Chess South Africa Ratings Database

PLAYER PAGE

Personal

Meiboom Jnr, G (Gerrit)

Chess SA id

161022514

FIDE id

Date of birth

1961-04-24 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-11-10

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1862.8	1793.1	1951.8	1931.2
Raw rating	1861.7	1793.1	1951.8	1931.2
Weighted rating	1862.8	1792.4	1951.8	1931.2
Weighted performance	907.6	909.8	0	0
Floor	1487	1487	1487	1487
K-factor	24	24	24	24
Min/Max rating change allowed	64.6	71.2	56.8	58.5
Highest rating	1987 2018-01-01	1987 2018-03-01	1987 2018-03-01	1987 2018-01-01
Highest raw rating	1987 2018-01-01	1987 2018-01-01	1987 2018-01-01	1987 2018-01-01
Highest weighted rating	1987 2018-01-01	1987 2018-03-01	1987 2018-03-01	1987 2018-01-01
Highest weighted performance	1690 2018-09-01	1729.7 2018-09-01	1776.2 2019-10-01	1864.9 2018-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.2	0	0	0
New rating	1862.6	1793.1	1951.8	1931.2
Analysis
Rating	1862.8	1793.1	1951.8	1931.2
Raw rating	1861.7	1793.1	1951.8	1931.2
Weighted rating	1862.8	1792.4	1951.8
Weighted performance	907.6	909.8	0
K-factor	24	24	24	24
Floor	1487	1487	1487	1487
Max/Min rating change allowed	64.6	71.2	56.8	58.5
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	1861.7	1793.1	1951.8	1931.2
New weighted rating	1862.6	1792.3	1951.8	1931.2
New weighted performance	897.9	899.9	0	0
Temp new rating	1862.6	1793.1	1951.8	1931.2
Temp new rating +/-	-0.2	0	0	0
Final new rating +/-	-0.2	0	0	0
New rating	1862.6	1793.1	1951.8	1931.2
New K-factor	24	24	24	24
New floor	1487	1487	1487	1487

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	6	6	0	0
	0	0	0	0
	6	6	0	0
	0	0	0	0
History	112	81	11	20

Games since
	Main 6	Standard 6		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	98	57.5	58.67	73.7	1654.4	1728.1
Standard	67	35	52.24	19	1698.8	1717.9
Rapid	11	7	63.64	115.9	1652.2	1768.1
Blitz	20	15.5	77.5	233.8	1506.7	1740.4

Date	Main	Standard	Rapid	Blitz
2025-11-01	1861.7	1793.1	1951.8	1931.2
2025-09-30	1861.7	1793.1	1951.8	1931.2
2025-09-01	1861.7	1793.1	1951.8	1931.2
2025-08-01	1861.7	1793.1	1951.8	1931.2
2025-07-01	1860.8	1793.1	1951.8	1931.2
2025-06-01	1859.8	1793.1	1951.8	1931.2
2025-05-01	1858.6	1793.1	1951.8	1931.2
2025-04-01	1857.3	1793.1	1951.8	1931.2
2025-03-01	1855.8	1793.1	1951.8	1931.2
2025-02-01	1853.6	1791.6	1951.8	1931.2
2025-01-01	1844.1	1769.7	1951.8	1931.2
2024-12-01	1844.1	1769.7	1951.8	1931.2
2024-11-01	1878.3	1798.7	1951.8	1931.2
2024-10-01	1878.3	1798.7	1951.8	1931.2
2024-09-01	1878.3	1798.7	1951.8	1931.2
2024-08-01	1878.3	1798.7	1951.8	1931.2
2024-07-01	1878.3	1798.7	1951.8	1931.2
2024-09-01	1878.3	1798.7	1951.8	1931.2
2024-05-01	1878.3	1798.7	1951.8	1931.2
2024-04-01	1878.3	1798.7	1951.8	1931.2
2024-03-01	1878.3	1798.7	1951.8	1931.2
2024-02-01	1878.3	1798.7	1951.8	1931.2
2024-01-01	1878.3	1798.7	1951.8	1931.2
2023-12-01	1786.7	1796.6	1951.8	1931.2

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2024 (A)	2024-11-09	2024-11-10	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
2	Bellville Chess Club Champs 2022 (Group 1)	2022-05-16	2022-07-04	Standard	Cape Town (WCT)	7	6	4	Yes	Analysis
3	2019 South African Closed Chess Championships (Senior)	2019-12-07	2019-12-17	Standard	Cape Town (WCT)	11	10	4	Yes	Analysis
4	Bellville Rapid Oct 2019	2019-10-14	2019-10-14	Rapid	Cape Town (WCT)	6	6	5.5	Yes	Analysis
5	Bellville Blitz 2019	2019-09-16	2019-09-16	Blitz	Cape Town (WCT)	6	6	4	Yes	Analysis
6	2019 Western Province League (Premier)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	9	5	Yes	Analysis
7	Stellenberg Youth Chess Championship 2019 (Presige)	2019-05-01	2019-05-01	Rapid	Cape Town (WCT)	6	5	1.5	Yes	Analysis
8	Steinitz Chess Festival 2019 (A)	2019-04-05	2019-04-07	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
9	Bellville Club Champs 2019 (A)	2019-02-04	2019-05-27	Standard	Cape Town (WCT)	11	10	6.5	Yes	Analysis
10	Bellville Chess Club 01 Blitz Tournament 2019	2019-01-28	2019-01-28	Blitz	Cape Town (WCT)	7	7	6	Yes	Analysis
11	2018 Western Province League (Premier)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	11	10	5.5	Yes	Analysis
12	Bellville Club Champs 2018 (A)	2018-02-12	2018-06-04	Standard	Cape Town (WCT)	11	10	5.5	Yes	Analysis
13	Bellville Chess Club 2 Blitz 2018	2018-02-05	2018-02-05	Blitz	Cape Town (WCT)	7	7	5.5	Yes	Analysis

#	Games	Start				End
1	9	Tournament Bellville Chess Club Champs 2022				Tournament Helderberg Chess Club Open 2024
		date 2022-05-16	rnd 1	type Standard	result 1	date 2024-11-09	rnd 3	type Standard	result 0.5
		Opponent Jooste, M (Marko)				Opponent Martz, SK (Sven)
2	8	Tournament Bellville Blitz 2019				Tournament 2019 South African Closed Chess Championships
		date 2019-09-16	rnd 6	type Blitz	result 1	date 2019-12-07	rnd 1	type Standard	result 1
		Opponent Prinsloo, R (Reinhardt)				Opponent Talmarkes, AG (Andrew)
3	8	Tournament Bellville Club Champs 2018				Tournament 2018 Western Province League
		date 2018-05-28	rnd 10	type Standard	result 0.5	date 2018-08-18	rnd 6	type Standard	result 0.5
		Opponent Van Schaik, MP (Michael)				Opponent Hendriksz, GJ (Gabriel)

#	Games	Start				End
1	9	Tournament Bellville Chess Club Champs 2022				Tournament Helderberg Chess Club Open 2024
		date 2022-05-16	rnd 1	type Standard	result 1	date 2024-11-09	rnd 3	type Standard	result 0.5
		Opponent Jooste, M (Marko)				Opponent Martz, SK (Sven)
2	8	Tournament Bellville Club Champs 2018				Tournament 2018 Western Province League
		date 2018-05-28	rnd 10	type Standard	result 0.5	date 2018-08-18	rnd 6	type Standard	result 0.5
		Opponent Van Schaik, MP (Michael)				Opponent Hendriksz, GJ (Gabriel)
3	6	Tournament Steinitz Chess Festival 2019				Tournament Bellville Club Champs 2019
		date 2019-04-07	rnd 6	type Standard	result 0.5	date 2019-05-20	rnd 10	type Standard	result 1
		Opponent Salem, A (Abdarahim)				Opponent Holland, RI (Richard)

#	Games	Start				End
1	6	Tournament Bellville Rapid Oct 2019				Tournament Bellville Rapid Oct 2019
		date 2019-10-14	rnd 1	type Rapid	result 1	date 2019-10-14	rnd 6	type Rapid	result 1
		Opponent Prinsloo, R (Reinhardt)				Opponent Wright, M (Malcolm)
2	1	Tournament Stellenberg Youth Chess Championship 2019				Tournament Stellenberg Youth Chess Championship 2019
		date 2019-05-01	rnd 4	type Rapid	result 1	date 2019-05-01	rnd 4	type Rapid	result 1
		Opponent Steenkamp, E (Eugene)				Opponent Steenkamp, E (Eugene)
3	1	Tournament Stellenberg Youth Chess Championship 2019				Tournament Stellenberg Youth Chess Championship 2019
		date 2019-05-01	rnd 1	type Rapid	result 0.5	date 2019-05-01	rnd 1	type Rapid	result 0.5
		Opponent Kobese, AKW (Watu)				Opponent Kobese, AKW (Watu)

#	Games	Start				End
1	6	Tournament Bellville Chess Club 01 Blitz Tournament 2019				Tournament Bellville Blitz 2019
		date 2019-01-28	rnd 4	type Blitz	result 1	date 2019-09-16	rnd 2	type Blitz	result 1
		Opponent Snyman, J (Johannes)				Opponent Magwembere, A (Adrian)
2	5	Tournament Bellville Chess Club 2 Blitz 2018				Tournament Bellville Chess Club 01 Blitz Tournament 2019
		date 2018-02-05	rnd 5	type Blitz	result 1	date 2019-01-28	rnd 2	type Blitz	result 1
		Opponent Baxter, DJ (David)				Opponent Walters, WDP (Wouter)
3	3	Tournament Bellville Chess Club 2 Blitz 2018				Tournament Bellville Chess Club 2 Blitz 2018
		date 2018-02-05	rnd 1	type Blitz	result 1	date 2018-02-05	rnd 3	type Blitz	result 1
		Opponent Williams, DJ (Dale)				Opponent Blaauw, GM (Gavin)

#	Games	Start				End
1	6	Tournament Bellville Chess Club 01 Blitz Tournament 2019				Tournament Bellville Club Champs 2019
		date 2019-01-28	rnd 4	type Blitz	result 1	date 2019-02-11	rnd 2	type Standard	result 1
		Opponent Snyman, J (Johannes)				Opponent Walters, WDP (Wouter)
2	4	Tournament Bellville Rapid Oct 2019				Tournament 2019 South African Closed Chess Championships
		date 2019-10-14	rnd 4	type Rapid	result 1	date 2019-12-07	rnd 1	type Standard	result 1
		Opponent Mncwabe, M (Minenhle Junior)				Opponent Talmarkes, AG (Andrew)
3	4	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-08-03	rnd 3	type Standard	result 1	date 2019-08-10	rnd 6	type Standard	result 1
		Opponent Goredema, D (Dione)				Opponent Johnson, H (Heinrich)

#	Games	Start				End
1	4	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-08-03	rnd 3	type Standard	result 1	date 2019-08-10	rnd 6	type Standard	result 1
		Opponent Goredema, D (Dione)				Opponent Johnson, H (Heinrich)
2	3	Tournament 2018 Western Province League				Tournament Bellville Club Champs 2019
		date 2018-09-15	rnd 11	type Standard	result 1	date 2019-02-11	rnd 2	type Standard	result 1
		Opponent Mncwabe, M (Minenhle Junior)				Opponent Walters, WDP (Wouter)
3	2	Tournament Bellville Club Champs 2019				Tournament Bellville Club Champs 2019
		date 2019-04-08	rnd 6	type Standard	result 1	date 2019-04-15	rnd 7	type Standard	result 1
		Opponent Levin, BRL (Benny)				Opponent Muller, ND (Neyton)

#	Games	Start				End
1	3	Tournament Bellville Rapid Oct 2019				Tournament Bellville Rapid Oct 2019
		date 2019-10-14	rnd 4	type Rapid	result 1	date 2019-10-14	rnd 6	type Rapid	result 1
		Opponent Mncwabe, M (Minenhle Junior)				Opponent Wright, M (Malcolm)
2	2	Tournament Bellville Rapid Oct 2019				Tournament Bellville Rapid Oct 2019
		date 2019-10-14	rnd 1	type Rapid	result 1	date 2019-10-14	rnd 2	type Rapid	result 1
		Opponent Prinsloo, R (Reinhardt)				Opponent Holland, RI (Richard)
3	1	Tournament Stellenberg Youth Chess Championship 2019				Tournament Stellenberg Youth Chess Championship 2019
		date 2019-05-01	rnd 4	type Rapid	result 1	date 2019-05-01	rnd 4	type Rapid	result 1
		Opponent Steenkamp, E (Eugene)				Opponent Steenkamp, E (Eugene)

#	Games	Start				End
1	6	Tournament Bellville Chess Club 01 Blitz Tournament 2019				Tournament Bellville Blitz 2019
		date 2019-01-28	rnd 4	type Blitz	result 1	date 2019-09-16	rnd 2	type Blitz	result 1
		Opponent Snyman, J (Johannes)				Opponent Magwembere, A (Adrian)
2	3	Tournament Bellville Chess Club 2 Blitz 2018				Tournament Bellville Chess Club 01 Blitz Tournament 2019
		date 2018-02-05	rnd 7	type Blitz	result 1	date 2019-01-28	rnd 2	type Blitz	result 1
		Opponent Holland, RI (Richard)				Opponent Walters, WDP (Wouter)
3	3	Tournament Bellville Chess Club 2 Blitz 2018				Tournament Bellville Chess Club 2 Blitz 2018
		date 2018-02-05	rnd 1	type Blitz	result 1	date 2018-02-05	rnd 3	type Blitz	result 1
		Opponent Williams, DJ (Dale)				Opponent Blaauw, GM (Gavin)

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	Walters ,WDP (Wouter Dirk Pretorius)	5	3	85	3	2	141.7	0	0	0	2	1	0
1	Walters ,WDP (Wouter Dirk Pretorius)	5	1572.9	1657.9	3	1568.3	1714.6	0	0	0	2	1611.2	1572.9
2	Horne ,N (Neil)	4	3.5	318.8	3	2.5	283.3	1	1	425	0	0	0
2	Horne ,N (Neil)	4	1683.7	2002.4	3	1687.1	1967	1	1674.8	2108.7	0	0	0
3	Van Schaik ,MP (Michael Peter)	4	3	212.5	3	2	141.7	0	0	0	1	1	425
3	Van Schaik ,MP (Michael Peter)	4	1651.7	1864.2	3	1634.6	1793.4	0	0	0	1	1722.4	2076.7
4	Galleid ,S (Stephen)	4	2	0	3	1	-141.7	0	0	0	1	1	425
4	Galleid ,S (Stephen)	4	1632.2	1632.2	3	1636.6	1490.6	0	0	0	1	1718.2	2057.2
5	Holland ,RI (Richard Ingo)	4	3	212.5	2	1	0	1	1	425	1	1	425
5	Holland ,RI (Richard Ingo)	4	1535.3	1747.8	2	1563.2	1535.3	1	1596.8	1960.3	1	1517	1960.3
6	Schutte ,A (Andre)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
6	Schutte ,A (Andre)	3	1909.4	1909.4	3	1915.9	1909.4	0	0	0	0	0	0
7	Levin ,BRL (Benny)	3	2.5	283.3	2	2	425	0	0	0	1	0.5	0
7	Levin ,BRL (Benny)	3	1781.7	2065	2	1781.9	2206.7	0	0	0	1	1798.4	1781.7
8	Blaauw ,GM (Gavin)	3	2.5	283.3	1	0.5	0	0	0	0	2	2	425
8	Blaauw ,GM (Gavin)	3	1603.3	1886.7	1	1541.9	1603.3	0	0	0	2	1701.6	2028.3
9	Baxter ,DJ (David Jarred)	3	1.5	0	1	0.5	0	0	0	0	2	1	0
9	Baxter ,DJ (David Jarred)	3	1682.5	1682.5	1	1676.4	1682.5	0	0	0	2	1651.4	1682.5
10	Wright ,A (Adrian)	2	1	0	2	1	0	0	0	0	0	0	0
10	Wright ,A (Adrian)	2	1540.1	1540.1	2	1537.3	1540.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Meiboom Jnr, G (Gerrit)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms