Chess South Africa Ratings Database

PLAYER PAGE

Personal

Mertz, K (Kian)

Chess SA id

1120193380

FIDE id

Date of birth

2012-11-30 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1276.4

Item	Main	Standard	Rapid	Blitz
Rating	1219.6	1220.8	1198	1200
Raw rating	1219.6	1220.8	1198	1200
Weighted rating	1174.3	1166.8	1197.4	1200
Weighted performance	1152.6	1127.8	0	0
Floor	719.6	720.8	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	161.2	161	166.3	165.8
Highest rating	1219.6 2025-09-01	1220.8 2025-09-01	1258 2024-04-01	1200 2024-02-01
Highest raw rating	1219.6 2025-09-01	1220.8 2025-09-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1258 2024-04-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1219.6	1220.8	1198	1200
Analysis
Rating	1219.6	1220.8	1198	1200
Raw rating	1219.6	1220.8	1198	1200
Weighted rating	1174.3	1166.8	1197.4
Weighted performance	1152.6	1127.8	0
K-factor	36	36	36	36
Floor	719.6	720.8	700	700
Max/Min rating change allowed	161.2	161	166.3	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	1219.6	1220.8	1198	1200
New weighted rating	1177.9	1171	1197.5	1200
New weighted performance	1152.2	1127.4	0	0
Temp new rating	1219.6	1220.8	1198	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1219.6	1220.8	1198	1200
New K-factor	36	36	36	36
New floor	719.6	720.8	700	700

Item	Main	Standard	Rapid
	0	0	0
	18	18	0
	21	9	12
	0	0	0
	0	0	0
	0	0	0
History	39	27	12

Games since
	Main 39	Standard 27		Rapid 12		Blitz 0
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
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	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
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	18	9.5	52.78	23.6	1238.1	1261.7
Standard	18	9.5	52.78	23.6	1238.1	1261.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	39	17	43.59	-54.5	1233.6	1179.1
Standard	27	12	44.44	-47.2	1226.9	1179.7
Rapid	12	5	41.67	-70.8	1248.7	1177.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1219.6	1220.8	1198	1200
2025-09-01	1219.6	1220.8	1198	1200
2025-08-01	1167.4	1158.7	1198	1200
2025-07-01	1167.4	1158.7	1198	1200
2025-06-01	1181.4	1172.8	1198	1200
2025-05-01	1181.4	1172.8	1198	1200
2025-04-01	1181.4	1172.8	1198	1200
2025-03-01	1181.4	1172.8	1198	1200
2025-02-01	1164.9	1157.3	1198	1200
2025-01-01	1139.9	1124.8	1198	1200
2024-12-01	1139.9	1124.8	1198	1200
2024-11-01	1139.9	1124.8	1198	1200
2024-10-01	1139.9	1124.8	1198	1200
2024-09-01	1139.9	1124.8	1198	1200
2024-08-01	1139.9	1124.8	1198	1200
2024-07-01	1181.7	1176.4	1198	1200
2024-06-01	1181.7	1176.4	1198	1200
2024-08-01	1161.4	1176.4	1166.8	1200
2024-04-01	1181.1	1176.4	1200	1200
2024-03-01	1181.1	1176.4	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	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	CT Metro District East Top Schools Chess 2025 (U13)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	7	6	4.5	Yes	Analysis
2	Cape Town Chess Junior League 2025 (U14)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
3	CT Metro District East Schools Chess Individuals Trials 2025 (U13 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	CT Metro District East Top Schools Chess 2025 (U13)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	7	6	4.5	Yes	Analysis
2	Cape Town Chess Junior League 2025 (U14)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
3	CT Metro District East Schools Chess Individuals Trials 2025 (U13 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
4	CT Metro District East Top Schools Chess 2024 (U13 Mixed)	2024-07-27	2024-07-28	Standard	Cape Town (WCT)	5	4	0.5	Yes	Analysis
5	Cape Town Junior League Finals 2024 (U13 Open B)	2024-05-18	2024-05-18	Rapid	Cape Town (WCT)	6	1	0	Yes	Analysis
6	Cape Town Junior League - Qualifier 2 2024 (U13)	2024-04-20	2024-04-20	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
7	Cape Town Junior League Qualifier 2024 (U13 Open)	2024-04-06	2024-04-06	Rapid	Cape Town (WCT)	6	5	1	Yes	Analysis
8	CT District East Schools Chess Individuals Trails 2024 (U13 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-03	rnd 7	type Standard	result 1
		Opponent Bvute, M (Mickydonald)				Opponent Webb, P (Paul)
2	4	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 2	type Rapid	result 1	date 2024-04-20	rnd 5	type Rapid	result 1
		Opponent Janse Van Rensburg, L (Loaquin)				Opponent Strauss, J (Juan)
3	1	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-08-02	rnd 1	type Standard	result 1
		Opponent Nyakatya, P (Pule)				Opponent Nyakatya, P (Pule)

#	Games	Start				End
1	4	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-03	rnd 7	type Standard	result 1
		Opponent Bvute, M (Mickydonald)				Opponent Webb, P (Paul)
2	1	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-08-02	rnd 1	type Standard	result 1
		Opponent Nyakatya, P (Pule)				Opponent Nyakatya, P (Pule)
3	1	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-31	rnd 5	type Standard	result 1	date 2025-05-31	rnd 5	type Standard	result 1
		Opponent Gabhile, E (Elihle)				Opponent Gabhile, E (Elihle)

#	Games	Start				End
1	4	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 2	type Rapid	result 1	date 2024-04-20	rnd 5	type Rapid	result 1
		Opponent Janse Van Rensburg, L (Loaquin)				Opponent Strauss, J (Juan)
2	1	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-04-06	rnd 4	type Rapid	result 1	date 2024-04-06	rnd 4	type Rapid	result 1
		Opponent Mynhardt, W (Wihan)				Opponent Mynhardt, W (Wihan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 2	type Rapid	result 1	date 2024-04-20	rnd 5	type Rapid	result 1
		Opponent Janse Van Rensburg, L (Loaquin)				Opponent Strauss, J (Juan)
2	2	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-03	rnd 6	type Standard	result 1	date 2025-08-03	rnd 7	type Standard	result 1
		Opponent Gevenga, I (Inonge)				Opponent Webb, P (Paul)
3	1	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Bvute, M (Mickydonald)				Opponent Bvute, M (Mickydonald)

#	Games	Start				End
1	2	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-03	rnd 6	type Standard	result 1	date 2025-08-03	rnd 7	type Standard	result 1
		Opponent Gevenga, I (Inonge)				Opponent Webb, P (Paul)
2	1	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Bvute, M (Mickydonald)				Opponent Bvute, M (Mickydonald)
3	1	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-08-02	rnd 1	type Standard	result 1
		Opponent Nyakatya, P (Pule)				Opponent Nyakatya, P (Pule)

#	Games	Start				End
1	4	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 2	type Rapid	result 1	date 2024-04-20	rnd 5	type Rapid	result 1
		Opponent Janse Van Rensburg, L (Loaquin)				Opponent Strauss, J (Juan)
2	1	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-04-06	rnd 4	type Rapid	result 1	date 2024-04-06	rnd 4	type Rapid	result 1
		Opponent Mynhardt, W (Wihan)				Opponent Mynhardt, W (Wihan)

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	Nyakatya ,P (Pule)	2	1	0	2	1	0	0	0	0	0	0	0
1	Nyakatya ,P (Pule)	2	1191.9	1191.9	2	1187.8	1191.9	0	0	0	0	0	0
2	Wiggins ,M (Mikhail)	2	1	0	0	0	0	2	1	0	0	0	0
2	Wiggins ,M (Mikhail)	2	1221.4	1221.4	0	0	0	2	1244.9	1221.4	0	0	0
3	Hendricks ,M (Mikhail)	1	1	425	1	1	425	0	0	0	0	0	0
3	Hendricks ,M (Mikhail)	1	1199.6	1624.6	1	1210.3	1624.6	0	0	0	0	0	0
4	Sibidla ,O (Onesisa)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Sibidla ,O (Onesisa)	1	1230.1	805.1	1	1265.8	805.1	0	0	0	0	0	0
5	Coetzee ,M (Mpumelelo)	1	1	425	1	1	425	0	0	0	0	0	0
5	Coetzee ,M (Mpumelelo)	1	1123.5	1548.5	1	1141.6	1548.5	0	0	0	0	0	0
6	Smith ,T (Tyler)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Smith ,T (Tyler)	1	1273.1	848.1	1	1264.3	848.1	0	0	0	0	0	0
7	Tyhalibhongo ,G (Gift)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Tyhalibhongo ,G (Gift)	1	1252.7	827.7	1	1194.8	827.7	0	0	0	0	0	0
8	Krengo ,I (Linamandla)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Krengo ,I (Linamandla)	1	1272.8	847.8	1	1180.4	847.8	0	0	0	0	0	0
9	Okonji ,J (Joshua)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Okonji ,J (Joshua)	1	1273.7	848.7	1	1253.3	848.7	0	0	0	0	0	0
10	Webb ,P (Paul)	1	1	425	1	1	425	0	0	0	0	0	0
10	Webb ,P (Paul)	1	1235.3	1660.3	1	1198	1660.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Mertz, K (Kian)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms