Chess South Africa Ratings Database

PLAYER PAGE

Personal

Mcnab, A (Andrew)

Chess SA id

1090114096

FIDE id

Date of birth

2009-03-12 (U18)

Gender

Male

Region

Lejweleputswa (FLW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1063.2	1064.7	1200	1200
Raw rating	1057.8	1057.9	1200	1200
Weighted rating	1063.2	1064.7	1200	1200
Weighted performance	943.1	935.9	0	0
Floor	733.9	740.4	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	203	203	165.8	165.8
Highest rating	1373.1 2019-03-01	1372.3 2019-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1233.9 2019-04-01	1240.4 2019-04-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1233.9 2019-04-01	1240.4 2019-04-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1373.1 2019-03-01	1372.3 2019-03-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.2	-0.3	0	0
New rating	1062.9	1064.4	1200	1200
Analysis
Rating	1063.2	1064.7	1200	1200
Raw rating	1057.8	1057.9	1200	1200
Weighted rating	1063.2	1064.7	1200
Weighted performance	943.1	935.9	0
K-factor	36	36	36	36
Floor	733.9	740.4	700	700
Max/Min rating change allowed	203	203	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	1057.8	1057.9	1200	1200
New weighted rating	1062.9	1064.4	1200	1200
New weighted performance	942.7	935.6	0	0
Temp new rating	1062.9	1064.4	1200	1200
Temp new rating +/-	-0.2	-0.3	0	0
Final new rating +/-	-0.2	-0.3	0	0
New rating	1062.9	1064.4	1200	1200
New K-factor	36	36	36	36
New floor	733.9	740.4	700	700

Item	Main	Standard
	0	0
	9	9
	13	13
	10	10
	0	0
	5	5
History	74	74

Games since
	Main 22	Standard 22		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Lejweleputswa (FLW)
Province	Free State (FS)
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	9	3	33.33	-141.7	1249.9	1108.2
Standard	9	3	33.33	-141.7	1249.9	1108.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	74	28	37.84	-103.4	1179.9	1076.5
Standard	74	28	37.84	-103.4	1179.9	1076.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1057.8	1057.9	1200	1200
2025-09-01	1057.8	1057.9	1200	1200
2025-08-01	1096.1	1104.5	1200	1200
2025-07-01	1096.1	1104.5	1200	1200
2025-06-01	1096.1	1104.5	1200	1200
2025-05-01	1096.1	1104.5	1200	1200
2025-04-01	1051.7	1050.9	1200	1200
2025-03-01	1051.7	1050.9	1200	1200
2025-02-01	1051.2	1050.3	1200	1200
2025-01-01	1040.6	1037.7	1200	1200
2024-12-01	1040.6	1037.7	1200	1200
2024-11-01	1040.6	1037.7	1200	1200
2024-10-01	1040.6	1037.7	1200	1200
2024-09-01	1042.7	1039.5	1200	1200
2024-08-01	1042.7	1039.5	1200	1200
2024-07-01	1042.7	1039.5	1200	1200
2024-06-01	1042.7	1039.5	1200	1200
2024-08-01	1079.3	1083.8	1200	1200
2024-04-01	1064.5	1066.5	1200	1200
2024-03-01	1064.5	1066.5	1200	1200
2024-02-01	1064.5	1066.5	1200	1200
2024-01-01	1064.5	1066.5	1200	1200
2023-12-01	1064.5	1066.5	1200	1200
2023-11-01	1064.5	1066.5	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	Free State Closed 2025 (U18 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	4	0	Yes	Analysis
2	Lejweleputswa Chess 4th Qualifying Swiss Open Tournament 2025 (B)	2025-04-12	2025-04-12	Standard	Lejweleputswa (FLW)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Free State Closed 2025 (U18 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	4	0	Yes	Analysis
2	Lejweleputswa Chess 4th Qualifying Swiss Open Tournament 2025 (B)	2025-04-12	2025-04-12	Standard	Lejweleputswa (FLW)	5	5	3	Yes	Analysis
3	Lejweleputswa Closed Chess Championships 2024 (U16)	2024-09-21	2024-09-21	Standard	Lejweleputswa (FLW)	5	4	1	Yes	Analysis
4	Lejweleputswa 4th Qualifying Tournament 2024 (U18)	2024-05-11	2024-05-11	Standard	Lejweleputswa (FLW)	5	4	0.5	Yes	Analysis
5	Lejweleputswa 3rd Qualifieng Tournament 2024 (U16)	2024-04-20	2024-04-20	Standard	Lejweleputswa (FLW)	5	5	2	Yes	Analysis
6	Lejweleputswa 4th Qualifying Tournament 2023 (U16)	2023-05-26	2023-05-26	Standard	Lejweleputswa (FLW)	5	5	2	Yes	Analysis
7	Lejweleputswa 3rd Qualifieng Tournament 2023 (C)	2023-04-21	2023-04-21	Standard	Lejweleputswa (FLW)	5	5	2	Yes	Analysis
8	Lejweleputswa 3rd Qualifying Tournament 2021 (C)	2021-04-24	2021-04-24	Standard	Lejweleputswa (FLW)	5	5	2	Yes	Analysis
9	2019 South African Junior Team Championships (U12D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	0	Yes	Analysis
10	Lejweleputswa 7th Qualifying Swiss Open Tournament 2019 (U12)	2019-06-15	2019-06-15	Standard	Lejweleputswa (FLW)	5	5	3	Yes	Analysis
11	Inter Regional Chess Championship 2019 (U12)	2019-05-10	2019-05-11	Standard	Mangaung (FMB)	5	5	1	Yes	Analysis
12	Lejweleputswa Schools Chess Championship 2019 (U11)	2019-05-18	2019-05-18	Standard	Lejweleputswa (FLW)	5	5	2	Yes	Analysis
13	Lejweleputswa 6th Qualifying Swiss Open Tournament 2019 (F)	2019-05-25	2019-05-25	Standard	Lejweleputswa (FLW)	5	5	4	Yes	Analysis
14	Lejweleputswa 5th Qualifier 2019 (U12)	2019-04-13	2019-04-13	Standard	Lejweleputswa (FLW)	5	5	2	Yes	Analysis
15	Lejweleputswa 4th Qualifying Swiss Open Tournament 2019 (F)	2019-03-16	2019-03-16	Standard	Lejweleputswa (FLW)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Lejweleputswa 4th Qualifying Tournament 2023				Tournament Lejweleputswa 3rd Qualifieng Tournament 2024
		date 2023-05-26	rnd 5	type Standard	result 1	date 2024-04-20	rnd 2	type Standard	result 1
		Opponent Monyatso, T (Tankiso)				Opponent Michalakis, S (Stylianos)
2	3	Tournament Lejweleputswa 7th Qualifying Swiss Open Tournament 2019				Tournament Lejweleputswa 7th Qualifying Swiss Open Tournament 2019
		date 2019-06-15	rnd 2	type Standard	result 1	date 2019-06-15	rnd 4	type Standard	result 1
		Opponent Mbongo, W (Wandile)				Opponent Adlem, AJ (Aj)
3	3	Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019				Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019
		date 2019-05-25	rnd 1	type Standard	result 1	date 2019-05-25	rnd 3	type Standard	result 1
		Opponent Bontes, B (Bobi)				Opponent Van Der Merwe, C (Christiaan)

#	Games	Start				End
1	3	Tournament Lejweleputswa 4th Qualifying Tournament 2023				Tournament Lejweleputswa 3rd Qualifieng Tournament 2024
		date 2023-05-26	rnd 5	type Standard	result 1	date 2024-04-20	rnd 2	type Standard	result 1
		Opponent Monyatso, T (Tankiso)				Opponent Michalakis, S (Stylianos)
2	3	Tournament Lejweleputswa 7th Qualifying Swiss Open Tournament 2019				Tournament Lejweleputswa 7th Qualifying Swiss Open Tournament 2019
		date 2019-06-15	rnd 2	type Standard	result 1	date 2019-06-15	rnd 4	type Standard	result 1
		Opponent Mbongo, W (Wandile)				Opponent Adlem, AJ (Aj)
3	3	Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019				Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019
		date 2019-05-25	rnd 1	type Standard	result 1	date 2019-05-25	rnd 3	type Standard	result 1
		Opponent Bontes, B (Bobi)				Opponent Van Der Merwe, C (Christiaan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Lejweleputswa 4th Qualifying Tournament 2023				Tournament Lejweleputswa 3rd Qualifieng Tournament 2024
		date 2023-05-26	rnd 5	type Standard	result 1	date 2024-04-20	rnd 2	type Standard	result 1
		Opponent Monyatso, T (Tankiso)				Opponent Michalakis, S (Stylianos)
2	3	Tournament Lejweleputswa 7th Qualifying Swiss Open Tournament 2019				Tournament Lejweleputswa 7th Qualifying Swiss Open Tournament 2019
		date 2019-06-15	rnd 2	type Standard	result 1	date 2019-06-15	rnd 4	type Standard	result 1
		Opponent Mbongo, W (Wandile)				Opponent Adlem, AJ (Aj)
3	3	Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019				Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019
		date 2019-05-25	rnd 1	type Standard	result 1	date 2019-05-25	rnd 3	type Standard	result 1
		Opponent Bontes, B (Bobi)				Opponent Van Der Merwe, C (Christiaan)

#	Games	Start				End
1	3	Tournament Lejweleputswa 4th Qualifying Tournament 2023				Tournament Lejweleputswa 3rd Qualifieng Tournament 2024
		date 2023-05-26	rnd 5	type Standard	result 1	date 2024-04-20	rnd 2	type Standard	result 1
		Opponent Monyatso, T (Tankiso)				Opponent Michalakis, S (Stylianos)
2	3	Tournament Lejweleputswa 7th Qualifying Swiss Open Tournament 2019				Tournament Lejweleputswa 7th Qualifying Swiss Open Tournament 2019
		date 2019-06-15	rnd 2	type Standard	result 1	date 2019-06-15	rnd 4	type Standard	result 1
		Opponent Mbongo, W (Wandile)				Opponent Adlem, AJ (Aj)
3	3	Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019				Tournament Lejweleputswa 6th Qualifying Swiss Open Tournament 2019
		date 2019-05-25	rnd 1	type Standard	result 1	date 2019-05-25	rnd 3	type Standard	result 1
		Opponent Bontes, B (Bobi)				Opponent Van Der Merwe, C (Christiaan)

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 ,K (Kyle)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
1	Fourie ,K (Kyle)	3	1254	1112.3	3	1252.1	1112.3	0	0	0	0	0	0
2	Van Brakel ,J (Jandre)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
2	Van Brakel ,J (Jandre)	3	1232.1	1090.4	3	1239.9	1090.4	0	0	0	0	0	0
3	Khau ,K (Kamo)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Khau ,K (Kamo)	2	1190.8	765.8	2	1187.6	765.8	0	0	0	0	0	0
4	Monyatso ,T (Tankiso)	2	1	0	2	1	0	0	0	0	0	0	0
4	Monyatso ,T (Tankiso)	2	1196.3	1196.3	2	1195.3	1196.3	0	0	0	0	0	0
5	Maposa ,A (Akhanani)	2	1	0	2	1	0	0	0	0	0	0	0
5	Maposa ,A (Akhanani)	2	1244.3	1244.3	2	1249.2	1244.3	0	0	0	0	0	0
6	Mosoeunyane ,J (Junior)	2	2	425	2	2	425	0	0	0	0	0	0
6	Mosoeunyane ,J (Junior)	2	1174.4	1599.4	2	1169.1	1599.4	0	0	0	0	0	0
7	Ncike ,L (Luthando)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Ncike ,L (Luthando)	2	1222.4	797.4	2	1224.3	797.4	0	0	0	0	0	0
8	Saunders ,J (John)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Saunders ,J (John)	2	1222.7	797.7	2	1226.4	797.7	0	0	0	0	0	0
9	Molokwu ,C (Chioma)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Molokwu ,C (Chioma)	2	1191.1	766.1	2	1189.4	766.1	0	0	0	0	0	0
10	Michalakis ,S (Stylianos)	2	1	0	2	1	0	0	0	0	0	0	0
10	Michalakis ,S (Stylianos)	2	1152.4	1152.4	2	1145.6	1152.4	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

Mcnab, A (Andrew)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms