Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, T (Trevor Justus)

Chess SA id

1090101501

FIDE id

Date of birth

2009-11-28 (U18)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1078.3

Item	Main	Standard	Rapid	Blitz
Rating	1235.4	1225.6	1238.5	1200
Raw rating	1219.6	1206.8	1238.5	1200
Weighted rating	1235.4	1225.6	1235.9	1200
Weighted performance	1037	852.4	0	0
Floor	750.1	741	738.5	700
K-factor	36	36	36	36
Min/Max rating change allowed	161.3	164.2	157	165.8
Highest rating	1289.8 2018-05-01	1289.8 2018-05-01	1308.3 2024-03-01	1200 2018-10-01
Highest raw rating	1250.1 2024-10-01	1241 2024-10-01	1238.5 2024-06-01	1200 2024-02-01
Highest weighted rating	1250.1 2025-05-05	1241 2025-02-01	1234 2025-08-01	1200 2018-10-01
Highest weighted performance	1289.8 2018-05-01	1289.8 2018-05-01	1308.3 2024-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.1	-1.4	0	0
New rating	1234.4	1224.2	1238.5	1200
Analysis
Rating	1235.4	1225.6	1238.5	1200
Raw rating	1219.6	1206.8	1238.5	1200
Weighted rating	1235.4	1225.6	1235.9
Weighted performance	1037	852.4	0
K-factor	36	36	36	36
Floor	750.1	741	738.5	700
Max/Min rating change allowed	161.3	164.2	157	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	1219.6	1206.8	1238.5	1200
New weighted rating	1234.4	1224.2	1236.6	1200
New weighted performance	1036.6	852	0	0
Temp new rating	1234.4	1224.2	1238.5	1200
Temp new rating +/-	-1.1	-1.4	0	0
Final new rating +/-	-1.1	-1.4	0	0
New rating	1234.4	1224.2	1238.5	1200
New K-factor	36	36	36	36
New floor	750.1	741	738.5	700

Item	Main	Standard	Rapid
	0	0	0
	13	13	0
	13	3	10
	0	0	0
	0	0	0
	0	0	0
History	35	25	10

Games since
	Main 26	Standard 16		Rapid 10		Blitz 0
Gender	Male
Age group	U18
Region	Ekurhuleni (GE)
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	13	5	38.46	-98.1	1192.7	1094.6
Standard	13	5	38.46	-98.1	1192.7	1094.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	35	18	51.43	12.1	1199.5	1211.6
Standard	25	12	48	-17	1199	1182
Rapid	10	6	60	85	1200.7	1285.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1219.6	1206.8	1238.5	1200
2025-09-01	1219.6	1206.8	1238.5	1200
2025-08-01	1237.5	1228.6	1238.5	1200
2025-07-01	1236.9	1228.2	1238.5	1200
2025-06-01	1234.1	1225.1	1238.5	1200
2025-05-01	1236.3	1228.1	1238.5	1200
2025-04-01	1235.7	1227.8	1238.5	1200
2025-03-01	1235.1	1227.1	1238.5	1200
2025-02-01	1250.1	1241	1238.5	1200
2025-01-01	1250.1	1241	1238.5	1200
2024-12-01	1250.1	1241	1238.5	1200
2024-11-01	1250.1	1241	1238.5	1200
2024-10-01	1250.1	1241	1238.5	1200
2024-09-01	1236.4	1219.4	1238.5	1200
2024-08-01	1236.4	1219.4	1238.5	1200
2024-07-01	1236.4	1219.4	1238.5	1200
2024-06-01	1236.4	1219.4	1238.5	1200
2024-08-01	1227.9	1219.4	1223	1200
2024-04-01	1227.9	1219.4	1223	1200
2024-03-01	1216.7	1219.4	1200	1200
2024-02-01	1216.7	1219.4	1200	1200
2024-01-01	1216.7	1219.4	1200	1200
2023-12-01	1216.7	1219.4	1200	1200
2023-11-01	1216.7	1219.4	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 North Schools Teams 2025 (U17 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Benoni High School Cluster 2025 (U17)	2025-05-10	2025-05-10	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
3	Benoni High School Cluster 15Feb 2025 (U18 Boys)	2025-02-15	2025-02-15	Standard	Ekurhuleni (GE)	5	4	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni North Schools Teams 2025 (U17 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Benoni High School Cluster 2025 (U17)	2025-05-10	2025-05-10	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
3	Benoni High School Cluster 15Feb 2025 (U18 Boys)	2025-02-15	2025-02-15	Standard	Ekurhuleni (GE)	5	4	2	Yes	Analysis
4	Ekurhuleni North Schools Finals - Teams 2024 (U15 Open)	2024-08-03	2024-08-03	Standard	Ekurhuleni (GE)	5	3	2	Yes	Analysis
5	Benoni Cluster High Schools Teams 2024 (U15)	2024-05-11	2024-05-11	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis
6	Benoni High Schools Cluster Individuals 2024 (U15 Boys)	2024-03-16	2024-03-16	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis
7	Ekurhuleni North District Schools Final 2018 (U9)	2018-08-04	2018-08-04	Standard	Ekurhuleni (GE)	5	4	2	Yes	Analysis
8	Ekurhuleni North Schools Individuals 2018	2018-05-12	2018-05-12	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Ekurhuleni North District Schools Final 2018				Tournament Benoni High Schools Cluster Individuals 2024
		date 2018-08-04	rnd 4	type Standard	result 1	date 2024-03-16	rnd 1	type Rapid	result 1
		Opponent Viljoen, M (Megan)				Opponent Ugburo, B (Bemigho)
2	2	Tournament Benoni High School Cluster 15Feb 2025				Tournament Benoni High School Cluster 15Feb 2025
		date 2025-02-15	rnd 3	type Standard	result 1	date 2025-02-15	rnd 4	type Standard	result 1
		Opponent Le Roux, K (Keagan)				Opponent Makhaphela, K (Kholwani)
3	2	Tournament Benoni Cluster High Schools Teams 2024				Tournament Ekurhuleni North Schools Finals - Teams 2024
		date 2024-05-11	rnd 5	type Rapid	result 1	date 2024-08-03	rnd 1	type Standard	result 1
		Opponent Sebola, T (Tumisho)				Opponent Setati, M (Mosima)

#	Games	Start				End
1	3	Tournament Ekurhuleni North District Schools Final 2018				Tournament Ekurhuleni North Schools Finals - Teams 2024
		date 2018-08-04	rnd 4	type Standard	result 1	date 2024-08-03	rnd 1	type Standard	result 1
		Opponent Viljoen, M (Megan)				Opponent Setati, M (Mosima)
2	2	Tournament Benoni High School Cluster 15Feb 2025				Tournament Benoni High School Cluster 15Feb 2025
		date 2025-02-15	rnd 3	type Standard	result 1	date 2025-02-15	rnd 4	type Standard	result 1
		Opponent Le Roux, K (Keagan)				Opponent Makhaphela, K (Kholwani)
3	2	Tournament Ekurhuleni North Schools Individuals 2018				Tournament Ekurhuleni North Schools Individuals 2018
		date 2018-05-12	rnd 1	type Standard	result 1	date 2018-05-12	rnd 2	type Standard	result 1
		Opponent Mchaffie, S (Seth)				Opponent Mkubalo, O (Olwethu)

#	Games	Start				End
1	2	Tournament Benoni High Schools Cluster Individuals 2024				Tournament Benoni Cluster High Schools Teams 2024
		date 2024-03-16	rnd 5	type Rapid	result 1	date 2024-05-11	rnd 1	type Rapid	result 1
		Opponent Khalimashe, S (Siphesihle)				Opponent Wasserman, K (Kayleigh)
2	1	Tournament Benoni Cluster High Schools Teams 2024				Tournament Benoni Cluster High Schools Teams 2024
		date 2024-05-11	rnd 5	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Sebola, T (Tumisho)				Opponent Sebola, T (Tumisho)
3	1	Tournament Benoni Cluster High Schools Teams 2024				Tournament Benoni Cluster High Schools Teams 2024
		date 2024-05-11	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 3	type Rapid	result 1
		Opponent Soobramoney, S (Skyler)				Opponent Soobramoney, S (Skyler)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Ekurhuleni North District Schools Final 2018				Tournament Benoni High Schools Cluster Individuals 2024
		date 2018-08-04	rnd 4	type Standard	result 1	date 2024-03-16	rnd 1	type Rapid	result 1
		Opponent Viljoen, M (Megan)				Opponent Ugburo, B (Bemigho)
2	2	Tournament Benoni High School Cluster 15Feb 2025				Tournament Benoni High School Cluster 15Feb 2025
		date 2025-02-15	rnd 3	type Standard	result 1	date 2025-02-15	rnd 4	type Standard	result 1
		Opponent Le Roux, K (Keagan)				Opponent Makhaphela, K (Kholwani)
3	2	Tournament Benoni Cluster High Schools Teams 2024				Tournament Ekurhuleni North Schools Finals - Teams 2024
		date 2024-05-11	rnd 5	type Rapid	result 1	date 2024-08-03	rnd 1	type Standard	result 1
		Opponent Sebola, T (Tumisho)				Opponent Setati, M (Mosima)

#	Games	Start				End
1	3	Tournament Ekurhuleni North District Schools Final 2018				Tournament Ekurhuleni North Schools Finals - Teams 2024
		date 2018-08-04	rnd 4	type Standard	result 1	date 2024-08-03	rnd 1	type Standard	result 1
		Opponent Viljoen, M (Megan)				Opponent Setati, M (Mosima)
2	2	Tournament Benoni High School Cluster 15Feb 2025				Tournament Benoni High School Cluster 15Feb 2025
		date 2025-02-15	rnd 3	type Standard	result 1	date 2025-02-15	rnd 4	type Standard	result 1
		Opponent Le Roux, K (Keagan)				Opponent Makhaphela, K (Kholwani)
3	2	Tournament Ekurhuleni North Schools Individuals 2018				Tournament Ekurhuleni North Schools Individuals 2018
		date 2018-05-12	rnd 1	type Standard	result 1	date 2018-05-12	rnd 2	type Standard	result 1
		Opponent Mchaffie, S (Seth)				Opponent Mkubalo, O (Olwethu)

#	Games	Start				End
1	2	Tournament Benoni High Schools Cluster Individuals 2024				Tournament Benoni Cluster High Schools Teams 2024
		date 2024-03-16	rnd 5	type Rapid	result 1	date 2024-05-11	rnd 1	type Rapid	result 1
		Opponent Khalimashe, S (Siphesihle)				Opponent Wasserman, K (Kayleigh)
2	1	Tournament Benoni Cluster High Schools Teams 2024				Tournament Benoni Cluster High Schools Teams 2024
		date 2024-05-11	rnd 5	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Sebola, T (Tumisho)				Opponent Sebola, T (Tumisho)
3	1	Tournament Benoni Cluster High Schools Teams 2024				Tournament Benoni Cluster High Schools Teams 2024
		date 2024-05-11	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 3	type Rapid	result 1
		Opponent Soobramoney, S (Skyler)				Opponent Soobramoney, S (Skyler)

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	Ugburo ,B (Bemigho)	3	1	-141.7	1	0	-425	2	1	0	0	0	0
1	Ugburo ,B (Bemigho)	3	1197.1	1055.4	1	1210.6	772.1	2	1218.7	1197.1	0	0	0
2	Huebsch ,J (Jessica)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Huebsch ,J (Jessica)	2	1238.6	813.6	2	1245.3	813.6	0	0	0	0	0	0
3	Greenwood ,D (Derick)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	Greenwood ,D (Derick)	2	1243.2	818.2	1	1305.5	818.2	1	1200	818.2	0	0	0
4	Kuit ,L (Levi)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Kuit ,L (Levi)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Makghoto ,S (Sebikoane Tebatso)	1	1	425	1	1	425	0	0	0	0	0	0
5	Makghoto ,S (Sebikoane Tebatso)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Paver ,M (Michael)	1	1	425	1	1	425	0	0	0	0	0	0
6	Paver ,M (Michael)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Mambwe ,E (Elisha)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mambwe ,E (Elisha)	1	1202.7	777.7	1	1199.9	777.7	0	0	0	0	0	0
8	Mchaffie ,S (Seth)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mchaffie ,S (Seth)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Posthumus ,T (Tristann)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Posthumus ,T (Tristann)	1	1358.2	933.2	1	1304.7	933.2	0	0	0	0	0	0
10	Makhaphela ,K (Kholwani)	1	1	425	1	1	425	0	0	0	0	0	0
10	Makhaphela ,K (Kholwani)	1	1173.9	1598.9	1	1200	1598.9	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

Botha, T (Trevor Justus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms