Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kotzee, W (Wesley)

Chess SA id

1930149743

FIDE id

Date of birth

1993-11-09 (Adult)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-30

Personal details last changed

2025-05-29

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1437.7	1403.2	1368.4	1274.7
Raw rating	1437.7	1403.2	1365.8	1274.7
Weighted rating	1428.5	1372.4	1368.4	1273.7
Weighted performance	1361.2	1361.1	1165.2	0
Floor	963	907.7	885.8	774.7
K-factor	32	32	36	36
Min/Max rating change allowed	118.2	124.1	130.9	149.1
Highest rating	1467.1 2023-04-01	1549.5 2023-06-01	1486.5 2023-04-01	1274.7 2024-04-01
Highest raw rating	1463 2025-01-01	1407.7 2025-09-01	1385.8 2024-08-01	1274.7 2024-04-01
Highest weighted rating	1428.5 2025-09-30	1372.4 2025-09-30	1365.8 2025-08-01	1271.7 2025-08-01
Highest weighted performance	1469.2 2025-01-01	1549.5 2023-06-01	1486.5 2023-04-01	1215.5 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0.9	0
New rating	1437.7	1403.2	1369.3	1274.7
Analysis
Rating	1437.7	1403.2	1368.4	1274.7
Raw rating	1437.7	1403.2	1365.8	1274.7
Weighted rating	1428.5	1372.4	1368.4
Weighted performance	1361.2	1361.1	1165.2
K-factor	32	32	36	36
Floor	963	907.7	885.8	774.7
Max/Min rating change allowed	118.2	124.1	130.9	149.1
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	1437.7	1403.2	1365.8	1274.7
New weighted rating	1430.9	1376.8	1369.3	1274.3
New weighted performance	1360.7	1360.6	1164.7	0
Temp new rating	1437.7	1403.2	1369.3	1274.7
Temp new rating +/-	0	0	0.9	0
Final new rating +/-	0	0	0.9	0
New rating	1437.7	1403.2	1369.3	1274.7
New K-factor	32	32	36	36
New floor	963	907.7	885.8	774.7

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	15	11	4	0
	22	10	5	7
	27	5	15	7
	0	0	0	0
	0	0	0	0
History	64	26	24	14

Games since
	Main 44	Standard 21		Rapid 9		Blitz 14
Gender	Male
Age group	Adult
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1790		538		39
Male	1504		438		32
Adult	476		129		9
Adult Male	441		116		7
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	318		128		12
Male	303		124		11
Adult	207		87		5
Adult Male	200		84		5


	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	15	7.5	50	0	1385.5	1385.5
Standard	11	6	54.55	38.6	1390.1	1428.8
Rapid	4	1.5	37.5	-106.2	1372.9	1266.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	64	41	64.06	119.5	1375.7	1495.2
Standard	26	18	69.23	163.5	1353.7	1517.2
Rapid	24	15.5	64.58	124	1342	1466
Blitz	14	7.5	53.57	30.4	1474.2	1504.6

Date	Main	Standard	Rapid	Blitz
2025-09-30	1437.7	1403.2	1365.8	1274.7
2025-09-01	1439.6	1407.7	1365.8	1274.7
2025-08-01	1443.6	1404.9	1365.8	1274.7
2025-07-01	1443.6	1404.9	1363.9	1274.7
2025-06-01	1463	1404.9	1385.8	1274.7
2025-05-01	1463	1404.9	1385.8	1274.7
2025-04-01	1463	1404.9	1385.8	1274.7
2025-03-01	1463	1404.9	1385.8	1274.7
2025-02-01	1463	1404.9	1385.8	1274.7
2025-01-01	1463	1404.9	1385.8	1274.7
2024-12-01	1399.3	1312.8	1385.8	1274.7
2024-11-01	1399.3	1312.8	1385.8	1274.7
2024-10-01	1399.3	1312.8	1385.8	1274.7
2024-09-01	1399.3	1312.8	1385.8	1274.7
2024-08-01	1399.3	1312.8	1385.8	1274.7
2024-07-01	1366.1	1312.8	1310.6	1274.7
2024-06-01	1366.1	1312.8	1310.6	1274.7
2024-08-01	1366.1	1312.8	1310.6	1274.7
2024-04-01	1366.1	1312.8	1310.6	1274.7
2024-03-01	1353.5	1312.8	1310.6	1271.5
2024-02-01	1353.5	1312.8	1310.6	1271.5
2024-01-01	1353.5	1312.8	1310.6	1271.5
2023-12-01	1353.5	1283.6	1310.6	1176.8
2023-11-01	1348.6	1283.6	1310.6	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	Rooibos Open 2025 (Elite)	2025-08-30	2025-08-30	Standard	West Coast (WCU)	5	5	2.5	Yes	Analysis
2	Western Cape Women�s Championship 2025 (Advanced)	2025-08-08	2025-08-10	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
3	Shakirah Ruiters Youth Tournament 2025 (Elite)	2025-06-16	2025-06-16	Rapid	West Coast (WCU)	5	4	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Rooibos Open 2025 (Elite)	2025-08-30	2025-08-30	Standard	West Coast (WCU)	5	5	2.5	Yes	Analysis
2	Western Cape Women�s Championship 2025 (Advanced)	2025-08-08	2025-08-10	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
3	Shakirah Ruiters Youth Tournament 2025 (Elite)	2025-06-16	2025-06-16	Rapid	West Coast (WCU)	5	4	1.5	Yes	Analysis
4	St. Helena Bay Chess Club Open 2024 (B)	2024-12-07	2024-12-07	Standard	West Coast (WCU)	5	5	4.5	Yes	Analysis
5	Lambertsbay Chess Club Crayfish Classic 2024	2024-12-16	2024-12-16	Standard	West Coast (WCU)	5	5	3.5	Yes	Analysis
6	Vredendal North CC Open 2024 (Elite)	2024-07-27	2024-07-27	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
7	Western Cape Inter Region Cup 2024 (Blitz)	2024-03-22	2024-03-22	Blitz	Overberg (WOS)	7	7	4	Yes	Analysis
8	2023 Western Cape Rural Cup (Blitz)	2023-12-08	2023-12-08	Blitz	Cape Winelands (WCW)	7	7	3.5	Yes	Analysis
9	Youth Day 2 2023 (Elite)	2023-06-24	2023-06-24	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
10	West Coast Open 2023 (Elite)	2023-05-20	2023-06-03	Standard	West Coast (WCU)	5	5	4	Yes	Analysis
11	PRBCC Closed 2023 (A)	2023-04-15	2023-04-15	Rapid	West Coast (WCU)	6	5	4	Yes	Analysis
12	ORSK Back To School 2023 (A)	2023-02-04	2023-02-04	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis

#	Games	Start				End
1	15	Tournament Western Cape Inter Region Cup 2024				Tournament Lambertsbay Chess Club Crayfish Classic 2024
		date 2024-03-22	rnd 7	type Blitz	result 1	date 2024-12-16	rnd 4	type Standard	result 1
		Opponent Schmidt, U (Ulrich)				Opponent Siebritz, Y (Yul)
2	8	Tournament PRBCC Closed 2023				Tournament West Coast Open 2023
		date 2023-04-15	rnd 4	type Rapid	result 1	date 2023-06-03	rnd 5	type Standard	result 1
		Opponent Kameel, L (Lindon)				Opponent Don, K (Kyle)
3	3	Tournament Western Cape Women�s Championship 2025				Tournament Western Cape Women�s Championship 2025
		date 2025-08-09	rnd 2	type Standard	result 1	date 2025-08-09	rnd 4	type Standard	result 0.5
		Opponent Arendse, Q (Quinwinne)				Opponent Njokweni, L (Llyabona)

#	Games	Start				End
1	14	Tournament West Coast Open 2023				Tournament Lambertsbay Chess Club Crayfish Classic 2024
		date 2023-05-20	rnd 1	type Standard	result 1	date 2024-12-16	rnd 4	type Standard	result 1
		Opponent Duiker, P (Phillip)				Opponent Siebritz, Y (Yul)
2	3	Tournament Western Cape Women�s Championship 2025				Tournament Western Cape Women�s Championship 2025
		date 2025-08-09	rnd 2	type Standard	result 1	date 2025-08-09	rnd 4	type Standard	result 0.5
		Opponent Arendse, Q (Quinwinne)				Opponent Njokweni, L (Llyabona)
3	2	Tournament Rooibos Open 2025				Tournament Rooibos Open 2025
		date 2025-08-30	rnd 4	type Standard	result 0.5	date 2025-08-30	rnd 5	type Standard	result 1
		Opponent White, J (Jonovan)				Opponent Ellman, B (Basil)

#	Games	Start				End
1	6	Tournament Vredendal North CC Open 2024				Tournament Shakirah Ruiters Youth Tournament 2025
		date 2024-07-27	rnd 1	type Rapid	result 0.5	date 2025-06-16	rnd 1	type Rapid	result 1
		Opponent Bell, N (Neyo)				Opponent Titus, S (Sonay)
2	3	Tournament PRBCC Closed 2023				Tournament PRBCC Closed 2023
		date 2023-04-15	rnd 4	type Rapid	result 1	date 2023-04-15	rnd 6	type Rapid	result 1
		Opponent Kameel, L (Lindon)				Opponent Bell, N (Neyo)
3	3	Tournament ORSK Back To School 2023				Tournament PRBCC Closed 2023
		date 2023-02-04	rnd 4	type Rapid	result 1	date 2023-04-15	rnd 2	type Rapid	result 1
		Opponent Meyer, M (Martin)				Opponent Greeff, G (Giteau)

#	Games	Start				End
1	2	Tournament Western Cape Inter Region Cup 2024				Tournament Western Cape Inter Region Cup 2024
		date 2024-03-22	rnd 4	type Blitz	result 0.5	date 2024-03-22	rnd 5	type Blitz	result 1
		Opponent Swart, S (Sune)				Opponent Maruma, KB (Kamogelo)
2	2	Tournament Western Cape Inter Region Cup 2024				Tournament Western Cape Inter Region Cup 2024
		date 2024-03-22	rnd 1	type Blitz	result 0.5	date 2024-03-22	rnd 2	type Blitz	result 1
		Opponent Njokweni, L (Llyabona)				Opponent Cornforth, K (Kayleigh)
3	2	Tournament 2023 Western Cape Rural Cup				Tournament 2023 Western Cape Rural Cup
		date 2023-12-08	rnd 3	type Blitz	result 1	date 2023-12-08	rnd 4	type Blitz	result 0.5
		Opponent Muller, C (Christiaan)				Opponent Dyzel, P (Pieter)

#	Games	Start				End
1	6	Tournament Vredendal North CC Open 2024				Tournament St. Helena Bay Chess Club Open 2024
		date 2024-07-27	rnd 4	type Rapid	result 1	date 2024-12-07	rnd 4	type Standard	result 1
		Opponent Sedeman, A (Aiden)				Opponent Van Rooyen, S (Sergio)
2	4	Tournament PRBCC Closed 2023				Tournament West Coast Open 2023
		date 2023-04-15	rnd 4	type Rapid	result 1	date 2023-05-20	rnd 1	type Standard	result 1
		Opponent Kameel, L (Lindon)				Opponent Duiker, P (Phillip)
3	3	Tournament ORSK Back To School 2023				Tournament PRBCC Closed 2023
		date 2023-02-04	rnd 4	type Rapid	result 1	date 2023-04-15	rnd 2	type Rapid	result 1
		Opponent Meyer, M (Martin)				Opponent Greeff, G (Giteau)

#	Games	Start				End
1	5	Tournament West Coast Open 2023				Tournament St. Helena Bay Chess Club Open 2024
		date 2023-06-03	rnd 5	type Standard	result 1	date 2024-12-07	rnd 4	type Standard	result 1
		Opponent Don, K (Kyle)				Opponent Van Rooyen, S (Sergio)
2	2	Tournament Western Cape Women�s Championship 2025				Tournament Rooibos Open 2025
		date 2025-08-10	rnd 6	type Standard	result 1	date 2025-08-30	rnd 1	type Standard	result 1
		Opponent Matogo, D (Dennis)				Opponent Ockhuis, R (Ryan)
3	2	Tournament Western Cape Women�s Championship 2025				Tournament Western Cape Women�s Championship 2025
		date 2025-08-09	rnd 2	type Standard	result 1	date 2025-08-09	rnd 3	type Standard	result 1
		Opponent Arendse, Q (Quinwinne)				Opponent Maarman, L (Luciano)

#	Games	Start				End
1	3	Tournament Vredendal North CC Open 2024				Tournament Shakirah Ruiters Youth Tournament 2025
		date 2024-07-27	rnd 4	type Rapid	result 1	date 2025-06-16	rnd 1	type Rapid	result 1
		Opponent Sedeman, A (Aiden)				Opponent Titus, S (Sonay)
2	3	Tournament PRBCC Closed 2023				Tournament PRBCC Closed 2023
		date 2023-04-15	rnd 4	type Rapid	result 1	date 2023-04-15	rnd 6	type Rapid	result 1
		Opponent Kameel, L (Lindon)				Opponent Bell, N (Neyo)
3	3	Tournament ORSK Back To School 2023				Tournament PRBCC Closed 2023
		date 2023-02-04	rnd 4	type Rapid	result 1	date 2023-04-15	rnd 2	type Rapid	result 1
		Opponent Meyer, M (Martin)				Opponent Greeff, G (Giteau)

#	Games	Start				End
1	1	Tournament Western Cape Inter Region Cup 2024				Tournament Western Cape Inter Region Cup 2024
		date 2024-03-22	rnd 7	type Blitz	result 1	date 2024-03-22	rnd 7	type Blitz	result 1
		Opponent Schmidt, U (Ulrich)				Opponent Schmidt, U (Ulrich)
2	1	Tournament Western Cape Inter Region Cup 2024				Tournament Western Cape Inter Region Cup 2024
		date 2024-03-22	rnd 5	type Blitz	result 1	date 2024-03-22	rnd 5	type Blitz	result 1
		Opponent Maruma, KB (Kamogelo)				Opponent Maruma, KB (Kamogelo)
3	1	Tournament Western Cape Inter Region Cup 2024				Tournament Western Cape Inter Region Cup 2024
		date 2024-03-22	rnd 2	type Blitz	result 1	date 2024-03-22	rnd 2	type Blitz	result 1
		Opponent Cornforth, K (Kayleigh)				Opponent Cornforth, K (Kayleigh)

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	White ,J (Jonovan)	4	3	212.5	3	2	141.7	1	1	425	0	0	0
1	White ,J (Jonovan)	4	1279.3	1491.8	3	1265	1421	1	1189	1704.3	0	0	0
2	Bell ,N (Neyo)	4	3.5	318.8	2	2	425	2	1.5	212.5	0	0	0
2	Bell ,N (Neyo)	4	1239.7	1558.4	2	1176.7	1664.7	2	1247.9	1452.2	0	0	0
3	Kameel ,L (Lindon)	4	2.5	106.2	0	0	0	4	2.5	106.2	0	0	0
3	Kameel ,L (Lindon)	4	1434.8	1541	0	0	0	4	1419.2	1541	0	0	0
4	Booysen ,J (Jenilo)	3	0	-425	0	0	0	3	0	-425	0	0	0
4	Booysen ,J (Jenilo)	3	1469.6	1044.6	0	0	0	3	1437	1044.6	0	0	0
5	Sedeman ,A (Aiden)	2	1	0	1	0	-425	1	1	425	0	0	0
5	Sedeman ,A (Aiden)	2	1401.3	1401.3	1	1378.9	976.3	1	1435.4	1826.3	0	0	0
6	Klaase ,S (Shane)	2	1	0	1	0	-425	1	1	425	0	0	0
6	Klaase ,S (Shane)	2	1691.9	1691.9	1	1681.5	1266.9	1	1726	2116.9	0	0	0
7	Van Rooyen ,S (Sergio)	2	2	425	1	1	425	1	1	425	0	0	0
7	Van Rooyen ,S (Sergio)	2	1182.9	1607.9	1	1231.1	1607.9	1	1139.8	1607.9	0	0	0
8	Meyer ,M (Martin)	2	2	425	1	1	425	1	1	425	0	0	0
8	Meyer ,M (Martin)	2	1189.2	1614.2	1	1272.4	1614.2	1	1062	1614.2	0	0	0
9	Van Schalkwyk ,M (Morne)	2	1.5	212.5	0	0	0	2	1.5	212.5	0	0	0
9	Van Schalkwyk ,M (Morne)	2	1351.7	1564.2	0	0	0	2	1297.1	1564.2	0	0	0
10	Swart ,S (Sune)	2	0.5	-212.5	0	0	0	0	0	0	2	0.5	-212.5
10	Swart ,S (Sune)	2	1482.2	1269.8	0	0	0	0	0	0	2	1420.7	1269.8

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Kotzee, W (Wesley)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms