Chess South Africa Ratings Database

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Personal

Coetzee, T (Tristan)

Chess SA id

1150191747

FIDE id

Date of birth

2015-05-12 (U12)

Gender

Male

Region

Buffalo City (EBC)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

64.9

Junior GPX Points

1323.1

Item	Main	Standard	Rapid	Blitz
Rating	1591.9	1619.7	1328.1	1208.8
Raw rating	1591	1612.8	1328.1	1208.8
Weighted rating	1500.5	1509.2	1289.3	1193
Weighted performance	1591.9	1619.7	0	0
Floor	1091	1112.8	828.1	708.8
K-factor	32	28	36	36
Min/Max rating change allowed	95	92.1	138.1	163.8
Highest rating	1591.9 2025-11-01	1619.7 2025-11-01	1526 2024-04-01	1208.8 2025-05-05
Highest raw rating	1591 2025-11-01	1612.8 2025-11-01	1328.1 2025-11-01	1208.8 2025-05-05
Highest weighted rating	1538.5 2024-10-01	1509.2 2025-11-01	1317.4 2024-10-01	1208.8 2024-03-01
Highest weighted performance	1591.9 2025-11-01	1619.7 2025-11-01	1526 2024-04-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.9	-7	0	0
New rating	1591	1612.8	1328.1	1208.8
Analysis
Rating	1591.9	1619.7	1328.1	1208.8
Raw rating	1591	1612.8	1328.1	1208.8
Weighted rating	1500.5	1509.2	1289.3
Weighted performance	1591.9	1619.7	0
K-factor	32	28	36	36
Floor	1091	1112.8	828.1	708.8
Max/Min rating change allowed	95	92.1	138.1	163.8
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	1591	1612.8	1328.1	1208.8
New weighted rating	1513	1523.2	1293.7	1194.4
New weighted performance	1582.5	1610.1	0	0
Temp new rating	1591	1612.8	1328.1	1208.8
Temp new rating +/-	-0.9	-7	0	0
Final new rating +/-	-0.9	-7	0	0
New rating	1591	1612.8	1328.1	1208.8
New K-factor	32	28	36	36
New floor	1091	1112.8	828.1	708.8

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	83	48	19	16
	69	57	6	6
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	152	105	25	22

Games since
	Main 152	Standard 105		Rapid 25		Blitz 22
Gender	Male
Age group	U12
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	688		70		28
Male	615		64		26
U12	46		4		1
U12 Male	38		4		1
Standard
	RSA		Province		Region
Overall	537		54		23
Male	490		50		22
U12	32		3		1
U12 Male	27		3		1
Rapid
	RSA		Province		Region
Overall	891		69		21
Male	736		57		19
U12	143		6		4
U12 Male	104		4		3
Blitz
	RSA		Province		Region
Overall	443		43		22
Male	405		40		20
U12	16		3		1
U12 Male	13		3		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	83	56	67.47	148.5	1375.5	1524
Standard	48	35	72.92	194.8	1389.9	1584.7
Rapid	19	12	63.16	111.8	1325	1436.8
Blitz	16	9	56.25	53.1	1392.3	1445.5
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	152	105	69.08	162.2	1316.6	1478.7
Standard	105	78	74.29	206.4	1303.1	1509.5
Rapid	25	17	68	153	1308	1461
Blitz	22	10	45.45	-38.6	1390.7	1352.1

Date	Main	Standard	Rapid	Blitz
2025-11-01	1591	1612.8	1328.1	1208.8
2025-09-30	1559.9	1574	1288.9	1208.8
2025-09-01	1540.1	1556.8	1288.9	1208.8
2025-08-01	1538.5	1558.8	1288.9	1208.8
2025-07-01	1538.5	1558.8	1288.9	1208.8
2025-06-01	1538.5	1558.8	1288.9	1208.8
2025-05-01	1509.3	1534.4	1288.9	1208.8
2025-04-01	1516.5	1518.9	1317.4	1189.7
2025-03-01	1528.3	1532.8	1317.4	1189.7
2025-02-01	1533.4	1532.8	1284.8	1189.7
2025-01-01	1537.7	1538.9	1284.8	1151.6
2024-12-01	1531.7	1547.2	1284.8	1151.6
2024-11-01	1531.7	1547.2	1284.8	1151.6
2024-10-01	1434.1	1466.6	1284.8	1151.6
2024-09-01	1393.5	1383.9	1284.8	1151.6
2024-08-01	1400	1363.7	1284.8	1200
2024-07-01	1429	1397.9	1284.8	1200
2024-09-01	1379.2	1349.7	1284.8	1200
2024-05-01	1325.3	1278.5	1284.8	1200
2024-04-01	1239.4	1240.3	1200	1200
2024-03-01	1234.9	1235.6	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	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	Chess Vikings Trials 2 2025 (C)	2025-10-18	2025-10-18	Standard	Buffalo City (EBC)	5	5	4.5	Yes	Analysis
2	BC Open 2025 (U10-U14)	2025-10-04	2025-10-04	Rapid	Buffalo City (EBC)	7	7	5	Yes	Analysis
3	EC Closed 2025 (U12 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4.5	Yes	Analysis
4	Buffalo City Chess Junior Closed 2025 (U12 Open)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
5	3rd Chess Vikings Open Championship 2025 (C)	2025-08-02	2025-08-02	Standard	Buffalo City (EBC)	6	6	5	Yes	Analysis
6	EC Open 2025 (U8-U14 Boys)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	7	5	Yes	Analysis
7	Vikings Holiday 2025 (Rapid B)	2025-04-05	2025-04-05	Rapid	Buffalo City (EBC)	5	5	2	Yes	Analysis
8	Vikings Holiday 2025 (Blitz B)	2025-04-05	2025-04-05	Blitz	Buffalo City (EBC)	7	7	4	Yes	Analysis
9	2025 Buffalo City Chess Trials 2 (U12)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
10	2025 Buffalo City Chess Trials 1 (U12)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
11	Vikings Classical March 2025 (A)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
12	Rapid Feb 2nd Leg 2025 (U12)	2025-02-22	2025-02-22	Rapid	Buffalo City (EBC)	7	7	5	Yes	Analysis
13	NMBCU vs BCC Derby Chess Invitational 2025 (U10)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
14	NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open B)	2025-01-12	2025-01-12	Blitz	Nelson Mandela Bay (ENM)	9	9	5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Chess Vikings Trials 2 2025 (C)	2025-10-18	2025-10-18	Standard	Buffalo City (EBC)	5	5	4.5	Yes	Analysis
2	BC Open 2025 (U10-U14)	2025-10-04	2025-10-04	Rapid	Buffalo City (EBC)	7	7	5	Yes	Analysis
3	EC Closed 2025 (U12 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	4.5	Yes	Analysis
4	Buffalo City Chess Junior Closed 2025 (U12 Open)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
5	3rd Chess Vikings Open Championship 2025 (C)	2025-08-02	2025-08-02	Standard	Buffalo City (EBC)	6	6	5	Yes	Analysis
6	EC Open 2025 (U8-U14 Boys)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	7	5	Yes	Analysis
7	Vikings Holiday 2025 (Rapid B)	2025-04-05	2025-04-05	Rapid	Buffalo City (EBC)	5	5	2	Yes	Analysis
8	Vikings Holiday 2025 (Blitz B)	2025-04-05	2025-04-05	Blitz	Buffalo City (EBC)	7	7	4	Yes	Analysis
9	2025 Buffalo City Chess Trials 2 (U12)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
10	2025 Buffalo City Chess Trials 1 (U12)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
11	Vikings Classical March 2025 (A)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
12	Rapid Feb 2nd Leg 2025 (U12)	2025-02-22	2025-02-22	Rapid	Buffalo City (EBC)	7	7	5	Yes	Analysis
13	NMBCU vs BCC Derby Chess Invitational 2025 (U10)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
14	NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open B)	2025-01-12	2025-01-12	Blitz	Nelson Mandela Bay (ENM)	9	9	5	Yes	Analysis
15	EL Junior Closed 2024 (U10)	2024-11-23	2024-11-23	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
16	East London Open 2024 (C)	2024-11-05	2024-11-05	Standard	Buffalo City (EBC)	6	5	5	Yes	Analysis
17	7th Annual UFH Heritage Open 2024 (D)	2024-09-21	2024-09-21	Standard	Amathole (EAL)	5	4	4	Yes	Analysis
18	5th BC Trials 2024 (HS B)	2024-08-24	2024-08-24	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis
19	5th BC Trails 2024 (U10A)	2024-08-17	2024-08-17	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
20	Hackers Open 2024 (Blitz)	2024-08-11	2024-08-11	Blitz	Buffalo City (EBC)	7	6	1	Yes	Analysis
21	BC 4th HS Trials 204 (B)	2024-07-20	2024-07-20	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
22	4th BC Trials 2024 (U10A)	2024-06-08	2024-06-08	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
23	3rd BC Trials 2024 (U10A)	2024-05-11	2024-05-11	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
24	Bhongweni Chess Club Open 2024 (U10)	2024-04-27	2024-04-27	Rapid	Buffalo City (EBC)	6	6	5	Yes	Analysis
25	UFH Open 2024 (C)	2024-04-13	2024-04-13	Standard	Amathole (EAL)	5	5	2.5	Yes	Analysis
26	2nd Buffalo City Chess Trials 2024 (High School B)	2024-04-06	2024-04-06	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
27	1st BC Chess Trials 2024 (HS B)	2024-03-02	2024-03-02	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
28	Buffalo City Vikings Chess Trials 2024 (U10A+U10B)	2024-02-03	2024-02-03	Standard	Buffalo City (EBC)	5	4	3	Yes	Analysis

#	Games	Start				End
1	15	Tournament 5th BC Trials 2024				Tournament EL Junior Closed 2024
		date 2024-08-24	rnd 3	type Standard	result 1	date 2024-11-23	rnd 3	type Standard	result 1
		Opponent Hashe, Q (Qhawe)				Opponent Zheyi, X (Xu)
2	8	Tournament BC Open 2025				Tournament Chess Vikings Trials 2 2025
		date 2025-10-04	rnd 5	type Rapid	result 1	date 2025-10-18	rnd 5	type Standard	result 0.5
		Opponent Mazikana, E (Elsie)				Opponent Kim, H (Haeol)
3	6	Tournament 3rd Chess Vikings Open Championship 2025				Tournament Buffalo City Chess Junior Closed 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Karthikeyan, T (Thanisha)				Opponent Xu, Z (Zheyi)

#	Games	Start				End
1	15	Tournament 5th BC Trials 2024				Tournament EL Junior Closed 2024
		date 2024-08-24	rnd 3	type Standard	result 1	date 2024-11-23	rnd 3	type Standard	result 1
		Opponent Hashe, Q (Qhawe)				Opponent Zheyi, X (Xu)
2	6	Tournament 3rd Chess Vikings Open Championship 2025				Tournament Buffalo City Chess Junior Closed 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Karthikeyan, T (Thanisha)				Opponent Xu, Z (Zheyi)
3	6	Tournament 3rd BC Trials 2024				Tournament 4th BC Trials 2024
		date 2024-05-11	rnd 2	type Standard	result 1	date 2024-06-08	rnd 2	type Standard	result 1
		Opponent Saliwe, S (Siphesihle)				Opponent Gwana, L (Libubomi)

#	Games	Start				End
1	6	Tournament Bhongweni Chess Club Open 2024				Tournament Rapid Feb 2nd Leg 2025
		date 2024-04-27	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Tozini, A (Avuzwa)				Opponent Kuo, C (Chih-Hsun)
2	3	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Khobothi, L (Liseko)				Opponent Gula, U (Ululutho)
3	2	Tournament Vikings Holiday 2025				Tournament Vikings Holiday 2025
		date 2025-04-05	rnd 1	type Rapid	result 1	date 2025-04-05	rnd 2	type Rapid	result 1
		Opponent Xu, Z (Zheyi)				Opponent Krouse, L (Logan)

#	Games	Start				End
1	3	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 1	type Blitz	result 1	date 2025-01-12	rnd 3	type Blitz	result 1
		Opponent Norris, B (Britney)				Opponent King, J (Jaymie)
2	2	Tournament Vikings Holiday 2025				Tournament Vikings Holiday 2025
		date 2025-04-05	rnd 2	type Blitz	result 1	date 2025-04-05	rnd 3	type Blitz	result 1
		Opponent Kipati, A (Aaron)				Opponent Krouse, L (Logan)
3	2	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 6	type Blitz	result 1	date 2025-01-12	rnd 7	type Blitz	result 1
		Opponent Masoeu, S (Senogo)				Opponent Lin, Y (Yifan)

#	Games	Start				End
1	13	Tournament 5th BC Trials 2024				Tournament EL Junior Closed 2024
		date 2024-08-24	rnd 5	type Standard	result 1	date 2024-11-23	rnd 3	type Standard	result 1
		Opponent Mbuqe, M (Milani)				Opponent Zheyi, X (Xu)
2	6	Tournament 3rd BC Trials 2024				Tournament 4th BC Trials 2024
		date 2024-05-11	rnd 2	type Standard	result 1	date 2024-06-08	rnd 2	type Standard	result 1
		Opponent Saliwe, S (Siphesihle)				Opponent Gwana, L (Libubomi)
3	5	Tournament 2025 Buffalo City Chess Trials 2				Tournament EC Open 2025
		date 2025-04-12	rnd 4	type Standard	result 1	date 2025-05-02	rnd 3	type Standard	result 1
		Opponent Maciki, I (Ibenathi)				Opponent Halana, L (Lunjalo)

#	Games	Start				End
1	13	Tournament 5th BC Trials 2024				Tournament EL Junior Closed 2024
		date 2024-08-24	rnd 5	type Standard	result 1	date 2024-11-23	rnd 3	type Standard	result 1
		Opponent Mbuqe, M (Milani)				Opponent Zheyi, X (Xu)
2	6	Tournament 3rd BC Trials 2024				Tournament 4th BC Trials 2024
		date 2024-05-11	rnd 2	type Standard	result 1	date 2024-06-08	rnd 2	type Standard	result 1
		Opponent Saliwe, S (Siphesihle)				Opponent Gwana, L (Libubomi)
3	5	Tournament 2025 Buffalo City Chess Trials 2				Tournament EC Open 2025
		date 2025-04-12	rnd 4	type Standard	result 1	date 2025-05-02	rnd 3	type Standard	result 1
		Opponent Maciki, I (Ibenathi)				Opponent Halana, L (Lunjalo)

#	Games	Start				End
1	6	Tournament Bhongweni Chess Club Open 2024				Tournament Rapid Feb 2nd Leg 2025
		date 2024-04-27	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Tozini, A (Avuzwa)				Opponent Kuo, C (Chih-Hsun)
2	3	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent Khobothi, L (Liseko)				Opponent Gula, U (Ululutho)
3	2	Tournament Vikings Holiday 2025				Tournament Vikings Holiday 2025
		date 2025-04-05	rnd 1	type Rapid	result 1	date 2025-04-05	rnd 2	type Rapid	result 1
		Opponent Xu, Z (Zheyi)				Opponent Krouse, L (Logan)

#	Games	Start				End
1	3	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 1	type Blitz	result 1	date 2025-01-12	rnd 3	type Blitz	result 1
		Opponent Norris, B (Britney)				Opponent King, J (Jaymie)
2	2	Tournament Vikings Holiday 2025				Tournament Vikings Holiday 2025
		date 2025-04-05	rnd 2	type Blitz	result 1	date 2025-04-05	rnd 3	type Blitz	result 1
		Opponent Kipati, A (Aaron)				Opponent Krouse, L (Logan)
3	2	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 6	type Blitz	result 1	date 2025-01-12	rnd 7	type Blitz	result 1
		Opponent Masoeu, S (Senogo)				Opponent Lin, Y (Yifan)

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	Lin ,Y (Yifan)	6	2.5	-70.8	4	1.5	-106.2	1	0	-425	1	1	425
1	Lin ,Y (Yifan)	6	1484.8	1414	4	1486	1378.6	1	1200	1059.8	1	1200	1909.8
2	Kuo ,C (Chih-Hsun)	5	4	255	4	3	212.5	1	1	425	0	0	0
2	Kuo ,C (Chih-Hsun)	5	1257.9	1512.9	4	1263.2	1470.4	1	1200	1682.9	0	0	0
3	Wood ,S (Sebastian)	4	2	0	3	2	141.7	1	0	-425	0	0	0
3	Wood ,S (Sebastian)	4	1312.1	1312.1	3	1290.9	1453.7	1	1255.4	887.1	0	0	0
4	Xu ,Z (Zheyi)	4	4	425	3	3	425	1	1	425	0	0	0
4	Xu ,Z (Zheyi)	4	1300.7	1725.7	3	1278	1725.7	1	1361.9	1725.7	0	0	0
5	Gonya ,M (Mvuni)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
5	Gonya ,M (Mvuni)	3	1305.2	1305.2	3	1294.7	1305.2	0	0	0	0	0	0
6	Ndwandwa ,L (Longezo)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
6	Ndwandwa ,L (Longezo)	3	1457.3	1315.7	3	1436.5	1315.7	0	0	0	0	0	0
7	Gwana ,L (Libubomi)	3	3	425	2	2	425	1	1	425	0	0	0
7	Gwana ,L (Libubomi)	3	1272.9	1697.9	2	1265.6	1697.9	1	1215.1	1697.9	0	0	0
8	Dikane ,A (Akhelethu)	3	3	425	2	2	425	1	1	425	0	0	0
8	Dikane ,A (Akhelethu)	3	1296.3	1721.3	2	1365.7	1721.3	1	1200	1721.3	0	0	0
9	Mxabo ,M (Masonwabe)	3	2	141.7	2	1	0	1	1	425	0	0	0
9	Mxabo ,M (Masonwabe)	3	1384.5	1526.2	2	1350.3	1384.5	1	1358.5	1809.5	0	0	0
10	Krouse ,L (Logan)	3	3	425	1	1	425	1	1	425	1	1	425
10	Krouse ,L (Logan)	3	1225.6	1650.6	1	1244	1650.6	1	1199.9	1650.6	1	1200	1650.6

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Coetzee, T (Tristan)

Ratings

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Last 24 raw ratings

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Top 10 opponents most often played

Norms