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 (U18)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-11-01

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1349.6	1354.3	1237.1	1234.6
Raw rating	1349.6	1347.8	1237.1	1234.6
Weighted rating	1342.9	1354.3	1205.8	1205.4
Weighted performance	1271.2	1195.3	0	0
Floor	855.3	874.5	737.1	734.6
K-factor	36	36	36	36
Min/Max rating change allowed	134	134.3	157.3	157.8
Highest rating	1433.9 2024-03-01	1430.6 2024-03-01	1237.1 2025-11-30	1234.6 2025-11-30
Highest raw rating	1355.3 2024-05-01	1374.5 2024-05-01	1237.1 2025-11-30	1234.6 2025-11-30
Highest weighted rating	1355.3 2024-10-01	1374.5 2024-10-01	1203 2025-11-30	1202.8 2025-11-30
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	0	-0.2	0	0
New rating	1349.6	1354.1	1237.1	1234.6
Analysis
Rating	1349.6	1354.3	1237.1	1234.6
Raw rating	1349.6	1347.8	1237.1	1234.6
Weighted rating	1342.9	1354.3	1205.8
Weighted performance	1271.2	1195.3	0
K-factor	36	36	36	36
Floor	855.3	874.5	737.1	734.6
Max/Min rating change allowed	134	134.3	157.3	157.8
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	1349.6	1347.8	1237.1	1234.6
New weighted rating	1343.9	1354.1	1208.5	1207.9
New weighted performance	1262.5	1186.6	0	0
Temp new rating	1349.6	1354.1	1237.1	1234.6
Temp new rating +/-	0	-0.2	0	0
Final new rating +/-	0	-0.2	0	0
New rating	1349.6	1354.1	1237.1	1234.6
New K-factor	36	36	36	36
New floor	855.3	874.5	737.1	734.6

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	37	25	6	6
	25	25	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	62	50	6	6

Games since
	Main 62	Standard 50		Rapid 6		Blitz 6
Gender	Male
Age group	U16
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2730		872		241
Male	2185		670		182
U16	433		145		42
U16 Male	323		104		31
Standard
	RSA		Province		Region
Overall	2599		734		221
Male	2084		555		162
U16	416		130		43
U16 Male	313		92		32
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	37	21	56.76	57.4	1304.7	1362.1
Standard	25	14.5	58	68	1253.1	1321.1
Rapid	6	3.5	58.33	70.8	1365.5	1436.3
Blitz	6	3	50	0	1458.7	1458.7
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	62	37.5	60.48	89.1	1301.9	1391.1
Standard	50	31	62	102	1275.5	1377.5
Rapid	6	3.5	58.33	70.8	1365.5	1436.3
Blitz	6	3	50	0	1458.7	1458.7

Date	Main	Standard	Rapid	Blitz
2026-01-01	1349.6	1347.8	1237.1	1234.6
2025-11-30	1349.6	1347.8	1237.1	1234.6
2025-11-01	1334.4	1347.8	1200	1200
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
2024-11-01	1355.3	1374.5	1200	1200
2024-07-01	1355.3	1374.5	1200	1200
2024-06-01	1355.3	1374.5	1200	1200
2024-05-01	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

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	Uben Roode Foundation 2025 (Rapid)	2025-11-01	2025-11-01	Rapid	Eden (WEG)	6	6	3.5	Yes	Analysis
2	Uben Roode Foundation 2025 (Blitz)	2025-10-31	2025-10-31	Blitz	Eden (WEG)	6	6	3	Yes	Analysis
3	Eden Chess Trials 2 2025 (U16)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	5	Yes	Analysis
4	Eden Schools Chess Trials 1 2025 (U15 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	3	Yes	Analysis
5	Oudussa Trials 2025 (U15)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
6	Oudussa Trials 2 2025 (U5 Boys+Girls)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
7	Eden Chess Trials 2 2024 (U16)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	6	Yes	Analysis
8	Eden School Chess Trials 1 2024 (U15 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	3	Yes	Analysis
9	OUDUSSA Trials 2 2024 (U15 Boys)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
10	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	Mcana ,S (Sibusiso)	2	1	0	2	1	0	0	0	0	0	0	0
3	Mcana ,S (Sibusiso)	2	1248.4	1248.4	2	1257.4	1248.4	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	Makriga ,G (Gionia)	2	2	425	2	2	425	0	0	0	0	0	0
5	Makriga ,G (Gionia)	2	1271.8	1696.8	2	1270.8	1696.8	0	0	0	0	0	0
6	Arpin ,L (Lukas)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
6	Arpin ,L (Lukas)	2	1416.3	1628.8	2	1409.1	1628.8	0	0	0	0	0	0
7	Plaatjies ,R (Rumark)	2	1.5	212.5	1	1	425	1	0.5	0	0	0	0
7	Plaatjies ,R (Rumark)	2	1192.8	1405.2	1	1156	1617.8	1	1198.1	1192.8	0	0	0
8	Suka ,S (Sithembisosethu)	2	1	0	1	0	-425	1	1	425	0	0	0
8	Suka ,S (Sithembisosethu)	2	1445.2	1445.2	1	1445.6	1020.2	1	1200	1870.2	0	0	0
9	Suka ,L (Liyema)	2	2	425	0	0	0	1	1	425	1	1	425
9	Suka ,L (Liyema)	2	1239.1	1664.1	0	0	0	1	1200	1664.1	1	1200	1664.1
10	Witbooi ,R (Rudolf)	2	0	-425	0	0	0	1	0	-425	1	0	-425
10	Witbooi ,R (Rudolf)	2	1328.9	903.9	0	0	0	1	1267	903.9	1	1450.9	903.9

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

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