Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coetzee, JS (Jurgen Shaun)

Chess SA id

186005213

FIDE id

Date of birth

1986-10-14 (Adult)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-12-05

Personal details last changed

2025-05-10

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1498.7	1421.5	1424.8	1385.6
Raw rating	1498.7	1421.5	1424.8	1385.6
Weighted rating	1476.8	1414.5	1405.2	1347.1
Weighted performance	1445.7	1279.3	0	0
Floor	998.7	993.2	924.8	887
K-factor	32	32	32	36
Min/Max rating change allowed	108.3	120.9	120.4	127.3
Highest rating	1549.7 2018-06-01	1556.8 2018-06-01	1424.8 2025-04-01	1387 2018-07-01
Highest raw rating	1498.7 2026-01-01	1493.2 2020-01-01	1424.8 2025-04-01	1387 2020-01-01
Highest weighted rating	1495.1 2022-04-01	1493.2 2020-06-01	1424.8 2018-07-01	1387 2018-07-01
Highest weighted performance	1549.7 2018-06-01	1556.8 2018-06-01	1343.3 2024-08-01	1334.3 2022-07-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1498.7	1421.5	1424.8	1385.6
Analysis
Rating	1498.7	1421.5	1424.8	1385.6
Raw rating	1498.7	1421.5	1424.8	1385.6
Weighted rating	1476.8	1414.5	1405.2
Weighted performance	1445.7	1279.3	0
K-factor	32	32	32	36
Floor	998.7	993.2	924.8	887
Max/Min rating change allowed	108.3	120.9	120.4	127.3
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	1498.7	1421.5	1424.8	1385.6
New weighted rating	1480.1	1415.8	1407.8	1350.3
New weighted performance	1435.7	1269.8	0	0
Temp new rating	1498.7	1421.5	1424.8	1385.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1498.7	1421.5	1424.8	1385.6
New K-factor	32	32	32	36
New floor	998.7	993.2	924.8	887

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	17	5	12	0
	26	13	13	0
	5	5	0	0
	50	36	0	14
	6	6	0	0
History	263	224	25	14

Games since
	Main 43	Standard 18		Rapid 25		Blitz 0
Gender	Male
Age group	Adult
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1346		416		104
Male	1139		347		86
Adult	435		136		27
Adult Male	402		121		24
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	428		209		18
Male	372		181		17
Adult	138		49		9
Adult Male	129		48		9
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	17	11.5	67.65	150	1408.1	1558.1
Standard	5	3	60	85	1379.7	1464.7
Rapid	12	8.5	70.83	177.1	1420	1597.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	124	64	51.61	13.7	1474.4	1488.1
Standard	85	41.5	48.82	-10	1465.8	1455.8
Rapid	25	15.5	62	102	1490.8	1592.8
Blitz	14	7	50	0	1497.2	1497.2

Date	Main	Standard	Rapid	Blitz
2026-01-01	1498.7	1421.5	1424.8	1385.6
2025-11-30	1489.4	1421.5	1424.8	1343.8
2025-11-01	1489.4	1421.5	1424.8	1343.8
2025-09-30	1489.4	1421.5	1424.8	1343.8
2025-09-01	1489.4	1421.5	1424.8	1343.8
2025-08-01	1495.1	1422.1	1424.8	1343.8
2025-07-01	1495.1	1422.1	1424.8	1343.8
2025-06-01	1495.1	1422.1	1424.8	1343.8
2025-05-01	1495.1	1422.1	1424.8	1343.8
2025-04-01	1495.1	1422.1	1424.8	1343.8
2025-03-01	1474.8	1422.1	1371.4	1343.8
2025-02-01	1462.1	1422.1	1373	1343.8
2025-01-01	1462.1	1422.1	1370.4	1343.8
2024-12-01	1462.1	1422.1	1370.4	1343.8
2024-11-01	1445.4	1389.8	1370.4	1343.8
2024-10-01	1443.8	1380.2	1370.4	1343.8
2024-09-01	1443.8	1380.2	1370.4	1343.8
2024-11-01	1420	1380.2	1356	1343.8
2024-07-01	1420	1380.2	1356	1343.8
2024-06-01	1420	1380.2	1356	1343.8
2024-05-01	1420	1380.2	1356	1343.8
2024-04-01	1398	1380.2	1387	1343.8
2024-03-01	1398	1380.2	1387	1343.8
2024-02-01	1398	1380.2	1387	1343.8

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Sarah Jacobs Blitz 2025	2025-12-05	2025-12-05	Blitz	Eden (WEG)	5	5	4	Yes	Analysis
2	2025 Eden Open & Women's Tournament (Championship)	2025-08-23	2025-08-23	Standard	Eden (WEG)	5	5	3	Yes	Analysis
3	Oudtshoorn Rapid 2025 (Open)	2025-03-28	2025-03-28	Rapid	Eden (WEG)	6	6	4.5	Yes	Analysis
4	Eden Rapid 2025 (A)	2025-02-23	2025-02-23	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
5	Eden Closed 2024 (Men)	2024-11-23	2024-11-24	Standard	Eden (WEG)	5	4	1.5	Yes	Analysis
6	Eden Gambit Chess Tournament 2024 (A)	2024-11-02	2024-11-02	Standard	Eden (WEG)	5	4	1.5	Yes	Analysis
7	Eden Chess Union League 2024 (Premier)	2024-10-12	2024-10-12	Standard	Eden (WEG)	5	5	2	Yes	Analysis
8	Eden Blitz 2024	2024-08-30	2024-08-30	Blitz	Eden (WEG)	9	0	0	No	Analysis
9	Eden Rapid 2024 (A)	2024-08-03	2024-08-03	Rapid	Eden (WEG)	6	6	3	Yes	Analysis
10	Steinitz Chess Festival 2024 (Open)	2024-05-10	2024-05-12	Standard	Cape Town (WCT)	6	0	0	No	Analysis
11	Waboomskraal Chess Club Open 2024	2024-04-06	2024-04-06	Rapid	Eden (WEG)	7	7	4	Yes	Analysis
12	Eden Chess Union League 2023 (Premier Division)	2023-11-11	2023-11-11	Standard	Eden (WEG)	5	5	2	Yes	Analysis
13	George Open 2022 (A)	2022-12-03	2022-12-03	Standard	Eden (WEG)	5	5	1.5	Yes	Analysis
14	WCCA Rural Cup 2022 (Open)	2022-08-13	2022-08-14	Standard	Overberg (WOS)	5	4	0.5	Yes	Analysis
15	South African Open 2022 (B)	2022-07-09	2022-07-17	Standard	Cape Town (WCT)	11	11	6	Yes	Analysis
16	South African Open 2022 (Blitz)	2022-07-14	2022-07-14	Blitz	Cape Town (WCT)	10	10	4	Yes	Analysis
17	WCCA Rural Cup Blitz 2022	2022-07-12	2022-07-12	Blitz	Overberg (WOS)	5	4	3	Yes	Analysis
18	George Open 2022 (A)	2022-06-11	2022-06-11	Standard	Eden (WEG)	5	5	3	Yes	Analysis
19	Steinitz Open 2022 (B)	2022-05-20	2022-05-22	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
20	Eden Open 2022 (A)	2022-04-22	2022-04-24	Standard	Eden (WEG)	6	5	1.5	Yes	Analysis
21	Western Cape Club Championships 2021 (B)	2021-10-15	2021-10-17	Standard	Eden (WEG)	6	6	3	Yes	Analysis
22	Oudtshoorn Open 2018	2018-06-29	2018-06-30	Standard	Eden (WEG)	6	6	3	Yes	Analysis
23	King Cars PECC Grand Prix Third Leg 2018	2018-06-22	2018-06-24	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
24	Pacaltsdorp Chess Club Open 2018 (A)	2018-05-25	2018-05-26	Standard	Eden (WEG)	6	6	4.5	Yes	Analysis
25	Calitzdorp Ope 2018	2018-05-05	2018-05-05	Standard	Eden (WEG)	5	2	1	Yes	Analysis

#	Games	Start				End
1	6	Tournament Eden Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-02-23	rnd 6	type Rapid	result 1	date 2025-03-28	rnd 5	type Rapid	result 0.5
		Opponent Kammies, E (Elmo)				Opponent Campher, K (Keegan)
2	5	Tournament George Open 2022				Tournament South African Open 2022
		date 2022-06-11	rnd 2	type Standard	result 1	date 2022-07-09	rnd 1	type Standard	result 1
		Opponent Samson, H (Henry)				Opponent Sithole, N (Nontobeko)
3	5	Tournament Pacaltsdorp Chess Club Open 2018				Tournament Pacaltsdorp Chess Club Open 2018
		date 2018-05-25	rnd 1	type Standard	result 1	date 2018-05-26	rnd 5	type Standard	result 0.5
		Opponent Putter, R (Riaan)				Opponent Davids, W (Welesley)

#	Games	Start				End
1	5	Tournament George Open 2022				Tournament South African Open 2022
		date 2022-06-11	rnd 2	type Standard	result 1	date 2022-07-09	rnd 1	type Standard	result 1
		Opponent Samson, H (Henry)				Opponent Sithole, N (Nontobeko)
2	5	Tournament Pacaltsdorp Chess Club Open 2018				Tournament Pacaltsdorp Chess Club Open 2018
		date 2018-05-25	rnd 1	type Standard	result 1	date 2018-05-26	rnd 5	type Standard	result 0.5
		Opponent Putter, R (Riaan)				Opponent Davids, W (Welesley)
3	4	Tournament King Cars PECC Grand Prix Third Leg 2018				Tournament Oudtshoorn Open 2018
		date 2018-06-24	rnd 5	type Standard	result 1	date 2018-06-30	rnd 2	type Standard	result 1
		Opponent Ramaele, TD (Thapelo)				Opponent Davids, W (Welesley)

#	Games	Start				End
1	6	Tournament Eden Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-02-23	rnd 6	type Rapid	result 1	date 2025-03-28	rnd 5	type Rapid	result 0.5
		Opponent Kammies, E (Elmo)				Opponent Campher, K (Keegan)
2	3	Tournament Eden Rapid 2024				Tournament Eden Rapid 2024
		date 2024-08-03	rnd 3	type Rapid	result 0.5	date 2024-08-03	rnd 5	type Rapid	result 0.5
		Opponent Oliphant, H (Heinrich)				Opponent Swart, G (George)
3	2	Tournament Eden Rapid 2025				Tournament Eden Rapid 2025
		date 2025-02-23	rnd 1	type Rapid	result 1	date 2025-02-23	rnd 2	type Rapid	result 1
		Opponent Harris, E (Emerique)				Opponent Golding, E (Elnichia)

#	Games	Start				End
1	2	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 6	type Blitz	result 1	date 2022-07-14	rnd 7	type Blitz	result 1
		Opponent Severin, M (Martin)				Opponent Southey, AM (Andrew)
2	2	Tournament WCCA Rural Cup Blitz 2022				Tournament WCCA Rural Cup Blitz 2022
		date 2022-07-12	rnd 4	type Blitz	result 1	date 2022-07-12	rnd 5	type Blitz	result 1
		Opponent Davids, R (Rafael)				Opponent Harmse, D (Deon)
3	1	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 4	type Blitz	result 1	date 2022-07-14	rnd 4	type Blitz	result 1
		Opponent Makaula, V (Vumankosi)				Opponent Makaula, V (Vumankosi)

#	Games	Start				End
1	5	Tournament Eden Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-02-23	rnd 6	type Rapid	result 1	date 2025-03-28	rnd 4	type Rapid	result 1
		Opponent Kammies, E (Elmo)				Opponent Oliphant, H (Heinrich)
2	4	Tournament King Cars PECC Grand Prix Third Leg 2018				Tournament Oudtshoorn Open 2018
		date 2018-06-24	rnd 5	type Standard	result 1	date 2018-06-30	rnd 2	type Standard	result 1
		Opponent Ramaele, TD (Thapelo)				Opponent Davids, W (Welesley)
3	4	Tournament Pacaltsdorp Chess Club Open 2018				Tournament Pacaltsdorp Chess Club Open 2018
		date 2018-05-25	rnd 1	type Standard	result 1	date 2018-05-26	rnd 4	type Standard	result 1
		Opponent Putter, R (Riaan)				Opponent Hattingh, K (Krishna)

#	Games	Start				End
1	4	Tournament King Cars PECC Grand Prix Third Leg 2018				Tournament Oudtshoorn Open 2018
		date 2018-06-24	rnd 5	type Standard	result 1	date 2018-06-30	rnd 2	type Standard	result 1
		Opponent Ramaele, TD (Thapelo)				Opponent Davids, W (Welesley)
2	4	Tournament Pacaltsdorp Chess Club Open 2018				Tournament Pacaltsdorp Chess Club Open 2018
		date 2018-05-25	rnd 1	type Standard	result 1	date 2018-05-26	rnd 4	type Standard	result 1
		Opponent Putter, R (Riaan)				Opponent Hattingh, K (Krishna)
3	3	Tournament 2025 Eden Open & Women's Tournament				Tournament 2025 Eden Open & Women's Tournament
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 5	type Standard	result 1
		Opponent Cornforth, RM (Rodney)				Opponent Hanabe, V (Victory)

#	Games	Start				End
1	5	Tournament Eden Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-02-23	rnd 6	type Rapid	result 1	date 2025-03-28	rnd 4	type Rapid	result 1
		Opponent Kammies, E (Elmo)				Opponent Oliphant, H (Heinrich)
2	2	Tournament Eden Rapid 2025				Tournament Eden Rapid 2025
		date 2025-02-23	rnd 1	type Rapid	result 1	date 2025-02-23	rnd 2	type Rapid	result 1
		Opponent Harris, E (Emerique)				Opponent Golding, E (Elnichia)
3	2	Tournament Waboomskraal Chess Club Open 2024				Tournament Waboomskraal Chess Club Open 2024
		date 2024-04-06	rnd 5	type Rapid	result 1	date 2024-04-06	rnd 6	type Rapid	result 1
		Opponent Punt, H (Heinrich)				Opponent Hone, R (Ryan)

#	Games	Start				End
1	2	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 6	type Blitz	result 1	date 2022-07-14	rnd 7	type Blitz	result 1
		Opponent Severin, M (Martin)				Opponent Southey, AM (Andrew)
2	2	Tournament WCCA Rural Cup Blitz 2022				Tournament WCCA Rural Cup Blitz 2022
		date 2022-07-12	rnd 4	type Blitz	result 1	date 2022-07-12	rnd 5	type Blitz	result 1
		Opponent Davids, R (Rafael)				Opponent Harmse, D (Deon)
3	1	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 4	type Blitz	result 1	date 2022-07-14	rnd 4	type Blitz	result 1
		Opponent Makaula, V (Vumankosi)				Opponent Makaula, V (Vumankosi)

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	Campher ,K (Keegan)	5	1	-255	2	0.5	-212.5	2	0.5	-212.5	1	0	-425
1	Campher ,K (Keegan)	5	1681.7	1426.7	2	1666.7	1469.2	2	1321.2	1469.2	1	1207.7	1256.7
2	Mafanya ,K (Kulasande)	3	0	-425	3	0	-425	0	0	0	0	0	0
2	Mafanya ,K (Kulasande)	3	1937.3	1512.3	3	1932.6	1512.3	0	0	0	0	0	0
3	Swart ,G (George)	3	0.5	-283.3	2	0	-425	1	0.5	0	0	0	0
3	Swart ,G (George)	3	1730.3	1447	2	1706.8	1305.3	1	1606.1	1730.3	0	0	0
4	Wilson ,RP (Reginald Peter)	3	0	-425	2	0	-425	1	0	-425	0	0	0
4	Wilson ,RP (Reginald Peter)	3	1778.9	1353.9	2	1809.7	1353.9	1	1701	1353.9	0	0	0
5	Botes ,R (Renier)	3	0	-425	2	0	-425	1	0	-425	0	0	0
5	Botes ,R (Renier)	3	1382.4	957.4	2	1381.2	957.4	1	1255.7	957.4	0	0	0
6	Oliphant ,H (Heinrich)	3	2	141.7	1	0.5	0	2	1.5	212.5	0	0	0
6	Oliphant ,H (Heinrich)	3	1470.2	1611.9	1	1440.8	1470.2	2	1433.4	1682.7	0	0	0
7	Davids ,W (Welesley)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
7	Davids ,W (Welesley)	2	1349.3	1561.8	2	1375.8	1561.8	0	0	0	0	0	0
8	Meyer ,J (Jared)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Meyer ,J (Jared)	2	1531.3	1106.3	2	1524.9	1106.3	0	0	0	0	0	0
9	Cornforth ,RM (Rodney)	2	1	0	2	1	0	0	0	0	0	0	0
9	Cornforth ,RM (Rodney)	2	1387.7	1387.7	2	1351.4	1387.7	0	0	0	0	0	0
10	Blauw ,S (Siyamthanda)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Blauw ,S (Siyamthanda)	2	1472.9	1047.9	2	1458.8	1047.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Coetzee, JS (Jurgen Shaun)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms