Chess South Africa Ratings Database

PLAYER PAGE

Personal

Calvert, C (Caylim)

Chess SA id

1130156893

FIDE id

Date of birth

2013-08-03 (U14)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-20

Personal details last changed

1900-01-01

Junior GPX Games

19.9

Junior GPX Points

1045.7

Item	Main	Standard	Rapid	Blitz
Rating	1220.2	1236	1227.3	1200
Raw rating	1219.1	1234	1227.3	1200
Weighted rating	1220.2	1236	1214.9	1200
Weighted performance	1126.4	0	1203.2	0
Floor	764	760.2	736	700
K-factor	36	36	36	36
Min/Max rating change allowed	161.4	158	159.5	165.8
Highest rating	1276.3 2024-11-01	1445.1 2024-07-01	1236 2024-11-01	1200 2018-10-01
Highest raw rating	1264 2025-03-01	1260.2 2025-03-01	1236 2024-11-01	1200 2024-02-01
Highest weighted rating	1219 2025-09-30	1260.2 2025-03-01	1236 2018-10-01	1200 2018-10-01
Highest weighted performance	1276.3 2024-11-01	1445.1 2024-07-01	1223.6 2024-11-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.9	0.4	0	0
New rating	1221.1	1236.4	1227.3	1200
Analysis
Rating	1220.2	1236	1227.3	1200
Raw rating	1219.1	1234	1227.3	1200
Weighted rating	1220.2	1236	1214.9
Weighted performance	1126.4	0	1203.2
K-factor	36	36	36	36
Floor	764	760.2	736	700
Max/Min rating change allowed	161.4	158	159.5	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	1219.1	1234	1227.3	1200
New weighted rating	1221.1	1236.4	1217.5	1200
New weighted performance	1119.6	0	1195.9	0
Temp new rating	1221.1	1236.4	1227.3	1200
Temp new rating +/-	0.9	0.4	0	0
Final new rating +/-	0.9	0.4	0	0
New rating	1221.1	1236.4	1227.3	1200
New K-factor	36	36	36	36
New floor	764	760.2	736	700

Item	Main	Standard	Rapid
	0	0	0
	24	10	14
	34	11	23
	11	0	11
	0	0	0
	0	0	0
History	69	21	48

Games since
	Main 58	Standard 21		Rapid 37		Blitz 0
Gender	Male
Age group	U14
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3982		1333		188
Male	2999		949		129
U14	770		259		43
U14 Male	536		165		25
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1500		737		126
Male	1170		564		90
U14	334		172		39
U14 Male	232		120		26
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	24	11	45.83	-35.4	1213.8	1178.4
Standard	10	4	40	-85	1198.3	1113.3
Rapid	14	7	50	0	1224.8	1224.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	69	34	49.28	-6.2	1221.1	1215
Standard	21	11	52.38	20.2	1231.4	1251.6
Rapid	48	23	47.92	-17.7	1216.7	1198.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1219.1	1234	1227.3	1200
2025-09-30	1219.1	1234	1227.3	1200
2025-09-01	1199.8	1234	1196.4	1200
2025-08-01	1217.7	1234	1236	1200
2025-07-01	1216.2	1233.1	1236	1200
2025-06-01	1214.7	1232.2	1236	1200
2025-05-01	1213.2	1231.1	1236	1200
2025-04-01	1212.1	1228	1236	1200
2025-03-01	1264	1260.2	1236	1200
2025-02-01	1262	1254.7	1236	1200
2025-01-01	1262	1254.7	1236	1200
2024-12-01	1262	1254.7	1236	1200
2024-11-01	1262	1254.7	1236	1200
2024-10-01	1243.6	1254.7	1190.3	1200
2024-09-01	1224.2	1248.2	1190.3	1200
2024-08-01	1212.3	1248.2	1152.9	1200
2024-07-01	1163.3	1200	1152.9	1200
2024-09-01	1163.3	1200	1152.9	1200
2024-05-01	1153.9	1200	1133.8	1200
2024-04-01	1153.9	1200	1133.8	1200
2024-03-01	1153.9	1200	1133.8	1200
2024-02-01	1162	1200	1141	1200
2024-01-01	1162	1200	1141	1200
2023-12-01	1162	1200	1141	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	Rhenish Primary 2025 (U14+Over)	2025-09-20	2025-09-20	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
2	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	2	Yes	Analysis
3	Stellenbosch Primary 2025 (U13)	2025-08-16	2025-08-16	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
4	Cape Winelands Schools Prestige 2025 (U13 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	1	Yes	Analysis
5	Cape Winelands Schools - Trials 1 2025 (U13 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Rhenish Primary 2025 (U14+Over)	2025-09-20	2025-09-20	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
2	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	2	Yes	Analysis
3	Stellenbosch Primary 2025 (U13)	2025-08-16	2025-08-16	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
4	Cape Winelands Schools Prestige 2025 (U13 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	1	Yes	Analysis
5	Cape Winelands Schools - Trials 1 2025 (U13 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
6	Worcester Knock-Out 2024 (U11 Boys)	2024-10-19	2024-10-19	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
7	Western Cape Top Schools Championship 2024 (U11 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	3	Yes	Analysis
8	Stellenbosch Primary 2024 (U11)	2024-08-17	2024-08-17	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
9	Cape Winelands - Top Schools 2024 (U7-U11 Mixed)	2024-07-24	2024-07-24	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
10	Rhenish PS Tournament 2024 (U12)	2024-05-11	2024-05-11	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
11	Cape Winelands Schools - PS Trials 1 2024 (U11 Boys)	2024-02-10	2024-02-10	Rapid	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
12	Stellenbosch Primary Chess Tournament 2023 (U12)	2023-08-19	2023-08-19	Rapid	Cape Winelands (WCW)	6	5	1.5	Yes	Analysis
13	Rhenish Primary Tournament 2023 (U12)	2023-05-13	2023-05-13	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament Cape Winelands Top Schools 2025				Tournament Rhenish Primary 2025
		date 2025-08-23	rnd 5	type Rapid	result 1	date 2025-09-20	rnd 3	type Rapid	result 1
		Opponent Joseph, J (Jamie)				Opponent Bennie, T (Thomas)
2	4	Tournament Cape Winelands - Top Schools 2024				Tournament Cape Winelands - Top Schools 2024
		date 2024-07-24	rnd 1	type Standard	result 1	date 2024-07-24	rnd 4	type Standard	result 1
		Opponent De Kock, J (Joshua)				Opponent Nel, L (Lukas)
3	3	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Bergstedt, G (Grayson)				Opponent Abrahams, F (Frielano)

#	Games	Start				End
1	4	Tournament Cape Winelands - Top Schools 2024				Tournament Cape Winelands - Top Schools 2024
		date 2024-07-24	rnd 1	type Standard	result 1	date 2024-07-24	rnd 4	type Standard	result 1
		Opponent De Kock, J (Joshua)				Opponent Nel, L (Lukas)
2	3	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Bergstedt, G (Grayson)				Opponent Abrahams, F (Frielano)
3	3	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-08-30	rnd 2	type Standard	result 1	date 2024-08-30	rnd 4	type Standard	result 1
		Opponent Pienaar, T (Talitha)				Opponent Azar, C (Christopher)

#	Games	Start				End
1	4	Tournament Cape Winelands Top Schools 2025				Tournament Rhenish Primary 2025
		date 2025-08-23	rnd 5	type Rapid	result 1	date 2025-09-20	rnd 3	type Rapid	result 1
		Opponent Joseph, J (Jamie)				Opponent Bennie, T (Thomas)
2	3	Tournament Worcester Knock-Out 2024				Tournament Stellenbosch Primary 2025
		date 2024-10-19	rnd 5	type Rapid	result 1	date 2025-08-16	rnd 1	type Rapid	result 1
		Opponent Mtshazo, L (Luyanda)				Opponent Ferreira, A (Alex)
3	3	Tournament Rhenish PS Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-05-11	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Rhode, A (Ashlin)				Opponent Visagie, J (Jan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Cape Winelands Top Schools 2025				Tournament Rhenish Primary 2025
		date 2025-08-23	rnd 5	type Rapid	result 1	date 2025-09-20	rnd 3	type Rapid	result 1
		Opponent Joseph, J (Jamie)				Opponent Bennie, T (Thomas)
2	4	Tournament Cape Winelands - Top Schools 2024				Tournament Cape Winelands - Top Schools 2024
		date 2024-07-24	rnd 1	type Standard	result 1	date 2024-07-24	rnd 4	type Standard	result 1
		Opponent De Kock, J (Joshua)				Opponent Nel, L (Lukas)
3	3	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Bergstedt, G (Grayson)				Opponent Abrahams, F (Frielano)

#	Games	Start				End
1	4	Tournament Cape Winelands - Top Schools 2024				Tournament Cape Winelands - Top Schools 2024
		date 2024-07-24	rnd 1	type Standard	result 1	date 2024-07-24	rnd 4	type Standard	result 1
		Opponent De Kock, J (Joshua)				Opponent Nel, L (Lukas)
2	3	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Bergstedt, G (Grayson)				Opponent Abrahams, F (Frielano)
3	3	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-08-30	rnd 2	type Standard	result 1	date 2024-08-30	rnd 4	type Standard	result 1
		Opponent Pienaar, T (Talitha)				Opponent Azar, C (Christopher)

#	Games	Start				End
1	4	Tournament Cape Winelands Top Schools 2025				Tournament Rhenish Primary 2025
		date 2025-08-23	rnd 5	type Rapid	result 1	date 2025-09-20	rnd 3	type Rapid	result 1
		Opponent Joseph, J (Jamie)				Opponent Bennie, T (Thomas)
2	3	Tournament Worcester Knock-Out 2024				Tournament Stellenbosch Primary 2025
		date 2024-10-19	rnd 5	type Rapid	result 1	date 2025-08-16	rnd 1	type Rapid	result 1
		Opponent Mtshazo, L (Luyanda)				Opponent Ferreira, A (Alex)
3	3	Tournament Rhenish PS Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-05-11	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Rhode, A (Ashlin)				Opponent Visagie, J (Jan)

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	Abrahams ,F (Frielano)	2	1	0	2	1	0	0	0	0	0	0	0
1	Abrahams ,F (Frielano)	2	1199.5	1199.5	2	1199.4	1199.5	0	0	0	0	0	0
2	Ramncwana ,T (Tanatsiwa)	2	0	-425	0	0	0	2	0	-425	0	0	0
2	Ramncwana ,T (Tanatsiwa)	2	1213.4	788.4	0	0	0	2	1222.6	788.4	0	0	0
3	De Bruyn ,K (Kayla)	2	1	0	0	0	0	2	1	0	0	0	0
3	De Bruyn ,K (Kayla)	2	1247	1247	0	0	0	2	1250.6	1247	0	0	0
4	Coetzer ,H (Hanro)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Coetzer ,H (Hanro)	1	1402.7	977.7	1	1344.2	977.7	0	0	0	0	0	0
5	Potgieter ,L (Lian)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Potgieter ,L (Lian)	1	1147	722	1	1138.4	722	0	0	0	0	0	0
6	Kroukamp ,Z (Zayde)	1	1	425	1	1	425	0	0	0	0	0	0
6	Kroukamp ,Z (Zayde)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	De Villiers ,M (Malan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	De Villiers ,M (Malan)	1	1227.3	802.3	1	1197.7	802.3	0	0	0	0	0	0
8	Mapholo ,L (Lelukho)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mapholo ,L (Lelukho)	1	1222	1647	1	1227.6	1647	0	0	0	0	0	0
9	Le Roux ,A (Alexander)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
9	Le Roux ,A (Alexander)	1	1032.1	1032.1	0	0	0	1	1125.6	1032.1	0	0	0
10	Pool ,A (Ava)	1	1	425	0	0	0	1	1	425	0	0	0
10	Pool ,A (Ava)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Calvert, C (Caylim)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms