Chess South Africa Ratings Database

PLAYER PAGE

Personal

Zuidersma, MJ (Marthinus Joachim)

Chess SA id

100043580

FIDE id

Date of birth

2000-06-28 (Adult)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-02-10

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1356.5	1400.1	1288.2	1333
Raw rating	1356.5	1400.1	1288.2	1333
Weighted rating	1355.5	1399.1	1288.2	1332.6
Weighted performance	0	0	0	0
Floor	856.5	900.1	788.2	833
K-factor	36	32	36	36
Min/Max rating change allowed	132.7	124.7	146.2	137.2
Highest rating	1569.9 2023-07-01	1569.9 2023-07-01	1288.2 2018-05-01	1333 2024-03-01
Highest raw rating	1356.5 2024-04-01	1400.1 2024-04-01	1288.2 2024-03-01	1333 2024-03-01
Highest weighted rating	1354.7 2025-08-01	1397.6 2025-08-01	1288.2 2018-05-01	1331.5 2025-08-01
Highest weighted performance	1569.9 2023-07-01	1569.9 2023-07-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1356.5	1400.1	1288.2	1333
Analysis
Rating	1356.5	1400.1	1288.2	1333
Raw rating	1356.5	1400.1	1288.2	1333
Weighted rating	1355.5	1399.1	1288.2
Weighted performance	0	0	0
K-factor	36	32	36	36
Floor	856.5	900.1	788.2	833
Max/Min rating change allowed	132.7	124.7	146.2	137.2
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	1356.5	1400.1	1288.2	1333
New weighted rating	1355.8	1399.6	1288.2	1332.9
New weighted performance	0	0	0	0
Temp new rating	1356.5	1400.1	1288.2	1333
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1356.5	1400.1	1288.2	1333
New K-factor	36	32	36	36
New floor	856.5	900.1	788.2	833

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	5	5	0
	5	5	0
	0	0	0
	0	0	0
History	207	200	7

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Sedibeng (GSV)
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	10	6	60	85	1419.8	1504.8
Standard	10	6	60	85	1419.8	1504.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1356.5	1400.1	1288.2	1333
2025-09-01	1356.5	1400.1	1288.2	1333
2025-08-01	1356.5	1400.1	1288.2	1333
2025-07-01	1356.5	1400.1	1288.2	1333
2025-06-01	1356.5	1400.1	1288.2	1333
2025-05-01	1356.5	1400.1	1288.2	1333
2025-04-01	1356.5	1400.1	1288.2	1333
2025-03-01	1356.5	1400.1	1288.2	1333
2025-02-01	1356.5	1400.1	1288.2	1333
2025-01-01	1356.5	1400.1	1288.2	1333
2024-12-01	1356.5	1400.1	1288.2	1333
2024-11-01	1356.5	1400.1	1288.2	1333
2024-10-01	1356.5	1400.1	1288.2	1333
2024-09-01	1356.5	1400.1	1288.2	1333
2024-08-01	1356.5	1400.1	1288.2	1333
2024-07-01	1356.5	1400.1	1288.2	1333
2024-06-01	1356.5	1400.1	1288.2	1333
2024-08-01	1356.5	1400.1	1288.2	1333
2024-04-01	1356.5	1400.1	1288.2	1333
2024-03-01	1337.1	1388.6	1288.2	1333
2024-02-01	1337.1	1388.6	1288.2	1333
2024-01-01	1337.1	1388.6	1288.2	1333
2023-12-01	1336	1345.8	1288.2	1288.2
2023-11-01	1336	1345.8	1288.2	1288.2

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	Laerskool Midvaal Chess Open Section 2024 (A)	2024-02-10	2024-02-10	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
2	Eureka Open 2023 (B)	2023-07-29	2023-07-29	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament Eureka Open 2023				Tournament Laerskool Midvaal Chess Open Section 2024
		date 2023-07-29	rnd 4	type Standard	result 1	date 2024-02-10	rnd 3	type Standard	result 1
		Opponent Mamburu, M (Mutshidzi)				Opponent Moolman, T (Tertius)
2	1	Tournament Eureka Open 2023				Tournament Eureka Open 2023
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-07-29	rnd 1	type Standard	result 1
		Opponent Tlamama, T (Tshepang)				Opponent Tlamama, T (Tshepang)

#	Games	Start				End
1	5	Tournament Eureka Open 2023				Tournament Laerskool Midvaal Chess Open Section 2024
		date 2023-07-29	rnd 4	type Standard	result 1	date 2024-02-10	rnd 3	type Standard	result 1
		Opponent Mamburu, M (Mutshidzi)				Opponent Moolman, T (Tertius)
2	1	Tournament Eureka Open 2023				Tournament Eureka Open 2023
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-07-29	rnd 1	type Standard	result 1
		Opponent Tlamama, T (Tshepang)				Opponent Tlamama, T (Tshepang)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Eureka Open 2023				Tournament Laerskool Midvaal Chess Open Section 2024
		date 2023-07-29	rnd 4	type Standard	result 1	date 2024-02-10	rnd 3	type Standard	result 1
		Opponent Mamburu, M (Mutshidzi)				Opponent Moolman, T (Tertius)
2	1	Tournament Eureka Open 2023				Tournament Eureka Open 2023
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-07-29	rnd 1	type Standard	result 1
		Opponent Tlamama, T (Tshepang)				Opponent Tlamama, T (Tshepang)

#	Games	Start				End
1	5	Tournament Eureka Open 2023				Tournament Laerskool Midvaal Chess Open Section 2024
		date 2023-07-29	rnd 4	type Standard	result 1	date 2024-02-10	rnd 3	type Standard	result 1
		Opponent Mamburu, M (Mutshidzi)				Opponent Moolman, T (Tertius)
2	1	Tournament Eureka Open 2023				Tournament Eureka Open 2023
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-07-29	rnd 1	type Standard	result 1
		Opponent Tlamama, T (Tshepang)				Opponent Tlamama, T (Tshepang)

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	Chakandidano ,N (Nhamo)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Chakandidano ,N (Nhamo)	1	1471.6	1046.6	1	1469	1046.6	0	0	0	0	0	0
2	Tlamama ,T (Tshepang)	1	1	425	1	1	425	0	0	0	0	0	0
2	Tlamama ,T (Tshepang)	1	1512.8	1937.8	1	1516.6	1937.8	0	0	0	0	0	0
3	Moolman ,T (Tertius)	1	1	425	1	1	425	0	0	0	0	0	0
3	Moolman ,T (Tertius)	1	1300	1725	1	1300	1725	0	0	0	0	0	0
4	Morema ,KA (Kgabo)	1	1	425	1	1	425	0	0	0	0	0	0
4	Morema ,KA (Kgabo)	1	1468.9	1893.9	1	1472.6	1893.9	0	0	0	0	0	0
5	Mamburu ,M (Mutshidzi)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mamburu ,M (Mutshidzi)	1	1330.1	1755.1	1	1337	1755.1	0	0	0	0	0	0
6	Jaitas ,W (Worapat)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Jaitas ,W (Worapat)	1	1566.5	1141.5	1	1554.6	1141.5	0	0	0	0	0	0
7	Kgaphola ,M (Moloko)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Kgaphola ,M (Moloko)	1	1598.4	1173.4	1	1633.4	1173.4	0	0	0	0	0	0
8	Mini ,S (Siboniso)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Mini ,S (Siboniso)	1	1564.9	1139.9	1	1563.7	1139.9	0	0	0	0	0	0
9	Zuidersma ,JM (Jean Martin)	1	1	425	1	1	425	0	0	0	0	0	0
9	Zuidersma ,JM (Jean Martin)	1	1178.4	1603.4	1	1173.8	1603.4	0	0	0	0	0	0
10	Swan ,E (Ettienne)	1	1	425	1	1	425	0	0	0	0	0	0
10	Swan ,E (Ettienne)	1	1205.9	1630.9	1	1147.6	1630.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

Zuidersma, MJ (Marthinus Joachim)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms