Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kolbe, L (Luke)

Chess SA id

1170302194

FIDE id

Date of birth

2017-10-03 (U10)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-25

Personal details last changed

2025-05-03

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1225.8	1256.7	1150.7	1200
Raw rating	1225.8	1256.7	1150.7	1200
Weighted rating	1184.7	1212.3	1143.5	1200
Weighted performance	1129.7	1043.1	0	0
Floor	725.8	756.7	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	159.8	152.9	177.9	165.8
Highest rating	1225.8 2025-11-30	1302 2024-10-01	1200 2024-04-01	1200 2024-05-01
Highest raw rating	1225.8 2025-11-30	1256.7 2025-11-30	1200 2024-04-01	1200 2024-05-01
Highest weighted rating	1200 2024-04-01	1222 2024-05-01	1200 2024-04-01	1200 2024-05-01
Highest weighted performance	1200 2024-12-01	1302 2024-10-01	1200 2024-12-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-29.6	-42.8	0	0
New rating	1196.3	1213.9	1150.7	1200
Analysis
Rating	1225.8	1256.7	1150.7	1200
Raw rating	1225.8	1256.7	1150.7	1200
Weighted rating	1184.7	1212.3	1143.5
Weighted performance	1129.7	1043.1	0
K-factor	36	36	36	36
Floor	725.8	756.7	700	700
Max/Min rating change allowed	159.8	152.9	177.9	165.8
Games	5	5	0	0
Score	1	1	0	0
Expected score	1.82	2.19	0	0
Score-Expected	-0.82	-1.19	0	0
Temp raw +/-	-29.6	-42.8	0	0
Final raw +/-	-29.6	-42.8	0	0
New raw rating	1196.3	1213.9	1150.7	1200
New weighted rating	1186	1212.9	1144.2	1200
New weighted performance	1124.7	1060.8	0	0
Temp new rating	1196.3	1213.9	1150.7	1200
Temp new rating +/-	-29.6	-42.8	0	0
Final new rating +/-	-29.6	-42.8	0	0
New rating	1196.3	1213.9	1150.7	1200
New K-factor	36	36	36	36
New floor	725.8	756.7	700	700

Item	Main	Standard	Rapid
	0	0	0
	33	22	11
	15	9	6
	0	0	0
	0	0	0
	0	0	0
History	48	31	17

Games since
	Main 48	Standard 31		Rapid 17		Blitz 0
Gender	Male
Age group	U10
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3939		1313		518
Male	2973		939		400
U10	362		119		35
U10 Male	276		86		28
Standard
	RSA		Province		Region
Overall	3579		1019		427
Male	2747		722		322
U10	310		89		26
U10 Male	245		63		20
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	33	13	39.39	-90.2	1240.2	1150
Standard	22	8.5	38.64	-96.6	1227.7	1131.1
Rapid	11	4.5	40.91	-77.3	1265	1187.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	48	18	37.5	-106.2	1219.3	1113
Standard	31	12.5	40.32	-82.3	1212	1129.8
Rapid	17	5.5	32.35	-150	1232.5	1082.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1225.8	1256.7	1150.7	1200
2025-11-30	1225.8	1256.7	1150.7	1200
2025-11-01	1185.8	1215.7	1150.7	1200
2025-09-30	1201.9	1215.7	1173	1200
2025-09-01	1201.3	1216.4	1173	1200
2025-08-01	1187.2	1199.9	1173	1200
2025-07-01	1168.4	1195.4	1142	1200
2025-06-01	1174	1200.7	1142	1200
2025-05-01	1174	1200.7	1142	1200
2025-04-01	1174	1200.5	1142	1200
2025-03-01	1172.2	1197.3	1142	1200
2025-02-01	1173.3	1198.8	1141.2	1200
2025-01-01	1140.3	1173	1109.6	1200
2024-12-01	1179.1	1222	1109.6	1200
2024-11-01	1179.1	1222	1109.6	1200
2024-10-01	1158.8	1200	1109.6	1200
2024-09-01	1158.8	1200	1109.6	1200
2024-11-01	1158.8	1200	1109.6	1200
2024-07-01	1158.8	1200	1109.6	1200
2024-06-01	1158.8	1200	1109.6	1200
2024-05-01	1158.8	1200	1109.6	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

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (U9 Boys)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (U9 Boys)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (U9 Boys)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis
2	Gordons Bay Primary Chess Championship 2025 (U9)	2025-10-25	2025-10-25	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis
3	Royal Rapid Challenge 2025 (Junior)	2025-10-04	2025-10-04	Rapid	Cape Town (WCT)	7	6	2	Yes	Analysis
4	Western Cape Schools - Top Schools 2025 (U9)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	2	1	Yes	Analysis
5	CT Metro District East Top Schools Chess 2025 (U9)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	1	1	Yes	Analysis
6	Gordons Bay Library Chess Tournament 2025 (U9)	2025-07-26	2025-07-26	Rapid	Cape Town (WCT)	5	5	2.5	Yes	Analysis
7	Helderberg Chess Club Open 2025 (U9)	2025-06-07	2025-06-07	Standard	Cape Town (WCT)	5	5	0.5	Yes	Analysis
8	Cape Town Chess Junior League 2025 (U8+U10 Development)	2025-05-23	2025-05-31	Rapid	Cape Town (WCT)	7	0	0	No	Analysis
9	CT Metro District East Schools Chess Individuals Trials 2025 (U9 Boys)	2025-02-01	2025-02-01	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis
10	Helderberg Chess Club PS Development Tournament 2025 (U9)	2025-01-25	2025-01-25	Standard	Cape Town (WCT)	5	4	1.5	Yes	Analysis
11	Gordons Bay Primary Chess Championship 2024 (U7)	2024-11-09	2024-11-09	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis
12	Grant East Annual Primary School Invitational Chess Tournament 2024 (U7)	2024-10-05	2024-10-05	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
13	Hermanus Chess Club Open 2024 (Development)	2024-04-20	2024-04-20	Rapid	Overberg (WOS)	7	6	1	Yes	Analysis

#	Games	Start				End
1	2	Tournament Royal Rapid Challenge 2025				Tournament Royal Rapid Challenge 2025
		date 2025-10-04	rnd 6	type Rapid	result 1	date 2025-10-04	rnd 7	type Rapid	result 1
		Opponent Varadharajan, T (Theeran)				Opponent Siegfried, J (Joseph)
2	2	Tournament Gordons Bay Library Chess Tournament 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-07-26	rnd 5	type Rapid	result 0.5	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Sauls, J (Jake)				Opponent Viti, A (Azingce)
3	2	Tournament Gordons Bay Library Chess Tournament 2025				Tournament Gordons Bay Library Chess Tournament 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent Erasmus, H (Hannah)				Opponent De Villiers, L (Lienki)

#	Games	Start				End
1	2	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-10-05	rnd 1	type Standard	result 1	date 2024-10-05	rnd 2	type Standard	result 1
		Opponent Van Zyl, J (Jurgens)				Opponent Ferreira, D (Dolf)
2	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Cloete, F (Fletcher)				Opponent Cloete, F (Fletcher)
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 Viti, A (Azingce)				Opponent Viti, A (Azingce)

#	Games	Start				End
1	2	Tournament Gordons Bay Library Chess Tournament 2025				Tournament Gordons Bay Library Chess Tournament 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent Erasmus, H (Hannah)				Opponent De Villiers, L (Lienki)
2	1	Tournament Gordons Bay Library Chess Tournament 2025				Tournament Gordons Bay Library Chess Tournament 2025
		date 2025-07-26	rnd 5	type Rapid	result 0.5	date 2025-07-26	rnd 5	type Rapid	result 0.5
		Opponent Sauls, J (Jake)				Opponent Sauls, J (Jake)
3	1	Tournament Hermanus Chess Club Open 2024				Tournament Hermanus Chess Club Open 2024
		date 2024-04-20	rnd 6	type Rapid	result 1	date 2024-04-20	rnd 6	type Rapid	result 1
		Opponent Beukes, C (Cullen)				Opponent Beukes, C (Cullen)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Gordons Bay Library Chess Tournament 2025				Tournament Gordons Bay Library Chess Tournament 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent Erasmus, H (Hannah)				Opponent De Villiers, L (Lienki)
2	2	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-10-05	rnd 1	type Standard	result 1	date 2024-10-05	rnd 2	type Standard	result 1
		Opponent Van Zyl, J (Jurgens)				Opponent Ferreira, D (Dolf)
3	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Cloete, F (Fletcher)				Opponent Cloete, F (Fletcher)

#	Games	Start				End
1	2	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-10-05	rnd 1	type Standard	result 1	date 2024-10-05	rnd 2	type Standard	result 1
		Opponent Van Zyl, J (Jurgens)				Opponent Ferreira, D (Dolf)
2	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Cloete, F (Fletcher)				Opponent Cloete, F (Fletcher)
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 Viti, A (Azingce)				Opponent Viti, A (Azingce)

#	Games	Start				End
1	2	Tournament Gordons Bay Library Chess Tournament 2025				Tournament Gordons Bay Library Chess Tournament 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent Erasmus, H (Hannah)				Opponent De Villiers, L (Lienki)
2	1	Tournament Hermanus Chess Club Open 2024				Tournament Hermanus Chess Club Open 2024
		date 2024-04-20	rnd 6	type Rapid	result 1	date 2024-04-20	rnd 6	type Rapid	result 1
		Opponent Beukes, C (Cullen)				Opponent Beukes, C (Cullen)

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	Beukes ,C (Cullen)	6	1	-283.3	4	0	-425	2	1	0	0	0	0
1	Beukes ,C (Cullen)	6	1290.2	1006.9	4	1289.6	865.2	2	1248.2	1290.2	0	0	0
2	Sauls ,J (Jake)	3	2.5	283.3	2	2	425	1	0.5	0	0	0	0
2	Sauls ,J (Jake)	3	1189.6	1472.9	2	1185.1	1614.6	1	1198.5	1189.6	0	0	0
3	Onyire ,W (Winner)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
3	Onyire ,W (Winner)	2	1164.4	951.9	2	1187.7	951.9	0	0	0	0	0	0
4	Klopper ,E (Elbe)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Klopper ,E (Elbe)	2	1296.3	871.3	2	1322.8	871.3	0	0	0	0	0	0
5	Erasmus ,H (Hannah)	2	2	425	1	1	425	1	1	425	0	0	0
5	Erasmus ,H (Hannah)	2	1186.8	1611.8	1	1176.2	1611.8	1	1193.7	1611.8	0	0	0
6	Chidzvondo ,N (Nathaniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Chidzvondo ,N (Nathaniel)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Isaacs ,T (Trinity)	1	1	425	1	1	425	0	0	0	0	0	0
7	Isaacs ,T (Trinity)	1	1161.8	1586.8	1	1200	1586.8	0	0	0	0	0	0
8	Davids ,N (Noah)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Davids ,N (Noah)	1	1182.3	1182.3	1	1201.2	1182.3	0	0	0	0	0	0
9	Osterloh ,M (Max)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Osterloh ,M (Max)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Van Zyl ,J (Jurgens)	1	1	425	1	1	425	0	0	0	0	0	0
10	Van Zyl ,J (Jurgens)	1	1172.4	1597.4	1	1200	1597.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Kolbe, L (Luke)

Ratings

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Last 24 raw ratings

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Top 3 Streaks

Top 10 opponents most often played

Norms