Chess South Africa Ratings Database

PLAYER PAGE

Personal

Tsai, R (Ray)

Chess SA id

109080845

FIDE id

Date of birth

2009-10-25 (U18)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-10

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1396.6	1362.3	1008.6	771
Raw rating	1396.6	1362.3	1008.6	771
Weighted rating	1370.2	1322.2	1001.3	771
Weighted performance	1233	1197.5	0	0
Floor	896.6	867.4	508.6	500
K-factor	36	36	40	40
Min/Max rating change allowed	125.3	131.6	217.8	305.5
Highest rating	1396.6 2025-06-01	1367.4 2020-02-01	1299.7 2023-10-01	1200 2018-02-01
Highest raw rating	1396.6 2025-06-01	1367.4 2020-02-01	1008.6 2024-03-01	771.8 2019-01-01
Highest weighted rating	1396.6 2022-01-01	1367.4 2022-01-01	1008.6 2024-11-01	771.8 2024-11-01
Highest weighted performance	1364.3 2019-07-01	1357.4 2019-07-01	1299.7 2023-10-01	1200 2018-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1396.6	1362.3	1008.6	771
Analysis
Rating	1396.6	1362.3	1008.6	771
Raw rating	1396.6	1362.3	1008.6	771
Weighted rating	1370.2	1322.2	1001.3
Weighted performance	1233	1197.5	0
K-factor	36	36	40	40
Floor	896.6	867.4	508.6	500
Max/Min rating change allowed	125.3	131.6	217.8	305.5
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	1396.6	1362.3	1008.6	771
New weighted rating	1372.9	1326.2	1004.2	771
New weighted performance	1232.5	1197	0	0
Temp new rating	1396.6	1362.3	1008.6	771
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1396.6	1362.3	1008.6	771
New K-factor	36	36	40	40
New floor	896.6	867.4	508.6	500

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	5	5	0	0
	19	9	10	0
	15	10	5	0
	5	5	0	0
	0	0	0	0
History	244	219	15	10

Games since
	Main 29	Standard 14		Rapid 15		Blitz 0
Gender	Male
Age group	U18
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	5	3.5	70	170	1425.8	1595.8
Standard	5	3.5	70	170	1425.8	1595.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	194	119	61.34	96.4	1149.6	1246
Standard	169	104.5	61.83	100.6	1128	1228.6
Rapid	15	9.5	63.33	113.3	1311.2	1424.5
Blitz	10	5	50	0	1273.3	1273.3

Date	Main	Standard	Rapid	Blitz
2025-09-30	1396.6	1362.3	1008.6	771
2025-09-01	1396.6	1362.3	1008.6	771
2025-08-01	1396.6	1362.3	1008.6	771
2025-07-01	1396.6	1362.3	1008.6	771
2025-06-01	1396.6	1362.3	1008.6	771
2025-05-01	1352.7	1298.8	1008.6	771
2025-04-01	1352.2	1298.7	1008.6	771
2025-03-01	1351.6	1298.7	1008.6	771
2025-02-01	1350.9	1298.6	1008.6	771
2025-01-01	1349.9	1297.7	1008.6	771
2024-12-01	1349.9	1297.7	1008.6	771
2024-11-01	1349.9	1297.7	1008.6	771
2024-10-01	1349.9	1297.7	1008.6	771
2024-09-01	1365.7	1304.5	1008.6	771
2024-08-01	1365.7	1304.5	1008.6	771
2024-07-01	1365.7	1304.5	1008.6	771
2024-06-01	1369.9	1296.9	1008.6	771
2024-08-01	1369.9	1296.9	1008.6	771
2024-04-01	1369.9	1296.9	1008.6	771
2024-03-01	1369.9	1296.9	1008.6	771
2024-02-01	1331	1296.9	789.8	771
2024-01-01	1331	1296.9	789.8	771
2023-12-01	1331	1296.9	789.8	771
2023-11-01	1331	1296.9	789.8	771

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	JMC Crawford Sandton 2025 (C)	2025-05-10	2025-05-10	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JMC Crawford Sandton 2025 (C)	2025-05-10	2025-05-10	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
2	JCC Khelo India 1st Annual Chess Tournament 2024 (B)	2024-08-31	2024-08-31	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
3	Second Knight Riders Juniors Open Chess Tournament 2024 (A+B)	2024-06-08	2024-06-08	Standard	Johannesburg Metro (GJM)	5	4	1.5	Yes	Analysis
4	Gear Up Mzansi Rapid 2024 (Intermediate)	2024-02-17	2024-02-17	Rapid	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
5	Chess Power House 1st Rapid 2024 (A)	2024-02-24	2024-02-24	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
6	Mzansi Bryanston Rapid 2023 (Intermediate)	2023-10-07	2023-10-07	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
7	Chess Power House 2023 (B)	2023-08-19	2023-08-19	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
8	JMC 1 St Peters 2023 (B)	2023-03-18	2023-03-18	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
9	JNW Helpmekaar 2022 (Challengers)	2022-07-09	2022-07-09	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
10	2019 South African Junior Team Championships (U12B)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	5.5	Yes	Analysis
11	JNW Club - Maragon Open 2019 (C)	2019-08-03	2019-08-03	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
12	JHB Metro Closed 2019 (U12)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	6	4	Yes	Analysis
13	Boksburg Chess Club Open 2019 (C)	2019-07-13	2019-07-13	Standard	Ekurhuleni (GE)	5	5	4.5	Yes	Analysis
14	GoForChess Junior Chess Championships 2019 (U12)	2019-06-09	2019-06-09	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
15	Fonties Challange 2019 (U11)	2019-06-08	2019-06-08	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
16	2019 SWVG Arnold Classic (Blitz Open)	2019-05-19	2019-05-19	Blitz	Tshwane (GTP)	10	3	0	Yes	Analysis
17	JNW Club - Bryanston Open 2 2019 (C)	2019-05-11	2019-05-11	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
18	JNW Club - Charterhouse Open 2019 (C)	2019-04-13	2019-04-13	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
19	JNW Club - Trinityhouse Randpark Ridge Open 2019 (C)	2019-03-09	2019-03-09	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
20	2019 Constantia Park Open (C)	2019-02-09	2019-02-09	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
21	JNW Club - Trinityhouse Little Falls Open 2019 (C)	2019-02-23	2019-02-23	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
22	JNW Club - Bryanston Open 1 2019 (C)	2019-01-26	2019-01-26	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
23	South African Junior Blitz 2018 (U10)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	7	5	Yes	Analysis
24	South African Junior Team Championships 2018 (U10A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
25	Inter Region GE vs JHB Metro 2018 (U10B)	2018-10-06	2018-10-06	Standard	Ekurhuleni (GE)	5	5	5	Yes	Analysis
26	GoForChess Saheti Junior Chess Championships 2018 (U12-U16)	2018-09-22	2018-09-22	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
27	GoForChess Curro Online Rated 2018 (U8+U10)	2018-09-02	2018-09-02	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
28	JNW Club - Muldersdrif Open 2018 (C)	2018-08-18	2018-08-18	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
29	Chessnuts - Under 1000 Ratings Tournament 2018 (A)	2018-07-21	2018-07-21	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
30	JHB Metro Junior Closed 2018 (U10)	2018-07-28	2018-07-29	Standard	Johannesburg Metro (GJM)	6	6	4	Yes	Analysis
31	GoForChess Grayston Junior Chess Championship 2018 (U10)	2018-06-10	2018-06-10	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
32	British International Prep/Chessnuts 2018 (U10)	2018-06-23	2018-06-23	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
33	JNW Club - Bryanston Open 2 2018 (U10)	2018-05-05	2018-05-05	Standard	Johannesburg Metro (GJM)	5	4	3	Yes	Analysis
34	Chessnuts - Charterhouse Open 2018 (C)	2018-05-12	2018-05-12	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
35	JNW Club - Linden Open 2018 (U10)	2018-04-14	2018-04-14	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
36	Fonties Challenge 2018 (U9)	2018-04-21	2018-04-21	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
37	JNW Club - Trinityhouse Randpark Ridge Open 2018 (U10)	2018-03-24	2018-03-24	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
38	JNW Club - Bryanston Open 2018 (U10)	2018-01-27	2018-01-27	Standard	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis

#	Games	Start				End
1	9	Tournament GoForChess Junior Chess Championships 2019				Tournament JHB Metro Closed 2019
		date 2019-06-09	rnd 3	type Standard	result 1	date 2019-07-27	rnd 1	type Standard	result 1
		Opponent Lemeke, T (Thuo)				Opponent Barradas, K (Keanu)
2	9	Tournament British International Prep/Chessnuts 2018				Tournament JHB Metro Junior Closed 2018
		date 2018-06-23	rnd 4	type Standard	result 1	date 2018-07-28	rnd 2	type Standard	result 1
		Opponent Mitchell, D (Dylan)				Opponent Van Der Westhuizen, W (Wihan)
3	7	Tournament JNW Club - Maragon Open 2019				Tournament 2019 South African Junior Team Championships
		date 2019-08-03	rnd 5	type Standard	result 1	date 2020-01-07	rnd 6	type Standard	result 0.5
		Opponent Chinoruma, K (Kupa)				Opponent Rosenberg, W (Wagheed)

#	Games	Start				End
1	9	Tournament GoForChess Junior Chess Championships 2019				Tournament JHB Metro Closed 2019
		date 2019-06-09	rnd 3	type Standard	result 1	date 2019-07-27	rnd 1	type Standard	result 1
		Opponent Lemeke, T (Thuo)				Opponent Barradas, K (Keanu)
2	9	Tournament British International Prep/Chessnuts 2018				Tournament JHB Metro Junior Closed 2018
		date 2018-06-23	rnd 4	type Standard	result 1	date 2018-07-28	rnd 2	type Standard	result 1
		Opponent Mitchell, D (Dylan)				Opponent Van Der Westhuizen, W (Wihan)
3	7	Tournament JNW Club - Maragon Open 2019				Tournament 2019 South African Junior Team Championships
		date 2019-08-03	rnd 5	type Standard	result 1	date 2020-01-07	rnd 6	type Standard	result 0.5
		Opponent Chinoruma, K (Kupa)				Opponent Rosenberg, W (Wagheed)

#	Games	Start				End
1	4	Tournament Gear Up Mzansi Rapid 2024				Tournament Gear Up Mzansi Rapid 2024
		date 2024-02-17	rnd 2	type Rapid	result 1	date 2024-02-17	rnd 5	type Rapid	result 1
		Opponent Gemmell, Z (Zac)				Opponent Maharaj, A (Arya)
2	3	Tournament Chess Power House 1st Rapid 2024				Tournament Chess Power House 1st Rapid 2024
		date 2024-02-24	rnd 2	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Kreusch, O (Oscar)				Opponent Ngwangwa, N (Nonhlanhla)
3	1	Tournament Mzansi Bryanston Rapid 2023				Tournament Mzansi Bryanston Rapid 2023
		date 2023-10-07	rnd 5	type Rapid	result 1	date 2023-10-07	rnd 5	type Rapid	result 1
		Opponent Maharaj, A (Aditi)				Opponent Maharaj, A (Aditi)

#	Games	Start				End
1	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 6	type Blitz	result 1	date 2018-12-19	rnd 7	type Blitz	result 1
		Opponent Nortje, D (Dell-Maree)				Opponent Mafuya, X (Xabiso)
2	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 3	type Blitz	result 1	date 2018-12-19	rnd 4	type Blitz	result 1
		Opponent Sefanyetso, K (Kagiso)				Opponent Muller, C (Christiaan)
3	1	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 1	type Blitz	result 1	date 2018-12-19	rnd 1	type Blitz	result 1
		Opponent Vlok, J (Jan)				Opponent Vlok, J (Jan)

#	Games	Start				End
1	6	Tournament JNW Club - Maragon Open 2019				Tournament 2019 South African Junior Team Championships
		date 2019-08-03	rnd 5	type Standard	result 1	date 2020-01-06	rnd 5	type Standard	result 1
		Opponent Chinoruma, K (Kupa)				Opponent Letupu, L (Lemogang)
2	5	Tournament GoForChess Junior Chess Championships 2019				Tournament Boksburg Chess Club Open 2019
		date 2019-06-09	rnd 5	type Standard	result 1	date 2019-07-13	rnd 4	type Standard	result 1
		Opponent Sommer, D (Dorian)				Opponent Gruenenfelder, S (Stiaan)
3	5	Tournament Inter Region GE vs JHB Metro 2018				Tournament Inter Region GE vs JHB Metro 2018
		date 2018-10-06	rnd 1	type Standard	result 1	date 2018-10-06	rnd 5	type Standard	result 1
		Opponent Liebenberg, M (Michael)				Opponent Bothma, J (Jaculene)

#	Games	Start				End
1	6	Tournament JNW Club - Maragon Open 2019				Tournament 2019 South African Junior Team Championships
		date 2019-08-03	rnd 5	type Standard	result 1	date 2020-01-06	rnd 5	type Standard	result 1
		Opponent Chinoruma, K (Kupa)				Opponent Letupu, L (Lemogang)
2	5	Tournament GoForChess Junior Chess Championships 2019				Tournament Boksburg Chess Club Open 2019
		date 2019-06-09	rnd 5	type Standard	result 1	date 2019-07-13	rnd 4	type Standard	result 1
		Opponent Sommer, D (Dorian)				Opponent Gruenenfelder, S (Stiaan)
3	5	Tournament Inter Region GE vs JHB Metro 2018				Tournament Inter Region GE vs JHB Metro 2018
		date 2018-10-06	rnd 1	type Standard	result 1	date 2018-10-06	rnd 5	type Standard	result 1
		Opponent Liebenberg, M (Michael)				Opponent Bothma, J (Jaculene)

#	Games	Start				End
1	3	Tournament Chess Power House 1st Rapid 2024				Tournament Chess Power House 1st Rapid 2024
		date 2024-02-24	rnd 2	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Kreusch, O (Oscar)				Opponent Ngwangwa, N (Nonhlanhla)
2	2	Tournament Gear Up Mzansi Rapid 2024				Tournament Gear Up Mzansi Rapid 2024
		date 2024-02-17	rnd 2	type Rapid	result 1	date 2024-02-17	rnd 3	type Rapid	result 1
		Opponent Gemmell, Z (Zac)				Opponent Rademeyer, F (Frederick Paul)
3	1	Tournament Gear Up Mzansi Rapid 2024				Tournament Gear Up Mzansi Rapid 2024
		date 2024-02-17	rnd 5	type Rapid	result 1	date 2024-02-17	rnd 5	type Rapid	result 1
		Opponent Maharaj, A (Arya)				Opponent Maharaj, A (Arya)

#	Games	Start				End
1	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 6	type Blitz	result 1	date 2018-12-19	rnd 7	type Blitz	result 1
		Opponent Nortje, D (Dell-Maree)				Opponent Mafuya, X (Xabiso)
2	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 3	type Blitz	result 1	date 2018-12-19	rnd 4	type Blitz	result 1
		Opponent Sefanyetso, K (Kagiso)				Opponent Muller, C (Christiaan)
3	1	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 1	type Blitz	result 1	date 2018-12-19	rnd 1	type Blitz	result 1
		Opponent Vlok, J (Jan)				Opponent Vlok, J (Jan)

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	Ramlall ,S (Sanjana)	7	1.5	-242.9	7	1.5	-242.9	0	0	0	0	0	0
1	Ramlall ,S (Sanjana)	7	1124.4	881.6	7	1126.5	881.6	0	0	0	0	0	0
2	Voigt ,D (Daniel)	3	0	-425	3	0	-425	0	0	0	0	0	0
2	Voigt ,D (Daniel)	3	1105.8	680.8	3	1095.4	680.8	0	0	0	0	0	0
3	Van Stryp ,O (Ockert)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
3	Van Stryp ,O (Ockert)	3	1070.5	787.2	3	1075	787.2	0	0	0	0	0	0
4	Moonsammy ,E (Ethan)	3	3	425	3	3	425	0	0	0	0	0	0
4	Moonsammy ,E (Ethan)	3	1246.3	1671.3	3	1240.8	1671.3	0	0	0	0	0	0
5	Naidoo ,K (Kirthan)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
5	Naidoo ,K (Kirthan)	3	1134.7	993	3	1129.1	993	0	0	0	0	0	0
6	Steyn ,T (Tjaart)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
6	Steyn ,T (Tjaart)	3	1195.2	1336.8	3	1171.1	1336.8	0	0	0	0	0	0
7	Levitan ,C (Caleb)	3	0	-425	2	0	-425	0	0	0	1	0	-425
7	Levitan ,C (Caleb)	3	1333.5	908.5	2	1313.7	908.5	0	0	0	1	1083.6	908.5
8	Van Heerden ,F (Freddie)	2	2	425	2	2	425	0	0	0	0	0	0
8	Van Heerden ,F (Freddie)	2	979.8	1404.8	2	970	1404.8	0	0	0	0	0	0
9	Sandenbergh ,RF (Francois)	2	2	425	2	2	425	0	0	0	0	0	0
9	Sandenbergh ,RF (Francois)	2	555	980	2	560.4	980	0	0	0	0	0	0
10	Barnes ,J (Jock)	2	2	425	2	2	425	0	0	0	0	0	0
10	Barnes ,J (Jock)	2	1093.8	1518.8	2	1086.7	1518.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Tsai, R (Ray)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms