Chess South Africa Ratings Database

PLAYER PAGE

Personal

Heasman, J (JD)

Chess SA id

1160161827

FIDE id

Date of birth

2016-08-12 (U10)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

47.1

Junior GPX Points

1177.4

Item	Main	Standard	Rapid	Blitz
Rating	1223.6	1233.9	1195.2	1200
Raw rating	1211.1	1231.6	1143.2	1200
Weighted rating	1223.6	1233.9	1195.2	1200
Weighted performance	1084.8	1134.9	0	0
Floor	814.8	822.4	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	163.2	158.5	179.8	165.8
Highest rating	1314.8 2025-05-05	1322.4 2025-05-05	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1314.8 2025-05-05	1322.4 2025-05-05	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1314.8 2018-10-01	1322.4 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1297.4 2025-04-01	1301.8 2024-07-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.8	1.9	-4.3	0
New rating	1224.4	1235.8	1190.8	1200
Analysis
Rating	1223.6	1233.9	1195.2	1200
Raw rating	1211.1	1231.6	1143.2	1200
Weighted rating	1223.6	1233.9	1195.2
Weighted performance	1084.8	1134.9	0
K-factor	36	36	36	36
Floor	814.8	822.4	700	700
Max/Min rating change allowed	163.2	158.5	179.8	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	1211.1	1231.6	1143.2	1200
New weighted rating	1224.4	1235.8	1190.8	1200
New weighted performance	1078.3	1128	0	0
Temp new rating	1224.4	1235.8	1190.8	1200
Temp new rating +/-	0.8	1.9	-4.3	0
Final new rating +/-	0.8	1.9	-4.3	0
New rating	1224.4	1235.8	1190.8	1200
New K-factor	36	36	36	36
New floor	814.8	822.4	700	700

Item	Main	Standard	Rapid
	0	0	0
	58	41	17
	20	20	0
	5	5	0
	0	0	0
	0	0	0
History	83	66	17

Games since
	Main 78	Standard 61		Rapid 17		Blitz 0
Gender	Male
Age group	U10
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3947		1319		361
Male	2975		941		246
U10	363		120		44
U10 Male	275		86		30
Standard
	RSA		Province		Region
Overall	3792		1079		369
Male	2886		758		251
U10	338		98		48
U10 Male	265		71		32
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	58	26	44.83	-44	1287.4	1243.4
Standard	41	20.5	50	0	1260.3	1260.3
Rapid	17	5.5	32.35	-150	1352.6	1202.6
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	83	37	44.58	-46.1	1262	1215.9
Standard	66	31.5	47.73	-19.3	1238.6	1219.3
Rapid	17	5.5	32.35	-150	1352.6	1202.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1211.1	1231.6	1143.2	1200
2025-09-30	1225.3	1231.6	1199.7	1200
2025-09-01	1225.3	1231.6	1199.7	1200
2025-08-01	1225.3	1231.6	1199.7	1200
2025-07-01	1218.2	1223	1199.5	1200
2025-06-01	1295.7	1322.4	1197	1200
2025-05-01	1314.8	1322.4	1200	1200
2025-04-01	1297.4	1301.8	1200	1200
2025-03-01	1259.7	1264	1200	1200
2025-02-01	1205.4	1220.6	1200	1200
2025-01-01	1205.4	1220.6	1200	1200
2024-12-01	1205.4	1220.6	1200	1200
2024-11-01	1205.4	1220.6	1200	1200
2024-10-01	1205.4	1220.6	1200	1200
2024-09-01	1205.4	1220.6	1200	1200
2024-08-01	1205.4	1220.6	1200	1200
2024-07-01	1140.6	1142.8	1200	1200
2024-09-01	1140.6	1142.8	1200	1200
2024-05-01	1140.6	1142.8	1200	1200
2024-04-01	1140.6	1142.8	1200	1200
2024-03-01	1142.1	1141	1200	1200
2024-02-01	1133.1	1128	1200	1200
2024-01-01	1133.1	1128	1200	1200
2023-12-01	1133.1	1128	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	HCPS Invitational Rapid Tournament 2025 (U9)	2025-10-18	2025-10-18	Rapid	Eden (WEG)	6	5	0.5	Yes	Analysis
2	George Top Schools 2025 (U9)	2025-07-26	2025-07-26	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
3	2025 WC Rural Cup (U10)	2025-06-14	2025-06-15	Standard	Eden (WEG)	6	6	0	Yes	Analysis
4	Dennie Chess Rapid Tournament Open 2025 (U9)	2025-05-24	2025-05-24	Rapid	Eden (WEG)	5	5	3	Yes	Analysis
5	Southern Knights Rapid 2025 (C)	2025-05-03	2025-05-03	Rapid	Eden (WEG)	7	7	2	Yes	Analysis
6	Eden Chess Trials 2 2025 (U10)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	6	Yes	Analysis
7	Eden Schools Chess Trials 1 2025 (U9 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	3	Yes	Analysis
8	George Schools Chess Trials 3 2025 (U9 Boys)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
9	George Schools Chess Trials 2 2025 (U9 Boys)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	3	Yes	Analysis
10	George Schools Chess Trials 1 2025 (U9 Boys)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	HCPS Invitational Rapid Tournament 2025 (U9)	2025-10-18	2025-10-18	Rapid	Eden (WEG)	6	5	0.5	Yes	Analysis
2	George Top Schools 2025 (U9)	2025-07-26	2025-07-26	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
3	2025 WC Rural Cup (U10)	2025-06-14	2025-06-15	Standard	Eden (WEG)	6	6	0	Yes	Analysis
4	Dennie Chess Rapid Tournament Open 2025 (U9)	2025-05-24	2025-05-24	Rapid	Eden (WEG)	5	5	3	Yes	Analysis
5	Southern Knights Rapid 2025 (C)	2025-05-03	2025-05-03	Rapid	Eden (WEG)	7	7	2	Yes	Analysis
6	Eden Chess Trials 2 2025 (U10)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	6	Yes	Analysis
7	Eden Schools Chess Trials 1 2025 (U9 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	3	Yes	Analysis
8	George Schools Chess Trials 3 2025 (U9 Boys)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
9	George Schools Chess Trials 2 2025 (U9 Boys)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	3	Yes	Analysis
10	George Schools Chess Trials 1 2025 (U9 Boys)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
11	George Primary Top Schools 2024 (U9)	2024-07-20	2024-07-20	Standard	Eden (WEG)	5	5	4	Yes	Analysis
12	George Schools Trials 3 2024 (U9 Boys)	2024-03-02	2024-03-02	Standard	Eden (WEG)	5	5	2	Yes	Analysis
13	George Schools Trials 2 2024 (U9 Boys)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	2	Yes	Analysis
14	George Schools Trials 1 2024 (U9 Boys)	2024-02-03	2024-02-03	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
15	Western Cape Top Schools 2023 (U7 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	5	5	0.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament George Schools Chess Trials 2 2025				Tournament George Schools Chess Trials 3 2025
		date 2025-02-15	rnd 3	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Davis, M (Mason)				Opponent Mhlakaza, S (Siphosethu)
2	5	Tournament George Primary Top Schools 2024				Tournament George Schools Chess Trials 1 2025
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Damane, D (Dinga)				Opponent Kotze, B (Barend)
3	3	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-15	rnd 5	type Standard	result 1	date 2025-04-12	rnd 7	type Standard	result 1
		Opponent Codier, A (Aidan)				Opponent Modupe, L (Lesego)

#	Games	Start				End
1	5	Tournament George Schools Chess Trials 2 2025				Tournament George Schools Chess Trials 3 2025
		date 2025-02-15	rnd 3	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Davis, M (Mason)				Opponent Mhlakaza, S (Siphosethu)
2	5	Tournament George Primary Top Schools 2024				Tournament George Schools Chess Trials 1 2025
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Damane, D (Dinga)				Opponent Kotze, B (Barend)
3	3	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-15	rnd 5	type Standard	result 1	date 2025-04-12	rnd 7	type Standard	result 1
		Opponent Codier, A (Aidan)				Opponent Modupe, L (Lesego)

#	Games	Start				End
1	2	Tournament Dennie Chess Rapid Tournament Open 2025				Tournament Dennie Chess Rapid Tournament Open 2025
		date 2025-05-24	rnd 3	type Rapid	result 1	date 2025-05-24	rnd 4	type Rapid	result 1
		Opponent Salmons, C (Cayden)				Opponent Bruiners, J (Jeanne)
2	1	Tournament Dennie Chess Rapid Tournament Open 2025				Tournament Dennie Chess Rapid Tournament Open 2025
		date 2025-05-24	rnd 1	type Rapid	result 1	date 2025-05-24	rnd 1	type Rapid	result 1
		Opponent Whiteman, H (Harry)				Opponent Whiteman, H (Harry)
3	1	Tournament Southern Knights Rapid 2025				Tournament Southern Knights Rapid 2025
		date 2025-05-03	rnd 6	type Rapid	result 1	date 2025-05-03	rnd 6	type Rapid	result 1
		Opponent Booysen, J (Joshua)				Opponent Booysen, J (Joshua)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament George Schools Chess Trials 2 2025				Tournament George Schools Chess Trials 3 2025
		date 2025-02-15	rnd 3	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Davis, M (Mason)				Opponent Mhlakaza, S (Siphosethu)
2	5	Tournament George Primary Top Schools 2024				Tournament George Schools Chess Trials 1 2025
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Damane, D (Dinga)				Opponent Kotze, B (Barend)
3	3	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-15	rnd 5	type Standard	result 1	date 2025-04-12	rnd 7	type Standard	result 1
		Opponent Codier, A (Aidan)				Opponent Modupe, L (Lesego)

#	Games	Start				End
1	5	Tournament George Schools Chess Trials 2 2025				Tournament George Schools Chess Trials 3 2025
		date 2025-02-15	rnd 3	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Davis, M (Mason)				Opponent Mhlakaza, S (Siphosethu)
2	5	Tournament George Primary Top Schools 2024				Tournament George Schools Chess Trials 1 2025
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Damane, D (Dinga)				Opponent Kotze, B (Barend)
3	3	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-15	rnd 5	type Standard	result 1	date 2025-04-12	rnd 7	type Standard	result 1
		Opponent Codier, A (Aidan)				Opponent Modupe, L (Lesego)

#	Games	Start				End
1	2	Tournament Dennie Chess Rapid Tournament Open 2025				Tournament Dennie Chess Rapid Tournament Open 2025
		date 2025-05-24	rnd 3	type Rapid	result 1	date 2025-05-24	rnd 4	type Rapid	result 1
		Opponent Salmons, C (Cayden)				Opponent Bruiners, J (Jeanne)
2	1	Tournament Dennie Chess Rapid Tournament Open 2025				Tournament Dennie Chess Rapid Tournament Open 2025
		date 2025-05-24	rnd 1	type Rapid	result 1	date 2025-05-24	rnd 1	type Rapid	result 1
		Opponent Whiteman, H (Harry)				Opponent Whiteman, H (Harry)
3	1	Tournament Southern Knights Rapid 2025				Tournament Southern Knights Rapid 2025
		date 2025-05-03	rnd 6	type Rapid	result 1	date 2025-05-03	rnd 6	type Rapid	result 1
		Opponent Booysen, J (Joshua)				Opponent Booysen, J (Joshua)

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	Hessie ,L (Luke)	4	0	-425	3	0	-425	1	0	-425	0	0	0
1	Hessie ,L (Luke)	4	1371	946	3	1377.4	946	1	1252.5	946	0	0	0
2	Stoffels ,C (Connor)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
2	Stoffels ,C (Connor)	3	1276.4	1134.7	3	1274.9	1134.7	0	0	0	0	0	0
3	Edons ,M (Mihandro)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	Edons ,M (Mihandro)	3	1295.6	870.6	3	1281.9	870.6	0	0	0	0	0	0
4	Mhlakaza ,S (Siphosethu)	2	2	425	2	2	425	0	0	0	0	0	0
4	Mhlakaza ,S (Siphosethu)	2	1118.2	1543.2	2	1102.4	1543.2	0	0	0	0	0	0
5	Vivier ,J (Jaycee)	2	1	0	2	1	0	0	0	0	0	0	0
5	Vivier ,J (Jaycee)	2	1199.7	1199.7	2	1201.6	1199.7	0	0	0	0	0	0
6	Rheeder ,L (Logan)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Rheeder ,L (Logan)	2	1215.4	790.4	2	1225.5	790.4	0	0	0	0	0	0
7	Lengisi ,T (Thando)	2	1	0	2	1	0	0	0	0	0	0	0
7	Lengisi ,T (Thando)	2	1202.8	1202.8	2	1204.3	1202.8	0	0	0	0	0	0
8	Flores ,Z (Zhoe)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Flores ,Z (Zhoe)	2	1419.9	994.9	2	1432.3	994.9	0	0	0	0	0	0
9	Marner ,L (Loannes)	2	0	-425	1	0	-425	1	0	-425	0	0	0
9	Marner ,L (Loannes)	2	1345.3	920.3	1	1325.2	920.3	1	1129.2	920.3	0	0	0
10	Bruiners ,J (Jeanne)	2	1.5	212.5	1	0.5	0	1	1	425	0	0	0
10	Bruiners ,J (Jeanne)	2	1313.6	1526.1	1	1291	1313.6	1	1200	1738.6	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Heasman, J (JD)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms