Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jansen, D (Dihann)

Chess SA id

1150144082

FIDE id

Date of birth

2015-04-10 (U12)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-26

Personal details last changed

1900-01-01

Junior GPX Games

13.3

Junior GPX Points

1067.1

Item	Main	Standard	Rapid	Blitz
Rating	1244.3	1221.4	1239.8	1200
Raw rating	1244.3	1220.1	1239.8	1200
Weighted rating	1228.6	1221.4	1211.9	1200
Weighted performance	1068.6	0	0	0
Floor	744.3	734.7	739.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	155.7	161.1	156.7	165.8
Highest rating	1244.3 2025-08-01	1234.7 2025-02-01	1239.8 2025-08-01	1200 2018-10-01
Highest raw rating	1244.3 2025-08-01	1234.7 2025-02-01	1239.8 2025-08-01	1200 2024-02-01
Highest weighted rating	1235.1 2025-03-01	1234.7 2025-03-01	1203.2 2025-08-01	1200 2018-10-01
Highest weighted performance	1236.1 2024-07-01	1226.3 2024-07-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0.3	0	0
New rating	1244.3	1221.7	1239.8	1200
Analysis
Rating	1244.3	1221.4	1239.8	1200
Raw rating	1244.3	1220.1	1239.8	1200
Weighted rating	1228.6	1221.4	1211.9
Weighted performance	1068.6	0	0
K-factor	36	36	36	36
Floor	744.3	734.7	739.8	700
Max/Min rating change allowed	155.7	161.1	156.7	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	1244.3	1220.1	1239.8	1200
New weighted rating	1230.5	1221.7	1214.6	1200
New weighted performance	1061.8	0	0	0
Temp new rating	1244.3	1221.7	1239.8	1200
Temp new rating +/-	0	0.3	0	0
Final new rating +/-	0	0.3	0	0
New rating	1244.3	1221.7	1239.8	1200
New K-factor	36	36	36	36
New floor	744.3	734.7	739.8	700

Item	Main	Standard	Rapid
	0	0	0
	15	10	5
	10	10	0
	0	0	0
	4	4	0
	0	0	0
History	29	24	5

Games since
	Main 25	Standard 20		Rapid 5		Blitz 0
Gender	Male
Age group	U12
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	15	6.5	43.33	-56.7	1208.7	1152
Standard	10	3	30	-170	1208.3	1038.3
Rapid	5	3.5	70	170	1209.5	1379.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	29	15.5	53.45	29.3	1174.2	1203.5
Standard	24	12	50	0	1166.8	1166.8
Rapid	5	3.5	70	170	1209.5	1379.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1244.3	1220.1	1239.8	1200
2025-09-30	1244.3	1220.1	1239.8	1200
2025-09-01	1244.3	1220.1	1239.8	1200
2025-08-01	1244.3	1220.1	1239.8	1200
2025-07-01	1219.5	1219.5	1200	1200
2025-06-01	1218.9	1218.8	1200	1200
2025-05-01	1218	1217.8	1200	1200
2025-04-01	1213.6	1212.4	1200	1200
2025-03-01	1235.1	1234.7	1200	1200
2025-02-01	1235.1	1234.7	1200	1200
2025-01-01	1233.2	1234.4	1200	1200
2024-12-01	1233.2	1234.4	1200	1200
2024-11-01	1233.2	1234.4	1200	1200
2024-10-01	1233.2	1234.4	1200	1200
2024-09-01	1233.2	1234.4	1200	1200
2024-08-01	1233.2	1234.4	1200	1200
2024-07-01	1197.7	1196.8	1200	1200
2024-09-01	1197.7	1196.8	1200	1200
2024-05-01	1197.7	1196.8	1200	1200
2024-04-01	1197.7	1196.8	1200	1200
2024-03-01	1197.7	1196.8	1200	1200
2024-02-01	1197.7	1196.8	1200	1200
2024-01-01	1197.7	1196.8	1200	1200
2023-12-01	1197.7	1196.8	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	Bojanala's Clash Of Schools -Primary Schools 2025 (U11)	2025-07-26	2025-07-26	Rapid	Bojanala Platina (NBR)	5	5	3.5	Yes	Analysis
2	Bojanala Circuit Championships 1 of 4 2025 (U12)	2025-03-01	2025-03-01	Standard	Bojanala Platina (NBR)	5	5	0	Yes	Analysis
3	Bojanala Wildcard 2025 (Center Pawns)	2025-01-25	2025-01-25	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Bojanala's Clash Of Schools -Primary Schools 2025 (U11)	2025-07-26	2025-07-26	Rapid	Bojanala Platina (NBR)	5	5	3.5	Yes	Analysis
2	Bojanala Circuit Championships 1 of 4 2025 (U12)	2025-03-01	2025-03-01	Standard	Bojanala Platina (NBR)	5	5	0	Yes	Analysis
3	Bojanala Wildcard 2025 (Center Pawns)	2025-01-25	2025-01-25	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
4	Bojanala's Clash Of Schools 2024 (U9)	2024-07-20	2024-07-20	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
5	Hamakom's Pioneers Of The Board 2024 (Center Pawns)	2024-07-13	2024-07-13	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
6	Bojanala Chess Federation Clash of Schools 2022 (PS Development Juniors)	2022-07-23	2022-07-23	Standard	Bojanala Platina (NBR)	4	4	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 1	type Rapid	result 0.5	date 2025-07-26	rnd 4	type Rapid	result 1
		Opponent Wilcocks, L (Logan)				Opponent Triumph, J (Jude)
2	4	Tournament Bojanala's Clash Of Schools 2024				Tournament Bojanala's Clash Of Schools 2024
		date 2024-07-20	rnd 1	type Standard	result 1	date 2024-07-20	rnd 4	type Standard	result 1
		Opponent Raikane, O (Ontshiametse)				Opponent Pelser, L (Leja)
3	3	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Hamakom's Pioneers Of The Board 2024
		date 2024-07-13	rnd 1	type Standard	result 1	date 2024-07-13	rnd 3	type Standard	result 1
		Opponent Vorster, S (Salmerie)				Opponent Ferreira, M (Maria)

#	Games	Start				End
1	4	Tournament Bojanala's Clash Of Schools 2024				Tournament Bojanala's Clash Of Schools 2024
		date 2024-07-20	rnd 1	type Standard	result 1	date 2024-07-20	rnd 4	type Standard	result 1
		Opponent Raikane, O (Ontshiametse)				Opponent Pelser, L (Leja)
2	3	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Hamakom's Pioneers Of The Board 2024
		date 2024-07-13	rnd 1	type Standard	result 1	date 2024-07-13	rnd 3	type Standard	result 1
		Opponent Vorster, S (Salmerie)				Opponent Ferreira, M (Maria)
3	2	Tournament Bojanala Wildcard 2025				Tournament Bojanala Wildcard 2025
		date 2025-01-25	rnd 4	type Standard	result 1	date 2025-01-25	rnd 5	type Standard	result 1
		Opponent Hattingh, J (James)				Opponent Kgokong, R (Remo)

#	Games	Start				End
1	4	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 1	type Rapid	result 0.5	date 2025-07-26	rnd 4	type Rapid	result 1
		Opponent Wilcocks, L (Logan)				Opponent Triumph, J (Jude)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Bojanala's Clash Of Schools 2024				Tournament Bojanala's Clash Of Schools 2024
		date 2024-07-20	rnd 1	type Standard	result 1	date 2024-07-20	rnd 4	type Standard	result 1
		Opponent Raikane, O (Ontshiametse)				Opponent Pelser, L (Leja)
2	3	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 4	type Rapid	result 1
		Opponent Mokoto, K (Kaboentle)				Opponent Triumph, J (Jude)
3	3	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Hamakom's Pioneers Of The Board 2024
		date 2024-07-13	rnd 1	type Standard	result 1	date 2024-07-13	rnd 3	type Standard	result 1
		Opponent Vorster, S (Salmerie)				Opponent Ferreira, M (Maria)

#	Games	Start				End
1	4	Tournament Bojanala's Clash Of Schools 2024				Tournament Bojanala's Clash Of Schools 2024
		date 2024-07-20	rnd 1	type Standard	result 1	date 2024-07-20	rnd 4	type Standard	result 1
		Opponent Raikane, O (Ontshiametse)				Opponent Pelser, L (Leja)
2	3	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Hamakom's Pioneers Of The Board 2024
		date 2024-07-13	rnd 1	type Standard	result 1	date 2024-07-13	rnd 3	type Standard	result 1
		Opponent Vorster, S (Salmerie)				Opponent Ferreira, M (Maria)
3	2	Tournament Bojanala Wildcard 2025				Tournament Bojanala Wildcard 2025
		date 2025-01-25	rnd 4	type Standard	result 1	date 2025-01-25	rnd 5	type Standard	result 1
		Opponent Hattingh, J (James)				Opponent Kgokong, R (Remo)

#	Games	Start				End
1	3	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 4	type Rapid	result 1
		Opponent Mokoto, K (Kaboentle)				Opponent Triumph, J (Jude)

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	Hattingh ,J (James)	2	1	0	2	1	0	0	0	0	0	0	0
1	Hattingh ,J (James)	2	1174.1	1174.1	2	1190.7	1174.1	0	0	0	0	0	0
2	Ferreira ,M (Maria)	2	2	425	2	2	425	0	0	0	0	0	0
2	Ferreira ,M (Maria)	2	1194.3	1619.3	2	1172.2	1619.3	0	0	0	0	0	0
3	Coetzee ,W (Willie)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Coetzee ,W (Willie)	2	1127.3	702.3	2	1123.5	702.3	0	0	0	0	0	0
4	Raikane ,O (Ontshiametse)	2	2	425	2	2	425	0	0	0	0	0	0
4	Raikane ,O (Ontshiametse)	2	970.2	1395.2	2	948.4	1395.2	0	0	0	0	0	0
5	Van Aswegen ,E (Eben)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Van Aswegen ,E (Eben)	1	1221.6	796.6	1	1222.6	796.6	0	0	0	0	0	0
6	Esterhuizen ,E (Ewald)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Esterhuizen ,E (Ewald)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Kgokong ,R (Remoabetswe)	1	1	425	1	1	425	0	0	0	0	0	0
7	Kgokong ,R (Remoabetswe)	1	1131.6	1556.6	1	1113.6	1556.6	0	0	0	0	0	0
8	Maboane ,K (Kethopilwe)	1	1	425	1	1	425	0	0	0	0	0	0
8	Maboane ,K (Kethopilwe)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Van Der Merwe ,J (Jean)	1	1	425	1	1	425	0	0	0	0	0	0
9	Van Der Merwe ,J (Jean)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Vorster ,S (Salmerie)	1	1	425	1	1	425	0	0	0	0	0	0
10	Vorster ,S (Salmerie)	1	1064.4	1489.4	1	1038.4	1489.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Jansen, D (Dihann)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms