Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, E (Erasmus Albertus)

Chess SA id

1170145156

FIDE id

Date of birth

2017-06-24 (U10)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-08-09

Personal details last changed

1900-01-01

Junior GPX Games

54.3

Junior GPX Points

1166.9

Item	Main	Standard	Rapid	Blitz
Rating	1215	1206.5	1187.2	1200
Raw rating	1206.4	1180.5	1187.2	1200
Weighted rating	1215	1206.5	1164.4	1200
Weighted performance	1131.2	1087.3	0	0
Floor	917.6	913.4	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	164.3	170.5	168.9	165.8
Highest rating	1417.6 2023-07-01	1413.4 2023-07-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1417.6 2023-07-01	1413.4 2023-07-01	1200 2019-12-01	1200 2024-02-01
Highest weighted rating	1417.6 2023-12-01	1413.4 2023-12-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1350.7 2023-07-01	1346.4 2023-07-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.5	-2.1	0	0
New rating	1214.5	1204.5	1187.2	1200
Analysis
Rating	1215	1206.5	1187.2	1200
Raw rating	1206.4	1180.5	1187.2	1200
Weighted rating	1215	1206.5	1164.4
Weighted performance	1131.2	1087.3	0
K-factor	32	32	36	36
Floor	917.6	913.4	700	700
Max/Min rating change allowed	164.3	170.5	168.9	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	1206.4	1180.5	1187.2	1200
New weighted rating	1214.5	1204.5	1166.5	1200
New weighted performance	1130.8	1086.9	0	0
Temp new rating	1214.5	1204.5	1187.2	1200
Temp new rating +/-	-0.5	-2.1	0	0
Final new rating +/-	-0.5	-2.1	0	0
New rating	1214.5	1204.5	1187.2	1200
New K-factor	32	32	36	36
New floor	917.6	913.4	700	700

Item	Main	Standard	Rapid
	0	0	0
	38	33	5
	88	83	5
	79	73	6
	9	9	0
	0	0	0
History	214	198	16

Games since
	Main 146	Standard 136		Rapid 10		Blitz 0
Gender	Male
Age group	U10
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	3930		219		177
Male	2975		176		140
U10	360		33		29
U10 Male	276		27		23
Standard
	RSA		Province		Region
Overall	3875		260		192
Male	2920		209		152
U10	360		33		29
U10 Male	280		27		23
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	38	14	36.84	-111.8	1283.2	1171.4
Standard	33	11	33.33	-141.7	1289	1147.3
Rapid	5	3	60	85	1245.2	1330.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	214	100	46.73	-27.8	1225.5	1197.7
Standard	198	93	46.97	-25.8	1223.7	1198
Rapid	16	7	43.75	-53.1	1246.9	1193.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1206.4	1180.5	1187.2	1200
2025-09-01	1206.4	1180.5	1187.2	1200
2025-08-01	1231.9	1213.1	1187.2	1200
2025-07-01	1215.9	1213.1	1159.1	1200
2025-06-01	1215.9	1213.1	1159.1	1200
2025-05-01	1215.5	1213	1159.1	1200
2025-04-01	1250.8	1255	1159.1	1200
2025-03-01	1214.7	1211.7	1159.1	1200
2025-02-01	1226.2	1222.6	1159.1	1200
2025-01-01	1226.2	1222.6	1153.2	1200
2024-12-01	1233	1228.4	1153.2	1200
2024-11-01	1233	1228.4	1153.2	1200
2024-10-01	1229.5	1217	1153.2	1200
2024-09-01	1188	1173.5	1153.2	1200
2024-08-01	1148.6	1139.9	1160	1200
2024-07-01	1188.7	1188.5	1160	1200
2024-06-01	1159.2	1158.9	1160	1200
2024-08-01	1283.2	1281.6	1160	1200
2024-04-01	1168.8	1158.1	1160	1200
2024-03-01	1188.2	1181.8	1160	1200
2024-02-01	1199.1	1194	1160	1200
2024-01-01	1198	1195.3	1160	1200
2023-12-01	1198	1195.3	1160	1200
2023-11-01	1265.5	1285.8	1160	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	Bojanala's Circuit Championships 3 of 4 2025 (U10)	2025-08-09	2025-08-09	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
2	Bojanala's Clash Of Schools -Primary Schools 2025 (U9)	2025-07-26	2025-07-26	Rapid	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
3	South African Junior Closed Chess Championships 2025 (U8 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	2	Yes	Analysis
4	Bojanala's Waterkloof - The Superior One 2025 (Center Pawns)	2025-03-15	2025-03-15	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
5	Bojanala Circuit Championships 1 of 4 2025 (U10)	2025-03-01	2025-03-01	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
6	Bojanala's Battle In The Kloof 2025 (Center Pawns)	2025-02-15	2025-02-15	Standard	Bojanala Platina (NBR)	5	4	1	Yes	Analysis
7	Bojanala Closed Chess Championships 2025 (U8)	2025-01-31	2025-02-02	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Bojanala's Circuit Championships 3 of 4 2025 (U10)	2025-08-09	2025-08-09	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
2	Bojanala's Clash Of Schools -Primary Schools 2025 (U9)	2025-07-26	2025-07-26	Rapid	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
3	South African Junior Closed Chess Championships 2025 (U8 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	2	Yes	Analysis
4	Bojanala's Waterkloof - The Superior One 2025 (Center Pawns)	2025-03-15	2025-03-15	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
5	Bojanala Circuit Championships 1 of 4 2025 (U10)	2025-03-01	2025-03-01	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
6	Bojanala's Battle In The Kloof 2025 (Center Pawns)	2025-02-15	2025-02-15	Standard	Bojanala Platina (NBR)	5	4	1	Yes	Analysis
7	Bojanala Closed Chess Championships 2025 (U8)	2025-01-31	2025-02-02	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
8	Mzansi Interprovincial Youth Chess Championships 2024 (U8 Open Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	3	Yes	Analysis
9	Bojanala's Merry Chess-Mas 2024 (Big Pawns)	2024-12-07	2024-12-07	Standard	Bojanala Platina (NBR)	6	6	3	Yes	Analysis
10	Bojanala's Circuit Championships 4 of 4 204 (U8)	2024-10-12	2024-10-12	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
11	Bojanala's Battle In The Kloof 2024 (Big Pawns)	2024-09-21	2024-09-21	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
12	Bojanala Circuit Championships 3 of 4 2024 (U8)	2024-09-14	2024-09-14	Standard	Bojanala Platina (NBR)	5	5	3.5	Yes	Analysis
13	Bojanala's FIDE In The Sparkling Waters 2024 (Young Junior Champs)	2024-08-17	2024-08-17	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
14	Bojanala's Kings & Queens Rapid and Doubles 2024 (Center Pawns)	2024-08-10	2024-08-10	Rapid	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
15	Incognito Invitational 2024 (B)	2024-07-21	2024-07-21	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
16	Bojanala's Clash Of Schools 2024 (U9)	2024-07-20	2024-07-20	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
17	Bojanala Circuit Championship 2 of 4 2024 (U8)	2024-06-15	2024-06-15	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
18	South African Junior Closed Chess Championship 2024 (U8 Open)	2024-04-27	2024-05-01	Standard	Ekurhuleni (GE)	9	9	0	Yes	Analysis
19	Bojanala Olienpark's One For The Ages 2024 (Big Pawns)	2024-04-20	2024-04-20	Standard	Bojanala Platina (NBR)	5	5	3.5	Yes	Analysis
20	Bojanala's Rating Express 2024 (Big Pawns)	2024-04-06	2024-04-06	Standard	Bojanala Platina (NBR)	7	6	4	Yes	Analysis
21	Bojanala Silwerrand's Rating Implosion 2024 (Center Pawns)	2024-03-16	2024-03-16	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
22	Bojanala Closed Chess Championships Finals 2024 (U8)	2024-02-09	2024-02-11	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
23	Bojanala Closed Chess Championships Stage 1 2024 (U8)	2024-01-27	2024-01-27	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
24	2023 Cross Border Chess Championships Gaborone vs Bojanala	2023-12-14	2023-12-14	Standard	Botswana (BOT)	9	8	2	Yes	Analysis
25	Bojanala's Merry ChessMas 2023 (Little Pawns)	2023-12-09	2023-12-09	Standard	Bojanala Platina (NBR)	5	4	3	Yes	Analysis
26	West Rand vs Bojanala Inter-Regional Championships 2023 (U8)	2023-10-12	2023-10-12	Standard	West Rand (GWR)	8	8	4.5	Yes	Analysis
27	Bojanala's Battle Of Mount Cambridge 2023 (Little Pawns)	2023-09-16	2023-09-16	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
28	Bojanala's Spring Cleaning 2023 (Litle Pawns)	2023-08-26	2023-08-26	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
29	Bojanala's Rosewood 2023 (Big Pawns)	2023-08-12	2023-08-12	Standard	Bojanala Platina (NBR)	7	6	0	Yes	Analysis
30	Bojanala School League 2023 (U7)	2023-07-18	2023-08-14	Rapid	Bojanala Platina (NBR)	6	6	2	Yes	Analysis
31	Bojanala's FIDE in the Sparkling Waters 2023 (Junior)	2023-07-29	2023-07-29	Standard	Bojanala Platina (NBR)	6	6	2.5	Yes	Analysis
32	Bojanala's Post-Exams 2023 (U6)	2023-07-24	2023-07-24	Standard	Bojanala Platina (NBR)	5	5	5	Yes	Analysis
33	Grenswag's Community Battle 2023 (U8)	2023-04-22	2023-04-22	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
34	Silver Lakes Open Chess Tournament (F)	2023-04-15	2023-04-15	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
35	Nories Make It Happen 2023 (U6)	2023-03-04	2023-03-04	Standard	Bojanala Platina (NBR)	6	6	6	Yes	Analysis
36	One For The Ages 2023 (U6)	2023-02-18	2023-02-18	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
37	Harties Wolf Pack 2023 (U8)	2023-01-21	2023-01-21	Standard	Bojanala Platina (NBR)	5	5	0	Yes	Analysis
38	Lebone II - Day of The Blue Army 2022 (U8)	2022-09-03	2022-09-03	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
39	Bojanala Chess Federation Wildcards 2022 (U8)	2022-08-20	2022-08-20	Standard	Bojanala Platina (NBR)	5	4	0	Yes	Analysis

#	Games	Start				End
1	12	Tournament One For The Ages 2023				Tournament Silver Lakes Open Chess Tournament
		date 2023-02-18	rnd 1	type Standard	result 1	date 2023-04-15	rnd 1	type Standard	result 1
		Opponent Korope, P (Phelo)				Opponent Kwint, S (Samuel)
2	6	Tournament Bojanala School League 2023				Tournament Bojanala's Post-Exams 2023
		date 2023-07-18	rnd 3	type Rapid	result 1	date 2023-07-24	rnd 5	type Standard	result 1
		Opponent Jonas, M (Minenhle)				Opponent Britz, O (Olivia)
3	5	Tournament Bojanala Circuit Championships 3 of 4 2024				Tournament Bojanala's Battle In The Kloof 2024
		date 2024-09-14	rnd 3	type Standard	result 1	date 2024-09-21	rnd 2	type Standard	result 1
		Opponent Schoeler, AC (Adriaan Christopher)				Opponent Mofokeng, K (Khotso)

#	Games	Start				End
1	12	Tournament One For The Ages 2023				Tournament Silver Lakes Open Chess Tournament
		date 2023-02-18	rnd 1	type Standard	result 1	date 2023-04-15	rnd 1	type Standard	result 1
		Opponent Korope, P (Phelo)				Opponent Kwint, S (Samuel)
2	7	Tournament Grenswag's Community Battle 2023				Tournament Bojanala's Post-Exams 2023
		date 2023-04-22	rnd 4	type Standard	result 1	date 2023-07-24	rnd 5	type Standard	result 1
		Opponent Pelser, L (Leja)				Opponent Britz, O (Olivia)
3	5	Tournament Bojanala Circuit Championships 3 of 4 2024				Tournament Bojanala's Battle In The Kloof 2024
		date 2024-09-14	rnd 3	type Standard	result 1	date 2024-09-21	rnd 2	type Standard	result 1
		Opponent Schoeler, AC (Adriaan Christopher)				Opponent Mofokeng, K (Khotso)

#	Games	Start				End
1	3	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 5	type Rapid	result 1
		Opponent Neumeyer, J (Jordan)				Opponent Roestoff, K (Kamohelo)
2	3	Tournament Bojanala School League 2023				Tournament Bojanala's Kings & Queens Rapid and Doubles 2024
		date 2023-08-14	rnd 6	type Rapid	result 1	date 2024-08-10	rnd 2	type Rapid	result 1
		Opponent Jonas, M (Minenhle)				Opponent Pretorius, M (Marius)
3	1	Tournament Bojanala School League 2023				Tournament Bojanala School League 2023
		date 2023-07-18	rnd 3	type Rapid	result 1	date 2023-07-18	rnd 3	type Rapid	result 1
		Opponent Jonas, M (Minenhle)				Opponent Jonas, M (Minenhle)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Nories Make It Happen 2023				Tournament Silver Lakes Open Chess Tournament
		date 2023-03-04	rnd 1	type Standard	result 1	date 2023-04-15	rnd 1	type Standard	result 1
		Opponent Mabugu, R (Refilwe)				Opponent Kwint, S (Samuel)
2	6	Tournament Bojanala School League 2023				Tournament Bojanala's Post-Exams 2023
		date 2023-07-18	rnd 3	type Rapid	result 1	date 2023-07-24	rnd 5	type Standard	result 1
		Opponent Jonas, M (Minenhle)				Opponent Britz, O (Olivia)
3	5	Tournament Bojanala Circuit Championships 3 of 4 2024				Tournament Bojanala's Battle In The Kloof 2024
		date 2024-09-14	rnd 3	type Standard	result 1	date 2024-09-21	rnd 2	type Standard	result 1
		Opponent Schoeler, AC (Adriaan Christopher)				Opponent Mofokeng, K (Khotso)

#	Games	Start				End
1	7	Tournament Grenswag's Community Battle 2023				Tournament Bojanala's Post-Exams 2023
		date 2023-04-22	rnd 4	type Standard	result 1	date 2023-07-24	rnd 5	type Standard	result 1
		Opponent Pelser, L (Leja)				Opponent Britz, O (Olivia)
2	7	Tournament Nories Make It Happen 2023				Tournament Silver Lakes Open Chess Tournament
		date 2023-03-04	rnd 1	type Standard	result 1	date 2023-04-15	rnd 1	type Standard	result 1
		Opponent Mabugu, R (Refilwe)				Opponent Kwint, S (Samuel)
3	5	Tournament Bojanala Circuit Championships 3 of 4 2024				Tournament Bojanala's Battle In The Kloof 2024
		date 2024-09-14	rnd 3	type Standard	result 1	date 2024-09-21	rnd 2	type Standard	result 1
		Opponent Schoeler, AC (Adriaan Christopher)				Opponent Mofokeng, K (Khotso)

#	Games	Start				End
1	3	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 5	type Rapid	result 1
		Opponent Neumeyer, J (Jordan)				Opponent Roestoff, K (Kamohelo)
2	3	Tournament Bojanala School League 2023				Tournament Bojanala's Kings & Queens Rapid and Doubles 2024
		date 2023-08-14	rnd 6	type Rapid	result 1	date 2024-08-10	rnd 2	type Rapid	result 1
		Opponent Jonas, M (Minenhle)				Opponent Pretorius, M (Marius)
3	1	Tournament Bojanala School League 2023				Tournament Bojanala School League 2023
		date 2023-07-18	rnd 3	type Rapid	result 1	date 2023-07-18	rnd 3	type Rapid	result 1
		Opponent Jonas, M (Minenhle)				Opponent Jonas, M (Minenhle)

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	Mabugu ,R (Refilwe)	13	12	359.6	13	12	359.6	0	0	0	0	0	0
1	Mabugu ,R (Refilwe)	13	1169.2	1528.8	13	1160.3	1528.8	0	0	0	0	0	0
2	Kgame ,K (Kgosi Otshepeng)	8	6.5	265.6	8	6.5	265.6	0	0	0	0	0	0
2	Kgame ,K (Kgosi Otshepeng)	8	1140.9	1406.5	8	1138.1	1406.5	0	0	0	0	0	0
3	Diphoko ,P (Pelonomi)	7	4	60.7	7	4	60.7	0	0	0	0	0	0
3	Diphoko ,P (Pelonomi)	7	1225	1285.7	7	1201.2	1285.7	0	0	0	0	0	0
4	Kotsokoane ,R (Reatlegile)	7	7	425	7	7	425	0	0	0	0	0	0
4	Kotsokoane ,R (Reatlegile)	7	1063.5	1488.5	7	1060.7	1488.5	0	0	0	0	0	0
5	Kruger ,T (Thinus Pieter)	7	0	-425	6	0	-425	1	0	-425	0	0	0
5	Kruger ,T (Thinus Pieter)	7	1385.2	960.2	6	1396.4	960.2	1	1170.4	960.2	0	0	0
6	Xhalabile ,L (Lonwabo)	6	2.5	-70.8	6	2.5	-70.8	0	0	0	0	0	0
6	Xhalabile ,L (Lonwabo)	6	1236.8	1165.9	6	1236.7	1165.9	0	0	0	0	0	0
7	Mofokeng ,K (Khotso)	5	1	-255	5	1	-255	0	0	0	0	0	0
7	Mofokeng ,K (Khotso)	5	1351.1	1096.1	5	1354.9	1096.1	0	0	0	0	0	0
8	Pilane ,O (Ogone)	5	1.5	-170	5	1.5	-170	0	0	0	0	0	0
8	Pilane ,O (Ogone)	5	1169.4	999.4	5	1154	999.4	0	0	0	0	0	0
9	Stelloh ,A (Alexander)	5	1	-255	5	1	-255	0	0	0	0	0	0
9	Stelloh ,A (Alexander)	5	1272.4	1017.4	5	1268.7	1017.4	0	0	0	0	0	0
10	De Jager ,L (Luado)	4	0	-425	4	0	-425	0	0	0	0	0	0
10	De Jager ,L (Luado)	4	1318.7	893.7	4	1314.1	893.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Botha, E (Erasmus Albertus)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms