Chess South Africa Ratings Database

PLAYER PAGE

Personal

Geyser, JM (Jacobus Marthinus)

Chess SA id

108059020

FIDE id

Date of birth

2008-01-22 (U18)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-04-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1393.6	1403.7	1285.5	936
Raw rating	1393.6	1403.7	1285.5	936
Weighted rating	1393.6	1403.7	1285.5	936
Weighted performance	624	499.1	464.5	0
Floor	893.6	903.7	798.8	500
K-factor	36	32	36	40
Min/Max rating change allowed	125.8	124	146.8	241.5
Highest rating	1394.9 2019-05-01	1403.7 2024-02-01	1313.1 2019-07-01	1200 2024-02-01
Highest raw rating	1393.6 2024-02-01	1403.7 2024-02-01	1298.8 2019-08-01	936 2024-02-01
Highest weighted rating	1393.6 2024-04-01	1403.7 2024-04-01	1298.8 2024-03-01	936 2024-11-01
Highest weighted performance	1394.9 2019-05-01	1303.8 2019-05-01	1313.1 2019-07-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1393.6	1403.7	1285.5	936
Analysis
Rating	1393.6	1403.7	1285.5	936
Raw rating	1393.6	1403.7	1285.5	936
Weighted rating	1393.6	1403.7	1285.5
Weighted performance	624	499.1	464.5
K-factor	36	32	36	40
Floor	893.6	903.7	798.8	500
Max/Min rating change allowed	125.8	124	146.8	241.5
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	1393.6	1403.7	1285.5	936
New weighted rating	1393.6	1403.7	1285.5	936
New weighted performance	623.5	498.6	464	0
Temp new rating	1393.6	1403.7	1285.5	936
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1393.6	1403.7	1285.5	936
New K-factor	36	32	36	40
New floor	893.6	903.7	798.8	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	12	6	6
	0	0	0
History	349	219	130

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
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	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	132	88.5	67.05	144.9	1123.4	1268.2
Standard	71	46.5	65.49	131.7	1113	1244.7
Rapid	61	42	68.85	160.2	1135.4	1295.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1393.6	1403.7	1285.5	936
2025-09-01	1393.6	1403.7	1285.5	936
2025-08-01	1393.6	1403.7	1285.5	936
2025-07-01	1393.6	1403.7	1285.5	936
2025-06-01	1393.6	1403.7	1285.5	936
2025-05-01	1393.6	1403.7	1285.5	936
2025-04-01	1393.6	1403.7	1285.5	936
2025-03-01	1393.6	1403.7	1285.5	936
2025-02-01	1393.6	1403.7	1285.5	936
2025-01-01	1393.6	1403.7	1285.5	936
2024-12-01	1393.6	1403.7	1285.5	936
2024-11-01	1393.6	1403.7	1285.5	936
2024-10-01	1393.6	1403.7	1285.5	936
2024-09-01	1393.6	1403.7	1285.5	936
2024-08-01	1393.6	1403.7	1285.5	936
2024-07-01	1393.6	1403.7	1285.5	936
2024-06-01	1393.6	1403.7	1285.5	936
2024-08-01	1393.6	1403.7	1285.5	936
2024-04-01	1393.6	1403.7	1285.5	936
2024-03-01	1393.6	1403.7	1285.5	936
2024-02-01	1393.6	1403.7	1285.5	936
2024-01-01	1393.6	1403.7	1285.5	936
2023-12-01	1393.6	1403.7	1285.5	936
2023-11-01	1393.6	1403.7	1285.5	936

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	Ceres Open 2022 (B)	2022-04-23	2022-04-23	Standard	Cape Winelands (WCW)	6	6	5.5	Yes	Analysis
2	2022 East Dist Individuals (U15)	2022-03-13	2022-03-13	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
3	Cape Winelands Schools Trials 1 2020 (U13 Boys)	2020-02-08	2020-02-08	Rapid	Cape Winelands (WCW)	6	6	5	Yes	Analysis
4	Western Cape Schools Kings & Queens 2019 (Boys)	2019-10-12	2019-10-12	Rapid	West Coast (WCU)	5	5	1	Yes	Analysis
5	Western Cape Top Schools 2019 (U11 Mix)	2019-08-31	2019-09-01	Standard	Cape Winelands (WCW)	5	4	3	Yes	Analysis
6	2019 Western Cape Closed Chess Championships (C)	2019-09-21	2019-09-22	Standard	Cape Winelands (WCW)	6	1	0	Yes	Analysis
7	Cape Winelands Schools - Top Schools 2019 (U11 Mix)	2019-07-27	2019-07-27	Rapid	Cape Winelands (WCW)	5	4	3	Yes	Analysis
8	Western Cape Schools Individuals 2019 (U11 Boys)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	6	4	Yes	Analysis
9	Rhenish Primary Chess Tournament 2019 (U12)	2019-05-11	2019-05-11	Rapid	Cape Winelands (WCW)	7	7	5	Yes	Analysis
10	Cape Winelands Open 2019 (U12)	2019-04-27	2019-04-27	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
11	Cape Winelands Schools Closed 2019 (U11 Boys)	2019-03-16	2019-03-17	Standard	Cape Winelands (WCW)	7	7	5.5	Yes	Analysis
12	Welgemoed Chess Challenge 2019 (U12)	2019-02-23	2019-02-23	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
13	CW Schools Open 2019 (U11 Boys)	2019-02-02	2019-02-02	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
14	South African Junior Team Championships 2018 (U12B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	2.5	Yes	Analysis
15	2018 Western Province League (D)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	11	1	0	Yes	Analysis
16	Paul Roos Open Championship 2018 (C)	2018-09-22	2018-09-23	Standard	Cape Winelands (WCW)	6	3	1.5	Yes	Analysis
17	Western Cape Top Schools 2018 (U11 Mix)	2018-08-25	2018-08-26	Standard	Overberg (WOS)	5	4	2	Yes	Analysis
18	Commonwealth Chess Championships 2018	2018-06-26	2018-07-01	Standard	India (IND)	7	7	3	Yes	Analysis
19	Cape Winelands Schools Chess - Top Schools 2018 (U9+U11 Mix)	2018-07-28	2018-07-28	Rapid	Cape Winelands (WCW)	5	4	3	Yes	Analysis
20	Western Cape Schools Individuals 2018 (U11 Boys)	2018-05-19	2018-05-20	Standard	Overberg (WOS)	6	6	3	Yes	Analysis
21	Rhenish Primary Chess Tournament 2018 (U12)	2018-05-12	2018-05-12	Rapid	Cape Winelands (WCW)	7	7	5.5	Yes	Analysis
22	Cape Winelands Schools Trials 1 2018 (U11 Boys)	2018-03-03	2018-03-03	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
23	Cape Winelands Schools Prestige 2018 (U11 Boys)	2018-03-24	2018-03-25	Standard	Cape Winelands (WCW)	7	7	5.5	Yes	Analysis
24	Welgemoed Chess Challenge 2018 (U12)	2018-02-24	2018-02-24	Rapid	Cape Town (WCT)	5	5	3.5	Yes	Analysis
25	South African Junior Team Championships 2017 (U10A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	7	Yes	Analysis

#	Games	Start				End
1	10	Tournament South African Junior Team Championships 2017				Tournament Welgemoed Chess Challenge 2018
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-02-24	rnd 3	type Rapid	result 0.5
		Opponent Kasper, M (Maselino)				Opponent Copley, H (Hugh)
2	7	Tournament 2022 East Dist Individuals				Tournament Ceres Open 2022
		date 2022-03-13	rnd 6	type Rapid	result 1	date 2022-04-23	rnd 6	type Standard	result 0.5
		Opponent Hlokomane, E (Esona)				Opponent Geyser, F (Freek)
3	7	Tournament Welgemoed Chess Challenge 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-03-17	rnd 6	type Standard	result 0.5
		Opponent Nabela, A (Alutshitshi)				Opponent Rosenberg, W (Wagheed)

#	Games	Start				End
1	13	Tournament South African Junior Team Championships 2017				Tournament Cape Winelands Schools Prestige 2018
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-03-25	rnd 6	type Standard	result 0.5
		Opponent Kasper, M (Maselino)				Opponent Erasmus, E (Earl)
2	6	Tournament Ceres Open 2022				Tournament Ceres Open 2022
		date 2022-04-23	rnd 1	type Standard	result 1	date 2022-04-23	rnd 6	type Standard	result 0.5
		Opponent Dotwana, N (Nelani)				Opponent Geyser, F (Freek)
3	6	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-16	rnd 1	type Standard	result 1	date 2019-03-17	rnd 6	type Standard	result 0.5
		Opponent De Kock, A (Aj)				Opponent Rosenberg, W (Wagheed)

#	Games	Start				End
1	6	Tournament Welgemoed Chess Challenge 2019				Tournament Rhenish Primary Chess Tournament 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-05-11	rnd 5	type Rapid	result 1
		Opponent Nabela, A (Alutshitshi)				Opponent Anathi, N (Ntlahla)
2	6	Tournament Cape Winelands Schools Trials 1 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-03-03	rnd 6	type Rapid	result 1	date 2018-05-12	rnd 5	type Rapid	result 1
		Opponent Goosen, J (Johannes)				Opponent Saoud, J (Jassem)
3	5	Tournament Cape Winelands Schools Trials 1 2020				Tournament 2022 East Dist Individuals
		date 2020-02-08	rnd 5	type Rapid	result 1	date 2022-03-13	rnd 3	type Rapid	result 1
		Opponent Wu, J (Jason)				Opponent Adonis, D (Dylan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament South African Junior Team Championships 2017				Tournament Welgemoed Chess Challenge 2018
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-02-24	rnd 2	type Rapid	result 1
		Opponent Kasper, M (Maselino)				Opponent Laurence, F (Francois)
2	6	Tournament 2022 East Dist Individuals				Tournament Ceres Open 2022
		date 2022-03-13	rnd 6	type Rapid	result 1	date 2022-04-23	rnd 5	type Standard	result 1
		Opponent Hlokomane, E (Esona)				Opponent Oosthuizen, E (Ethan)
3	6	Tournament Welgemoed Chess Challenge 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-03-17	rnd 5	type Standard	result 1
		Opponent Nabela, A (Alutshitshi)				Opponent Geldenhuys, L (Leathon)

#	Games	Start				End
1	12	Tournament South African Junior Team Championships 2017				Tournament Cape Winelands Schools Prestige 2018
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-03-25	rnd 5	type Standard	result 1
		Opponent Kasper, M (Maselino)				Opponent Bester, C (Christoff)
2	5	Tournament Ceres Open 2022				Tournament Ceres Open 2022
		date 2022-04-23	rnd 1	type Standard	result 1	date 2022-04-23	rnd 5	type Standard	result 1
		Opponent Dotwana, N (Nelani)				Opponent Oosthuizen, E (Ethan)
3	5	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-16	rnd 1	type Standard	result 1	date 2019-03-17	rnd 5	type Standard	result 1
		Opponent De Kock, A (Aj)				Opponent Geldenhuys, L (Leathon)

#	Games	Start				End
1	6	Tournament Welgemoed Chess Challenge 2019				Tournament Rhenish Primary Chess Tournament 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-05-11	rnd 5	type Rapid	result 1
		Opponent Nabela, A (Alutshitshi)				Opponent Anathi, N (Ntlahla)
2	5	Tournament Cape Winelands Schools Trials 1 2020				Tournament 2022 East Dist Individuals
		date 2020-02-08	rnd 5	type Rapid	result 1	date 2022-03-13	rnd 3	type Rapid	result 1
		Opponent Wu, J (Jason)				Opponent Adonis, D (Dylan)
3	5	Tournament Cape Winelands Schools Chess - Top Schools 2018				Tournament CW Schools Open 2019
		date 2018-07-28	rnd 2	type Rapid	result 1	date 2019-02-02	rnd 2	type Rapid	result 1
		Opponent Nieuwoudt, N (Noreht)				Opponent Carolus, H (Hayden)

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	Adonis ,D (Dylan)	6	4.5	212.5	1	1	425	5	3.5	170	0	0	0
1	Adonis ,D (Dylan)	6	983.4	1195.9	1	719.4	1408.4	5	1037.7	1153.4	0	0	0
2	Bester ,C (Christoff)	4	4	425	4	4	425	0	0	0	0	0	0
2	Bester ,C (Christoff)	4	1092.4	1517.4	4	979.9	1517.4	0	0	0	0	0	0
3	Zungula ,C (Chulumanco)	3	3	425	1	1	425	2	2	425	0	0	0
3	Zungula ,C (Chulumanco)	3	1177.1	1602.1	1	1100.8	1602.1	2	1277.2	1602.1	0	0	0
4	Rosenberg ,W (Wagheed)	3	0.5	-283.3	1	0.5	0	2	0	-425	0	0	0
4	Rosenberg ,W (Wagheed)	3	1100.8	817.5	1	815.6	1100.8	2	916.4	675.8	0	0	0
5	Wu ,J (Jason)	3	3	425	1	1	425	2	2	425	0	0	0
5	Wu ,J (Jason)	3	1190.2	1615.2	1	1200	1615.2	2	1216.5	1615.2	0	0	0
6	Zenzile ,A (Amahle)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Zenzile ,A (Amahle)	2	1255.8	830.8	2	1232.4	830.8	0	0	0	0	0	0
7	Kasper ,M (Maselino)	2	2	425	2	2	425	0	0	0	0	0	0
7	Kasper ,M (Maselino)	2	961.5	1386.4	2	960.7	1386.4	0	0	0	0	0	0
8	Anderson ,N (Neo)	2	2	425	1	1	425	1	1	425	0	0	0
8	Anderson ,N (Neo)	2	1200	1625	1	1200	1625	1	1200	1625	0	0	0
9	Knoesen ,Z (Zichri)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
9	Knoesen ,Z (Zichri)	2	1178.1	965.6	1	1103.6	1178.1	1	1200	753.1	0	0	0
10	Isaacs ,S (Sean-Patrick)	2	1	0	1	0	-425	1	1	425	0	0	0
10	Isaacs ,S (Sean-Patrick)	2	1085.4	1085.4	1	986.4	660.4	1	857.2	1510.4	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Geyser, JM (Jacobus Marthinus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms