Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kruger, J (Janco)

Chess SA id

1150161801

FIDE id

Date of birth

2015-01-13 (U12)

Gender

Male

Region

Dr Kenneth Kaunda (NWP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-12-07

Personal details last changed

2025-11-18

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1257.1	1258.3	1232	1200
Raw rating	1257.1	1258.3	1232	1200
Weighted rating	1228.2	1215.2	1232	1200
Weighted performance	0	0	0	0
Floor	770	770.6	732	700
K-factor	36	36	36	36
Min/Max rating change allowed	152.9	152.6	158.4	165.8
Highest rating	1274.3 2023-09-01	1270.6 2025-11-01	1361 2023-09-01	1200 2018-10-01
Highest raw rating	1270 2025-11-01	1270.6 2025-11-01	1232 2024-03-01	1200 2024-03-01
Highest weighted rating	1228.2 2026-01-01	1215.2 2026-01-01	1232 2025-08-01	1200 2018-10-01
Highest weighted performance	1274.3 2023-09-01	1200 2024-03-01	1361 2023-09-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1257.1	1258.3	1232	1200
Analysis
Rating	1257.1	1258.3	1232	1200
Raw rating	1257.1	1258.3	1232	1200
Weighted rating	1228.2	1215.2	1232
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	770	770.6	732	700
Max/Min rating change allowed	152.9	152.6	158.4	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	1257.1	1258.3	1232	1200
New weighted rating	1231	1219.3	1232	1200
New weighted performance	0	0	0	0
Temp new rating	1257.1	1258.3	1232	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1257.1	1258.3	1232	1200
New K-factor	36	36	36	36
New floor	770	770.6	732	700

Item	Main	Standard	Rapid
	0	0	0
	10	10	0
	0	0	0
	5	0	5
	0	0	0
	0	0	0
History	15	10	5

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	M
Age group	U12
Region	Dr Kenneth Kaunda (NWP)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
M	-1		-1		-1
U12	-1		-1		-1
U12 M	-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	6	60	85	1283.3	1368.3
Standard	10	6	60	85	1283.3	1368.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	15	9	60	85	1274.1	1359.1
Standard	10	6	60	85	1283.3	1368.3
Rapid	5	3	60	85	1255.9	1340.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1257.1	1258.3	1232	1200
2025-11-30	1270	1270.6	1232	1200
2025-11-01	1270	1270.6	1232	1200
2025-09-30	1217.1	1200	1232	1200
2025-09-01	1217.1	1200	1232	1200
2025-08-01	1217.1	1200	1232	1200
2025-07-01	1217.1	1200	1232	1200
2025-06-01	1217.1	1200	1232	1200
2025-05-01	1217.1	1200	1232	1200
2025-04-01	1217.1	1200	1232	1200
2025-03-01	1217.1	1200	1232	1200
2025-02-01	1217.1	1200	1232	1200
2025-01-01	1217.1	1200	1232	1200
2024-12-01	1217.1	1200	1232	1200
2024-11-01	1217.1	1200	1232	1200
2024-10-01	1217.1	1200	1232	1200
2024-09-01	1217.1	1200	1232	1200
2024-11-01	1217.1	1200	1232	1200
2024-07-01	1217.1	1200	1232	1200
2024-06-01	1217.1	1200	1232	1200
2024-05-01	1217.1	1200	1232	1200
2024-04-01	1217.1	1200	1232	1200
2024-03-01	1217.1	1200	1232	1200
2024-02-01	1217.1	1200	1232	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	Gauteng Inter-Region at Emerald Resort 2025 (U12 Championship)	2025-12-06	2025-12-07	Standard	Sedibeng (GSV)	5	5	1	Yes	Analysis
2	DR KK Chess Volkies 2025 (U12)	2025-10-18	2025-10-18	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
3	Dr KK Regional Trials Potch 2025 (U12)	2025-09-27	2025-09-27	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
4	Mpumalanga Final 2023 (U9)	2023-09-02	2023-09-02	Rapid	Gert Sibande (MGS)	5	5	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament DR KK Chess Volkies 2025				Tournament DR KK Chess Volkies 2025
		date 2025-10-18	rnd 1	type Standard	result 1	date 2025-10-18	rnd 2	type Standard	result 1
		Opponent Tschoume, S (Stanley)				Opponent Thiart, J (Joe)
2	2	Tournament Dr KK Regional Trials Potch 2025				Tournament Dr KK Regional Trials Potch 2025
		date 2025-09-27	rnd 3	type Standard	result 1	date 2025-09-27	rnd 4	type Standard	result 1
		Opponent Mokoena, T (Thato)				Opponent Kapp, S (Samuel)
3	2	Tournament Mpumalanga Final 2023				Tournament Mpumalanga Final 2023
		date 2023-09-02	rnd 3	type Rapid	result 1	date 2023-09-02	rnd 4	type Rapid	result 1
		Opponent Immelman, J (Jarcovic)				Opponent Thwala, U (Uminathi)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Mpumalanga Final 2023				Tournament Mpumalanga Final 2023
		date 2023-09-02	rnd 3	type Rapid	result 1	date 2023-09-02	rnd 4	type Rapid	result 1
		Opponent Immelman, J (Jarcovic)				Opponent Thwala, U (Uminathi)
2	1	Tournament Mpumalanga Final 2023				Tournament Mpumalanga Final 2023
		date 2023-09-02	rnd 1	type Rapid	result 1	date 2023-09-02	rnd 1	type Rapid	result 1
		Opponent Cawood, L (Luan)				Opponent Cawood, L (Luan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Mpumalanga Final 2023				Tournament Mpumalanga Final 2023
		date 2023-09-02	rnd 3	type Rapid	result 1	date 2023-09-02	rnd 4	type Rapid	result 1
		Opponent Immelman, J (Jarcovic)				Opponent Thwala, U (Uminathi)
2	1	Tournament Mpumalanga Final 2023				Tournament Mpumalanga Final 2023
		date 2023-09-02	rnd 1	type Rapid	result 1	date 2023-09-02	rnd 1	type Rapid	result 1
		Opponent Cawood, L (Luan)				Opponent Cawood, L (Luan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Mpumalanga Final 2023				Tournament Mpumalanga Final 2023
		date 2023-09-02	rnd 3	type Rapid	result 1	date 2023-09-02	rnd 4	type Rapid	result 1
		Opponent Immelman, J (Jarcovic)				Opponent Thwala, U (Uminathi)
2	1	Tournament Mpumalanga Final 2023				Tournament Mpumalanga Final 2023
		date 2023-09-02	rnd 1	type Rapid	result 1	date 2023-09-02	rnd 1	type Rapid	result 1
		Opponent Cawood, L (Luan)				Opponent Cawood, L (Luan)

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	Mokoena ,T (Thato)	2	2	425	2	2	425	0	0	0	0	0	0
1	Mokoena ,T (Thato)	2	1182.9	1607.9	2	1178.9	1607.9	0	0	0	0	0	0
2	Tschoume ,S (Stanley)	1	1	425	1	1	425	0	0	0	0	0	0
2	Tschoume ,S (Stanley)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Kapp ,S (Samuel)	1	1	425	1	1	425	0	0	0	0	0	0
3	Kapp ,S (Samuel)	1	1222	1647	1	1226.9	1647	0	0	0	0	0	0
4	Labuschagne ,G (Gian)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Labuschagne ,G (Gian)	1	1516.1	1091.1	1	1506.2	1091.1	0	0	0	0	0	0
5	Scholtz ,I (Imke)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Scholtz ,I (Imke)	1	1483.3	1058.3	1	1475.1	1058.3	0	0	0	0	0	0
6	le Roux ,Z (Zach)	1	1	425	1	1	425	0	0	0	0	0	0
6	le Roux ,Z (Zach)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Thiart ,J (Joe)	1	1	425	1	1	425	0	0	0	0	0	0
7	Thiart ,J (Joe)	1	1243.8	1668.8	1	1255.6	1668.8	0	0	0	0	0	0
8	Mochoanchoeng ,T (Thato)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Mochoanchoeng ,T (Thato)	1	1377.5	952.5	1	1376.8	952.5	0	0	0	0	0	0
9	Conradie ,N (Nandus)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Conradie ,N (Nandus)	1	1224.1	799.1	1	1225.2	799.1	0	0	0	0	0	0
10	Esterhuizen ,Z (Zac)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Esterhuizen ,Z (Zac)	1	1260.7	835.7	0	0	0	1	1280	835.7	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Kruger, J (Janco)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms