Chess South Africa Ratings Database

PLAYER PAGE

Personal

Chen, D (David)

Chess SA id

1150313428

FIDE id

Date of birth

2015-04-14 (U12)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-11

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1235.4	1225	1209.6	1200
Raw rating	1235.4	1225	1209.6	1200
Weighted rating	1214.8	1216.3	1194	1200
Weighted performance	0	0	0	0
Floor	735.4	725	709.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	157.7	160	163.6	165.8
Highest rating	1235.4 2025-11-01	1225 2025-04-01	1209.6 2025-11-01	1200 2024-11-01
Highest raw rating	1235.4 2025-11-01	1225 2025-04-01	1209.6 2025-11-01	1200 2024-11-01
Highest weighted rating	1222.2 2024-11-01	1209.2 2025-08-01	1200 2024-11-01	1200 2024-11-01
Highest weighted performance	1200 2024-11-01	1200 2024-11-01	1200 2024-11-01	1200 2024-11-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1235.4	1225	1209.6	1200
Analysis
Rating	1235.4	1225	1209.6	1200
Raw rating	1235.4	1225	1209.6	1200
Weighted rating	1214.8	1216.3	1194
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	735.4	725	709.6	700
Max/Min rating change allowed	157.7	160	163.6	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	1235.4	1225	1209.6	1200
New weighted rating	1217	1217.4	1195.2	1200
New weighted performance	0	0	0	0
Temp new rating	1235.4	1225	1209.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1235.4	1225	1209.6	1200
New K-factor	36	36	36	36
New floor	735.4	725	709.6	700

Item	Main	Standard	Rapid
	0	0	0
	17	6	11
	5	0	5
	0	0	0
	0	0	0
	0	0	0
History	22	6	16

Games since
	Main 22	Standard 6		Rapid 16		Blitz 0
Gender	Male
Age group	U12
Region	Cape Town (WCT)
Province	Western Cape (WC)
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	17	7	41.18	-75	1320.9	1245.9
Standard	6	3	50	0	1325.8	1325.8
Rapid	11	4	36.36	-115.9	1318.3	1202.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	22	8	36.36	-115.9	1305.8	1189.9
Standard	6	3	50	0	1325.8	1325.8
Rapid	16	5	31.25	-159.4	1298.3	1138.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1235.4	1225	1209.6	1200
2025-11-30	1235.4	1225	1209.6	1200
2025-11-01	1235.4	1225	1209.6	1200
2025-09-30	1222.2	1225	1191.3	1200
2025-09-01	1222.2	1225	1191.3	1200
2025-08-01	1222.2	1225	1191.3	1200
2025-07-01	1222.2	1225	1191.3	1200
2025-06-01	1222.2	1225	1191.3	1200
2025-05-01	1222.2	1225	1191.3	1200
2025-04-01	1222.2	1225	1191.3	1200
2025-03-01	1194.9	1200	1191.3	1200
2025-02-01	1192.4	1200	1187.5	1200
2025-01-01	1172.4	1200	1152.8	1200
2024-12-01	1172.4	1200	1152.8	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	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	UCT Open Chess Championship 2025 (U10)	2025-10-11	2025-10-11	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
2	Cape Town Open Chess Festival 2025 (U10)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
3	2025 Kraaifontein Open Chess Championships (U12 Rapid)	2025-01-04	2025-01-04	Rapid	Cape Town (WCT)	6	5	1	Yes	Analysis
4	Chess Challengers Championship 2024 (U10)	2024-11-23	2024-11-23	Rapid	Cape Town (WCT)	6	5	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament Cape Town Open Chess Festival 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-03-23	rnd 4	type Standard	result 1
		Opponent Strydom, H (Hanru)				Opponent Ntobie, N (Naeems)
2	2	Tournament UCT Open Chess Championship 2025				Tournament UCT Open Chess Championship 2025
		date 2025-10-11	rnd 4	type Rapid	result 1	date 2025-10-11	rnd 5	type Rapid	result 1
		Opponent Weyers, F (Friedrich)				Opponent Stein, J (Jack)
3	1	Tournament UCT Open Chess Championship 2025				Tournament UCT Open Chess Championship 2025
		date 2025-10-11	rnd 2	type Rapid	result 1	date 2025-10-11	rnd 2	type Rapid	result 1
		Opponent Dhorat, A (Abdur Rahman)				Opponent Dhorat, A (Abdur Rahman)

#	Games	Start				End
1	3	Tournament Cape Town Open Chess Festival 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-03-23	rnd 4	type Standard	result 1
		Opponent Strydom, H (Hanru)				Opponent Ntobie, N (Naeems)

#	Games	Start				End
1	1	Tournament 2025 Kraaifontein Open Chess Championships				Tournament 2025 Kraaifontein Open Chess Championships
		date 2025-01-04	rnd 2	type Rapid	result 1	date 2025-01-04	rnd 2	type Rapid	result 1
		Opponent Small, W (Wyatt)				Opponent Small, W (Wyatt)
2	1	Tournament Chess Challengers Championship 2024				Tournament Chess Challengers Championship 2024
		date 2024-11-23	rnd 2	type Rapid	result 1	date 2024-11-23	rnd 2	type Rapid	result 1
		Opponent Gwadiso, T (Thapelo)				Opponent Gwadiso, T (Thapelo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Cape Town Open Chess Festival 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-03-23	rnd 4	type Standard	result 1
		Opponent Strydom, H (Hanru)				Opponent Ntobie, N (Naeems)
2	1	Tournament 2025 Kraaifontein Open Chess Championships				Tournament 2025 Kraaifontein Open Chess Championships
		date 2025-01-04	rnd 2	type Rapid	result 1	date 2025-01-04	rnd 2	type Rapid	result 1
		Opponent Small, W (Wyatt)				Opponent Small, W (Wyatt)
3	1	Tournament Chess Challengers Championship 2024				Tournament Chess Challengers Championship 2024
		date 2024-11-23	rnd 2	type Rapid	result 1	date 2024-11-23	rnd 2	type Rapid	result 1
		Opponent Gwadiso, T (Thapelo)				Opponent Gwadiso, T (Thapelo)

#	Games	Start				End
1	3	Tournament Cape Town Open Chess Festival 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-03-23	rnd 4	type Standard	result 1
		Opponent Strydom, H (Hanru)				Opponent Ntobie, N (Naeems)

#	Games	Start				End
1	1	Tournament 2025 Kraaifontein Open Chess Championships				Tournament 2025 Kraaifontein Open Chess Championships
		date 2025-01-04	rnd 2	type Rapid	result 1	date 2025-01-04	rnd 2	type Rapid	result 1
		Opponent Small, W (Wyatt)				Opponent Small, W (Wyatt)
2	1	Tournament Chess Challengers Championship 2024				Tournament Chess Challengers Championship 2024
		date 2024-11-23	rnd 2	type Rapid	result 1	date 2024-11-23	rnd 2	type Rapid	result 1
		Opponent Gwadiso, T (Thapelo)				Opponent Gwadiso, T (Thapelo)

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	Ramonyaluoe ,M (Madalitso)	2	0	-425	1	0	-425	1	0	-425	0	0	0
1	Ramonyaluoe ,M (Madalitso)	2	1402.2	977.2	1	1387.5	977.2	1	1373	977.2	0	0	0
2	Zhang ,M (Ming Xuan Jesse)	2	0	-425	0	0	0	2	0	-425	0	0	0
2	Zhang ,M (Ming Xuan Jesse)	2	1423.9	998.9	0	0	0	2	1409.2	998.9	0	0	0
3	Strydom ,H (Hanru)	1	1	425	1	1	425	0	0	0	0	0	0
3	Strydom ,H (Hanru)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Ntobie ,N (Naeems)	1	1	425	1	1	425	0	0	0	0	0	0
4	Ntobie ,N (Naeems)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Marais ,A (Alexander)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Marais ,A (Alexander)	1	1478.2	1053.2	1	1434.8	1053.2	0	0	0	0	0	0
6	Akemdien ,A (Alex)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Akemdien ,A (Alex)	1	1365	940	1	1341.4	940	0	0	0	0	0	0
7	Mzizana ,U (Ulungile)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mzizana ,U (Ulungile)	1	1294.8	1719.8	1	1233.4	1719.8	0	0	0	0	0	0
8	Smith ,S (Sophia)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Smith ,S (Sophia)	1	1402.5	977.5	0	0	0	1	1287.1	977.5	0	0	0
9	Small ,W (Wyatt)	1	1	425	0	0	0	1	1	425	0	0	0
9	Small ,W (Wyatt)	1	1273.5	1698.5	0	0	0	1	1285	1698.5	0	0	0
10	Stein ,J (Jack)	1	1	425	0	0	0	1	1	425	0	0	0
10	Stein ,J (Jack)	1	1293.1	1718.1	0	0	0	1	1297.4	1718.1	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Chen, D (David)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms