tournament Overberg Topskole 2022				Tournament Overberg Schools Open Tournament 2023
		date 2022-08-30	rnd 2	type Standard	result 1	date 2023-02-11	rnd 3	type Rapid	result 1
		Opponent Bester, E (Emma)				Opponent Van Der Walt, J (Jarno)
2	10	Tournament Curro Hermanus Freedom Day Rapid 2024				Tournament Overberg GP Invitational Day 1 2024
		date 2024-04-27	rnd 2	type Rapid	result 1	date 2024-09-26	rnd 1	type Standard	result 1
		Opponent Almano-Van Reenen, C (Cayden)				Opponent Laubscher, E (Erick)
3	7	Tournament Curro Durbanville Chess Open Rapid 2023				Tournament CW Top Schools 2023
		date 2023-07-15	rnd 6	type Rapid	result 1	date 2023-08-12	rnd 1	type Standard	result 1
		Opponent Priestley, L (Logan)				Opponent Janse Van Vuuren, A (Abri)

#	Games	Start				End
1	9	Tournament Overberg Topskole 2022				Tournament Western Cape Top Schools 2022
		date 2022-08-30	rnd 2	type Standard	result 1	date 2022-09-17	rnd 5	type Standard	result 0.5
		Opponent Bester, E (Emma)				Opponent Blomerus, K (Kian)
2	8	Tournament Western Cape HS Individuals 2023				Tournament CW Top Schools 2023
		date 2023-04-02	rnd 5	type Standard	result 0.5	date 2023-08-12	rnd 1	type Standard	result 1
		Opponent Meyer, P (Phillip)				Opponent Janse Van Vuuren, A (Abri)
3	6	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg GP Invitational Day 1 2024
		date 2024-07-27	rnd 1	type Standard	result 1	date 2024-09-26	rnd 1	type Standard	result 1
		Opponent Van Schoor, J (Jaandre)				Opponent Laubscher, E (Erick)

#	Games	Start				End
1	4	Tournament Curro Hermanus Freedom Day Rapid 2024				Tournament Curro Hermanus Freedom Day Rapid 2024
		date 2024-04-27	rnd 2	type Rapid	result 1	date 2024-04-27	rnd 5	type Rapid	result 1
		Opponent Almano-Van Reenen, C (Cayden)				Opponent Kalpens, B (Bonga)
2	4	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 1	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Slammat, B (Byron)				Opponent Wilds, E (Emile)
3	4	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-02-24	rnd 3	type Rapid	result 1
		Opponent Poni, L (Likho)				Opponent Fradie, F (Faith)

#	Games	Start				End
1	2	Tournament Western Cape Inter Region Cup 2024				Tournament Western Cape Inter Region Cup 2024
		date 2024-03-22	rnd 5	type Blitz	result 1	date 2024-03-22	rnd 6	type Blitz	result 1
		Opponent Greeff, R (Reginald)				Opponent Van Niekerk, L (Lizelle)
2	2	Tournament 2023 Western Cape Rural Cup				Tournament 2023 Western Cape Rural Cup
		date 2023-12-08	rnd 5	type Blitz	result 1	date 2023-12-08	rnd 6	type Blitz	result 1
		Opponent Meyer, J (Jared)				Opponent Johnson, L (Lakeisha)
3	2	Tournament Western Cape Inter Regional 2023				Tournament Western Cape Inter Regional 2023
		date 2023-03-17	rnd 2	type Blitz	result 1	date 2023-03-17	rnd 3	type Blitz	result 1
		Opponent Elias, C (Chardelia)				Opponent Cloete, R (Ralph)

#	Games	Start				End
1	10	Tournament Curro Hermanus Freedom Day Rapid 2024				Tournament Overberg GP Invitational Day 1 2024
		date 2024-04-27	rnd 2	type Rapid	result 1	date 2024-09-26	rnd 1	type Standard	result 1
		Opponent Almano-Van Reenen, C (Cayden)				Opponent Laubscher, E (Erick)
2	8	Tournament Overberg Topskole 2022				Tournament Western Cape Top Schools 2022
		date 2022-08-30	rnd 2	type Standard	result 1	date 2022-09-17	rnd 4	type Standard	result 1
		Opponent Bester, E (Emma)				Opponent Fortuin, J (Jemaine)
3	7	Tournament Curro Durbanville Chess Open Rapid 2023				Tournament CW Top Schools 2023
		date 2023-07-15	rnd 6	type Rapid	result 1	date 2023-08-12	rnd 1	type Standard	result 1
		Opponent Priestley, L (Logan)				Opponent Janse Van Vuuren, A (Abri)

#	Games	Start				End
1	8	Tournament Overberg Topskole 2022				Tournament Western Cape Top Schools 2022
		date 2022-08-30	rnd 2	type Standard	result 1	date 2022-09-17	rnd 4	type Standard	result 1
		Opponent Bester, E (Emma)				Opponent Fortuin, J (Jemaine)
2	7	Tournament Western Cape HS Individuals 2023				Tournament CW Top Schools 2023
		date 2023-04-02	rnd 6	type Standard	result 1	date 2023-08-12	rnd 1	type Standard	result 1
		Opponent Stander, D (Divan)				Opponent Janse Van Vuuren, A (Abri)
3	6	Tournament Overberg Schools - Top Schools 2024				Tournament Overberg GP Invitational Day 1 2024
		date 2024-07-27	rnd 1	type Standard	result 1	date 2024-09-26	rnd 1	type Standard	result 1
		Opponent Van Schoor, J (Jaandre)				Opponent Laubscher, E (Erick)

#	Games	Start				End
1	4	Tournament Curro Hermanus Freedom Day Rapid 2024				Tournament Curro Hermanus Freedom Day Rapid 2024
		date 2024-04-27	rnd 2	type Rapid	result 1	date 2024-04-27	rnd 5	type Rapid	result 1
		Opponent Almano-Van Reenen, C (Cayden)				Opponent Kalpens, B (Bonga)
2	4	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 1	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Slammat, B (Byron)				Opponent Wilds, E (Emile)
3	4	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-02-24	rnd 3	type Rapid	result 1
		Opponent Poni, L (Likho)				Opponent Fradie, F (Faith)

#	Games	Start				End
1	2	Tournament Western Cape Inter Region Cup 2024				Tournament Western Cape Inter Region Cup 2024
		date 2024-03-22	rnd 5	type Blitz	result 1	date 2024-03-22	rnd 6	type Blitz	result 1
		Opponent Greeff, R (Reginald)				Opponent Van Niekerk, L (Lizelle)
2	2	Tournament 2023 Western Cape Rural Cup				Tournament 2023 Western Cape Rural Cup
		date 2023-12-08	rnd 5	type Blitz	result 1	date 2023-12-08	rnd 6	type Blitz	result 1
		Opponent Meyer, J (Jared)				Opponent Johnson, L (Lakeisha)
3	2	Tournament Western Cape Inter Regional 2023				Tournament Western Cape Inter Regional 2023
		date 2023-03-17	rnd 2	type Blitz	result 1	date 2023-03-17	rnd 3	type Blitz	result 1
		Opponent Elias, C (Chardelia)				Opponent Cloete, R (Ralph)

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	Harmse ,D (Deon)	12	2.5	-247.9	6	2	-141.7	6	0.5	-354.2	0	0	0
1	Harmse ,D (Deon)	12	1508.8	1260.9	6	1611.3	1367.1	6	1314.6	1154.6	0	0	0
2	Opperman ,C (Connor)	4	0	-425	4	0	-425	0	0	0	0	0	0
2	Opperman ,C (Connor)	4	1654.6	1229.6	4	1640.8	1229.6	0	0	0	0	0	0
3	Blauw ,S (Siyamthanda)	4	1.5	-106.2	2	1.5	212.5	1	0	-425	1	0	-425
3	Blauw ,S (Siyamthanda)	4	1542.6	1436.4	2	1598.3	1755.1	1	1365	1117.6	1	1200	1117.6
4	Van Der Walt ,J (Jarno)	4	2	0	1	1	425	3	1	-141.7	0	0	0
4	Van Der Walt ,J (Jarno)	4	1222.7	1222.7	1	1250.6	1647.7	3	1177.6	1081.1	0	0	0
5	Laubscher ,E (Erick)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
5	Laubscher ,E (Erick)	3	1316.4	1458.1	3	1223.1	1458.1	0	0	0	0	0	0
6	Southey ,AM (Andrew Mcnab)	3	0	-425	2	0	-425	1	0	-425	0	0	0
6	Southey ,AM (Andrew Mcnab)	3	1686.6	1261.6	2	1728.9	1261.6	1	1710.7	1261.6	0	0	0
7	Bester ,E (Emma)	3	3	425	1	1	425	1	1	425	1	1	425
7	Bester ,E (Emma)	3	1098.7	1523.7	1	1070.7	1523.7	1	1128.8	1523.7	1	1109.6	1523.7
8	Meyer ,P (Phillip)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
8	Meyer ,P (Phillip)	2	1274.9	1062.4	2	1274.8	1062.4	0	0	0	0	0	0
9	Van Tonder ,W (Wium)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
9	Van Tonder ,W (Wium)	2	1550.2	1337.7	2	1541.7	1337.7	0	0	0	0	0	0
10	Pekeur ,W (Warren)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Pekeur ,W (Warren)	2	1202.8	1415.3	2	1155.9	1415.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Harmse, J (Jacques)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms