Chess South Africa Ratings Database

PLAYER PAGE

Personal

Abercrombie, KV (Keith Vernin)

Chess SA id

161050347

FIDE id

Date of birth

1961-03-23 (Adult)

Gender

Male

Region

Sarah Baartman (ESB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-06-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1373.3	1324.7	1461.1	1300
Raw rating	1373.3	1321.6	1461.1	1300
Weighted rating	1355.4	1324.7	1417.6	1299.7
Weighted performance	1207.2	1085	1270.5	0
Floor	873.3	861.6	961.1	800
K-factor	36	36	32	36
Min/Max rating change allowed	129.5	139.4	114.3	143.8
Highest rating	1406.2 2018-12-01	1407.5 2018-12-01	1578.4 2021-10-01	1300 2024-02-01
Highest raw rating	1373.3 2025-07-01	1361.6 2024-08-01	1461.1 2025-07-01	1300 2024-02-01
Highest weighted rating	1373.3 2025-05-05	1361.6 2025-05-05	1401.7 2025-08-01	1296.7 2025-08-01
Highest weighted performance	1406.2 2018-12-01	1407.5 2018-12-01	1578.4 2021-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0.4	0	0
New rating	1373.3	1325.1	1461.1	1300
Analysis
Rating	1373.3	1324.7	1461.1	1300
Raw rating	1373.3	1321.6	1461.1	1300
Weighted rating	1355.4	1324.7	1417.6
Weighted performance	1207.2	1085	1270.5
K-factor	36	36	32	36
Floor	873.3	861.6	961.1	800
Max/Min rating change allowed	129.5	139.4	114.3	143.8
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	1373.3	1321.6	1461.1	1300
New weighted rating	1357.8	1325.1	1422.3	1300
New weighted performance	1199.6	1078	1261.9	0
Temp new rating	1373.3	1325.1	1461.1	1300
Temp new rating +/-	0	0.4	0	0
Final new rating +/-	0	0.4	0	0
New rating	1373.3	1325.1	1461.1	1300
New K-factor	36	36	32	36
New floor	873.3	861.6	961.1	800

Item	Main	Standard	Rapid
	0	0	0
	23	13	10
	31	20	11
	11	6	5
	20	4	16
	7	0	7
History	119	70	49

Games since
	Main 59	Standard 33		Rapid 26		Blitz 0
Gender	Male
Age group	Adult
Region	Sarah Baartman (ESB)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	2460		302		69
Male	1989		253		57
Adult	547		47		9
Adult Male	503		45		9
Standard
	RSA		Province		Region
Overall	2938		373		90
Male	2338		306		73
Adult	543		52		10
Adult Male	496		49		10
Rapid
	RSA		Province		Region
Overall	323		20		10
Male	289		17		8
Adult	120		10		3
Adult Male	113		9		3
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	23	8	34.78	-129.3	1510.8	1381.4
Standard	13	3	23.08	-228.8	1469.9	1241.1
Rapid	10	5	50	0	1563.9	1563.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	103	57	55.34	45.4	1332	1377.4
Standard	54	25	46.3	-31.5	1335.5	1304
Rapid	49	32	65.31	130.1	1328.2	1458.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1373.3	1321.6	1461.1	1300
2025-09-30	1373.3	1321.6	1461.1	1300
2025-09-01	1373.3	1321.6	1461.1	1300
2025-08-01	1373.3	1321.6	1461.1	1300
2025-07-01	1373.3	1319.7	1461.1	1300
2025-06-01	1336.3	1314.8	1398.5	1300
2025-05-01	1344.2	1316.2	1398.5	1300
2025-04-01	1344.2	1313.9	1398.5	1300
2025-03-01	1344.2	1311.6	1398.5	1300
2025-02-01	1344.2	1311	1398.5	1300
2025-01-01	1365.7	1361.6	1398.5	1300
2024-12-01	1365.7	1361.6	1398.5	1300
2024-11-01	1365.7	1361.6	1398.5	1300
2024-10-01	1361.2	1361.6	1385.5	1300
2024-09-01	1361.2	1361.6	1385.5	1300
2024-08-01	1361.2	1361.6	1385.5	1300
2024-07-01	1321.9	1293.8	1385.5	1300
2024-09-01	1312.2	1293.8	1375.4	1300
2024-05-01	1333.6	1312.5	1375.4	1300
2024-04-01	1333.6	1312.5	1375.4	1300
2024-03-01	1292.8	1263.2	1375.4	1300
2024-02-01	1292.8	1263.2	1375.4	1300
2024-01-01	1292.8	1263.2	1375.4	1300
2023-12-01	1292.8	1244.7	1375.4	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	SBD Invitational 2025 (1)	2025-06-14	2025-06-14	Rapid	Sarah Baartman (ESB)	10	10	5	Yes	Analysis
2	Fountains Mall SBD Open 2025 (Open)	2025-05-16	2025-05-17	Standard	Sarah Baartman (ESB)	5	4	0	Yes	Analysis
3	2025 SBDCU Trial 2 JBay (U20+Open)	2025-01-25	2025-01-25	Standard	Sarah Baartman (ESB)	5	4	1	Yes	Analysis
4	Back 2 School 2025 (A)	2025-01-11	2025-01-11	Standard	Sarah Baartman (ESB)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	SBD Invitational 2025 (1)	2025-06-14	2025-06-14	Rapid	Sarah Baartman (ESB)	10	10	5	Yes	Analysis
2	Fountains Mall SBD Open 2025 (Open)	2025-05-16	2025-05-17	Standard	Sarah Baartman (ESB)	5	4	0	Yes	Analysis
3	2025 SBDCU Trial 2 JBay (U20+Open)	2025-01-25	2025-01-25	Standard	Sarah Baartman (ESB)	5	4	1	Yes	Analysis
4	Back 2 School 2025 (A)	2025-01-11	2025-01-11	Standard	Sarah Baartman (ESB)	5	5	2	Yes	Analysis
5	Jeffreys Bay CC 2024 (Double Attack)	2024-10-15	2024-10-15	Rapid	Sarah Baartman (ESB)	6	5	3	Yes	Analysis
6	Jeffreys Bay Chess Club Challenge 2024	2024-07-06	2024-07-06	Standard	Sarah Baartman (ESB)	6	5	4	Yes	Analysis
7	Jeffreys Bay Chess Club Challenge 2024 (Open)	2024-06-18	2024-06-18	Rapid	Sarah Baartman (ESB)	6	6	4	Yes	Analysis
8	Fountains Mall 2024 (Open)	2024-05-17	2024-05-18	Standard	Sarah Baartman (ESB)	6	5	0.5	Yes	Analysis
9	Spartan Bishops Chess Championships 2024 (Seniors)	2024-05-04	2024-05-05	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
10	Jeffreys Bay CC Fide Rated Tournament 2024	2024-03-18	2024-03-26	Standard	Sarah Baartman (ESB)	5	5	3.5	Yes	Analysis
11	Jeffreys Bay CC Nov Rapid 3 2023	2023-11-30	2023-11-30	Rapid	Sarah Baartman (ESB)	5	5	3	Yes	Analysis
12	Eastern Cape Provincial Individual Championship 2023 (Veterans)	2023-10-05	2023-10-06	Standard	Nelson Mandela Bay (ENM)	5	4	2.5	Yes	Analysis
13	Eastern Cape Chess Team Championship 2023 (Open)	2023-10-07	2023-10-08	Standard	Sarah Baartman (ESB)	5	2	1	Yes	Analysis
14	Jefreys Bay Chess Club Rapid 10 November 2022	2022-11-10	2022-11-10	Rapid	Sarah Baartman (ESB)	5	5	4	Yes	Analysis
15	Jeffreys Bay Chess Club Rapid September 2022	2022-09-22	2022-09-26	Rapid	Sarah Baartman (ESB)	5	2	1.5	Yes	Analysis
16	Jeffreys Bay Chess Club Rapid July Tournament 1 2022	2022-07-07	2022-07-07	Rapid	Sarah Baartman (ESB)	6	4	2.5	Yes	Analysis
17	Makhanda Open Chess Tournament 2022 (A)	2022-04-30	2022-04-30	Rapid	Sarah Baartman (ESB)	6	5	3	Yes	Analysis
18	SBDCU 2nd Open Tournament Fountains Mall 2022 (A)	2022-03-04	2022-03-05	Standard	Sarah Baartman (ESB)	5	4	1	Yes	Analysis
19	SBD Prep Tournament 2021	2021-10-16	2021-10-16	Rapid	Sarah Baartman (ESB)	7	7	6	Yes	Analysis
20	Brandwag Open 2020 (A)	2020-01-31	2020-02-01	Standard	Nelson Mandela Bay (ENM)	5	5	1.5	Yes	Analysis
21	Brandwag Open 2019 (A)	2019-01-25	2019-01-26	Standard	Nelson Mandela Bay (ENM)	5	1	0	Yes	Analysis
22	Ultimate Chess Open 2018 (D)	2018-12-01	2018-12-01	Standard	Nelson Mandela Bay (ENM)	5	5	5	Yes	Analysis

#	Games	Start				End
1	7	Tournament Jeffreys Bay Chess Club Challenge 2024				Tournament Jeffreys Bay Chess Club Challenge 2024
		date 2024-06-18	rnd 5	type Rapid	result 1	date 2024-07-06	rnd 5	type Standard	result 0.5
		Opponent Naude, M (Michael)				Opponent Moolman, A (Anrico)
2	6	Tournament Jeffreys Bay Chess Club Rapid September 2022				Tournament Jefreys Bay Chess Club Rapid 10 November 2022
		date 2022-09-26	rnd 4	type Rapid	result 0.5	date 2022-11-10	rnd 4	type Rapid	result 1
		Opponent Munemo, T (Tadiwa)				Opponent Potgieter, D (Divan)
3	5	Tournament Makhanda Open Chess Tournament 2022				Tournament Jeffreys Bay Chess Club Rapid July Tournament 1 2022
		date 2022-04-30	rnd 4	type Rapid	result 1	date 2022-07-07	rnd 5	type Rapid	result 1
		Opponent Booysen, L (Leon)				Opponent De Lange, E (Erin)

#	Games	Start				End
1	5	Tournament Jeffreys Bay Chess Club Challenge 2024				Tournament Jeffreys Bay Chess Club Challenge 2024
		date 2024-07-06	rnd 1	type Standard	result 0.5	date 2024-07-06	rnd 5	type Standard	result 0.5
		Opponent Werner, G (George)				Opponent Moolman, A (Anrico)
2	5	Tournament Ultimate Chess Open 2018				Tournament Ultimate Chess Open 2018
		date 2018-12-01	rnd 1	type Standard	result 1	date 2018-12-01	rnd 5	type Standard	result 1
		Opponent Kivido, D (Dean)				Opponent Peter, M (Mninawa)
3	3	Tournament Jeffreys Bay CC Fide Rated Tournament 2024				Tournament Spartan Bishops Chess Championships 2024
		date 2024-03-25	rnd 4	type Standard	result 1	date 2024-05-04	rnd 1	type Standard	result 1
		Opponent Le Grange, T (Tailyn)				Opponent De Jager, R (Riaan)

#	Games	Start				End
1	6	Tournament Jeffreys Bay Chess Club Rapid September 2022				Tournament Jefreys Bay Chess Club Rapid 10 November 2022
		date 2022-09-26	rnd 4	type Rapid	result 0.5	date 2022-11-10	rnd 4	type Rapid	result 1
		Opponent Munemo, T (Tadiwa)				Opponent Potgieter, D (Divan)
2	5	Tournament Makhanda Open Chess Tournament 2022				Tournament Jeffreys Bay Chess Club Rapid July Tournament 1 2022
		date 2022-04-30	rnd 4	type Rapid	result 1	date 2022-07-07	rnd 5	type Rapid	result 1
		Opponent Booysen, L (Leon)				Opponent De Lange, E (Erin)
3	4	Tournament SBD Prep Tournament 2021				Tournament Makhanda Open Chess Tournament 2022
		date 2021-10-16	rnd 5	type Rapid	result 1	date 2022-04-30	rnd 1	type Rapid	result 1
		Opponent Powell, D (Dominic)				Opponent Ma, M (Morgan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Jeffreys Bay Chess Club Rapid September 2022				Tournament Jefreys Bay Chess Club Rapid 10 November 2022
		date 2022-09-26	rnd 5	type Rapid	result 1	date 2022-11-10	rnd 4	type Rapid	result 1
		Opponent Petru, D (Denzil)				Opponent Potgieter, D (Divan)
2	5	Tournament Ultimate Chess Open 2018				Tournament Ultimate Chess Open 2018
		date 2018-12-01	rnd 1	type Standard	result 1	date 2018-12-01	rnd 5	type Standard	result 1
		Opponent Kivido, D (Dean)				Opponent Peter, M (Mninawa)
3	4	Tournament Brandwag Open 2020				Tournament SBD Prep Tournament 2021
		date 2020-02-01	rnd 5	type Standard	result 1	date 2021-10-16	rnd 3	type Rapid	result 1
		Opponent Pienaar, KT (Keaton)				Opponent Moolman, A (Anrico)

#	Games	Start				End
1	5	Tournament Ultimate Chess Open 2018				Tournament Ultimate Chess Open 2018
		date 2018-12-01	rnd 1	type Standard	result 1	date 2018-12-01	rnd 5	type Standard	result 1
		Opponent Kivido, D (Dean)				Opponent Peter, M (Mninawa)
2	3	Tournament Jeffreys Bay Chess Club Challenge 2024				Tournament Jeffreys Bay Chess Club Challenge 2024
		date 2024-07-06	rnd 2	type Standard	result 1	date 2024-07-06	rnd 4	type Standard	result 1
		Opponent Van Nieuwenhuizen, PB (Petrus)				Opponent Leslie, L (Len)
3	3	Tournament Jeffreys Bay CC Fide Rated Tournament 2024				Tournament Spartan Bishops Chess Championships 2024
		date 2024-03-25	rnd 4	type Standard	result 1	date 2024-05-04	rnd 1	type Standard	result 1
		Opponent Le Grange, T (Tailyn)				Opponent De Jager, R (Riaan)

#	Games	Start				End
1	5	Tournament Jeffreys Bay Chess Club Rapid September 2022				Tournament Jefreys Bay Chess Club Rapid 10 November 2022
		date 2022-09-26	rnd 5	type Rapid	result 1	date 2022-11-10	rnd 4	type Rapid	result 1
		Opponent Petru, D (Denzil)				Opponent Potgieter, D (Divan)
2	4	Tournament SBD Prep Tournament 2021				Tournament Makhanda Open Chess Tournament 2022
		date 2021-10-16	rnd 5	type Rapid	result 1	date 2022-04-30	rnd 1	type Rapid	result 1
		Opponent Powell, D (Dominic)				Opponent Ma, M (Morgan)
3	3	Tournament SBD Invitational 2025				Tournament SBD Invitational 2025
		date 2025-06-14	rnd 1	type Rapid	result 1	date 2025-06-14	rnd 3	type Rapid	result 1
		Opponent Jonas, F (Fernando)				Opponent Stuurman, P (Pedro)

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	Ndyova ,T (Thanduxolo)	5	0	-425	2	0	-425	3	0	-425	0	0	0
1	Ndyova ,T (Thanduxolo)	5	1585.6	1160.6	2	1518.1	1160.6	3	1498.9	1160.6	0	0	0
2	Booysen ,L (Leon)	4	4	425	2	2	425	2	2	425	0	0	0
2	Booysen ,L (Leon)	4	901.8	1326.8	2	737.9	1326.8	2	928	1326.8	0	0	0
3	Stuurman ,P (Pedro)	4	2	0	1	0	-425	3	2	141.7	0	0	0
3	Stuurman ,P (Pedro)	4	1566.2	1566.2	1	1653.1	1141.2	3	1605.9	1707.8	0	0	0
4	Lagardien ,I (Ismaeel)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
4	Lagardien ,I (Ismaeel)	3	1510.5	1227.1	3	1506.8	1227.1	0	0	0	0	0	0
5	Munemo ,T (Tadiwa)	3	1	-141.7	2	0.5	-212.5	1	0.5	0	0	0	0
5	Munemo ,T (Tadiwa)	3	1461.6	1320	2	1498	1249.1	1	1285.2	1461.6	0	0	0
6	Barendse ,R (Raydon)	3	3	425	1	1	425	2	2	425	0	0	0
6	Barendse ,R (Raydon)	3	1197.7	1622.7	1	1090.3	1622.7	2	1276.2	1622.7	0	0	0
7	Krieger ,BCJ (Brian)	3	3	425	0	0	0	3	3	425	0	0	0
7	Krieger ,BCJ (Brian)	3	1483.6	1908.6	0	0	0	3	1487.6	1908.6	0	0	0
8	Persent ,G (Gavin)	3	1	-141.7	0	0	0	3	1	-141.7	0	0	0
8	Persent ,G (Gavin)	3	1526.3	1384.6	0	0	0	3	1572.9	1384.6	0	0	0
9	Rishworth ,J (Justin)	3	0	-425	0	0	0	3	0	-425	0	0	0
9	Rishworth ,J (Justin)	3	1485.3	1060.3	0	0	0	3	1491.2	1060.3	0	0	0
10	Oosthuizen ,A (Amand)	2	2	425	1	1	425	1	1	425	0	0	0
10	Oosthuizen ,A (Amand)	2	1201.8	1626.8	1	1200	1626.8	1	1200	1626.8	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Abercrombie, KV (Keith Vernin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms