Chess South Africa Ratings Database

PLAYER PAGE

Personal

Ehlers, R (Ruben)

Chess SA id

107961373

FIDE id

Date of birth

2007-03-19 (U20)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-02-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1311.3

Item	Main	Standard	Rapid	Blitz
Rating	1379.8	1367.5	888.3	888.3
Raw rating	1379.8	1367.5	888.3	888.3
Weighted rating	1377.7	1365.4	888.3	888.3
Weighted performance	1207.5	1198	0	0
Floor	1003.1	991.5	500	500
K-factor	32	32	40	40
Min/Max rating change allowed	128.3	130.6	258.5	258.5
Highest rating	1519.2 2022-09-01	1505.5 2022-09-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1503.1 2022-10-01	1491.5 2022-10-01	888.3 2024-02-01	888.3 2024-02-01
Highest weighted rating	1503.1 2023-11-01	1491.5 2023-11-01	888.3 2024-11-01	888.3 2024-11-01
Highest weighted performance	1519.2 2022-09-01	1505.5 2022-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1379.8	1367.5	888.3	888.3
Analysis
Rating	1379.8	1367.5	888.3	888.3
Raw rating	1379.8	1367.5	888.3	888.3
Weighted rating	1377.7	1365.4	888.3
Weighted performance	1207.5	1198	0
K-factor	32	32	40	40
Floor	1003.1	991.5	500	500
Max/Min rating change allowed	128.3	130.6	258.5	258.5
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	1379.8	1367.5	888.3	888.3
New weighted rating	1377.7	1365.4	888.3	888.3
New weighted performance	1207	1197.5	0	0
Temp new rating	1379.8	1367.5	888.3	888.3
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1379.8	1367.5	888.3	888.3
New K-factor	32	32	40	40
New floor	1003.1	991.5	500	500

Item	Main	Standard	Rapid
	0	0	0
	10	10	0
	45	45	0
	30	30	0
	41	41	0
	0	0	0
History	361	325	36

Games since
	Main 55	Standard 55		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2380		730		193
Male	1944		560		149
U20	199		70		15
U20 Male	163		60		12
Standard
	RSA		Province		Region
Overall	2395		668		208
Male	1946		503		155
U20	203		69		19
U20 Male	157		57		16
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	10	6	60	85	1230.9	1315.9
Standard	10	6	60	85	1230.9	1315.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	216	142	65.74	133.8	1168	1301.8
Standard	216	142	65.74	133.8	1168	1301.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1379.8	1367.5	888.3	888.3
2025-09-01	1379.8	1367.5	888.3	888.3
2025-08-01	1379.8	1367.5	888.3	888.3
2025-07-01	1379.8	1367.5	888.3	888.3
2025-06-01	1379.8	1367.5	888.3	888.3
2025-05-01	1379.8	1367.5	888.3	888.3
2025-04-01	1379.8	1367.5	888.3	888.3
2025-03-01	1379.3	1367	888.3	888.3
2025-02-01	1385.4	1372.9	888.3	888.3
2025-01-01	1385.4	1372.9	888.3	888.3
2024-12-01	1385.4	1372.9	888.3	888.3
2024-11-01	1360.7	1349.2	888.3	888.3
2024-10-01	1360.7	1349.2	888.3	888.3
2024-09-01	1360.7	1349.2	888.3	888.3
2024-08-01	1380.4	1373.5	888.3	888.3
2024-07-01	1373.8	1363.6	888.3	888.3
2024-06-01	1373.8	1363.6	888.3	888.3
2024-08-01	1373.8	1363.6	888.3	888.3
2024-04-01	1316.4	1284.2	888.3	888.3
2024-03-01	1383.1	1370.6	888.3	888.3
2024-02-01	1410.2	1398.4	888.3	888.3
2024-01-01	1410.2	1398.4	888.3	888.3
2023-12-01	1410.2	1398.4	888.3	888.3
2023-11-01	1410.2	1398.4	888.3	888.3

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	George Schools Chess Trials 2 2025 (U19 Boys)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	3	Yes	Analysis
2	George Schools Chess Trials 1 2025 (U19 Boys)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	George Schools Chess Trials 2 2025 (U19 Boys)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	3	Yes	Analysis
2	George Schools Chess Trials 1 2025 (U19 Boys)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
3	Paarl Boys' High Chess Festival 2024	2024-10-04	2024-10-05	Standard	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis
4	Eden Top Schools 2024 (U18 Open)	2024-08-17	2024-08-17	Standard	Eden (WEG)	5	4	1	Yes	Analysis
5	George HS Top Schools 2024 (U18)	2024-07-13	2024-07-13	Standard	Eden (WEG)	5	4	2.5	Yes	Analysis
6	Eden Chess Trials 2 2024 (U18)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	6.5	Yes	Analysis
7	Western Cape HS Individuals Championship 2024 (U18 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	1	Yes	Analysis
8	Eden School Chess Trials 1 2024 (U18 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
9	George Schools Trials 3 2024 (U18 Boys)	2024-03-02	2024-03-02	Standard	Eden (WEG)	5	0	0	No	Analysis
10	George Schools Trials 2 2024 (U18 Boys)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	3	Yes	Analysis
11	George Schools Trials 1 2024 (U18 Boys)	2024-02-03	2024-02-03	Standard	Eden (WEG)	5	5	3	Yes	Analysis
12	Eden Trials 2+3 2023 (U18)	2023-04-15	2023-05-13	Standard	Eden (WEG)	10	10	6.5	Yes	Analysis
13	Eden Trails 1 2023 (U17 Boys)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
14	George Chess Trials 3 2023 (U17 Boys)	2023-02-25	2023-02-25	Standard	Eden (WEG)	5	5	3	Yes	Analysis
15	George Chess Trials 2 2023 (U17 Boys)	2023-02-11	2023-02-11	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis
16	George Chess Trials 1 2023 (U17 Boys)	2023-01-28	2023-01-28	Standard	Eden (WEG)	5	5	3	Yes	Analysis
17	George Open 2022 (B)	2022-12-03	2022-12-03	Standard	Eden (WEG)	5	5	3	Yes	Analysis
18	Western Cape Top Schools 2022 (U15 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
19	Western Cape Schools Chess 2022 (U15 Boys)	2022-05-07	2022-05-08	Standard	Eden (WEG)	6	6	4	Yes	Analysis
20	Eden Proewe 2 2022 (O15 Seuns)	2022-04-09	2022-04-09	Standard	Eden (WEG)	5	5	4	Yes	Analysis
21	Eden Proewe 1 2022 (O15 Seuns)	2022-03-12	2022-03-12	Standard	Eden (WEG)	5	5	4	Yes	Analysis
22	George Trials 3 2022 (U15)	2022-02-26	2022-02-26	Standard	Eden (WEG)	5	5	3	Yes	Analysis
23	George Trials 2 2022 (U15)	2022-02-12	2022-02-12	Standard	Eden (WEG)	5	5	3	Yes	Analysis
24	George Trials 1 2022 (U15)	2022-01-29	2022-01-29	Standard	Eden (WEG)	5	5	3	Yes	Analysis
25	Eden Schools Closed Trials 1 2020 (U13 Boys)	2020-03-07	2020-03-07	Standard	Eden (WEG)	5	5	2	Yes	Analysis
26	George Trial 3 2020 (U14)	2020-02-22	2020-02-22	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
27	George Trial 2 2020 (U14)	2020-02-08	2020-02-08	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
28	George Trial 1 2020 (U14)	2020-01-25	2020-01-25	Standard	Eden (WEG)	5	5	3	Yes	Analysis
29	Eden Trials 3 2019 (U14 Open)	2019-05-11	2019-05-11	Standard	Eden (WEG)	5	5	4.5	Yes	Analysis
30	Western Cape Schools Individuals 2019 (U13 Boys)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	6	3	Yes	Analysis
31	Eden Trials 2 2019 (U14 Open)	2019-04-13	2019-04-13	Standard	Eden (WEG)	5	5	4	Yes	Analysis
32	Eden Trials 1 2019 (U14 Open)	2019-03-02	2019-03-02	Standard	Eden (WEG)	5	5	4.5	Yes	Analysis
33	George Trials 2 2019 (U14)	2019-02-09	2019-02-09	Standard	Eden (WEG)	5	5	4	Yes	Analysis
34	George Trials 1 2019 (U14)	2019-01-26	2019-01-26	Standard	Eden (WEG)	5	4	3	Yes	Analysis
35	South African Junior Team Championships 2018 (U12A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	2.5	Yes	Analysis
36	Eden Chess League 2018 (Premier)	2018-08-18	2018-09-01	Standard	Eden (WEG)	5	2	0.5	Yes	Analysis
37	Western Cape Schools Individuals 2018 (U11 Boys)	2018-05-19	2018-05-20	Standard	Overberg (WOS)	6	6	3	Yes	Analysis
38	EDENSC Closed 2 2018 (U12 Open)	2018-04-14	2018-04-14	Standard	Eden (WEG)	5	5	4.5	Yes	Analysis
39	EDENSC Closed 1 2018 (U12 Boys)	2018-03-10	2018-03-10	Standard	Eden (WEG)	5	5	4	Yes	Analysis
40	George Trails 3 2018 (U12)	2018-02-24	2018-02-24	Standard	Eden (WEG)	5	5	5	Yes	Analysis
41	George Trails 2 2018 (U12)	2018-02-10	2018-02-10	Standard	Eden (WEG)	5	5	4	Yes	Analysis
42	George Trails 1 2018 (U12)	2018-01-27	2018-01-27	Standard	Eden (WEG)	5	5	5	Yes	Analysis

#	Games	Start				End
1	15	Tournament George Trails 3 2018				Tournament EDENSC Closed 2 2018
		date 2018-02-24	rnd 1	type Standard	result 1	date 2018-04-14	rnd 5	type Standard	result 1
		Opponent Best, K (Keaton)				Opponent Williams, I (Igor)
2	9	Tournament Eden Trials 2 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-04-13	rnd 3	type Standard	result 1	date 2019-05-18	rnd 1	type Standard	result 1
		Opponent Barnardo, M (Miguel)				Opponent Phillips, W (Waldo)
3	9	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 1	type Standard	result 1	date 2018-02-10	rnd 4	type Standard	result 1
		Opponent Kruger, S (Sachin)				Opponent Kruger, S (Sachin)

#	Games	Start				End
1	15	Tournament George Trails 3 2018				Tournament EDENSC Closed 2 2018
		date 2018-02-24	rnd 1	type Standard	result 1	date 2018-04-14	rnd 5	type Standard	result 1
		Opponent Best, K (Keaton)				Opponent Williams, I (Igor)
2	9	Tournament Eden Trials 2 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-04-13	rnd 3	type Standard	result 1	date 2019-05-18	rnd 1	type Standard	result 1
		Opponent Barnardo, M (Miguel)				Opponent Phillips, W (Waldo)
3	9	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 1	type Standard	result 1	date 2018-02-10	rnd 4	type Standard	result 1
		Opponent Kruger, S (Sachin)				Opponent Kruger, S (Sachin)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 1	type Standard	result 1	date 2018-02-10	rnd 4	type Standard	result 1
		Opponent Kruger, S (Sachin)				Opponent Kruger, S (Sachin)
2	7	Tournament Western Cape Schools Chess 2022				Tournament Western Cape Top Schools 2022
		date 2022-05-08	rnd 5	type Standard	result 1	date 2022-09-17	rnd 5	type Standard	result 1
		Opponent Ahmed, AM (Abdul)				Opponent Pfende, T (Takudwza)
3	7	Tournament Eden Proewe 1 2022				Tournament Eden Proewe 2 2022
		date 2022-03-12	rnd 2	type Standard	result 1	date 2022-04-09	rnd 3	type Standard	result 1
		Opponent Lewis, E (Edwado)				Opponent Lebatie, B (Blake)

#	Games	Start				End
1	9	Tournament George Trails 1 2018				Tournament George Trails 2 2018
		date 2018-01-27	rnd 1	type Standard	result 1	date 2018-02-10	rnd 4	type Standard	result 1
		Opponent Kruger, S (Sachin)				Opponent Kruger, S (Sachin)
2	7	Tournament Western Cape Schools Chess 2022				Tournament Western Cape Top Schools 2022
		date 2022-05-08	rnd 5	type Standard	result 1	date 2022-09-17	rnd 5	type Standard	result 1
		Opponent Ahmed, AM (Abdul)				Opponent Pfende, T (Takudwza)
3	7	Tournament Eden Proewe 1 2022				Tournament Eden Proewe 2 2022
		date 2022-03-12	rnd 2	type Standard	result 1	date 2022-04-09	rnd 3	type Standard	result 1
		Opponent Lewis, E (Edwado)				Opponent Lebatie, B (Blake)

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	Kruger ,S (Sachin)	7	5	182.1	7	5	182.1	0	0	0	0	0	0
1	Kruger ,S (Sachin)	7	974.4	1156.6	7	992.9	1156.6	0	0	0	0	0	0
2	Williams ,I (Igor)	7	2.5	-121.4	7	2.5	-121.4	0	0	0	0	0	0
2	Williams ,I (Igor)	7	1369.5	1248.1	7	1375.9	1248.1	0	0	0	0	0	0
3	Rossouw ,L (Liam)	5	3.5	170	5	3.5	170	0	0	0	0	0	0
3	Rossouw ,L (Liam)	5	1300.8	1470.8	5	1293.7	1470.8	0	0	0	0	0	0
4	Heesen ,T (Tyler)	5	1.5	-170	5	1.5	-170	0	0	0	0	0	0
4	Heesen ,T (Tyler)	5	1481.6	1311.6	5	1488.2	1311.6	0	0	0	0	0	0
5	Du Plessis ,A (Arno)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
5	Du Plessis ,A (Arno)	4	1370.6	1158.1	4	1366.9	1158.1	0	0	0	0	0	0
6	Miggels ,A (Alaric)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
6	Miggels ,A (Alaric)	4	984.8	1197.2	4	989.2	1197.2	0	0	0	0	0	0
7	Barnardo ,M (Miguel)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
7	Barnardo ,M (Miguel)	4	1142.5	1355	4	1134.5	1355	0	0	0	0	0	0
8	Bezuidenhout ,J (Jacques)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
8	Bezuidenhout ,J (Jacques)	3	1218.7	1218.7	3	1217.8	1218.7	0	0	0	0	0	0
9	Kuyler ,L (Luzandri)	3	3	425	3	3	425	0	0	0	0	0	0
9	Kuyler ,L (Luzandri)	3	1169.7	1594.7	3	1172.5	1594.7	0	0	0	0	0	0
10	Harker ,C (Cassidy)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
10	Harker ,C (Cassidy)	3	1047.4	1330.7	3	1035.5	1330.7	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

Ehlers, R (Ruben)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms