Chess South Africa Ratings Database

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Personal

Boltman, A (Amber)

Chess SA id

1110306981

FIDE id

Date of birth

2011-05-13 (U16)

Gender

Male

Region

ZF Mgcawu (NZF)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1260.3

Item	Main	Standard	Rapid	Blitz
Rating	1267.7	1271.8	1200	1200
Raw rating	1267.7	1271.8	1200	1200
Weighted rating	1221.8	1223.2	1200	1200
Weighted performance	1230.6	1230.4	0	0
Floor	776.6	783	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	150.6	149.7	165.8	165.8
Highest rating	1276.6 2025-06-01	1283 2025-06-01	1200 2024-07-01	1200 2024-07-01
Highest raw rating	1276.6 2025-06-01	1283 2025-06-01	1200 2024-07-01	1200 2024-07-01
Highest weighted rating	1217 2025-09-01	1218.1 2025-09-01	1200 2024-07-01	1200 2024-07-01
Highest weighted performance	1276.6 2025-06-01	1277.4 2024-12-01	1200 2024-07-01	1200 2024-07-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1267.7	1271.8	1200	1200
Analysis
Rating	1267.7	1271.8	1200	1200
Raw rating	1267.7	1271.8	1200	1200
Weighted rating	1221.8	1223.2	1200
Weighted performance	1230.6	1230.4	0
K-factor	36	36	36	36
Floor	776.6	783	700	700
Max/Min rating change allowed	150.6	149.7	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	1267.7	1271.8	1200	1200
New weighted rating	1226.4	1228	1200	1200
New weighted performance	1230.2	1230	0	0
Temp new rating	1267.7	1271.8	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1267.7	1271.8	1200	1200
New K-factor	36	36	36	36
New floor	776.6	783	700	700

Item	Main	Standard
	0	0
	36	36
	5	5
	0	0
	0	0
	0	0
History	41	41

Games since
	Main 41	Standard 41		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	ZF Mgcawu (NZF)
Province	Northern Cape (NC)
Main
	RSA		Province		Region
Overall	3469		94		14
Male	2695		71		12
U16	559		23		4
U16 Male	400		16		3
Standard
	RSA		Province		Region
Overall	3326		121		19
Male	2578		94		17
U16	546		25		4
U16 Male	396		18		3
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	36	18	50	0	1259.2	1259.2
Standard	36	18	50	0	1259.2	1259.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	41	20	48.78	-10.4	1253.7	1243.3
Standard	41	20	48.78	-10.4	1253.7	1243.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1267.7	1271.8	1200	1200
2025-09-01	1267.7	1271.8	1200	1200
2025-08-01	1276.6	1283	1200	1200
2025-07-01	1276.6	1283	1200	1200
2025-06-01	1276.6	1283	1200	1200
2025-05-01	1194.6	1194.8	1200	1200
2025-04-01	1200.9	1202.7	1200	1200
2025-03-01	1192.9	1191.8	1200	1200
2025-02-01	1192.5	1191.4	1200	1200
2025-01-01	1184.7	1182.4	1200	1200
2024-12-01	1184.7	1182.4	1200	1200
2024-11-01	1184.7	1182.4	1200	1200
2024-10-01	1184.7	1182.4	1200	1200
2024-09-01	1184.7	1182.4	1200	1200
2024-08-01	1184.7	1182.4	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	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	Northern Cape Closed 202 (U16 Girls)	2025-08-22	2025-08-23	Standard	ZF Mgcawu (NZF)	5	5	2	Yes	Analysis
2	Spartan Bishops Championships Maidens 2025 (U16)	2025-05-23	2025-05-25	Standard	Frances Baard (NCF)	5	5	3	Yes	Analysis
3	2025 ZFM Closed Chess Championship (U16)	2025-05-09	2025-05-10	Standard	ZF Mgcawu (NZF)	5	5	2	Yes	Analysis
4	Keimoes K & Q Chess Club Open 2025 (U14)	2025-05-03	2025-05-03	Standard	ZF Mgcawu (NZF)	6	6	4	Yes	Analysis
5	Pawn Stars Chess Tournament 12 April 2025 (C)	2025-04-12	2025-04-12	Standard	ZF Mgcawu (NZF)	5	5	2	Yes	Analysis
6	Nababeep Chess Club Open 2025 (Championship)	2025-03-08	2025-03-08	Standard	Namakwa (NCN)	5	5	2	Yes	Analysis
7	2025 JTG Open (B)	2025-03-01	2025-03-01	Standard	John Taolo Gaetswewe (NCJ)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Northern Cape Closed 202 (U16 Girls)	2025-08-22	2025-08-23	Standard	ZF Mgcawu (NZF)	5	5	2	Yes	Analysis
2	Spartan Bishops Championships Maidens 2025 (U16)	2025-05-23	2025-05-25	Standard	Frances Baard (NCF)	5	5	3	Yes	Analysis
3	2025 ZFM Closed Chess Championship (U16)	2025-05-09	2025-05-10	Standard	ZF Mgcawu (NZF)	5	5	2	Yes	Analysis
4	Keimoes K & Q Chess Club Open 2025 (U14)	2025-05-03	2025-05-03	Standard	ZF Mgcawu (NZF)	6	6	4	Yes	Analysis
5	Pawn Stars Chess Tournament 12 April 2025 (C)	2025-04-12	2025-04-12	Standard	ZF Mgcawu (NZF)	5	5	2	Yes	Analysis
6	Nababeep Chess Club Open 2025 (Championship)	2025-03-08	2025-03-08	Standard	Namakwa (NCN)	5	5	2	Yes	Analysis
7	2025 JTG Open (B)	2025-03-01	2025-03-01	Standard	John Taolo Gaetswewe (NCJ)	5	5	3	Yes	Analysis
8	2024 Duineveld Open Toernooi (U14)	2024-07-20	2024-07-20	Standard	ZF Mgcawu (NZF)	5	5	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament 2024 Duineveld Open Toernooi				Tournament 2025 JTG Open
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Cloete, L (Lu-Ann)				Opponent Lephoto, T (Thapelo)
2	3	Tournament Keimoes K & Q Chess Club Open 2025				Tournament Keimoes K & Q Chess Club Open 2025
		date 2025-05-03	rnd 1	type Standard	result 1	date 2025-05-03	rnd 3	type Standard	result 1
		Opponent Cloete, L (Leonique)				Opponent Kordom, C (Craigh)
3	2	Tournament Northern Cape Closed 202				Tournament Northern Cape Closed 202
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 4	type Standard	result 1
		Opponent Mayanja, B (Brianah)				Opponent Van Rooi, K (Kaitlin)

#	Games	Start				End
1	4	Tournament 2024 Duineveld Open Toernooi				Tournament 2025 JTG Open
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Cloete, L (Lu-Ann)				Opponent Lephoto, T (Thapelo)
2	3	Tournament Keimoes K & Q Chess Club Open 2025				Tournament Keimoes K & Q Chess Club Open 2025
		date 2025-05-03	rnd 1	type Standard	result 1	date 2025-05-03	rnd 3	type Standard	result 1
		Opponent Cloete, L (Leonique)				Opponent Kordom, C (Craigh)
3	2	Tournament Northern Cape Closed 202				Tournament Northern Cape Closed 202
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 4	type Standard	result 1
		Opponent Mayanja, B (Brianah)				Opponent Van Rooi, K (Kaitlin)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament 2024 Duineveld Open Toernooi				Tournament 2025 JTG Open
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Cloete, L (Lu-Ann)				Opponent Lephoto, T (Thapelo)
2	3	Tournament Keimoes K & Q Chess Club Open 2025				Tournament Keimoes K & Q Chess Club Open 2025
		date 2025-05-03	rnd 1	type Standard	result 1	date 2025-05-03	rnd 3	type Standard	result 1
		Opponent Cloete, L (Leonique)				Opponent Kordom, C (Craigh)
3	2	Tournament Northern Cape Closed 202				Tournament Northern Cape Closed 202
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 4	type Standard	result 1
		Opponent Mayanja, B (Brianah)				Opponent Van Rooi, K (Kaitlin)

#	Games	Start				End
1	4	Tournament 2024 Duineveld Open Toernooi				Tournament 2025 JTG Open
		date 2024-07-20	rnd 4	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Cloete, L (Lu-Ann)				Opponent Lephoto, T (Thapelo)
2	3	Tournament Keimoes K & Q Chess Club Open 2025				Tournament Keimoes K & Q Chess Club Open 2025
		date 2025-05-03	rnd 1	type Standard	result 1	date 2025-05-03	rnd 3	type Standard	result 1
		Opponent Cloete, L (Leonique)				Opponent Kordom, C (Craigh)
3	2	Tournament Northern Cape Closed 202				Tournament Northern Cape Closed 202
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 4	type Standard	result 1
		Opponent Mayanja, B (Brianah)				Opponent Van Rooi, K (Kaitlin)

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	Fourie ,L (Lesia)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Fourie ,L (Lesia)	3	1481.8	1056.8	3	1480.8	1056.8	0	0	0	0	0	0
2	Erasmus ,N (Nico)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Erasmus ,N (Nico)	2	1208.9	783.9	2	1210.8	783.9	0	0	0	0	0	0
3	Job ,L (Luciano)	2	2	425	2	2	425	0	0	0	0	0	0
3	Job ,L (Luciano)	2	1198.2	1623.2	2	1197.8	1623.2	0	0	0	0	0	0
4	Mokalobe ,M (Mosa)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Mokalobe ,M (Mosa)	1	1327.1	902.1	1	1339.8	902.1	0	0	0	0	0	0
5	Booysen ,J (Jayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Booysen ,J (Jayden)	1	1251.7	826.7	1	1262.9	826.7	0	0	0	0	0	0
6	Van Zyl ,T (Tiffany)	1	1	425	1	1	425	0	0	0	0	0	0
6	Van Zyl ,T (Tiffany)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Saal ,K (Keshan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Saal ,K (Keshan)	1	1371.6	946.6	1	1382.8	946.6	0	0	0	0	0	0
8	Van Wyk ,M (Milano)	1	1	425	1	1	425	0	0	0	0	0	0
8	Van Wyk ,M (Milano)	1	1198.3	1623.3	1	1198.7	1623.3	0	0	0	0	0	0
9	Peters ,H (Hope)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Peters ,H (Hope)	1	1460.9	1035.9	1	1461	1035.9	0	0	0	0	0	0
10	Lephoto ,T (Thapelo)	1	1	425	1	1	425	0	0	0	0	0	0
10	Lephoto ,T (Thapelo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Boltman, A (Amber)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms