Chess South Africa Ratings Database

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Personal

Barends, Z (Zac)

Chess SA id

1110131799

FIDE id

Date of birth

2011-07-20 (U16)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-04-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1276.7	1284.2	1218.2	1200
Raw rating	1276.6	1284.2	1218.2	1200
Weighted rating	1276.7	1283.7	1217.8	1200
Weighted performance	982.9	945.9	908	0
Floor	788.8	784.2	759.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	148.7	147.1	161.6	165.8
Highest rating	1302.2 2023-09-01	1284.2 2024-03-01	1340 2022-03-01	1200 2018-10-01
Highest raw rating	1288.8 2024-03-01	1284.2 2024-03-01	1259.2 2022-11-01	1200 2024-02-01
Highest weighted rating	1276.6 2025-08-01	1283.1 2025-08-01	1259.2 2023-05-01	1200 2018-10-01
Highest weighted performance	1302.2 2023-09-01	1282.7 2023-09-01	1340 2022-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0	0	0	0
New rating	1276.7	1284.2	1218.2	1200
Analysis
Rating	1276.7	1284.2	1218.2	1200
Raw rating	1276.6	1284.2	1218.2	1200
Weighted rating	1276.7	1283.7	1217.8
Weighted performance	982.9	945.9	908
K-factor	36	36	36	36
Floor	788.8	784.2	759.2	700
Max/Min rating change allowed	148.7	147.1	161.6	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	1276.6	1284.2	1218.2	1200
New weighted rating	1276.7	1283.9	1217.6	1200
New weighted performance	982.4	945.5	907.6	0
Temp new rating	1276.7	1284.2	1218.2	1200
Temp new rating +/-	-0	0	0	0
Final new rating +/-	-0	0	0	0
New rating	1276.7	1284.2	1218.2	1200
New K-factor	36	36	36	36
New floor	788.8	784.2	759.2	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	8	5	3
	46	20	26
	33	17	16
	0	0	0
History	91	46	45

Games since
	Main 14	Standard 5		Rapid 9		Blitz 0
Gender	Male
Age group	U16
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	91	44.5	48.9	-9.3	1258.9	1249.6
Standard	46	23	50	0	1245.2	1245.2
Rapid	45	21.5	47.78	-18.9	1273	1254.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1276.6	1284.2	1218.2	1200
2025-09-01	1276.6	1284.2	1218.2	1200
2025-08-01	1276.6	1284.2	1218.2	1200
2025-07-01	1276.5	1284.2	1218.2	1200
2025-06-01	1276.2	1284.2	1218.2	1200
2025-05-01	1275.8	1284.2	1218.1	1200
2025-04-01	1275.8	1284.2	1218	1200
2025-03-01	1275.8	1284.2	1217.9	1200
2025-02-01	1275.8	1284.2	1217.6	1200
2025-01-01	1275.8	1284.2	1213.6	1200
2024-12-01	1275.8	1284.2	1213.6	1200
2024-11-01	1275.8	1284.2	1213.6	1200
2024-10-01	1275.8	1284.2	1213.6	1200
2024-09-01	1275.8	1284.2	1213.6	1200
2024-08-01	1275.8	1284.2	1213.6	1200
2024-07-01	1275.8	1284.2	1213.6	1200
2024-06-01	1275.8	1284.2	1213.6	1200
2024-08-01	1288.8	1284.2	1229.4	1200
2024-04-01	1288.8	1284.2	1229.4	1200
2024-03-01	1288.8	1284.2	1229.4	1200
2024-02-01	1270.9	1269.1	1229.4	1200
2024-01-01	1270.9	1269.1	1229.4	1200
2023-12-01	1270.9	1269.1	1229.4	1200
2023-11-01	1270.9	1269.1	1229.4	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Junior League - Qualifier 2 2024 (U13)	2024-04-20	2024-04-20	Rapid	Cape Town (WCT)	6	3	1	Yes	Analysis
2	North District School Trials 2024 (U13 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis
3	Chas Everitt and MHI Attorneys Rapid 2023 (U14)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
4	Western Cape Closed Championship 2023 (U14)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
5	WP Club League 2023 (D PlayOffs)	2023-09-02	2023-09-09	Standard	Cape Town (WCT)	5	3	2	Yes	Analysis
6	WP Club League 2023 (D1)	2023-07-29	2023-08-19	Standard	Cape Town (WCT)	6	5	3	Yes	Analysis
7	Curro Durbanville Chess Open Rapid 2023 (U14)	2023-07-15	2023-07-15	Rapid	Cape Town (WCT)	6	3	1.5	Yes	Analysis
8	Steinitz Open 2023 (U14)	2023-05-27	2023-05-27	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
9	Cape Town Junior Chess League Q1 2023	2023-05-13	2023-05-13	Rapid	Cape Town (WCT)	7	6	1	Yes	Analysis
10	Cape Town Metro Schools Chess Closed Individuals 2023 (U13 Boys)	2023-02-03	2023-03-04	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
11	North District School Trials 2023 (U13 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
12	Kenridge Rapid 2022 (U12)	2022-11-05	2022-11-05	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
13	Western Cape Club Championship 2022 (Tier 2)	2022-10-07	2022-10-09	Standard	Cape Town (WCT)	6	5	1	Yes	Analysis
14	Metro Rapid 2022 (U11 Boys)	2022-10-22	2022-10-22	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
15	2022 Western Province Club League (Junior)	2022-08-27	2022-09-17	Standard	Cape Town (WCT)	7	6	2	Yes	Analysis
16	Metro WP Schools Chess Trials 2022 (U11 Boys)	2022-04-22	2022-04-23	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
17	District North 2022 (U11)	2022-03-05	2022-03-05	Rapid	Cape Town (WCT)	6	5	3	Yes	Analysis
18	2020 Cape Of Good Hope Open (U10)	2020-02-22	2020-02-22	Standard	Cape Town (WCT)	5	4	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament Chas Everitt and MHI Attorneys Rapid 2023				Tournament North District School Trials 2024
		date 2023-11-04	rnd 6	type Rapid	result 1	date 2024-02-03	rnd 2	type Standard	result 1
		Opponent Felix, C (Camren)				Opponent Donaldson, N (Naude)
2	3	Tournament Curro Durbanville Chess Open Rapid 2023				Tournament WP Club League 2023
		date 2023-07-15	rnd 3	type Rapid	result 0.5	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Kirthan, V (Vajra)				Opponent De Wee, J (Jaydene)
3	3	Tournament Steinitz Open 2023				Tournament Steinitz Open 2023
		date 2023-05-27	rnd 2	type Rapid	result 1	date 2023-05-27	rnd 4	type Rapid	result 1
		Opponent Wolff, S (Samuel)				Opponent Janse Van Rensburg, N (Nicolas)

#	Games	Start				End
1	4	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament WP Club League 2023
		date 2023-03-04	rnd 5	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Rossi, V (Valentino)				Opponent De Wee, J (Jaydene)
2	3	Tournament Western Cape Club Championship 2022				Tournament North District School Trials 2023
		date 2022-10-09	rnd 6	type Standard	result 1	date 2023-02-03	rnd 2	type Standard	result 0.5
		Opponent Shapiro, H (Hannah)				Opponent Scheepers, R (Riko)
3	2	Tournament North District School Trials 2024				Tournament North District School Trials 2024
		date 2024-02-03	rnd 4	type Standard	result 1	date 2024-02-03	rnd 5	type Standard	result 0.5
		Opponent Links, T (Tyler)				Opponent Sonamzi, O (Ovayo)

#	Games	Start				End
1	3	Tournament Steinitz Open 2023				Tournament Steinitz Open 2023
		date 2023-05-27	rnd 2	type Rapid	result 1	date 2023-05-27	rnd 4	type Rapid	result 1
		Opponent Wolff, S (Samuel)				Opponent Janse Van Rensburg, N (Nicolas)
2	3	Tournament Kenridge Rapid 2022				Tournament Kenridge Rapid 2022
		date 2022-11-05	rnd 3	type Rapid	result 1	date 2022-11-05	rnd 5	type Rapid	result 1
		Opponent Johannes, Z (Zoe)				Opponent Tisana, K (Kwazokuhle)
3	3	Tournament District North 2022				Tournament Metro Rapid 2022
		date 2022-03-05	rnd 5	type Rapid	result 1	date 2022-10-22	rnd 1	type Rapid	result 1
		Opponent Niewenhuizen, J (Jan-Hendrik)				Opponent Niemann, J (Jandre)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Chas Everitt and MHI Attorneys Rapid 2023				Tournament North District School Trials 2024
		date 2023-11-04	rnd 6	type Rapid	result 1	date 2024-02-03	rnd 2	type Standard	result 1
		Opponent Felix, C (Camren)				Opponent Donaldson, N (Naude)
2	3	Tournament Steinitz Open 2023				Tournament Steinitz Open 2023
		date 2023-05-27	rnd 2	type Rapid	result 1	date 2023-05-27	rnd 4	type Rapid	result 1
		Opponent Wolff, S (Samuel)				Opponent Janse Van Rensburg, N (Nicolas)
3	3	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Junior Chess League Q1 2023
		date 2023-03-04	rnd 5	type Standard	result 1	date 2023-05-13	rnd 1	type Rapid	result 1
		Opponent Rossi, V (Valentino)				Opponent Bowers, C (Chad)

#	Games	Start				End
1	4	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament WP Club League 2023
		date 2023-03-04	rnd 5	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Rossi, V (Valentino)				Opponent De Wee, J (Jaydene)
2	2	Tournament North District School Trials 2024				Tournament North District School Trials 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 2	type Standard	result 1
		Opponent Chigumira, D (Divine)				Opponent Donaldson, N (Naude)
3	2	Tournament WP Club League 2023				Tournament WP Club League 2023
		date 2023-09-02	rnd 1	type Standard	result 1	date 2023-09-02	rnd 2	type Standard	result 1
		Opponent Michaelides, A (Alexander)				Opponent Maqwathini, Z (Zama)

#	Games	Start				End
1	3	Tournament Steinitz Open 2023				Tournament Steinitz Open 2023
		date 2023-05-27	rnd 2	type Rapid	result 1	date 2023-05-27	rnd 4	type Rapid	result 1
		Opponent Wolff, S (Samuel)				Opponent Janse Van Rensburg, N (Nicolas)
2	3	Tournament Kenridge Rapid 2022				Tournament Kenridge Rapid 2022
		date 2022-11-05	rnd 3	type Rapid	result 1	date 2022-11-05	rnd 5	type Rapid	result 1
		Opponent Johannes, Z (Zoe)				Opponent Tisana, K (Kwazokuhle)
3	3	Tournament District North 2022				Tournament Metro Rapid 2022
		date 2022-03-05	rnd 5	type Rapid	result 1	date 2022-10-22	rnd 1	type Rapid	result 1
		Opponent Niewenhuizen, J (Jan-Hendrik)				Opponent Niemann, J (Jandre)

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	Shapiro ,H (Hannah)	2	1	0	2	1	0	0	0	0	0	0	0
1	Shapiro ,H (Hannah)	2	1344.9	1344.9	2	1330.1	1344.9	0	0	0	0	0	0
2	Scheepers ,R (Riko)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
2	Scheepers ,R (Riko)	2	1236.9	1024.4	1	1200	1236.9	1	1278.5	811.9	0	0	0
3	Hibbins ,G (Graeme)	2	0	-425	0	0	0	2	0	-425	0	0	0
3	Hibbins ,G (Graeme)	2	1411.7	986.7	0	0	0	2	1400.4	986.7	0	0	0
4	Mafilika ,O (Onikayo)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Mafilika ,O (Onikayo)	1	1247.4	822.4	1	1200	822.4	0	0	0	0	0	0
5	Xabadiya ,N (Nizibone)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Xabadiya ,N (Nizibone)	1	1089.3	664.3	1	1072.4	664.3	0	0	0	0	0	0
6	Vicario ,K (King)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Vicario ,K (King)	1	1215.4	790.4	1	1200	790.4	0	0	0	0	0	0
7	Smit ,D (Danie)	1	1	425	1	1	425	0	0	0	0	0	0
7	Smit ,D (Danie)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Gqoloza ,L (Lulibo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Gqoloza ,L (Lulibo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Rossi ,V (Valentino)	1	1	425	1	1	425	0	0	0	0	0	0
9	Rossi ,V (Valentino)	1	1219.6	1644.6	1	1236	1644.6	0	0	0	0	0	0
10	Maqwathini ,Z (Zama)	1	1	425	1	1	425	0	0	0	0	0	0
10	Maqwathini ,Z (Zama)	1	1257.9	1682.9	1	1259.4	1682.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Barends, Z (Zac)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms