Chess South Africa Ratings Database

PLAYER PAGE

Personal

Petersen, JD (John-Wayne Dwight)

Chess SA id

106065429

FIDE id

Date of birth

2006-02-13 (U20)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1501.3	1480.5	1199.8	938
Raw rating	1501.3	1480.5	1199.8	938
Weighted rating	1488	1478.6	889.2	938
Weighted performance	1399.5	1183.2	0	0
Floor	1040.6	1043.5	699.8	500
K-factor	32	32	40	40
Min/Max rating change allowed	107.9	111.2	165.9	240.8
Highest rating	1542.8 2023-05-01	1543.5 2023-06-01	1200 2018-02-01	1216.6 2023-12-01
Highest raw rating	1540.6 2023-06-01	1543.5 2023-06-01	1199.8 2025-11-01	938 2024-02-01
Highest weighted rating	1540.6 2024-04-01	1543.5 2024-04-01	889.2 2025-11-01	938 2024-11-01
Highest weighted performance	1542.8 2023-05-01	1529.9 2023-05-01	1200 2018-02-01	1216.6 2023-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1501.3	1480.5	1199.8	938
Analysis
Rating	1501.3	1480.5	1199.8	938
Raw rating	1501.3	1480.5	1199.8	938
Weighted rating	1488	1478.6	889.2
Weighted performance	1399.5	1183.2	0
K-factor	32	32	40	40
Floor	1040.6	1043.5	699.8	500
Max/Min rating change allowed	107.9	111.2	165.9	240.8
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	1501.3	1480.5	1199.8	938
New weighted rating	1489.2	1478.8	915.4	938
New weighted performance	1391	1174.6	0	0
Temp new rating	1501.3	1480.5	1199.8	938
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1501.3	1480.5	1199.8	938
New K-factor	32	32	40	40
New floor	1040.6	1043.5	699.8	500

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	17	0	17	0
	31	31	0	0
	44	37	0	7
	21	21	0	0
	0	0	0	0
History	335	288	40	7

Games since
	Main 59	Standard 35		Rapid 17		Blitz 7
Gender	Male
Age group	U20
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1266		399		93
Male	1083		336		80
U20	114		41		7
U20 Male	93		36		6
Standard
	RSA		Province		Region
Overall	1358		374		88
Male	1147		305		71
U20	123		41		8
U20 Male	99		36		7
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	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	64.71	125	1416.2	1541.2
Standard	0	0	0	0	0	0
Rapid	17	11	64.71	125	1416.2	1541.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	224	152	67.86	151.8	1241.1	1392.8
Standard	194	135	69.59	166.5	1223.2	1389.7
Rapid	23	14	60.87	92.4	1309.8	1402.2
Blitz	7	3	42.86	-60.7	1508.7	1448

Date	Main	Standard	Rapid	Blitz
2025-11-01	1501.3	1480.5	1199.8	938
2025-09-30	1488.7	1480.5	969.6	938
2025-09-01	1488.5	1480.5	852.4	938
2025-08-01	1488.5	1480.5	852.4	938
2025-07-01	1488.5	1480.5	852.4	938
2025-06-01	1488.5	1480.5	852.4	938
2025-05-01	1488.5	1480.5	852.4	938
2025-04-01	1488.5	1480.5	852.4	938
2025-03-01	1488.5	1480.5	852.4	938
2025-02-01	1488.5	1480.5	852.4	938
2025-01-01	1482.7	1472.8	852.4	938
2024-12-01	1482.7	1472.8	852.4	938
2024-11-01	1482.7	1472.8	852.4	938
2024-10-01	1482.7	1472.8	852.4	938
2024-09-01	1482.7	1472.8	852.4	938
2024-08-01	1482.7	1472.8	852.4	938
2024-07-01	1482.7	1472.8	852.4	938
2024-09-01	1482.7	1472.8	852.4	938
2024-05-01	1482.7	1472.8	852.4	938
2024-04-01	1503.9	1500.3	852.4	938
2024-03-01	1501.8	1504.8	852.4	938
2024-02-01	1476.6	1468	852.4	938
2024-01-01	1476.6	1468	852.4	938
2023-12-01	1476.6	1468	852.4	938

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	Uben Roode Foundation Open 2025 (2)	2025-10-25	2025-10-25	Rapid	Eden (WEG)	6	5	3.5	Yes	Analysis
2	Oudtshoorn Extended Heritage Tournament 2025	2025-09-27	2025-09-27	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
3	Oudtshoorn Heritage Tournament 2025	2025-09-24	2025-09-24	Rapid	Eden (WEG)	6	6	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Uben Roode Foundation Open 2025 (2)	2025-10-25	2025-10-25	Rapid	Eden (WEG)	6	5	3.5	Yes	Analysis
2	Oudtshoorn Extended Heritage Tournament 2025	2025-09-27	2025-09-27	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
3	Oudtshoorn Heritage Tournament 2025	2025-09-24	2025-09-24	Rapid	Eden (WEG)	6	6	3.5	Yes	Analysis
4	Eden Chess Trials 2 2024 (U20)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	6	Yes	Analysis
5	Western Cape HS Individuals Championship 2024 (U18 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	4	Yes	Analysis
6	Eden School Chess Trials 1 2024 (U18 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	3	Yes	Analysis
7	OUDUSSA Trials 2 2024 (U18 Boys+Girls)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	4.5	Yes	Analysis
8	OUDUSSA Trials 1 2024 (U18 Boys)	2024-02-03	2024-02-03	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
9	2023 Western Cape Rural Cup (U18)	2023-12-09	2023-12-10	Standard	Cape Winelands (WCW)	5	4	1.5	Yes	Analysis
10	2023 Western Cape Rural Cup (Blitz)	2023-12-08	2023-12-08	Blitz	Cape Winelands (WCW)	7	7	3	Yes	Analysis
11	Western Cape Club Championships 2023 (Tier 2)	2023-10-21	2023-10-22	Standard	Eden (WEG)	5	2	0	Yes	Analysis
12	Eden Top Schools 2023 (U18 Mix)	2023-08-19	2023-08-19	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
13	Eden Trials 2+3 2023 (U18)	2023-04-15	2023-05-13	Standard	Eden (WEG)	10	10	8.5	Yes	Analysis
14	Western Cape HS Individuals 2023 (U17 Boys)	2023-04-01	2023-04-02	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
15	Eden Trails 1 2023 (U17 Boys)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	5	4	Yes	Analysis
16	Oudussa Proewe 1 2023 (U19 Boys)	2023-02-11	2023-02-11	Standard	Eden (WEG)	5	5	5	Yes	Analysis
17	George Open 2022 (B)	2022-12-03	2022-12-03	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
18	Western Cape Schools Chess 2022 (U18 Boys)	2022-05-07	2022-05-08	Standard	Eden (WEG)	6	6	4	Yes	Analysis
19	Eden Proewe 2 2022 (O18 Seuns)	2022-04-09	2022-04-09	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
20	Eden Proewe 1 2022 (O18 Seuns)	2022-03-12	2022-03-12	Standard	Eden (WEG)	5	5	4.5	Yes	Analysis
21	Eden Schools Closed Trials 1 2020 (U15 Boys)	2020-03-07	2020-03-07	Standard	Eden (WEG)	5	5	4	Yes	Analysis
22	Oudtshoorn Proewe 1 2020 (O15)	2020-02-15	2020-02-15	Standard	Eden (WEG)	5	5	4	Yes	Analysis
23	2019 South African Junior Team Championships (U14B)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
24	Eden Trials 3 2019 (U14 Open)	2019-05-11	2019-05-11	Standard	Eden (WEG)	5	5	4	Yes	Analysis
25	Western Cape Schools Individuals 2019 (U13 Boys)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	6	3.5	Yes	Analysis
26	Eden Trials 2 2019 (U14 Open)	2019-04-13	2019-04-13	Standard	Eden (WEG)	5	5	4	Yes	Analysis
27	Eden Trials 1 2019 (U14 Open)	2019-03-02	2019-03-02	Standard	Eden (WEG)	5	5	4	Yes	Analysis
28	Oudtshoorn Trials 3 2019 (U14)	2019-02-16	2019-02-16	Standard	Eden (WEG)	5	4	4	Yes	Analysis
29	Oudtshoorn Trials 2 2019 (U14)	2019-02-09	2019-02-09	Standard	Eden (WEG)	5	5	4	Yes	Analysis
30	Oudtshoorn Trials 1 2019 (U14)	2019-01-19	2019-01-19	Standard	Eden (WEG)	5	5	4.5	Yes	Analysis
31	2018 African Schools Individual Chess Championships	2018-12-06	2018-12-12	Standard	Tshwane (GTP)	9	8	3	Yes	Analysis
32	2018 Wild Card Chess Championships (U14 Open)	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	6	3	Yes	Analysis
33	South African Junior Team Championships 2018 (U14A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis
34	Oyster Rapid 2018	2018-07-07	2018-07-07	Rapid	Eden (WEG)	6	6	3	Yes	Analysis
35	Pacaltsdorp Chess Club Open 2018 (B)	2018-05-25	2018-05-26	Standard	Eden (WEG)	6	4	3	Yes	Analysis
36	EDENSC Closed 3 2018 (U14 Open)	2018-05-12	2018-05-12	Standard	Eden (WEG)	5	5	4	Yes	Analysis
37	Western Cape Schools Individuals 2018 (U13 Boys)	2018-05-19	2018-05-20	Standard	Overberg (WOS)	6	6	4	Yes	Analysis
38	EDENSC Closed 2 2018 (U14 Open)	2018-04-14	2018-04-14	Standard	Eden (WEG)	5	5	4	Yes	Analysis
39	EDENSC Closed 1 2018 (U14 Boys)	2018-03-10	2018-03-10	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
40	South African Junior Team Championships 2017 (U12B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	6	Yes	Analysis

#	Games	Start				End
1	11	Tournament Eden Trials 1 2019				Tournament Eden Trials 3 2019
		date 2019-03-02	rnd 4	type Standard	result 1	date 2019-05-11	rnd 4	type Standard	result 1
		Opponent Barnardo, M (Miguel)				Opponent Heesen, T (Tyler)
2	9	Tournament George Open 2022				Tournament Eden Trails 1 2023
		date 2022-12-03	rnd 3	type Standard	result 0.5	date 2023-03-11	rnd 1	type Standard	result 1
		Opponent Thoresen, K (Kyle)				Opponent Van Niekerk, S (Shayden Jade)
3	9	Tournament Eden Proewe 1 2022				Tournament Eden Proewe 2 2022
		date 2022-03-12	rnd 1	type Standard	result 1	date 2022-04-09	rnd 4	type Standard	result 1
		Opponent Sefoor, J (Jordan)				Opponent Le Roux, N (Nicolaas)

#	Games	Start				End
1	11	Tournament Eden Trials 1 2019				Tournament Eden Trials 3 2019
		date 2019-03-02	rnd 4	type Standard	result 1	date 2019-05-11	rnd 4	type Standard	result 1
		Opponent Barnardo, M (Miguel)				Opponent Heesen, T (Tyler)
2	9	Tournament George Open 2022				Tournament Eden Trails 1 2023
		date 2022-12-03	rnd 3	type Standard	result 0.5	date 2023-03-11	rnd 1	type Standard	result 1
		Opponent Thoresen, K (Kyle)				Opponent Van Niekerk, S (Shayden Jade)
3	9	Tournament Eden Proewe 1 2022				Tournament Eden Proewe 2 2022
		date 2022-03-12	rnd 1	type Standard	result 1	date 2022-04-09	rnd 4	type Standard	result 1
		Opponent Sefoor, J (Jordan)				Opponent Le Roux, N (Nicolaas)

#	Games	Start				End
1	2	Tournament Oudtshoorn Heritage Tournament 2025				Tournament Oudtshoorn Heritage Tournament 2025
		date 2025-09-24	rnd 3	type Rapid	result 0.5	date 2025-09-24	rnd 4	type Rapid	result 1
		Opponent Kuyler, L (Luzandri)				Opponent Rabie, M (Mizelle)
2	2	Tournament Oyster Rapid 2018				Tournament Oyster Rapid 2018
		date 2018-07-07	rnd 4	type Rapid	result 1	date 2018-07-07	rnd 5	type Rapid	result 1
		Opponent Stafford, P (Paul)				Opponent Pietersen, M (Marlon)
3	1	Tournament Oudtshoorn Heritage Tournament 2025				Tournament Oudtshoorn Heritage Tournament 2025
		date 2025-09-24	rnd 6	type Rapid	result 1	date 2025-09-24	rnd 6	type Rapid	result 1
		Opponent Langdon, M (Maurice)				Opponent Langdon, M (Maurice)

#	Games	Start				End
1	1	Tournament 2023 Western Cape Rural Cup				Tournament 2023 Western Cape Rural Cup
		date 2023-12-08	rnd 7	type Blitz	result 1	date 2023-12-08	rnd 7	type Blitz	result 1
		Opponent Pekeur, A (Amy)				Opponent Pekeur, A (Amy)
2	1	Tournament 2023 Western Cape Rural Cup				Tournament 2023 Western Cape Rural Cup
		date 2023-12-08	rnd 3	type Blitz	result 1	date 2023-12-08	rnd 3	type Blitz	result 1
		Opponent Van Niekerk, N (Nina)				Opponent Van Niekerk, N (Nina)
3	1	Tournament 2023 Western Cape Rural Cup				Tournament 2023 Western Cape Rural Cup
		date 2023-12-08	rnd 1	type Blitz	result 1	date 2023-12-08	rnd 1	type Blitz	result 1
		Opponent Prins, R (Reinhart)				Opponent Prins, R (Reinhart)

#	Games	Start				End
1	8	Tournament George Open 2022				Tournament Eden Trails 1 2023
		date 2022-12-03	rnd 4	type Standard	result 1	date 2023-03-11	rnd 1	type Standard	result 1
		Opponent Pietersen, E (Enzalin)				Opponent Van Niekerk, S (Shayden Jade)
2	7	Tournament Oudtshoorn Trials 2 2019				Tournament Eden Trials 1 2019
		date 2019-02-09	rnd 5	type Standard	result 1	date 2019-03-02	rnd 2	type Standard	result 1
		Opponent Saayman, JM (Johannes)				Opponent Kasper, V (Vernon)
3	6	Tournament OUDUSSA Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 2	type Standard	result 1	date 2024-03-09	rnd 2	type Standard	result 1
		Opponent Piennaar, A (Anthen)				Opponent Saaiman, L (Luwayden)

#	Games	Start				End
1	8	Tournament George Open 2022				Tournament Eden Trails 1 2023
		date 2022-12-03	rnd 4	type Standard	result 1	date 2023-03-11	rnd 1	type Standard	result 1
		Opponent Pietersen, E (Enzalin)				Opponent Van Niekerk, S (Shayden Jade)
2	7	Tournament Oudtshoorn Trials 2 2019				Tournament Eden Trials 1 2019
		date 2019-02-09	rnd 5	type Standard	result 1	date 2019-03-02	rnd 2	type Standard	result 1
		Opponent Saayman, JM (Johannes)				Opponent Kasper, V (Vernon)
3	6	Tournament OUDUSSA Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 2	type Standard	result 1	date 2024-03-09	rnd 2	type Standard	result 1
		Opponent Piennaar, A (Anthen)				Opponent Saaiman, L (Luwayden)

#	Games	Start				End
1	2	Tournament Oyster Rapid 2018				Tournament Oyster Rapid 2018
		date 2018-07-07	rnd 4	type Rapid	result 1	date 2018-07-07	rnd 5	type Rapid	result 1
		Opponent Stafford, P (Paul)				Opponent Pietersen, M (Marlon)
2	1	Tournament Oudtshoorn Heritage Tournament 2025				Tournament Oudtshoorn Heritage Tournament 2025
		date 2025-09-24	rnd 6	type Rapid	result 1	date 2025-09-24	rnd 6	type Rapid	result 1
		Opponent Langdon, M (Maurice)				Opponent Langdon, M (Maurice)
3	1	Tournament Oudtshoorn Heritage Tournament 2025				Tournament Oudtshoorn Heritage Tournament 2025
		date 2025-09-24	rnd 4	type Rapid	result 1	date 2025-09-24	rnd 4	type Rapid	result 1
		Opponent Rabie, M (Mizelle)				Opponent Rabie, M (Mizelle)

#	Games	Start				End
1	1	Tournament 2023 Western Cape Rural Cup				Tournament 2023 Western Cape Rural Cup
		date 2023-12-08	rnd 7	type Blitz	result 1	date 2023-12-08	rnd 7	type Blitz	result 1
		Opponent Pekeur, A (Amy)				Opponent Pekeur, A (Amy)
2	1	Tournament 2023 Western Cape Rural Cup				Tournament 2023 Western Cape Rural Cup
		date 2023-12-08	rnd 3	type Blitz	result 1	date 2023-12-08	rnd 3	type Blitz	result 1
		Opponent Van Niekerk, N (Nina)				Opponent Van Niekerk, N (Nina)
3	1	Tournament 2023 Western Cape Rural Cup				Tournament 2023 Western Cape Rural Cup
		date 2023-12-08	rnd 1	type Blitz	result 1	date 2023-12-08	rnd 1	type Blitz	result 1
		Opponent Prins, R (Reinhart)				Opponent Prins, R (Reinhart)

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	Jordaan ,T (Thor)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Jordaan ,T (Thor)	3	1244.1	1385.8	3	1243.2	1385.8	0	0	0	0	0	0
2	Sefoor ,J (Jordan)	3	3	425	3	3	425	0	0	0	0	0	0
2	Sefoor ,J (Jordan)	3	1219.2	1644.2	3	1206	1644.2	0	0	0	0	0	0
3	Manho ,L (Leancon)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
3	Manho ,L (Leancon)	3	1312.5	1170.8	3	1293.3	1170.8	0	0	0	0	0	0
4	Geyser ,K (Kobus)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
4	Geyser ,K (Kobus)	3	1372.5	1089.2	3	1374.5	1089.2	0	0	0	0	0	0
5	Saayman ,JM (Johannes Michael)	3	3	425	3	3	425	0	0	0	0	0	0
5	Saayman ,JM (Johannes Michael)	3	850.9	1275.9	3	856.5	1275.9	0	0	0	0	0	0
6	Prins ,E (Ethan)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
6	Prins ,E (Ethan)	3	1323.8	1465.5	3	1322.3	1465.5	0	0	0	0	0	0
7	Meyer ,J (Jared)	3	1	-141.7	2	1	0	1	0	-425	0	0	0
7	Meyer ,J (Jared)	3	1360	1218.3	2	1534.9	1360	1	500	935	0	0	0
8	Oliphant ,H (Heinrich)	3	0	-425	0	0	0	3	0	-425	0	0	0
8	Oliphant ,H (Heinrich)	3	1517	1092	0	0	0	3	1431.4	1092	0	0	0
9	Langdon ,M (Maurice)	3	2.5	283.3	0	0	0	3	2.5	283.3	0	0	0
9	Langdon ,M (Maurice)	3	1206.9	1490.2	0	0	0	3	1198.9	1490.2	0	0	0
10	Claassen ,R (Ruwaldo)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
10	Claassen ,R (Ruwaldo)	2	1452.3	1239.8	2	1441	1239.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Petersen, JD (John-Wayne Dwight)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms