Chess South Africa Ratings Database

PLAYER PAGE

Personal

Donker, J (Jesse)

Chess SA id

1140134075

FIDE id

Date of birth

2014-03-02 (U12)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1337.6

Item	Main	Standard	Rapid	Blitz
Rating	1405.2	1413.6	1313.5	1200
Raw rating	1404.5	1413.5	1313.5	1200
Weighted rating	1405.2	1413.6	1312.8	1200
Weighted performance	1233	1222.7	913.1	0
Floor	935.7	929.5	860.8	700
K-factor	32	32	36	36
Min/Max rating change allowed	123.9	122.3	141.1	165.8
Highest rating	1458.8 2022-10-01	1429.5 2024-12-01	1551.1 2022-01-01	1200 2018-10-01
Highest raw rating	1435.7 2022-11-01	1429.5 2024-12-01	1360.8 2022-11-01	1200 2024-02-01
Highest weighted rating	1435.7 2025-03-01	1429.5 2025-03-01	1360.8 2023-11-01	1200 2018-10-01
Highest weighted performance	1458.8 2022-10-01	1418.7 2022-09-01	1551.1 2022-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.2	0	0	0
New rating	1405.4	1413.6	1313.5	1200
Analysis
Rating	1405.2	1413.6	1313.5	1200
Raw rating	1404.5	1413.5	1313.5	1200
Weighted rating	1405.2	1413.6	1312.8
Weighted performance	1233	1222.7	913.1
K-factor	32	32	36	36
Floor	935.7	929.5	860.8	700
Max/Min rating change allowed	123.9	122.3	141.1	165.8
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	1404.5	1413.5	1313.5	1200
New weighted rating	1405.4	1413.6	1312.9	1200
New weighted performance	1232.5	1222.2	912.7	0
Temp new rating	1405.4	1413.6	1313.5	1200
Temp new rating +/-	0.2	0	0	0
Final new rating +/-	0.2	0	0	0
New rating	1405.4	1413.6	1313.5	1200
New K-factor	32	32	36	36
New floor	935.7	929.5	860.8	700

Item	Main	Standard	Rapid
	0	0	0
	10	10	0
	16	16	0
	34	12	22
	69	44	25
	0	0	0
History	129	82	47

Games since
	Main 26	Standard 26		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
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	10	5.5	55	42.5	1295.4	1337.9
Standard	10	5.5	55	42.5	1295.4	1337.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	129	82.5	63.95	118.6	1264.7	1383.3
Standard	82	53.5	65.24	129.6	1266.2	1395.7
Rapid	47	29	61.7	99.5	1262.2	1361.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1404.5	1413.5	1313.5	1200
2025-09-01	1404.5	1413.5	1313.5	1200
2025-08-01	1404.5	1413.5	1313.5	1200
2025-07-01	1404.1	1413.4	1313.5	1200
2025-06-01	1403.7	1413.2	1313.5	1200
2025-05-01	1403.2	1412.9	1313.5	1200
2025-04-01	1402.2	1410.9	1313.5	1200
2025-03-01	1420.9	1417.1	1313.5	1200
2025-02-01	1420.4	1429.5	1313.5	1200
2025-01-01	1420.4	1429.5	1311.9	1200
2024-12-01	1420.4	1429.5	1311.9	1200
2024-11-01	1397.8	1403.6	1311.9	1200
2024-10-01	1397.8	1403.6	1311.9	1200
2024-09-01	1397.8	1403.6	1311.9	1200
2024-08-01	1397.8	1403.6	1311.9	1200
2024-07-01	1397.8	1403.6	1311.9	1200
2024-06-01	1397.8	1403.6	1311.9	1200
2024-08-01	1397.8	1403.6	1311.9	1200
2024-04-01	1397.8	1403.6	1311.9	1200
2024-03-01	1398.9	1420.2	1311.9	1200
2024-02-01	1388	1416	1311.9	1200
2024-01-01	1388	1416	1311.9	1200
2023-12-01	1388	1416	1311.9	1200
2023-11-01	1388	1416	1311.9	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	CT Metro Schools Individual Closed 2025 (U11 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	4	1.5	Yes	Analysis
2	CT Metro North Schools Chess Individual Trials 2025 (U11 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	CT Metro Schools Individual Closed 2025 (U11 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	4	1.5	Yes	Analysis
2	CT Metro North Schools Chess Individual Trials 2025 (U11 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
3	Paarl Boys' High Chess Festival 2024	2024-10-04	2024-10-05	Standard	Cape Winelands (WCW)	6	5	4.5	Yes	Analysis
4	Cape Town Metro Schools Chess Closed Individuals 2024 (U11 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
5	North District School Trials 2024 (U11 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis
6	Western Cape Closed Championship 2023 (U10)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
7	Western Cape Top Schools 2023 (U9 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
8	CT Metro District North Top Schools Chess 2023 (U9 Mixed)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	3	2	1	Yes	Analysis
9	Western Cape PS Individuals 2023 (U9 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
10	Cape Town Metro Schools Chess Closed Individuals 2023 (U9 Boys)	2023-03-04	2023-03-04	Rapid	Cape Town (WCT)	5	4	2	Yes	Analysis
11	North District School Trials 2023 (U9 Boys+Girls)	2023-02-04	2023-02-04	Rapid	Cape Town (WCT)	5	4	2	Yes	Analysis
12	Laerskool Welgemoed Rapid 2023 (U10)	2023-02-11	2023-02-11	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
13	Kenridge Rapid 2022 (U10)	2022-11-05	2022-11-05	Rapid	Cape Town (WCT)	6	4	2	Yes	Analysis
14	Metro Rapid 2022 (U9 Boys)	2022-10-22	2022-10-22	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
15	Western Cape Top Schools 2022 (U9 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
16	WP Closed 2022 (U8+U10)	2022-06-16	2022-06-16	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
17	ACL Matrix FM Invitational 2022 (Junior)	2022-06-11	2022-06-11	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis
18	Western Cape Schools 2022 (U9 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	5	Yes	Analysis
19	Metro WP Schools Chess Trials 2022 (U7+U9 Boys)	2022-04-22	2022-04-23	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
20	District North 2022 (U9)	2022-03-05	2022-03-05	Rapid	Cape Town (WCT)	6	5	3	Yes	Analysis
21	CTCA Rapid Masters @ Claremont Chess Club 2022 (Juniors)	2022-03-19	2022-03-19	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
22	Western Province Open 2022 (U10)	2022-02-26	2022-02-27	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
23	Kraaifontein Open 2022 (U10)	2022-01-08	2022-01-09	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
24	Curro Durbanville Chess Trials 2022 (U9)	2022-01-21	2022-01-22	Rapid	Cape Town (WCT)	5	5	4.5	Yes	Analysis
25	2022 Cape Of Good Hope Open (U10)	2022-01-29	2022-01-30	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis

#	Games	Start				End
1	13	Tournament WP Closed 2022				Tournament Kenridge Rapid 2022
		date 2022-06-16	rnd 6	type Standard	result 0.5	date 2022-11-05	rnd 2	type Rapid	result 1
		Opponent Grove, T (Tyler)				Opponent Abarder, H (Hanaah)
2	8	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2024-03-03	rnd 6	type Standard	result 0.5	date 2025-02-08	rnd 2	type Standard	result 1
		Opponent Faure, B (Brodie)				Opponent Kelbore, G (Grum)
3	7	Tournament Kraaifontein Open 2022				Tournament 2022 Cape Of Good Hope Open
		date 2022-01-09	rnd 6	type Standard	result 1	date 2022-01-29	rnd 1	type Standard	result 1
		Opponent Mabaya, O (Oscar)				Opponent Noble, A (Andrew)

#	Games	Start				End
1	8	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2024-03-03	rnd 6	type Standard	result 0.5	date 2025-02-08	rnd 2	type Standard	result 1
		Opponent Faure, B (Brodie)				Opponent Kelbore, G (Grum)
2	8	Tournament WP Closed 2022				Tournament Western Cape PS Individuals 2023
		date 2022-06-16	rnd 6	type Standard	result 0.5	date 2023-05-05	rnd 2	type Standard	result 1
		Opponent Grove, T (Tyler)				Opponent Reinecke, O (Otto)
3	6	Tournament Metro WP Schools Chess Trials 2022				Tournament Western Cape Schools 2022
		date 2022-04-23	rnd 3	type Standard	result 1	date 2022-05-28	rnd 3	type Standard	result 1
		Opponent Levin, J (Jamie)				Opponent Anderson, J (Jean)

#	Games	Start				End
1	10	Tournament CTCA Rapid Masters @ Claremont Chess Club 2022				Tournament Kenridge Rapid 2022
		date 2022-03-19	rnd 4	type Rapid	result 1	date 2022-11-05	rnd 2	type Rapid	result 1
		Opponent Mtyobile, I (Iviwe)				Opponent Abarder, H (Hanaah)
2	6	Tournament Curro Durbanville Chess Trials 2022				Tournament District North 2022
		date 2022-01-21	rnd 1	type Rapid	result 1	date 2022-03-05	rnd 1	type Rapid	result 1
		Opponent Steyn, B (Bismarck)				Opponent Neveling, N (Nolan)
3	4	Tournament CT Metro District North Top Schools Chess 2023				Tournament Western Cape Closed Championship 2023
		date 2023-07-29	rnd 3	type Rapid	result 1	date 2023-09-23	rnd 3	type Rapid	result 0.5
		Opponent Zwartz, Z (Zeke)				Opponent Manning, C (Callan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Western Cape Top Schools 2022				Tournament Metro Rapid 2022
		date 2022-09-16	rnd 1	type Standard	result 1	date 2022-10-22	rnd 2	type Rapid	result 1
		Opponent Blom, L (Luca)				Opponent Klopper, B (Ben)
2	6	Tournament Metro WP Schools Chess Trials 2022				Tournament Western Cape Schools 2022
		date 2022-04-23	rnd 3	type Standard	result 1	date 2022-05-28	rnd 3	type Standard	result 1
		Opponent Levin, J (Jamie)				Opponent Anderson, J (Jean)
3	4	Tournament Paarl Boys' High Chess Festival 2024				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2024-10-05	rnd 5	type Standard	result 1	date 2025-02-08	rnd 2	type Standard	result 1
		Opponent Hollenbach, W (Wian)				Opponent Kelbore, G (Grum)

#	Games	Start				End
1	7	Tournament Western Cape Top Schools 2022				Tournament Western Cape PS Individuals 2023
		date 2022-09-16	rnd 1	type Standard	result 1	date 2023-05-05	rnd 2	type Standard	result 1
		Opponent Blom, L (Luca)				Opponent Reinecke, O (Otto)
2	6	Tournament Metro WP Schools Chess Trials 2022				Tournament Western Cape Schools 2022
		date 2022-04-23	rnd 3	type Standard	result 1	date 2022-05-28	rnd 3	type Standard	result 1
		Opponent Levin, J (Jamie)				Opponent Anderson, J (Jean)
3	5	Tournament Western Cape PS Individuals 2023				Tournament Western Cape Top Schools 2023
		date 2023-05-06	rnd 5	type Standard	result 1	date 2023-09-02	rnd 3	type Standard	result 1
		Opponent Roets, JAW (Johannes Andreas W)				Opponent Swartz, R (Rowan)

#	Games	Start				End
1	5	Tournament CTCA Rapid Masters @ Claremont Chess Club 2022				Tournament Metro Rapid 2022
		date 2022-03-19	rnd 4	type Rapid	result 1	date 2022-10-22	rnd 2	type Rapid	result 1
		Opponent Mtyobile, I (Iviwe)				Opponent Klopper, B (Ben)
2	4	Tournament North District School Trials 2023				Tournament Laerskool Welgemoed Rapid 2023
		date 2023-02-04	rnd 5	type Rapid	result 1	date 2023-02-11	rnd 3	type Rapid	result 1
		Opponent Somai, J (Jhash)				Opponent Armay, K (Kayra)
3	3	Tournament CT Metro District North Top Schools Chess 2023				Tournament Western Cape Closed Championship 2023
		date 2023-07-29	rnd 3	type Rapid	result 1	date 2023-09-23	rnd 2	type Rapid	result 1
		Opponent Zwartz, Z (Zeke)				Opponent Nogaga, O (Owethu)

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	Manning ,C (Callan)	6	2	-141.7	1	0	-425	5	2	-85	0	0	0
1	Manning ,C (Callan)	6	1427.6	1285.9	1	1304.8	1002.6	5	1416.4	1342.6	0	0	0
2	Grove ,T (Tyler)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
2	Grove ,T (Tyler)	3	1177	1177	3	1134.8	1177	0	0	0	0	0	0
3	Resnekov ,O (Oliver)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	Resnekov ,O (Oliver)	3	1391.1	966.1	3	1337.3	966.1	0	0	0	0	0	0
4	Zenda ,K (Khumo)	3	2	141.7	2	2	425	1	0	-425	0	0	0
4	Zenda ,K (Khumo)	3	1272.2	1413.9	2	1238.4	1697.2	1	1370.2	847.2	0	0	0
5	Noble ,A (Andrew)	2	2	425	2	2	425	0	0	0	0	0	0
5	Noble ,A (Andrew)	2	1200	1625	2	1200	1625	0	0	0	0	0	0
6	Weideman ,J (Janko)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Weideman ,J (Janko)	2	1326.2	901.2	2	1307.1	901.2	0	0	0	0	0	0
7	Anderson ,J (Jean)	2	2	425	2	2	425	0	0	0	0	0	0
7	Anderson ,J (Jean)	2	1198.2	1623.2	2	1194.4	1623.2	0	0	0	0	0	0
8	Coleman ,F (Ferdinand)	2	2	425	2	2	425	0	0	0	0	0	0
8	Coleman ,F (Ferdinand)	2	1292.9	1717.9	2	1304.4	1717.9	0	0	0	0	0	0
9	Levin ,J (Jamie)	2	2	425	2	2	425	0	0	0	0	0	0
9	Levin ,J (Jamie)	2	1209.8	1634.8	2	1207.4	1634.8	0	0	0	0	0	0
10	Vlok ,A (Adiaan)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Vlok ,A (Adiaan)	2	1342.8	1555.2	2	1283.9	1555.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Donker, J (Jesse)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms