Chess South Africa Ratings Database

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Personal

Jansen, R (Riaan Junior)

Chess SA id

1100193162

FIDE id

Date of birth

2010-06-13 (U16)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-04-12

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1269.5

Item	Main	Standard	Rapid	Blitz
Rating	1338.2	1352	1200	1200
Raw rating	1334.4	1347.8	1200	1200
Weighted rating	1338.2	1352	1200	1200
Weighted performance	1235.7	1238	0	0
Floor	855.3	874.5	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	136.9	134.3	165.8	165.8
Highest rating	1433.9 2024-03-01	1430.6 2024-03-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1355.3 2024-05-01	1374.5 2024-05-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1355.3 2024-10-01	1374.5 2024-10-01	1200 2024-02-01	1200 2024-02-01
Highest weighted performance	1433.9 2024-03-01	1430.6 2024-03-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	1.2	1.3	0	0
New rating	1339.4	1353.3	1200	1200
Analysis
Rating	1338.2	1352	1200	1200
Raw rating	1334.4	1347.8	1200	1200
Weighted rating	1338.2	1352	1200
Weighted performance	1235.7	1238	0
K-factor	36	36	36	36
Floor	855.3	874.5	700	700
Max/Min rating change allowed	136.9	134.3	165.8	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	1334.4	1347.8	1200	1200
New weighted rating	1339.4	1353.3	1200	1200
New weighted performance	1235.2	1237.5	0	0
Temp new rating	1339.4	1353.3	1200	1200
Temp new rating +/-	1.2	1.3	0	0
Final new rating +/-	1.2	1.3	0	0
New rating	1339.4	1353.3	1200	1200
New K-factor	36	36	36	36
New floor	855.3	874.5	700	700

Item	Main	Standard
	0	0
	25	25
	25	25
	0	0
	0	0
	0	0
History	50	50

Games since
	Main 50	Standard 50		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2802		897		248
Male	2252		672		186
U16	441		153		42
U16 Male	332		106		31
Standard
	RSA		Province		Region
Overall	2543		712		229
Male	2055		530		169
U16	408		130		44
U16 Male	312		91		33
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	25	14.5	58	68	1253.1	1321.1
Standard	25	14.5	58	68	1253.1	1321.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	50	31	62	102	1275.5	1377.5
Standard	50	31	62	102	1275.5	1377.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1334.4	1347.8	1200	1200
2025-09-01	1334.4	1347.8	1200	1200
2025-08-01	1334.4	1347.8	1200	1200
2025-07-01	1334.4	1345	1200	1200
2025-06-01	1334.4	1342.1	1200	1200
2025-05-01	1334.4	1339.1	1200	1200
2025-04-01	1354.4	1364.8	1200	1200
2025-03-01	1336.3	1344.8	1200	1200
2025-02-01	1355.3	1374.5	1200	1200
2025-01-01	1355.3	1374.5	1200	1200
2024-12-01	1355.3	1374.5	1200	1200
2024-11-01	1355.3	1374.5	1200	1200
2024-10-01	1355.3	1374.5	1200	1200
2024-09-01	1355.3	1374.5	1200	1200
2024-08-01	1355.3	1374.5	1200	1200
2024-07-01	1355.3	1374.5	1200	1200
2024-06-01	1355.3	1374.5	1200	1200
2024-08-01	1355.3	1374.5	1200	1200
2024-04-01	1320	1340.3	1200	1200
2024-03-01	1288	1307.2	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	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	Eden Chess Trials 2 2025 (U16)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	5	Yes	Analysis
2	Eden Schools Chess Trials 1 2025 (U15 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	3	Yes	Analysis
3	Oudussa Trials 2025 (U15)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
4	Oudussa Trials 2 2025 (U5 Boys+Girls)	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	Eden Chess Trials 2 2025 (U16)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	5	Yes	Analysis
2	Eden Schools Chess Trials 1 2025 (U15 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	3	Yes	Analysis
3	Oudussa Trials 2025 (U15)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
4	Oudussa Trials 2 2025 (U5 Boys+Girls)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
5	Eden Chess Trials 2 2024 (U16)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	6	Yes	Analysis
6	Eden School Chess Trials 1 2024 (U15 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	3	Yes	Analysis
7	OUDUSSA Trials 2 2024 (U15 Boys)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
8	OUDUSSA Trials 1 2024 (U15 Boys)	2024-02-03	2024-02-03	Standard	Eden (WEG)	5	5	4	Yes	Analysis

#	Games	Start				End
1	6	Tournament Oudussa Trials 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-01	rnd 1	type Standard	result 1	date 2025-03-08	rnd 1	type Standard	result 1
		Opponent Augustyn, J (Johan)				Opponent Kiewietz, J (Jayden)
2	6	Tournament Eden Chess Trials 2 2024				Tournament Oudussa Trials 2 2025
		date 2024-04-20	rnd 8	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Makriga, G (Geonio)				Opponent Arries, L (Leigh-Coulli)
3	4	Tournament OUDUSSA Trials 1 2024				Tournament OUDUSSA Trials 2 2024
		date 2024-02-03	rnd 5	type Standard	result 1	date 2024-02-17	rnd 3	type Standard	result 1
		Opponent Witbooi, S (Sergio)				Opponent Freeks, L (Llewellyn)

#	Games	Start				End
1	6	Tournament Oudussa Trials 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-01	rnd 1	type Standard	result 1	date 2025-03-08	rnd 1	type Standard	result 1
		Opponent Augustyn, J (Johan)				Opponent Kiewietz, J (Jayden)
2	6	Tournament Eden Chess Trials 2 2024				Tournament Oudussa Trials 2 2025
		date 2024-04-20	rnd 8	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Makriga, G (Geonio)				Opponent Arries, L (Leigh-Coulli)
3	4	Tournament OUDUSSA Trials 1 2024				Tournament OUDUSSA Trials 2 2024
		date 2024-02-03	rnd 5	type Standard	result 1	date 2024-02-17	rnd 3	type Standard	result 1
		Opponent Witbooi, S (Sergio)				Opponent Freeks, L (Llewellyn)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Oudussa Trials 2 2025				Tournament Oudussa Trials 2 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Bruintjies, G (Gyllinique)				Opponent Arries, L (Leigh-Coulli)
2	3	Tournament OUDUSSA Trials 1 2024				Tournament OUDUSSA Trials 1 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Stalmeester, E (Edward)				Opponent Botha, M (Mcearlin)
3	2	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-15	rnd 1	type Standard	result 1	date 2025-03-15	rnd 2	type Standard	result 1
		Opponent Pietersen, C (Chandre)				Opponent Jonas, D (Damian)

#	Games	Start				End
1	3	Tournament Oudussa Trials 2 2025				Tournament Oudussa Trials 2 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-01	rnd 3	type Standard	result 1
		Opponent Bruintjies, G (Gyllinique)				Opponent Arries, L (Leigh-Coulli)
2	3	Tournament OUDUSSA Trials 1 2024				Tournament OUDUSSA Trials 1 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Stalmeester, E (Edward)				Opponent Botha, M (Mcearlin)
3	2	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-15	rnd 1	type Standard	result 1	date 2025-03-15	rnd 2	type Standard	result 1
		Opponent Pietersen, C (Chandre)				Opponent Jonas, D (Damian)

No games found.

#	Games	Start				End

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	Groenewald ,C (Cameron)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Groenewald ,C (Cameron)	3	1234.3	1376	3	1238.7	1376	0	0	0	0	0	0
2	Witbooi ,S (Sergio)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
2	Witbooi ,S (Sergio)	3	1234	1375.6	3	1238.7	1375.6	0	0	0	0	0	0
3	Arpin ,L (Lukas)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
3	Arpin ,L (Lukas)	2	1416.3	1628.8	2	1409.1	1628.8	0	0	0	0	0	0
4	Botha ,M (Mcearlin)	2	2	425	2	2	425	0	0	0	0	0	0
4	Botha ,M (Mcearlin)	2	1251.6	1676.6	2	1261.1	1676.6	0	0	0	0	0	0
5	Mcana ,S (Sibusiso)	2	1	0	2	1	0	0	0	0	0	0	0
5	Mcana ,S (Sibusiso)	2	1248.4	1248.4	2	1257.4	1248.4	0	0	0	0	0	0
6	Makriga ,G (Gionia)	2	2	425	2	2	425	0	0	0	0	0	0
6	Makriga ,G (Gionia)	2	1271.8	1696.8	2	1270.8	1696.8	0	0	0	0	0	0
7	Augustyn ,J (Johan)	1	1	425	1	1	425	0	0	0	0	0	0
7	Augustyn ,J (Johan)	1	1148.5	1573.5	1	1148.4	1573.5	0	0	0	0	0	0
8	Magomarele ,R (Rachel)	1	1	425	1	1	425	0	0	0	0	0	0
8	Magomarele ,R (Rachel)	1	1160.8	1585.8	1	1144.8	1585.8	0	0	0	0	0	0
9	Keteldas ,F (Ferdriano)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Keteldas ,F (Ferdriano)	1	1235.2	1235.2	1	1234.3	1235.2	0	0	0	0	0	0
10	Thorne ,J (Joey)	1	1	425	1	1	425	0	0	0	0	0	0
10	Thorne ,J (Joey)	1	1218.5	1643.5	1	1215.6	1643.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Jansen, R (Riaan Junior)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms