Chess South Africa Ratings Database

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Personal

Geyser, K (Kobus)

Chess SA id

106078134

FIDE id

Date of birth

2006-04-12 (U20)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1752.6

Item	Main	Standard	Rapid	Blitz
Rating	1752.4	1740.8	1405.8	1129
Raw rating	1752.4	1740.8	1405.8	1129
Weighted rating	1725.8	1710.7	1405.8	1129
Weighted performance	1370.6	1362.3	0	0
Floor	1252.4	1240.8	905.8	629
K-factor	28	28	32	40
Min/Max rating change allowed	75.5	76.7	123.7	183.5
Highest rating	1823.8 2024-09-01	1820.7 2024-09-01	1405.8 2024-02-01	1200 2024-02-01
Highest raw rating	1752.4 2025-11-01	1740.8 2025-11-01	1405.8 2024-02-01	1129 2024-02-01
Highest weighted rating	1725.8 2025-11-01	1710.7 2025-11-01	1405.8 2025-07-01	1129 2024-11-01
Highest weighted performance	1823.8 2024-09-01	1820.7 2024-09-01	1401.5 2022-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1752.4	1740.8	1405.8	1129
Analysis
Rating	1752.4	1740.8	1405.8	1129
Raw rating	1752.4	1740.8	1405.8	1129
Weighted rating	1725.8	1710.7	1405.8
Weighted performance	1370.6	1362.3	0
K-factor	28	28	32	40
Floor	1252.4	1240.8	905.8	629
Max/Min rating change allowed	75.5	76.7	123.7	183.5
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	1752.4	1740.8	1405.8	1129
New weighted rating	1728.3	1713.6	1405.8	1129
New weighted performance	1360.6	1352.4	0	0
Temp new rating	1752.4	1740.8	1405.8	1129
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1752.4	1740.8	1405.8	1129
New K-factor	28	28	32	40
New floor	1252.4	1240.8	905.8	629

Item	Main	Standard	Rapid
	0	0	0
	6	6	0
	12	12	0
	61	56	5
	48	43	5
	19	12	7
History	382	348	34

Games since
	Main 22	Standard 22		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	6	4.5	75	212.5	1658.1	1870.6
Standard	6	4.5	75	212.5	1658.1	1870.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	286	196	68.53	157.5	1371.7	1529.2
Standard	263	176	66.92	143.8	1380.3	1524.2
Rapid	23	20	86.96	314.1	1272.4	1586.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1752.4	1740.8	1405.8	1129
2025-09-30	1726.1	1712.6	1405.8	1129
2025-09-01	1726.1	1712.6	1405.8	1129
2025-08-01	1726.1	1712.6	1405.8	1129
2025-07-01	1726.1	1712.6	1405.8	1129
2025-06-01	1726.1	1712.6	1405.8	1129
2025-05-01	1726.1	1712.6	1405.8	1129
2025-04-01	1726.1	1712.6	1405.8	1129
2025-03-01	1726.1	1712.6	1405.8	1129
2025-02-01	1726.1	1712.6	1405.8	1129
2025-01-01	1726.1	1709.2	1405.8	1129
2024-12-01	1726.1	1709.2	1405.8	1129
2024-11-01	1730.3	1712	1405.8	1129
2024-10-01	1730.3	1712	1405.8	1129
2024-09-01	1710.7	1691.3	1405.8	1129
2024-08-01	1710.7	1691.3	1405.8	1129
2024-07-01	1710.7	1691.3	1405.8	1129
2024-09-01	1710.7	1691.3	1405.8	1129
2024-05-01	1710.7	1691.3	1405.8	1129
2024-04-01	1710.7	1691.3	1405.8	1129
2024-03-01	1710.7	1691.3	1405.8	1129
2024-02-01	1717.9	1698.6	1405.8	1129
2024-01-01	1717.9	1698.6	1405.8	1129
2023-12-01	1717.9	1698.6	1405.8	1129

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	Cape Town Chess Federation Club League 2025 (A)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	6	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Federation Club League 2025 (A)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	6	4.5	Yes	Analysis
2	Paarl Boys' High Chess Festival 2024 (Elite)	2024-10-04	2024-10-05	Standard	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
3	CT League 2024 (A)	2024-07-20	2024-09-07	Standard	Cape Town (WCT)	11	1	1	Yes	Analysis
4	Grey College Team Championship 2024 (A)	2024-02-23	2024-02-24	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
5	2023 Western Cape Rural Cup (U18)	2023-12-09	2023-12-10	Standard	Cape Winelands (WCW)	5	4	3	Yes	Analysis
6	Paarl Boys High Chess Festival 2023 (Elite Division)	2023-10-13	2023-10-14	Standard	Cape Winelands (WCW)	6	6	5	Yes	Analysis
7	Western Cape Top Schools 2023 (U18 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
8	WP Club League 2023 (B)	2023-07-29	2023-09-09	Standard	Cape Town (WCT)	11	3	3	Yes	Analysis
9	CW Top Schools 2023 (U18 Mix)	2023-08-26	2023-08-26	Rapid	Cape Winelands (WCW)	5	5	4.5	Yes	Analysis
10	Cape Winelands Open 2023 (Championship)	2023-07-22	2023-07-23	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
11	2023 SA Schools Winter Games (U18 Open)	2023-07-04	2023-07-06	Standard	West Rand (GWR)	7	7	5	Yes	Analysis
12	Western Cape HS Individuals 2023 (U17 Boys)	2023-04-01	2023-04-02	Standard	Cape Town (WCT)	6	5	4.5	Yes	Analysis
13	Western Cape Inter Regional 2023 (Junior Boys)	2023-03-18	2023-03-19	Standard	Eden (WEG)	5	4	2	Yes	Analysis
14	Cape Winelands Schools Prestige 2023 (U17 Boys)	2023-03-11	2023-03-11	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
15	Cape Winelands Schools Chess - Trials 1 2023 (U17 Boys)	2023-02-25	2023-02-25	Standard	Cape Winelands (WCW)	5	5	5	Yes	Analysis
16	Grey College Team Championship 2023 (A)	2023-02-03	2023-02-04	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
17	Western Cape Top Schools 2022 (U18 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
18	Western Cape Closed Championship 2022 (Championship)	2022-09-24	2022-09-25	Standard	Cape Winelands (WCW)	6	6	1.5	Yes	Analysis
19	Cape Winelands Schools Top Schools 2022 (U18 Mix)	2022-08-27	2022-08-27	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
20	South African Open 2022 (Championship)	2022-07-09	2022-07-17	Standard	Cape Town (WCT)	11	11	3	Yes	Analysis
21	Western Cape Schools Chess 2022 (U18 Boys)	2022-05-07	2022-05-08	Standard	Eden (WEG)	6	6	4	Yes	Analysis
22	Western Cape Inter Region Cup 2021 (Junior)	2022-03-04	2022-03-06	Standard	West Coast (WCU)	5	4	2.5	Yes	Analysis
23	Central Winelands Schools Individual Trials 2022 (U18 Boys)	2022-02-19	2022-02-19	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
24	Kraaifontein Open 2022 (Advanced)	2022-01-07	2022-01-09	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
25	Western Cape Club Championships 2021 (A)	2021-10-15	2021-10-17	Standard	Eden (WEG)	6	6	3.5	Yes	Analysis
26	Eden Chess League 2021 (2nd Division)	2021-09-18	2021-09-18	Rapid	Eden (WEG)	7	7	6.5	Yes	Analysis
27	Eden Closed 2021 (Men)	2021-03-26	2021-03-28	Standard	Eden (WEG)	6	6	2.5	Yes	Analysis
28	Eden Schools Closed Trials 1 2020 (U15 Boys)	2020-03-07	2020-03-07	Standard	Eden (WEG)	5	5	5	Yes	Analysis
29	Oudtshoorn Proewe 1 2020 (O15)	2020-02-15	2020-02-15	Standard	Eden (WEG)	5	5	5	Yes	Analysis
30	2019 South African Junior Team Championships (U14B)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	6.5	Yes	Analysis
31	George Open Chess Tournament 2019 (A)	2019-11-30	2019-12-01	Standard	Eden (WEG)	6	6	4	Yes	Analysis
32	2019 Western Cape Club Championship (A+B)	2019-10-25	2019-10-27	Standard	Overberg (WOS)	6	6	3	Yes	Analysis
33	Eden Chess League 2019 (Premier)	2019-08-17	2019-08-24	Standard	Eden (WEG)	5	5	5	Yes	Analysis
34	Eden Trials 3 2019 (U14 Open)	2019-05-11	2019-05-11	Standard	Eden (WEG)	5	5	4	Yes	Analysis
35	Western Cape Schools Individuals 2019 (U13 Boys)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	6	5	Yes	Analysis
36	Eden Trials 2 2019 (U14 Open)	2019-04-13	2019-04-13	Standard	Eden (WEG)	5	5	5	Yes	Analysis
37	Cape Winelands Open 2019 (Elite)	2019-04-27	2019-04-27	Standard	Cape Winelands (WCW)	5	5	1.5	Yes	Analysis
38	Eden Trials 1 2019 (U14 Open)	2019-03-02	2019-03-02	Standard	Eden (WEG)	5	5	4	Yes	Analysis
39	Oudtshoorn Trials 2 2019 (U14)	2019-02-09	2019-02-09	Standard	Eden (WEG)	5	5	5	Yes	Analysis
40	Oudtshoorn Trials 1 2019 (U14)	2019-01-19	2019-01-19	Standard	Eden (WEG)	5	5	4.5	Yes	Analysis
41	South African Junior Team Championships 2018 (U14A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	1.5	Yes	Analysis
42	Mossel Bay Open 2018 (A)	2018-09-28	2018-09-29	Standard	Eden (WEG)	6	6	2.5	Yes	Analysis
43	Paul Roos Open Championship 2018 (A)	2018-09-21	2018-09-23	Standard	Cape Winelands (WCW)	6	6	1.5	Yes	Analysis
44	Calitzdorp Ope 2018	2018-05-05	2018-05-05	Standard	Eden (WEG)	5	5	3	Yes	Analysis
45	Western Cape Schools Individuals 2018 (U13 Boys)	2018-05-19	2018-05-20	Standard	Overberg (WOS)	6	6	3	Yes	Analysis
46	Knysna Knights April 2018	2018-04-27	2018-04-27	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
47	EDENSC Closed 2 2018 (U14 Open)	2018-04-14	2018-04-14	Standard	Eden (WEG)	5	5	5	Yes	Analysis
48	2018 South African Junior Closed Chess Championships (U12 Open)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	6.5	Yes	Analysis
49	2018 Western Province Open (B)	2018-03-02	2018-03-04	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
50	EDENSC Closed 1 2018 (U14 Boys)	2018-03-10	2018-03-10	Standard	Eden (WEG)	5	5	5	Yes	Analysis
51	South African Junior Team Championships 2017 (U12B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	5.5	Yes	Analysis

#	Games	Start				End
1	19	Tournament George Open Chess Tournament 2019				Tournament Eden Schools Closed Trials 1 2020
		date 2019-12-01	rnd 5	type Standard	result 1	date 2020-03-07	rnd 5	type Standard	result 1
		Opponent Fourie, C (Corne)				Opponent Kleinhans, T (Theo)
2	16	Tournament South African Junior Team Championships 2017				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-01-08	rnd 7	type Standard	result 0.5	date 2018-04-03	rnd 4	type Standard	result 1
		Opponent Fittock, L (Luke)				Opponent Van Schaik, M (Migael)
3	13	Tournament South African Junior Team Championships 2018				Tournament Eden Trials 1 2019
		date 2018-12-20	rnd 7	type Standard	result 0.5	date 2019-03-02	rnd 2	type Standard	result 1
		Opponent Sparg, N (Nathan)				Opponent Valentine, J (Jaden)

#	Games	Start				End
1	19	Tournament George Open Chess Tournament 2019				Tournament Eden Schools Closed Trials 1 2020
		date 2019-12-01	rnd 5	type Standard	result 1	date 2020-03-07	rnd 5	type Standard	result 1
		Opponent Fourie, C (Corne)				Opponent Kleinhans, T (Theo)
2	16	Tournament South African Junior Team Championships 2017				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-01-08	rnd 7	type Standard	result 0.5	date 2018-04-03	rnd 4	type Standard	result 1
		Opponent Fittock, L (Luke)				Opponent Van Schaik, M (Migael)
3	13	Tournament South African Junior Team Championships 2018				Tournament Eden Trials 1 2019
		date 2018-12-20	rnd 7	type Standard	result 0.5	date 2019-03-02	rnd 2	type Standard	result 1
		Opponent Sparg, N (Nathan)				Opponent Valentine, J (Jaden)

#	Games	Start				End
1	17	Tournament Eden Chess League 2021				Tournament CW Top Schools 2023
		date 2021-09-18	rnd 1	type Rapid	result 1	date 2023-08-26	rnd 5	type Rapid	result 1
		Opponent Robertson, D (Dimitri)				Opponent Potgieter, W (Werne)
2	3	Tournament Knysna Knights April 2018				Tournament Knysna Knights April 2018
		date 2018-04-27	rnd 1	type Rapid	result 1	date 2018-04-27	rnd 3	type Rapid	result 1
		Opponent Swart, C (Calvin)				Opponent Gandhi, E (Eleesh)
3	1	Tournament Knysna Knights April 2018				Tournament Knysna Knights April 2018
		date 2018-04-27	rnd 5	type Rapid	result 1	date 2018-04-27	rnd 5	type Rapid	result 1
		Opponent Meyer, PJ (Pravin)				Opponent Meyer, PJ (Pravin)

No games found.

#	Games	Start				End

#	Games	Start				End
1	14	Tournament 2019 South African Junior Team Championships				Tournament Eden Schools Closed Trials 1 2020
		date 2020-01-06	rnd 4	type Standard	result 1	date 2020-03-07	rnd 5	type Standard	result 1
		Opponent Davids, R (Rafael)				Opponent Kleinhans, T (Theo)
2	11	Tournament 2018 Western Province Open				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-03-04	rnd 5	type Standard	result 1	date 2018-04-03	rnd 4	type Standard	result 1
		Opponent Boshoff, C (Chris)				Opponent Van Schaik, M (Migael)
3	10	Tournament Western Cape Schools Individuals 2019				Tournament Eden Chess League 2019
		date 2019-05-18	rnd 2	type Standard	result 1	date 2019-08-24	rnd 5	type Standard	result 1
		Opponent Kruger, S (Sachin)				Opponent Plaatjies, S (Shaamilah)

#	Games	Start				End
1	14	Tournament 2019 South African Junior Team Championships				Tournament Eden Schools Closed Trials 1 2020
		date 2020-01-06	rnd 4	type Standard	result 1	date 2020-03-07	rnd 5	type Standard	result 1
		Opponent Davids, R (Rafael)				Opponent Kleinhans, T (Theo)
2	11	Tournament 2018 Western Province Open				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-03-04	rnd 5	type Standard	result 1	date 2018-04-03	rnd 4	type Standard	result 1
		Opponent Boshoff, C (Chris)				Opponent Van Schaik, M (Migael)
3	10	Tournament Western Cape Schools Individuals 2019				Tournament Eden Chess League 2019
		date 2019-05-18	rnd 2	type Standard	result 1	date 2019-08-24	rnd 5	type Standard	result 1
		Opponent Kruger, S (Sachin)				Opponent Plaatjies, S (Shaamilah)

#	Games	Start				End
1	12	Tournament Eden Chess League 2021				Tournament CW Top Schools 2023
		date 2021-09-18	rnd 3	type Rapid	result 1	date 2023-08-26	rnd 2	type Rapid	result 1
		Opponent Adams, J (Jason)				Opponent Palmer, C (Cheslin)
2	3	Tournament Knysna Knights April 2018				Tournament Knysna Knights April 2018
		date 2018-04-27	rnd 1	type Rapid	result 1	date 2018-04-27	rnd 3	type Rapid	result 1
		Opponent Swart, C (Calvin)				Opponent Gandhi, E (Eleesh)
3	2	Tournament CW Top Schools 2023				Tournament CW Top Schools 2023
		date 2023-08-26	rnd 4	type Rapid	result 1	date 2023-08-26	rnd 5	type Rapid	result 1
		Opponent Melrose, Q (Qiaam)				Opponent Potgieter, W (Werne)

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	Kariem ,S (Shakir)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
1	Kariem ,S (Shakir)	4	1466	1678.5	4	1442.1	1678.5	0	0	0	0	0	0
2	Harmse ,D (Deon)	4	4	425	4	4	425	0	0	0	0	0	0
2	Harmse ,D (Deon)	4	1476.9	1901.9	4	1457.8	1901.9	0	0	0	0	0	0
3	Grobler ,Z (Zandre)	4	3.5	318.8	3	2.5	283.3	1	1	425	0	0	0
3	Grobler ,Z (Zandre)	4	1346.5	1665.2	3	1335.4	1629.8	1	1410	1771.5	0	0	0
4	Van Der Merwe ,A (Alexander)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
4	Van Der Merwe ,A (Alexander)	3	1738.7	1455.3	3	1757.6	1455.3	0	0	0	0	0	0
5	Thakersee ,A (Akshay)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
5	Thakersee ,A (Akshay)	3	1426.2	1426.2	3	1423.5	1426.2	0	0	0	0	0	0
6	Davids ,R (Rafael)	3	3	425	3	3	425	0	0	0	0	0	0
6	Davids ,R (Rafael)	3	1432.9	1857.9	3	1405.8	1857.9	0	0	0	0	0	0
7	Petersen ,JD (John-Wayne Dwight)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
7	Petersen ,JD (John-Wayne Dwight)	3	1187	1470.3	3	1184.6	1470.3	0	0	0	0	0	0
8	Palmer ,C (Cheslin)	3	3	425	2	2	425	1	1	425	0	0	0
8	Palmer ,C (Cheslin)	3	1439.4	1864.4	2	1397.1	1864.4	1	1292.5	1864.4	0	0	0
9	Lirafu ,S (Siyambonga)	2	1	0	2	1	0	0	0	0	0	0	0
9	Lirafu ,S (Siyambonga)	2	1558.8	1558.8	2	1435.7	1558.8	0	0	0	0	0	0
10	Coetsee ,W (Wilco)	2	2	425	2	2	425	0	0	0	0	0	0
10	Coetsee ,W (Wilco)	2	1224.7	1649.7	2	1219.2	1649.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Geyser, K (Kobus)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms