Chess South Africa Ratings Database

PLAYER PAGE

Personal

O'Brien, S (Seth)

Chess SA id

1050161246

FIDE id

Date of birth

2005-02-16 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-06-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1358.8	1319.9	1258	1200
Raw rating	1358.8	1319.9	1258	1200
Weighted rating	1352.9	1316.3	1255.8	1200
Weighted performance	0	0	0	0
Floor	858.8	819.9	758	700
K-factor	36	36	36	36
Min/Max rating change allowed	132.2	139.8	152.7	165.8
Highest rating	1449.1 2024-03-01	1463.3 2024-03-01	1302.3 2023-12-01	1200 2018-10-01
Highest raw rating	1358.8 2024-07-01	1319.9 2024-04-01	1258 2024-07-01	1200 2024-03-01
Highest weighted rating	1347.8 2025-08-01	1312.5 2025-08-01	1254 2025-08-01	1200 2018-10-01
Highest weighted performance	1449.1 2024-03-01	1463.3 2024-03-01	1302.3 2023-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1358.8	1319.9	1258	1200
Analysis
Rating	1358.8	1319.9	1258	1200
Raw rating	1358.8	1319.9	1258	1200
Weighted rating	1352.9	1316.3	1255.8
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	858.8	819.9	758	700
Max/Min rating change allowed	132.2	139.8	152.7	165.8
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	1358.8	1319.9	1258	1200
New weighted rating	1354.8	1317.7	1256.4	1200
New weighted performance	0	0	0	0
Temp new rating	1358.8	1319.9	1258	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1358.8	1319.9	1258	1200
New K-factor	36	36	36	36
New floor	858.8	819.9	758	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	15	10	5
	10	3	7
	0	0	0
	0	0	0
History	25	13	12

Games since
	Main 22	Standard 10		Rapid 12		Blitz 0
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
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	25	16	64	119	1352	1471
Standard	13	8	61.54	98.1	1372.9	1471
Rapid	12	8	66.67	141.7	1329.3	1471
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1358.8	1319.9	1258	1200
2025-09-01	1358.8	1319.9	1258	1200
2025-08-01	1358.8	1319.9	1258	1200
2025-07-01	1358.8	1319.9	1258	1200
2025-06-01	1358.8	1319.9	1258	1200
2025-05-01	1358.8	1319.9	1258	1200
2025-04-01	1358.8	1319.9	1258	1200
2025-03-01	1358.8	1319.9	1258	1200
2025-02-01	1358.8	1319.9	1258	1200
2025-01-01	1358.8	1319.9	1258	1200
2024-12-01	1358.8	1319.9	1258	1200
2024-11-01	1358.8	1319.9	1258	1200
2024-10-01	1358.8	1319.9	1258	1200
2024-09-01	1358.8	1319.9	1258	1200
2024-08-01	1358.8	1319.9	1258	1200
2024-07-01	1358.8	1319.9	1258	1200
2024-06-01	1333.2	1319.9	1240.7	1200
2024-08-01	1333.2	1319.9	1240.7	1200
2024-04-01	1333.2	1319.9	1240.7	1200
2024-03-01	1294.4	1267.7	1240.7	1200
2024-02-01	1294.4	1267.7	1240.7	1200
2024-01-01	1257.9	1218	1240.7	1200
2023-12-01	1257.9	1218	1240.7	1200
2023-11-01	1214.9	1218	1200	1200

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	Chess Molecules Open Chess Tournament 2024 (Parents/Adults)	2024-06-15	2024-06-15	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
2	1st Knights Open Tournament 2024 (C)	2024-03-23	2024-03-23	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
3	2024 Tshwane Chess OPEN Registration Tournament (C1)	2024-01-27	2024-01-27	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
4	Ekurhuleni North Chess Club 2023 (B)	2023-12-09	2023-12-09	Rapid	Ekurhuleni (GE)	7	7	5	Yes	Analysis
5	2023 Gauteng Top Schools (U19 Mixed)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	3	1.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament 2024 Tshwane Chess OPEN Registration Tournament				Tournament 1st Knights Open Tournament 2024
		date 2024-01-27	rnd 5	type Standard	result 1	date 2024-03-23	rnd 4	type Standard	result 0.5
		Opponent Buchner, E (Emil)				Opponent Ambrose, I (Isabella)
2	4	Tournament 2023 Gauteng Top Schools				Tournament Ekurhuleni North Chess Club 2023
		date 2023-08-19	rnd 2	type Standard	result 1	date 2023-12-09	rnd 2	type Rapid	result 1
		Opponent Mohjomo, K (Kearabetsoe)				Opponent Van Loggerenberg, M (Marcus)
3	3	Tournament Ekurhuleni North Chess Club 2023				Tournament 2024 Tshwane Chess OPEN Registration Tournament
		date 2023-12-09	rnd 6	type Rapid	result 1	date 2024-01-27	rnd 1	type Standard	result 1
		Opponent Kale, A (Akhona)				Opponent Truscott, A (Adriaan)

#	Games	Start				End
1	5	Tournament 2024 Tshwane Chess OPEN Registration Tournament				Tournament 1st Knights Open Tournament 2024
		date 2024-01-27	rnd 5	type Standard	result 1	date 2024-03-23	rnd 4	type Standard	result 0.5
		Opponent Buchner, E (Emil)				Opponent Ambrose, I (Isabella)
2	3	Tournament 2023 Gauteng Top Schools				Tournament 2024 Tshwane Chess OPEN Registration Tournament
		date 2023-08-19	rnd 2	type Standard	result 1	date 2024-01-27	rnd 1	type Standard	result 1
		Opponent Mohjomo, K (Kearabetsoe)				Opponent Truscott, A (Adriaan)
3	1	Tournament 2024 Tshwane Chess OPEN Registration Tournament				Tournament 2024 Tshwane Chess OPEN Registration Tournament
		date 2024-01-27	rnd 3	type Standard	result 1	date 2024-01-27	rnd 3	type Standard	result 1
		Opponent Van De Venter, Z (Zandre)				Opponent Van De Venter, Z (Zandre)

#	Games	Start				End
1	4	Tournament Ekurhuleni North Chess Club 2023				Tournament Chess Molecules Open Chess Tournament 2024
		date 2023-12-09	rnd 6	type Rapid	result 1	date 2024-06-15	rnd 2	type Rapid	result 1
		Opponent Kale, A (Akhona)				Opponent Mnguni, N (Nqobile)
2	2	Tournament Ekurhuleni North Chess Club 2023				Tournament Ekurhuleni North Chess Club 2023
		date 2023-12-09	rnd 1	type Rapid	result 1	date 2023-12-09	rnd 2	type Rapid	result 1
		Opponent De Swardt, S (Stephan)				Opponent Van Loggerenberg, M (Marcus)
3	1	Tournament Chess Molecules Open Chess Tournament 2024				Tournament Chess Molecules Open Chess Tournament 2024
		date 2024-06-15	rnd 5	type Rapid	result 1	date 2024-06-15	rnd 5	type Rapid	result 1
		Opponent Hutamo, S (Sibani)				Opponent Hutamo, S (Sibani)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament 2024 Tshwane Chess OPEN Registration Tournament				Tournament 1st Knights Open Tournament 2024
		date 2024-01-27	rnd 5	type Standard	result 1	date 2024-03-23	rnd 3	type Standard	result 1
		Opponent Buchner, E (Emil)				Opponent Mkhasibe, NZ (Nobuhle)
2	3	Tournament Ekurhuleni North Chess Club 2023				Tournament 2024 Tshwane Chess OPEN Registration Tournament
		date 2023-12-09	rnd 6	type Rapid	result 1	date 2024-01-27	rnd 1	type Standard	result 1
		Opponent Kale, A (Akhona)				Opponent Truscott, A (Adriaan)
3	2	Tournament Chess Molecules Open Chess Tournament 2024				Tournament Chess Molecules Open Chess Tournament 2024
		date 2024-06-15	rnd 1	type Rapid	result 1	date 2024-06-15	rnd 2	type Rapid	result 1
		Opponent Mgenge, Z (Zimisele)				Opponent Mnguni, N (Nqobile)

#	Games	Start				End
1	4	Tournament 2024 Tshwane Chess OPEN Registration Tournament				Tournament 1st Knights Open Tournament 2024
		date 2024-01-27	rnd 5	type Standard	result 1	date 2024-03-23	rnd 3	type Standard	result 1
		Opponent Buchner, E (Emil)				Opponent Mkhasibe, NZ (Nobuhle)
2	1	Tournament 2024 Tshwane Chess OPEN Registration Tournament				Tournament 2024 Tshwane Chess OPEN Registration Tournament
		date 2024-01-27	rnd 3	type Standard	result 1	date 2024-01-27	rnd 3	type Standard	result 1
		Opponent Van De Venter, Z (Zandre)				Opponent Van De Venter, Z (Zandre)
3	1	Tournament 2024 Tshwane Chess OPEN Registration Tournament				Tournament 2024 Tshwane Chess OPEN Registration Tournament
		date 2024-01-27	rnd 1	type Standard	result 1	date 2024-01-27	rnd 1	type Standard	result 1
		Opponent Truscott, A (Adriaan)				Opponent Truscott, A (Adriaan)

#	Games	Start				End
1	4	Tournament Ekurhuleni North Chess Club 2023				Tournament Chess Molecules Open Chess Tournament 2024
		date 2023-12-09	rnd 6	type Rapid	result 1	date 2024-06-15	rnd 2	type Rapid	result 1
		Opponent Kale, A (Akhona)				Opponent Mnguni, N (Nqobile)
2	2	Tournament Ekurhuleni North Chess Club 2023				Tournament Ekurhuleni North Chess Club 2023
		date 2023-12-09	rnd 1	type Rapid	result 1	date 2023-12-09	rnd 2	type Rapid	result 1
		Opponent De Swardt, S (Stephan)				Opponent Van Loggerenberg, M (Marcus)
3	1	Tournament Chess Molecules Open Chess Tournament 2024				Tournament Chess Molecules Open Chess Tournament 2024
		date 2024-06-15	rnd 5	type Rapid	result 1	date 2024-06-15	rnd 5	type Rapid	result 1
		Opponent Hutamo, S (Sibani)				Opponent Hutamo, S (Sibani)

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	Van De Venter ,Z (Zandre)	1	1	425	1	1	425	0	0	0	0	0	0
1	Van De Venter ,Z (Zandre)	1	1564.2	1989.2	1	1551.7	1989.2	0	0	0	0	0	0
2	Hu-Grobbelaar ,L (Lalu)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Hu-Grobbelaar ,L (Lalu)	1	1319.1	894.1	1	1302.2	894.1	0	0	0	0	0	0
3	Buchner ,E (Emil)	1	1	425	1	1	425	0	0	0	0	0	0
3	Buchner ,E (Emil)	1	1343.5	1768.5	1	1319.2	1768.5	0	0	0	0	0	0
4	Minny ,O (Oban)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Minny ,O (Oban)	1	1372.4	947.4	1	1359.1	947.4	0	0	0	0	0	0
5	Mohjomo ,K (Kearabetsoe)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mohjomo ,K (Kearabetsoe)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Truscott ,A (Adriaan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Truscott ,A (Adriaan)	1	1329.6	1754.6	1	1320.2	1754.6	0	0	0	0	0	0
7	Kula ,VJ (Vuyani Julius)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Kula ,VJ (Vuyani Julius)	1	1744.9	1319.9	1	1752.9	1319.9	0	0	0	0	0	0
8	Elvin ,A (Andrew)	1	1	425	1	1	425	0	0	0	0	0	0
8	Elvin ,A (Andrew)	1	1367.4	1792.4	1	1387.1	1792.4	0	0	0	0	0	0
9	Ambrose ,I (Isabella)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Ambrose ,I (Isabella)	1	1477.8	1477.8	1	1447.3	1477.8	0	0	0	0	0	0
10	Kock ,L (Luca)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Kock ,L (Luca)	1	1335.3	910.3	1	1322.5	910.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

O'Brien, S (Seth)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms