Chess South Africa Ratings Database

PLAYER PAGE

Personal

Terwin, J (Jordin)

Chess SA id

1120112259

FIDE id

Date of birth

2012-01-08 (U14)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-21

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1266

Item	Main	Standard	Rapid	Blitz
Rating	1324.8	1330.9	1254.7	1200
Raw rating	1324.8	1330.9	1241.1	1200
Weighted rating	1306.2	1294.1	1254.7	1200
Weighted performance	1276	1311.1	0	0
Floor	847.8	864.3	761.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	138.8	137.6	156.4	165.8
Highest rating	1347.8 2025-09-01	1364.3 2025-09-01	1455.5 2024-03-01	1200 2018-10-01
Highest raw rating	1347.8 2025-09-01	1364.3 2025-09-01	1261.8 2025-05-05	1200 2024-02-01
Highest weighted rating	1306.2 2025-09-30	1294.1 2025-09-30	1255.1 2025-08-01	1200 2018-10-01
Highest weighted performance	1319.6 2025-09-01	1358.2 2025-09-01	1455.5 2024-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-0.4	0
New rating	1324.8	1330.9	1254.3	1200
Analysis
Rating	1324.8	1330.9	1254.7	1200
Raw rating	1324.8	1330.9	1241.1	1200
Weighted rating	1306.2	1294.1	1254.7
Weighted performance	1276	1311.1	0
K-factor	36	36	36	36
Floor	847.8	864.3	761.8	700
Max/Min rating change allowed	138.8	137.6	156.4	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	1324.8	1330.9	1241.1	1200
New weighted rating	1309.1	1298.3	1254.3	1200
New weighted performance	1275.6	1310.7	0	0
Temp new rating	1324.8	1330.9	1254.3	1200
Temp new rating +/-	0	0	-0.4	0
Final new rating +/-	0	0	-0.4	0
New rating	1324.8	1330.9	1254.3	1200
New K-factor	36	36	36	36
New floor	847.8	864.3	761.8	700

Item	Main	Standard	Rapid
	0	0	0
	35	25	10
	25	15	10
	0	0	0
	5	5	0
	0	0	0
History	70	50	20

Games since
	Main 60	Standard 40		Rapid 20		Blitz 0
Gender	Male
Age group	U14
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2941		988		153
Male	2332		781		118
U14	538		164		29
U14 Male	395		121		21
Standard
	RSA		Province		Region
Overall	2769		1000		133
Male	2219		804		111
U14	501		164		23
U14 Male	367		122		19
Rapid
	RSA		Province		Region
Overall	1317		226		75
Male	1055		180		46
U14	286		41		22
U14 Male	204		24		10
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	35	19	54.29	36.4	1304.2	1340.6
Standard	25	14	56	51	1319.7	1370.7
Rapid	10	5	50	0	1265.5	1265.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	70	40.5	57.86	66.8	1274.7	1341.5
Standard	50	28.5	57	59.5	1282.7	1342.2
Rapid	20	12	60	85	1254.7	1339.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1324.8	1330.9	1241.1	1200
2025-09-01	1347.8	1364.3	1241.1	1200
2025-08-01	1334.6	1326.1	1261.8	1200
2025-07-01	1332.2	1322.3	1261.8	1200
2025-06-01	1307.2	1284.2	1261.8	1200
2025-05-01	1307.2	1284.2	1261.8	1200
2025-04-01	1301.4	1284.2	1261.6	1200
2025-03-01	1301.4	1284.2	1261.6	1200
2025-02-01	1301.4	1284.2	1261.6	1200
2025-01-01	1301.4	1284.2	1261.6	1200
2024-12-01	1301.4	1284.2	1261.6	1200
2024-11-01	1301.4	1284.2	1261.6	1200
2024-10-01	1301.4	1284.2	1261.6	1200
2024-09-01	1297.5	1276.6	1261.6	1200
2024-08-01	1297.5	1276.6	1261.6	1200
2024-07-01	1301.7	1277	1261.6	1200
2024-06-01	1266.6	1242.8	1252.6	1200
2024-08-01	1266.6	1242.8	1252.6	1200
2024-04-01	1266.6	1242.8	1252.6	1200
2024-03-01	1236.6	1242.8	1200	1200
2024-02-01	1236.6	1242.8	1200	1200
2024-01-01	1236.6	1242.8	1200	1200
2023-12-01	1236.6	1242.8	1200	1200
2023-11-01	1236.6	1242.8	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	Ekurhuleni Trial 4 2025 (E)	2025-09-21	2025-09-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Ekurhuleni North Schools Teams 2025 (U13 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
3	Kempton Park Team Clusters LS 2025 (U13)	2025-07-26	2025-07-26	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
4	South African Open 2025 (U14 Open)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
5	Ekurhuleni Trial 2 2025 (E)	2025-06-21	2025-06-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
6	Ekurhuleni North School District Finals 2025 (U13 Boys)	2025-06-14	2025-06-14	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
7	Chess Molecules Open Tournament 2025 (C)	2025-04-19	2025-04-19	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni Trial 4 2025 (E)	2025-09-21	2025-09-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Ekurhuleni North Schools Teams 2025 (U13 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
3	Kempton Park Team Clusters LS 2025 (U13)	2025-07-26	2025-07-26	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
4	South African Open 2025 (U14 Open)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
5	Ekurhuleni Trial 2 2025 (E)	2025-06-21	2025-06-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
6	Ekurhuleni North School District Finals 2025 (U13 Boys)	2025-06-14	2025-06-14	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
7	Chess Molecules Open Tournament 2025 (C)	2025-04-19	2025-04-19	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
8	Ekurhuleni North Schools Finals - Teams 2024 (U13 Open)	2024-08-03	2024-08-03	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
9	Ekurhuleni Trails 2 2024 (U14)	2024-07-27	2024-07-27	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
10	Chess Molecules Open Chess Tournament 2024 (Grade 5-7)	2024-06-15	2024-06-15	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
11	Ekurhuleni North Primary Schools District Individual Finals 2024 (U13 Boys)	2024-05-11	2024-05-11	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
12	Kempton Park Cluster Individuals 2024 (U13 Boys)	2024-03-02	2024-03-02	Rapid	Ekurhuleni (GE)	5	5	4	Yes	Analysis
13	Ekurhuleni-North Schools Teams 2022 (U11)	2022-08-06	2022-08-06	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
14	Ekurhuleni Trials 2 2019 (U8)	2019-04-27	2019-04-27	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

#	Games	Start				End
1	7	Tournament Ekurhuleni-North Schools Teams 2022				Tournament Kempton Park Cluster Individuals 2024
		date 2022-08-06	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Rapid	result 1
		Opponent Tsholobo, M (Mbali)				Opponent Wasson, L (Leonardo)
2	6	Tournament Ekurhuleni North School District Finals 2025				Tournament Ekurhuleni Trial 2 2025
		date 2025-06-14	rnd 1	type Standard	result 1	date 2025-06-21	rnd 1	type Standard	result 1
		Opponent Khalishwayo, X (Xolisani)				Opponent Pretorius, J (Judith)
3	4	Tournament Ekurhuleni North Primary Schools District Individual Finals 2024				Tournament Chess Molecules Open Chess Tournament 2024
		date 2024-05-11	rnd 3	type Standard	result 1	date 2024-06-15	rnd 1	type Rapid	result 1
		Opponent Nkosi, N (Nthando)				Opponent Blake, M (Marguerite)

#	Games	Start				End
1	7	Tournament Ekurhuleni North Schools Finals - Teams 2024				Tournament Ekurhuleni Trial 2 2025
		date 2024-08-03	rnd 5	type Standard	result 0.5	date 2025-06-21	rnd 1	type Standard	result 1
		Opponent Hex, K (Kyle)				Opponent Pretorius, J (Judith)
2	5	Tournament Ekurhuleni-North Schools Teams 2022				Tournament Ekurhuleni North Primary Schools District Individual Finals 2024
		date 2022-08-06	rnd 2	type Standard	result 1	date 2024-05-11	rnd 1	type Standard	result 1
		Opponent Tsholobo, M (Mbali)				Opponent Moffat, N (Nathan)
3	4	Tournament Ekurhuleni North Primary Schools District Individual Finals 2024				Tournament Ekurhuleni Trails 2 2024
		date 2024-05-11	rnd 3	type Standard	result 1	date 2024-07-27	rnd 1	type Standard	result 1
		Opponent Nkosi, N (Nthando)				Opponent Niebuhr, R (Rohan)

#	Games	Start				End
1	3	Tournament Chess Molecules Open Tournament 2025				Tournament Chess Molecules Open Tournament 2025
		date 2025-04-19	rnd 2	type Rapid	result 1	date 2025-04-19	rnd 4	type Rapid	result 1
		Opponent Franco, A (Alesio)				Opponent Green, C (Caleb)
2	3	Tournament Kempton Park Cluster Individuals 2024				Tournament Kempton Park Cluster Individuals 2024
		date 2024-03-02	rnd 1	type Rapid	result 1	date 2024-03-02	rnd 3	type Rapid	result 1
		Opponent Molokomme, M (Mukundi)				Opponent Wasson, L (Leonardo)
3	2	Tournament Kempton Park Cluster Individuals 2024				Tournament Chess Molecules Open Chess Tournament 2024
		date 2024-03-02	rnd 5	type Rapid	result 1	date 2024-06-15	rnd 1	type Rapid	result 1
		Opponent Zumbika, T (Tanaka)				Opponent Blake, M (Marguerite)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Ekurhuleni-North Schools Teams 2022				Tournament Kempton Park Cluster Individuals 2024
		date 2022-08-06	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Rapid	result 1
		Opponent Tsholobo, M (Mbali)				Opponent Wasson, L (Leonardo)
2	3	Tournament Chess Molecules Open Tournament 2025				Tournament Chess Molecules Open Tournament 2025
		date 2025-04-19	rnd 2	type Rapid	result 1	date 2025-04-19	rnd 4	type Rapid	result 1
		Opponent Franco, A (Alesio)				Opponent Green, C (Caleb)
3	3	Tournament Ekurhuleni Trails 2 2024				Tournament Ekurhuleni North Schools Finals - Teams 2024
		date 2024-07-27	rnd 5	type Standard	result 1	date 2024-08-03	rnd 2	type Standard	result 1
		Opponent Olivier, A (Anica)				Opponent Ngcongolo, T (Thamsanqa)

#	Games	Start				End
1	5	Tournament Ekurhuleni-North Schools Teams 2022				Tournament Ekurhuleni North Primary Schools District Individual Finals 2024
		date 2022-08-06	rnd 2	type Standard	result 1	date 2024-05-11	rnd 1	type Standard	result 1
		Opponent Tsholobo, M (Mbali)				Opponent Moffat, N (Nathan)
2	3	Tournament South African Open 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-07-05	rnd 5	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Bosch, S (Septimus Bowker)				Opponent Motloung, K (Kemoratile)
3	3	Tournament Ekurhuleni Trails 2 2024				Tournament Ekurhuleni North Schools Finals - Teams 2024
		date 2024-07-27	rnd 5	type Standard	result 1	date 2024-08-03	rnd 2	type Standard	result 1
		Opponent Olivier, A (Anica)				Opponent Ngcongolo, T (Thamsanqa)

#	Games	Start				End
1	3	Tournament Chess Molecules Open Tournament 2025				Tournament Chess Molecules Open Tournament 2025
		date 2025-04-19	rnd 2	type Rapid	result 1	date 2025-04-19	rnd 4	type Rapid	result 1
		Opponent Franco, A (Alesio)				Opponent Green, C (Caleb)
2	3	Tournament Kempton Park Cluster Individuals 2024				Tournament Kempton Park Cluster Individuals 2024
		date 2024-03-02	rnd 1	type Rapid	result 1	date 2024-03-02	rnd 3	type Rapid	result 1
		Opponent Molokomme, M (Mukundi)				Opponent Wasson, L (Leonardo)
3	2	Tournament Kempton Park Cluster Individuals 2024				Tournament Chess Molecules Open Chess Tournament 2024
		date 2024-03-02	rnd 5	type Rapid	result 1	date 2024-06-15	rnd 1	type Rapid	result 1
		Opponent Zumbika, T (Tanaka)				Opponent Blake, M (Marguerite)

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	Joubert ,D (Dawid)	3	1.5	0	1	0.5	0	2	1	0	0	0	0
1	Joubert ,D (Dawid)	3	1337.8	1337.8	1	1387.2	1337.8	2	1174.2	1337.8	0	0	0
2	Fox ,C (Carter)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Fox ,C (Carter)	2	1209	784	2	1233.2	784	0	0	0	0	0	0
3	Mafane ,B (Bontle)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Mafane ,B (Bontle)	2	1228.8	803.8	2	1214.3	803.8	0	0	0	0	0	0
4	Hex ,K (Kyle)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
4	Hex ,K (Kyle)	2	1429.4	1216.9	2	1426.4	1216.9	0	0	0	0	0	0
5	Ntombela ,K (Khanya)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Ntombela ,K (Khanya)	2	1489.2	1064.2	2	1484.9	1064.2	0	0	0	0	0	0
6	Bhomela ,O (Owethu)	2	2	425	2	2	425	0	0	0	0	0	0
6	Bhomela ,O (Owethu)	2	1300.9	1725.9	2	1268.2	1725.9	0	0	0	0	0	0
7	Mabena ,T (Themba)	2	1	0	2	1	0	0	0	0	0	0	0
7	Mabena ,T (Themba)	2	1272.2	1272.2	2	1283.3	1272.2	0	0	0	0	0	0
8	Pretorius ,J (Judith)	2	2	425	2	2	425	0	0	0	0	0	0
8	Pretorius ,J (Judith)	2	1217.2	1642.2	2	1210.4	1642.2	0	0	0	0	0	0
9	Motloung ,K (Kemoratile)	2	1	0	1	1	425	1	0	-425	0	0	0
9	Motloung ,K (Kemoratile)	2	1486.4	1486.4	1	1474.9	1911.4	1	1416.4	1061.4	0	0	0
10	Chisango ,R (Ryan)	2	1	0	1	1	425	1	0	-425	0	0	0
10	Chisango ,R (Ryan)	2	1205.5	1205.5	1	1171.8	1630.5	1	1230.8	780.5	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Terwin, J (Jordin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms