Chess South Africa Ratings Database

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Personal

Bosman, P (Petrus)

Chess SA id

109087781

FIDE id

Date of birth

2009-07-23 (U18)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-05-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1527	1498.5	1412	818
Raw rating	1527	1498.5	1412	818
Weighted rating	1527	1498.5	1412	818
Weighted performance	894.9	831.4	717.7	0
Floor	1027	1012.9	922.6	500
K-factor	32	32	32	40
Min/Max rating change allowed	104.1	108.4	122.6	285.8
Highest rating	1566.2 2022-05-01	1529.3 2020-03-01	1514.4 2018-02-01	1200 2018-02-01
Highest raw rating	1527 2024-02-01	1512.9 2020-04-01	1422.6 2022-04-01	818 2024-02-01
Highest weighted rating	1527 2024-05-01	1512.9 2022-01-01	1422.6 2024-03-01	818 2024-11-01
Highest weighted performance	1566.2 2022-05-01	1529.3 2020-03-01	1514.4 2018-02-01	1200 2018-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1527	1498.5	1412	818
Analysis
Rating	1527	1498.5	1412	818
Raw rating	1527	1498.5	1412	818
Weighted rating	1527	1498.5	1412
Weighted performance	894.9	831.4	717.7
K-factor	32	32	32	40
Floor	1027	1012.9	922.6	500
Max/Min rating change allowed	104.1	108.4	122.6	285.8
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	1527	1498.5	1412	818
New weighted rating	1527	1498.5	1412	818
New weighted performance	894.4	830.9	717.2	0
Temp new rating	1527	1498.5	1412	818
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1527	1498.5	1412	818
New K-factor	32	32	32	40
New floor	1027	1012.9	922.6	500

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	34	23	11	0
	6	0	6	0
History	283	187	83	13

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	231	159	68.83	160.1	1207.6	1367.7
Standard	169	114	67.46	148.4	1180.9	1329.3
Rapid	55	39.5	71.82	185.5	1284.9	1470.4
Blitz	7	5.5	78.57	242.9	1243.4	1486.3

Date	Main	Standard	Rapid	Blitz
2025-09-30	1527	1498.5	1412	818
2025-09-01	1527	1498.5	1412	818
2025-08-01	1527	1498.5	1412	818
2025-07-01	1527	1498.5	1412	818
2025-06-01	1527	1498.5	1412	818
2025-05-01	1527	1498.5	1412	818
2025-04-01	1527	1498.5	1412	818
2025-03-01	1527	1498.5	1412	818
2025-02-01	1527	1498.5	1412	818
2025-01-01	1527	1498.5	1412	818
2024-12-01	1527	1498.5	1412	818
2024-11-01	1527	1498.5	1412	818
2024-10-01	1527	1498.5	1412	818
2024-09-01	1527	1498.5	1412	818
2024-08-01	1527	1498.5	1412	818
2024-07-01	1527	1498.5	1412	818
2024-06-01	1527	1498.5	1412	818
2024-08-01	1527	1498.5	1412	818
2024-04-01	1527	1498.5	1412	818
2024-03-01	1527	1498.5	1412	818
2024-02-01	1527	1498.5	1412	818
2024-01-01	1527	1498.5	1412	818
2023-12-01	1527	1498.5	1412	818
2023-11-01	1527	1498.5	1412	818

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	Western Cape Schools 2022 (U13 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis
2	OCF Open 2022 (Open)	2022-04-09	2022-04-09	Rapid	Overberg (WOS)	5	5	3.5	Yes	Analysis
3	Metro WP Schools Chess Trials 2022 (U13 Boys)	2022-04-22	2022-04-23	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
4	2022 East Dist Individuals (U13)	2022-03-12	2022-03-12	Rapid	Cape Town (WCT)	6	6	6	Yes	Analysis
5	Kraaifontein Open 2022 (Advanced)	2022-01-07	2022-01-09	Standard	Cape Town (WCT)	6	6	1.5	Yes	Analysis
6	2022 Cape Of Good Hope Open (Advanced)	2022-01-28	2022-01-30	Standard	Cape Town (WCT)	6	5	2	Yes	Analysis
7	Kraaifontein Rapid 2021 (Advanced)	2021-12-11	2021-12-12	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
8	2020 Western Province Open (Elite)	2020-03-07	2020-03-08	Standard	Cape Town (WCT)	6	6	1.5	Yes	Analysis
9	2020 Metro Trials (U11 Boys)	2020-03-13	2020-03-14	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
10	Nelson Mandela Rapid 2020 (Open)	2020-02-01	2020-02-01	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
11	2020 Welgemoed Chess Challenge (U14)	2020-02-29	2020-02-29	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
12	2020 Central District (U11)	2020-02-07	2020-02-08	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
13	OCF Open 2020 (U12)	2020-01-25	2020-01-25	Rapid	Overberg (WOS)	5	5	4.5	Yes	Analysis
14	2019 South African Junior Team Championships (U12A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	5.5	Yes	Analysis
15	Western Cape Schools Kings & Queens 2019 (Boys)	2019-10-12	2019-10-12	Rapid	West Coast (WCU)	5	5	3.5	Yes	Analysis
16	South African Schools Individuals Chess Championships 2019 (U11 Open)	2019-06-18	2019-06-21	Standard	Frances Baard (NCF)	7	7	6	Yes	Analysis
17	Western Cape Schools Individuals 2019 (U11 Boys)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	5	4.5	Yes	Analysis
18	Metro School Chess Closed Individual Trials 2019 (U11 Boys)	2019-03-01	2019-03-02	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
19	2019 South African Junior Closed Chess Championship (U10 Open)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	4.5	Yes	Analysis
20	2019 Central District Schools Trials (U11)	2019-02-01	2019-02-02	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
21	South African Junior Blitz 2018 (U10)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	7	5.5	Yes	Analysis
22	2018 Wild Card Chess Championships (U10 Open)	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	7	7	Yes	Analysis
23	South African Junior Team Championships 2018 (U10A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	6.5	Yes	Analysis
24	Jakes Gerwel Aurecon 2018 (B)	2018-10-13	2018-10-13	Rapid	Cape Town (WCT)	7	7	2.5	Yes	Analysis
25	Courtrai Young Masters 2018 (U10)	2018-10-27	2018-10-27	Rapid	Cape Winelands (WCW)	7	5	4	Yes	Analysis
26	Mossel Bay Open 2018 (B)	2018-09-28	2018-09-29	Standard	Eden (WEG)	6	6	5	Yes	Analysis
27	2018 Swartland Open (A)	2018-09-14	2018-09-15	Standard	West Coast (WCU)	6	6	1	Yes	Analysis
28	Paul Roos Open Championship 2018 (C)	2018-09-22	2018-09-23	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
29	Stellenberg Youth Chess Champs 2018 (B)	2018-06-22	2018-06-23	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
30	Western Cape Schools Individuals 2018 (U9 Boys)	2018-05-19	2018-05-20	Standard	Overberg (WOS)	6	6	5	Yes	Analysis
31	Crossroads Open Chess Championship 2018 (B)	2018-04-27	2018-04-29	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
32	2018 South African Junior Closed Chess Championships (U10 Open)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	5.5	Yes	Analysis
33	2018 WP Schools Closed Trials (U9 Boys)	2018-03-09	2018-03-10	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
34	Welgemoed Chess Challenge 2018 (U10)	2018-02-24	2018-02-24	Rapid	Cape Town (WCT)	5	5	5	Yes	Analysis
35	2018 Central District Trials (U9)	2018-02-02	2018-02-03	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
36	2018 Cape of Good Hope Open Chess Championships (C)	2018-01-26	2018-01-28	Standard	Cape Town (WCT)	6	4	2	Yes	Analysis
37	South African Junior Wildcard Championships 2017 (U10 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
38	South African Junior Team Championships 2017 (U10D)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	6	Yes	Analysis

#	Games	Start				End
1	18	Tournament South African Junior Blitz 2018				Tournament 2019 Central District Schools Trials
		date 2018-12-19	rnd 2	type Blitz	result 1	date 2019-02-02	rnd 4	type Standard	result 1
		Opponent Nortje, D (Dell-Maree)				Opponent Allie, I (Ishmaeel)
2	14	Tournament Nelson Mandela Rapid 2020				Tournament 2020 Welgemoed Chess Challenge
		date 2020-02-01	rnd 4	type Rapid	result 1	date 2020-02-29	rnd 5	type Rapid	result 0.5
		Opponent Abrahams, A (Abraham)				Opponent Goliath, K (Kian)
3	12	Tournament OCF Open 2022				Tournament Western Cape Schools 2022
		date 2022-04-09	rnd 3	type Rapid	result 1	date 2022-05-28	rnd 3	type Standard	result 0.5
		Opponent Badenhorst, A (Allen)				Opponent Prins, R (Reinhart)

#	Games	Start				End
1	21	Tournament Mossel Bay Open 2018				Tournament 2019 Central District Schools Trials
		date 2018-09-29	rnd 4	type Standard	result 1	date 2019-02-02	rnd 4	type Standard	result 1
		Opponent Jones, C (Cailynn)				Opponent Allie, I (Ishmaeel)
2	10	Tournament 2019 South African Junior Closed Chess Championship				Tournament South African Schools Individuals Chess Championships 2019
		date 2019-03-22	rnd 9	type Standard	result 1	date 2019-06-19	rnd 4	type Standard	result 1
		Opponent Byliefeldt, L (Leroux)				Opponent Lielieveld, J (Jadrian)
3	9	Tournament Metro WP Schools Chess Trials 2022				Tournament Western Cape Schools 2022
		date 2022-04-22	rnd 1	type Standard	result 1	date 2022-05-28	rnd 3	type Standard	result 0.5
		Opponent Ndzotyana, LI (Lwazi)				Opponent Prins, R (Reinhart)

#	Games	Start				End
1	10	Tournament Kraaifontein Rapid 2021				Tournament OCF Open 2022
		date 2021-12-12	rnd 4	type Rapid	result 1	date 2022-04-09	rnd 1	type Rapid	result 1
		Opponent Mavenge, K (Kay)				Opponent Mavusa, C (Carlo)
2	9	Tournament Nelson Mandela Rapid 2020				Tournament Kraaifontein Rapid 2021
		date 2020-02-01	rnd 4	type Rapid	result 1	date 2021-12-11	rnd 1	type Rapid	result 0.5
		Opponent Abrahams, A (Abraham)				Opponent Pietersen, W (Willmore)
3	8	Tournament Western Cape Schools Kings & Queens 2019				Tournament OCF Open 2020
		date 2019-10-12	rnd 3	type Rapid	result 0.5	date 2020-01-25	rnd 5	type Rapid	result 0.5
		Opponent Dicks, D (Drake)				Opponent Snyders, M (Meya)

#	Games	Start				End
1	6	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 2	type Blitz	result 1	date 2018-12-19	rnd 7	type Blitz	result 1
		Opponent Nortje, D (Dell-Maree)				Opponent Sathish, A (Abinavah)

#	Games	Start				End
1	11	Tournament 2018 Wild Card Chess Championships				Tournament 2019 Central District Schools Trials
		date 2018-12-21	rnd 1	type Standard	result 1	date 2019-02-02	rnd 4	type Standard	result 1
		Opponent Mclaughlin, M (Mathew)				Opponent Allie, I (Ishmaeel)
2	8	Tournament 2018 Central District Trials				Tournament 2018 WP Schools Closed Trials
		date 2018-02-03	rnd 5	type Standard	result 1	date 2018-03-10	rnd 2	type Standard	result 1
		Opponent Jacobs, S (Sumayah)				Opponent Palmer, J (Jesse)
3	7	Tournament 2022 East Dist Individuals				Tournament OCF Open 2022
		date 2022-03-12	rnd 1	type Rapid	result 1	date 2022-04-09	rnd 1	type Rapid	result 1
		Opponent Kai, R (Rigby)				Opponent Mavusa, C (Carlo)

#	Games	Start				End
1	11	Tournament 2018 Wild Card Chess Championships				Tournament 2019 Central District Schools Trials
		date 2018-12-21	rnd 1	type Standard	result 1	date 2019-02-02	rnd 4	type Standard	result 1
		Opponent Mclaughlin, M (Mathew)				Opponent Allie, I (Ishmaeel)
2	9	Tournament Mossel Bay Open 2018				Tournament South African Junior Team Championships 2018
		date 2018-09-29	rnd 4	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Jones, C (Cailynn)				Opponent Van Der Merwe, L (Lucas)
3	5	Tournament 2020 Metro Trials				Tournament 2020 Metro Trials
		date 2020-03-13	rnd 1	type Standard	result 1	date 2020-03-14	rnd 5	type Standard	result 1
		Opponent Steininger, A (Alexander)				Opponent Olkers, D (Declan)

#	Games	Start				End
1	10	Tournament Kraaifontein Rapid 2021				Tournament OCF Open 2022
		date 2021-12-12	rnd 4	type Rapid	result 1	date 2022-04-09	rnd 1	type Rapid	result 1
		Opponent Mavenge, K (Kay)				Opponent Mavusa, C (Carlo)
2	6	Tournament Western Cape Schools Kings & Queens 2019				Tournament OCF Open 2020
		date 2019-10-12	rnd 4	type Rapid	result 1	date 2020-01-25	rnd 4	type Rapid	result 1
		Opponent De Vos, ES (Eustace Steyn)				Opponent Johnson, L (Lakeisha)
3	5	Tournament Nelson Mandela Rapid 2020				Tournament 2020 Welgemoed Chess Challenge
		date 2020-02-01	rnd 4	type Rapid	result 1	date 2020-02-29	rnd 2	type Rapid	result 1
		Opponent Abrahams, A (Abraham)				Opponent Veliso, A (Amyoli)

#	Games	Start				End
1	4	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 2	type Blitz	result 1	date 2018-12-19	rnd 5	type Blitz	result 1
		Opponent Nortje, D (Dell-Maree)				Opponent Naidoo, K (Kirthan)
2	1	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 7	type Blitz	result 1	date 2018-12-19	rnd 7	type Blitz	result 1
		Opponent Sathish, A (Abinavah)				Opponent Sathish, A (Abinavah)

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	Bosman ,L (Louis Willem)	5	5	425	4	4	425	1	1	425	0	0	0
1	Bosman ,L (Louis Willem)	5	1257	1682	4	1244.1	1682	1	1200	1682	0	0	0
2	Spiller ,A (Arin)	4	3.5	318.8	4	3.5	318.8	0	0	0	0	0	0
2	Spiller ,A (Arin)	4	901.5	1220.2	4	908.3	1220.2	0	0	0	0	0	0
3	Spiller ,C (Caden)	4	0.5	-318.8	4	0.5	-318.8	0	0	0	0	0	0
3	Spiller ,C (Caden)	4	1210.3	891.5	4	1170.2	891.5	0	0	0	0	0	0
4	Baruch ,L (Liam)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
4	Baruch ,L (Liam)	3	1409.9	1126.5	3	1384	1126.5	0	0	0	0	0	0
5	Jones ,E (Edward)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
5	Jones ,E (Edward)	3	1188.7	1188.7	3	1180.1	1188.7	0	0	0	0	0	0
6	Olkers ,D (Declan)	3	2.5	283.3	2	1.5	212.5	1	1	425	0	0	0
6	Olkers ,D (Declan)	3	1293.1	1576.5	2	1361.3	1505.6	1	1096.8	1718.1	0	0	0
7	Davids ,R (Rafael)	3	2	141.7	2	1	0	1	1	425	0	0	0
7	Davids ,R (Rafael)	3	1307.6	1449.2	2	1207.6	1307.6	1	1325.2	1732.6	0	0	0
8	Spamers ,V (Vinaldo)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
8	Spamers ,V (Vinaldo)	2	979.2	1191.8	2	966.8	1191.8	0	0	0	0	0	0
9	Eaton ,M (Morgan)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
9	Eaton ,M (Morgan)	2	976.8	1189.2	2	972.2	1189.2	0	0	0	0	0	0
10	Kushar ,T (Tristan)	2	1	0	2	1	0	0	0	0	0	0	0
10	Kushar ,T (Tristan)	2	1091.5	1091.5	2	1085.6	1091.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Bosman, P (Petrus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms