Chess South Africa Ratings Database

PLAYER PAGE

Personal

Rowberry, T (Thomas)

Chess SA id

107080820

FIDE id

Date of birth

2007-01-30 (U20)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-06-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1173.3	1171	1200	1200
Raw rating	1171.6	1168.9	1200	1200
Weighted rating	1173.3	1171	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	172.7	173.3	165.8	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.3	0.4	0	0
New rating	1173.6	1171.4	1200	1200
Analysis
Rating	1173.3	1171	1200	1200
Raw rating	1171.6	1168.9	1200	1200
Weighted rating	1173.3	1171	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	172.7	173.3	165.8	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	1171.6	1168.9	1200	1200
New weighted rating	1173.6	1171.4	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1173.6	1171.4	1200	1200
Temp new rating +/-	0.3	0.4	0	0
Final new rating +/-	0.3	0.4	0	0
New rating	1173.6	1171.4	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	5	5
	10	10
	4	4
	0	0
	0	0
History	29	29

Games since
	Main 15	Standard 15		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	1.5	30	-170	1265	1095
Standard	5	1.5	30	-170	1265	1095
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	19	6	31.58	-156.6	1279.4	1122.8
Standard	19	6	31.58	-156.6	1279.4	1122.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1171.6	1168.9	1200	1200
2025-09-30	1171.6	1168.9	1200	1200
2025-09-01	1171.6	1168.9	1200	1200
2025-08-01	1171.6	1168.9	1200	1200
2025-07-01	1170.5	1167.6	1200	1200
2025-06-01	1184.2	1184.3	1200	1200
2025-05-01	1184.2	1184.3	1200	1200
2025-04-01	1184.2	1184.3	1200	1200
2025-03-01	1181.8	1181.2	1200	1200
2025-02-01	1181.8	1181.2	1200	1200
2025-01-01	1181.8	1181.2	1200	1200
2024-12-01	1181.8	1181.2	1200	1200
2024-11-01	1166.5	1163.6	1200	1200
2024-10-01	1166.5	1163.6	1200	1200
2024-09-01	1166.5	1163.6	1200	1200
2024-08-01	1166.5	1163.6	1200	1200
2024-07-01	1166.5	1163.6	1200	1200
2024-09-01	1166.5	1163.6	1200	1200
2024-05-01	1166.5	1163.6	1200	1200
2024-04-01	1142.9	1132	1200	1200
2024-03-01	1142.9	1132	1200	1200
2024-02-01	1142.9	1132	1200	1200
2024-01-01	1142.9	1132	1200	1200
2023-12-01	1142.9	1132	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	JCC Steyn City High Schools League 2025 (A)	2025-05-07	2025-06-09	Standard	Johannesburg Metro (GJM)	6	4	1	Yes	Analysis
2	JCC - Dainfern Chess League 2025 (A)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	1	0.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JCC Steyn City High Schools League 2025 (A)	2025-05-07	2025-06-09	Standard	Johannesburg Metro (GJM)	6	4	1	Yes	Analysis
2	JCC - Dainfern Chess League 2025 (A)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	1	0.5	Yes	Analysis
3	JCC St Peters High Schools League 2024 (A)	2024-09-09	2024-10-21	Standard	Johannesburg Metro (GJM)	6	4	2	Yes	Analysis
4	Dainfern College Chess League 2024 (A)	2024-01-29	2024-03-11	Standard	Johannesburg Metro (GJM)	6	6	2.5	Yes	Analysis
5	Dainfern College Chess League 2023 (A)	2023-01-30	2023-03-13	Standard	Johannesburg Metro (GJM)	6	4	0	Yes	Analysis

#	Games	Start				End
1	4	Tournament JCC St Peters High Schools League 2024				Tournament JCC Steyn City High Schools League 2025
		date 2024-10-07	rnd 4	type Standard	result 1	date 2025-05-07	rnd 1	type Standard	result 1
		Opponent Meyer, I (Imaan)				Opponent Bopape, T (Tumelo Thomas)
2	2	Tournament Dainfern College Chess League 2024				Tournament Dainfern College Chess League 2024
		date 2024-02-12	rnd 3	type Standard	result 1	date 2024-02-19	rnd 4	type Standard	result 0.5
		Opponent Mbokota, T (Tiyane)				Opponent Glass, A (Aharon)
3	1	Tournament Dainfern College Chess League 2024				Tournament Dainfern College Chess League 2024
		date 2024-03-11	rnd 6	type Standard	result 1	date 2024-03-11	rnd 6	type Standard	result 1
		Opponent Texeira-Dos Santos, Y (Yumina)				Opponent Texeira-Dos Santos, Y (Yumina)

#	Games	Start				End
1	4	Tournament JCC St Peters High Schools League 2024				Tournament JCC Steyn City High Schools League 2025
		date 2024-10-07	rnd 4	type Standard	result 1	date 2025-05-07	rnd 1	type Standard	result 1
		Opponent Meyer, I (Imaan)				Opponent Bopape, T (Tumelo Thomas)
2	2	Tournament Dainfern College Chess League 2024				Tournament Dainfern College Chess League 2024
		date 2024-02-12	rnd 3	type Standard	result 1	date 2024-02-19	rnd 4	type Standard	result 0.5
		Opponent Mbokota, T (Tiyane)				Opponent Glass, A (Aharon)
3	1	Tournament Dainfern College Chess League 2024				Tournament Dainfern College Chess League 2024
		date 2024-03-11	rnd 6	type Standard	result 1	date 2024-03-11	rnd 6	type Standard	result 1
		Opponent Texeira-Dos Santos, Y (Yumina)				Opponent Texeira-Dos Santos, Y (Yumina)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament JCC St Peters High Schools League 2024				Tournament JCC St Peters High Schools League 2024
		date 2024-10-07	rnd 4	type Standard	result 1	date 2024-10-21	rnd 6	type Standard	result 1
		Opponent Meyer, I (Imaan)				Opponent Singh, A (Arav)
2	1	Tournament JCC Steyn City High Schools League 2025				Tournament JCC Steyn City High Schools League 2025
		date 2025-05-07	rnd 1	type Standard	result 1	date 2025-05-07	rnd 1	type Standard	result 1
		Opponent Bopape, T (Tumelo Thomas)				Opponent Bopape, T (Tumelo Thomas)
3	1	Tournament Dainfern College Chess League 2024				Tournament Dainfern College Chess League 2024
		date 2024-03-11	rnd 6	type Standard	result 1	date 2024-03-11	rnd 6	type Standard	result 1
		Opponent Texeira-Dos Santos, Y (Yumina)				Opponent Texeira-Dos Santos, Y (Yumina)

#	Games	Start				End
1	2	Tournament JCC St Peters High Schools League 2024				Tournament JCC St Peters High Schools League 2024
		date 2024-10-07	rnd 4	type Standard	result 1	date 2024-10-21	rnd 6	type Standard	result 1
		Opponent Meyer, I (Imaan)				Opponent Singh, A (Arav)
2	1	Tournament JCC Steyn City High Schools League 2025				Tournament JCC Steyn City High Schools League 2025
		date 2025-05-07	rnd 1	type Standard	result 1	date 2025-05-07	rnd 1	type Standard	result 1
		Opponent Bopape, T (Tumelo Thomas)				Opponent Bopape, T (Tumelo Thomas)
3	1	Tournament Dainfern College Chess League 2024				Tournament Dainfern College Chess League 2024
		date 2024-03-11	rnd 6	type Standard	result 1	date 2024-03-11	rnd 6	type Standard	result 1
		Opponent Texeira-Dos Santos, Y (Yumina)				Opponent Texeira-Dos Santos, Y (Yumina)

No games found.

#	Games	Start				End

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	De Abreu ,P (Pedro)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	De Abreu ,P (Pedro)	2	1231.5	806.5	2	1238.5	806.5	0	0	0	0	0	0
2	Paiker ,J (Joey)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Paiker ,J (Joey)	2	1245.9	820.9	2	1232.6	820.9	0	0	0	0	0	0
3	Ramlall ,S (Sanjana)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Ramlall ,S (Sanjana)	2	1538.6	1113.6	2	1558.3	1113.6	0	0	0	0	0	0
4	Glass ,A (Aharon)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
4	Glass ,A (Aharon)	2	1411.9	1199.4	2	1415.3	1199.4	0	0	0	0	0	0
5	Mbokota ,T (Tiyane)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mbokota ,T (Tiyane)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Muroyiwa ,T (Takudzwa)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Muroyiwa ,T (Takudzwa)	1	1296.3	871.3	1	1285.7	871.3	0	0	0	0	0	0
7	Texeira-Dos Santos ,Y (Yumina)	1	1	425	1	1	425	0	0	0	0	0	0
7	Texeira-Dos Santos ,Y (Yumina)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Meyer ,I (Imaan)	1	1	425	1	1	425	0	0	0	0	0	0
8	Meyer ,I (Imaan)	1	1169.8	1594.8	1	1163.6	1594.8	0	0	0	0	0	0
9	Van Zyl ,L (Luke)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Van Zyl ,L (Luke)	1	1227.3	802.3	1	1226.7	802.3	0	0	0	0	0	0
10	Dowse ,D (Daniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Dowse ,D (Daniel)	1	1200	775	1	1200	775	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Rowberry, T (Thomas)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms