Chess South Africa Ratings Database

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Personal

Kiessling, K (Kai)

Chess SA id

1100116672

FIDE id

Date of birth

2010-05-19 (U16)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

27.7

Junior GPX Points

1307.8

Item	Main	Standard	Rapid	Blitz
Rating	1482.4	1466.2	1421.8	1205.7
Raw rating	1482.4	1466.2	1421.8	1205.7
Weighted rating	1428.4	1428.1	1351.1	1188.3
Weighted performance	1443.9	1431	1291.3	0
Floor	982.4	966.2	921.8	705.7
K-factor	32	32	32	36
Min/Max rating change allowed	110.9	113.5	120.9	164.5
Highest rating	1635.6 2019-07-01	1635.6 2019-07-01	1421.8 2025-05-05	1205.7 2025-05-05
Highest raw rating	1482.4 2025-09-30	1466.2 2025-09-30	1421.8 2025-05-05	1205.7 2025-05-05
Highest weighted rating	1428.4 2025-09-30	1446.5 2024-09-01	1334.6 2025-08-01	1205.7 2018-10-01
Highest weighted performance	1635.6 2025-05-05	1635.6 2019-07-01	1365.2 2024-02-01	1200 2020-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1482.4	1466.2	1421.8	1205.7
Analysis
Rating	1482.4	1466.2	1421.8	1205.7
Raw rating	1482.4	1466.2	1421.8	1205.7
Weighted rating	1428.4	1428.1	1351.1
Weighted performance	1443.9	1431	1291.3
K-factor	32	32	32	36
Floor	982.4	966.2	921.8	705.7
Max/Min rating change allowed	110.9	113.5	120.9	164.5
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	1482.4	1466.2	1421.8	1205.7
New weighted rating	1433.6	1431.3	1358.7	1190.2
New weighted performance	1443.3	1430.5	1290.8	0
Temp new rating	1482.4	1466.2	1421.8	1205.7
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1482.4	1466.2	1421.8	1205.7
New K-factor	32	32	32	36
New floor	982.4	966.2	921.8	705.7

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	43	21	13	9
	23	11	12	0
	36	15	21	0
	35	20	15	0
	28	13	10	5
History	194	104	76	14

Games since
	Main 66	Standard 32		Rapid 25		Blitz 9
Gender	Male
Age group	U16
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1398		422		19
Male	1193		350		15
U16	183		58		4
U16 Male	147		47		4
Standard
	RSA		Province		Region
Overall	1440		396		18
Male	1215		320		14
U16	202		63		5
U16 Male	161		50		4
Rapid
	RSA		Province		Region
Overall	426		211		16
Male	379		186		15
U16	71		36		3
U16 Male	58		30		3
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	43	28	65.12	128.5	1401.2	1529.7
Standard	21	13.5	64.29	121.4	1385.7	1507.1
Rapid	13	10.5	80.77	261.5	1313.2	1574.7
Blitz	9	4	44.44	-47.2	1564.8	1517.6
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	194	112.5	57.99	67.9	1313.6	1381.5
Standard	104	63	60.58	89.9	1300.3	1390.2
Rapid	76	43.5	57.24	61.5	1305.8	1367.4
Blitz	14	6	42.86	-60.7	1453.9	1393.2

Date	Main	Standard	Rapid	Blitz
2025-09-30	1482.4	1466.2	1421.8	1205.7
2025-09-01	1460.9	1436.1	1421.8	1205.7
2025-08-01	1459.3	1431.4	1421.8	1205.7
2025-07-01	1459.3	1431.4	1421.8	1205.7
2025-06-01	1459.3	1431.4	1421.8	1205.7
2025-05-01	1459.3	1431.4	1421.8	1205.7
2025-04-01	1440.9	1446.5	1346.7	1175.2
2025-03-01	1414.6	1419.5	1346.7	1175.2
2025-02-01	1396.4	1419.3	1286.2	1175.2
2025-01-01	1390.4	1413.9	1278.6	1175.2
2024-12-01	1390.4	1413.9	1278.6	1175.2
2024-11-01	1390.4	1413.9	1278.6	1175.2
2024-10-01	1390.4	1413.9	1278.6	1175.2
2024-09-01	1390.4	1413.9	1278.6	1175.2
2024-08-01	1390.4	1413.9	1278.6	1175.2
2024-07-01	1390.4	1413.9	1278.6	1175.2
2024-06-01	1390.4	1413.9	1278.6	1175.2
2024-08-01	1390.4	1413.9	1278.6	1175.2
2024-04-01	1418.1	1413.9	1342	1175.2
2024-03-01	1422.3	1433.4	1342	1175.2
2024-02-01	1409.7	1433.4	1286.2	1175.2
2024-01-01	1409.7	1433.4	1286.2	1175.2
2023-12-01	1409.7	1433.4	1286.2	1175.2
2023-11-01	1409.7	1433.4	1286.2	1175.2

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	Western Cape Schools - Top Schools 2025 (U15)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	4	Yes	Analysis
2	Overberg Top Schools 2025 (U15-U19)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U15 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	5	2	Yes	Analysis
4	Hermanus Chess Club Open 2025 (Intermediate)	2025-04-12	2025-04-12	Rapid	Overberg (WOS)	7	7	5.5	Yes	Analysis
5	Hermanus Chess Club Open 2025 (Blitz)	2025-04-11	2025-04-11	Blitz	Overberg (WOS)	9	9	4	Yes	Analysis
6	Overberg Schools - HS Closed 2025 (U15 Boys)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
7	Overberg Schools - HS Trials 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U15)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	4	Yes	Analysis
2	Overberg Top Schools 2025 (U15-U19)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U15 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	5	2	Yes	Analysis
4	Hermanus Chess Club Open 2025 (Intermediate)	2025-04-12	2025-04-12	Rapid	Overberg (WOS)	7	7	5.5	Yes	Analysis
5	Hermanus Chess Club Open 2025 (Blitz)	2025-04-11	2025-04-11	Blitz	Overberg (WOS)	9	9	4	Yes	Analysis
6	Overberg Schools - HS Closed 2025 (U15 Boys)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
7	Overberg Schools - HS Trials 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
8	Hermanus Chess Club Open 2024 (Advanced)	2024-04-20	2024-04-20	Rapid	Overberg (WOS)	7	7	1	Yes	Analysis
9	Western Cape HS Individuals Championship 2024 (U15 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	3	Yes	Analysis
10	Overberg High Schools Trails 2024 (U15 Boys)	2024-03-02	2024-03-02	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
11	Overberg High Schools Trails 2024 (U15)	2024-02-24	2024-02-24	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
12	Western Cape Top Schools 2023 (U13 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	5	3	Yes	Analysis
13	Overberg Top Schools 2023 (U13)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
14	Overberg Club Championships 2023 (A+B)	2023-07-29	2023-07-29	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
15	Hermanus Rapid 2023 (C)	2023-04-22	2023-04-22	Rapid	Overberg (WOS)	6	5	2.5	Yes	Analysis
16	Overberg School Chess Closed Tournament 2023 (U13 Boys)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
17	Overberg Primary School Trials (Region 2)	2023-02-24	2023-03-10	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
18	Overberg Schools Open Tournament 2023 (U14)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
19	Western Cape Top Schools 2022 (U13 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	4	3	Yes	Analysis
20	Kleinmond Open Tournament 2022 (A+B)	2022-09-10	2022-09-10	Rapid	Overberg (WOS)	5	4	0.5	Yes	Analysis
21	Overberg Topskole 2022 (O13)	2022-08-20	2022-08-20	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
22	The Hermanus Open 2022 (U14)	2022-05-14	2022-05-14	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
23	Western Cape Schools 2022 (U13 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
24	OCF Open 2022 (U14)	2022-04-09	2022-04-09	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
25	Overberg Primary Schools Closed 2022 (U13 Boys)	2022-03-12	2022-03-12	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
26	Overberg Schools Trials 2021 (U11)	2021-09-18	2021-09-18	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
27	OCF Club Champs 2021 (Juniors)	2021-06-05	2021-08-14	Standard	Overberg (WOS)	10	8	3.5	Yes	Analysis
28	Coast to Coast 2021 (U12)	2021-08-28	2021-08-28	Rapid	West Coast (WCU)	6	5	2	Yes	Analysis
29	Coast to Coast 2021 (Blitz)	2021-08-27	2021-08-27	Blitz	West Coast (WCU)	5	5	2	Yes	Analysis
30	Kleinmond Open 2021 (U10+U12)	2021-04-17	2021-04-17	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
31	OCF Roadshow 2020 (Juniors)	2020-11-21	2020-11-21	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
32	Overberg Closed 2020 (U11 Boys)	2020-03-15	2020-03-15	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
33	OCF Chess Tournament 3 2020 (U12)	2020-03-07	2020-03-07	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
34	OCF Chess Tournament 2 2020 (U12)	2020-02-01	2020-02-01	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
35	OCF Open 2020 (U8+U10)	2020-01-25	2020-01-25	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
36	2019 Western Cape Club Championship (C)	2019-10-25	2019-10-27	Standard	Overberg (WOS)	5	2	0	Yes	Analysis
37	Overberg Top Schools 2019 (U9)	2019-07-20	2019-07-20	Standard	Overberg (WOS)	3	2	2	Yes	Analysis

#	Games	Start				End
1	6	Tournament Western Cape Top Schools 2022				Tournament Overberg Schools Open Tournament 2023
		date 2022-09-16	rnd 1	type Standard	result 0.5	date 2023-02-11	rnd 2	type Rapid	result 1
		Opponent Prins, R (Reinhart)				Opponent De Villiers, C (Cecilia)
2	5	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Primary School Trials
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-03-10	rnd 4	type Rapid	result 1
		Opponent Mitchell, M (Matthew)				Opponent Davison, T (Thomas)
3	4	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-02-22	rnd 6	type Rapid	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Daki, I (Iviwe)				Opponent Foye, L (Logan)

#	Games	Start				End
1	9	Tournament Overberg Topskole 2022				Tournament Overberg School Chess Closed Tournament 2023
		date 2022-08-20	rnd 4	type Standard	result 1	date 2023-03-25	rnd 3	type Standard	result 1
		Opponent Brits, U (Udo)				Opponent Scholtz, F (Francois)
2	4	Tournament Western Cape HS Individuals Championship 2024				Tournament Overberg Schools - HS Closed 2025
		date 2024-03-22	rnd 6	type Standard	result 0.5	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Cooper, S (Shayden)				Opponent Foye, L (Logan)
3	4	Tournament Overberg Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-08-05	rnd 3	type Standard	result 1	date 2023-09-02	rnd 1	type Standard	result 1
		Opponent Viljoen, P (Pieter)				Opponent Van Heerden, H (Hannah Rose)

#	Games	Start				End
1	5	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Primary School Trials
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-03-10	rnd 4	type Rapid	result 1
		Opponent Mitchell, M (Matthew)				Opponent Davison, T (Thomas)
2	4	Tournament Overberg Schools - HS Trials 2025				Tournament Hermanus Chess Club Open 2025
		date 2025-02-22	rnd 6	type Rapid	result 1	date 2025-04-12	rnd 3	type Rapid	result 1
		Opponent Daki, I (Iviwe)				Opponent Butau, G (George)
3	4	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Jiri, H (Howard)				Opponent Van Wyk, C (Cayllum)

#	Games	Start				End
1	2	Tournament Hermanus Chess Club Open 2025				Tournament Hermanus Chess Club Open 2025
		date 2025-04-11	rnd 6	type Blitz	result 1	date 2025-04-11	rnd 7	type Blitz	result 1
		Opponent Da Fonseca, M (Matthew)				Opponent Laubscher, E (Erick)
2	2	Tournament Hermanus Chess Club Open 2025				Tournament Hermanus Chess Club Open 2025
		date 2025-04-11	rnd 3	type Blitz	result 1	date 2025-04-11	rnd 4	type Blitz	result 1
		Opponent Barnard, C (Charel)				Opponent Barnard, W (Willem)
3	1	Tournament Coast to Coast 2021				Tournament Coast to Coast 2021
		date 2021-08-27	rnd 5	type Blitz	result 1	date 2021-08-27	rnd 5	type Blitz	result 1
		Opponent Pekeur, A (Amy)				Opponent Pekeur, A (Amy)

#	Games	Start				End
1	5	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Primary School Trials
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-03-10	rnd 4	type Rapid	result 1
		Opponent Mitchell, M (Matthew)				Opponent Davison, T (Thomas)
2	4	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-02-22	rnd 6	type Rapid	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Daki, I (Iviwe)				Opponent Foye, L (Logan)
3	4	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Jiri, H (Howard)				Opponent Van Wyk, C (Cayllum)

#	Games	Start				End
1	5	Tournament Western Cape Top Schools 2022				Tournament Overberg School Chess Closed Tournament 2023
		date 2022-09-17	rnd 3	type Standard	result 1	date 2023-03-25	rnd 3	type Standard	result 1
		Opponent Benson, L (Luke)				Opponent Scholtz, F (Francois)
2	4	Tournament Overberg Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-08-05	rnd 3	type Standard	result 1	date 2023-09-02	rnd 1	type Standard	result 1
		Opponent Viljoen, P (Pieter)				Opponent Van Heerden, H (Hannah Rose)
3	4	Tournament Overberg Primary Schools Closed 2022				Tournament Western Cape Schools 2022
		date 2022-03-12	rnd 3	type Standard	result 1	date 2022-05-28	rnd 1	type Standard	result 1
		Opponent Van Der Merwe, J (Johannes)				Opponent Nel, T (Tobie)

#	Games	Start				End
1	5	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Primary School Trials
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-03-10	rnd 4	type Rapid	result 1
		Opponent Mitchell, M (Matthew)				Opponent Davison, T (Thomas)
2	4	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Jiri, H (Howard)				Opponent Van Wyk, C (Cayllum)
3	3	Tournament Hermanus Chess Club Open 2025				Tournament Hermanus Chess Club Open 2025
		date 2025-04-12	rnd 5	type Rapid	result 1	date 2025-04-12	rnd 7	type Rapid	result 1
		Opponent Jacobs, A (Ashlynn)				Opponent Maxwell, T (Tristan)

#	Games	Start				End
1	2	Tournament Hermanus Chess Club Open 2025				Tournament Hermanus Chess Club Open 2025
		date 2025-04-11	rnd 6	type Blitz	result 1	date 2025-04-11	rnd 7	type Blitz	result 1
		Opponent Da Fonseca, M (Matthew)				Opponent Laubscher, E (Erick)
2	2	Tournament Hermanus Chess Club Open 2025				Tournament Hermanus Chess Club Open 2025
		date 2025-04-11	rnd 3	type Blitz	result 1	date 2025-04-11	rnd 4	type Blitz	result 1
		Opponent Barnard, C (Charel)				Opponent Barnard, W (Willem)
3	1	Tournament Coast to Coast 2021				Tournament Coast to Coast 2021
		date 2021-08-27	rnd 5	type Blitz	result 1	date 2021-08-27	rnd 5	type Blitz	result 1
		Opponent Pekeur, A (Amy)				Opponent Pekeur, A (Amy)

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	Opperman ,C (Connor)	9	0	-425	5	0	-425	4	0	-425	0	0	0
1	Opperman ,C (Connor)	9	1631.6	1206.6	5	1588.5	1206.6	4	1515.3	1206.6	0	0	0
2	Mackenzie ,T (Tayden)	6	0	-425	3	0	-425	3	0	-425	0	0	0
2	Mackenzie ,T (Tayden)	6	1481	1056	3	1471.5	1056	3	1261	1056	0	0	0
3	Matinywa ,T (Thobani)	4	1.5	-106.2	4	1.5	-106.2	0	0	0	0	0	0
3	Matinywa ,T (Thobani)	4	1295	1188.8	4	1243.8	1188.8	0	0	0	0	0	0
4	Lusawana ,A (Asonele)	4	4	425	3	3	425	1	1	425	0	0	0
4	Lusawana ,A (Asonele)	4	1269.5	1694.5	3	1193.6	1694.5	1	1494.2	1694.5	0	0	0
5	Bekker ,A (Armin)	4	4	425	2	2	425	2	2	425	0	0	0
5	Bekker ,A (Armin)	4	1239.7	1664.7	2	1227.3	1664.7	2	1192.4	1664.7	0	0	0
6	Hendricks ,L (Lakeisha)	4	4	425	2	2	425	2	2	425	0	0	0
6	Hendricks ,L (Lakeisha)	4	1171	1596	2	1063.6	1596	2	1200.8	1596	0	0	0
7	Hendricks ,J (Jacquin)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
7	Hendricks ,J (Jacquin)	3	1225.7	942.4	3	1222.4	942.4	0	0	0	0	0	0
8	Prinsloo ,L (Lyle)	3	2	141.7	0	0	0	3	2	141.7	0	0	0
8	Prinsloo ,L (Lyle)	3	1397.6	1539.3	0	0	0	3	1360.9	1539.3	0	0	0
9	Lawrence ,J (Joel)	3	2	141.7	0	0	0	2	1	0	1	1	425
9	Lawrence ,J (Joel)	3	1304.7	1446.4	0	0	0	2	1361.6	1304.7	1	1200	1729.7
10	Schroeder ,L (Liam)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Schroeder ,L (Liam)	2	1449.7	1024.7	2	1434.2	1024.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Kiessling, K (Kai)

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Last 24 raw ratings

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Top 3 Streaks

Top 10 opponents most often played

Norms