Chess South Africa Ratings Database

PLAYER PAGE

Personal

Duvenhage, AM (Adriaan Markus)

Chess SA id

1090096767

FIDE id

Date of birth

2009-06-12 (U18)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-05-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1381.6	1303	1309.9	1182.8
Raw rating	1381.6	1303	1309.9	1182.8
Weighted rating	1381.6	1303	1309.9	1182.8
Weighted performance	651.7	358.3	0	0
Floor	881.6	873.9	809.9	700
K-factor	36	36	36	36
Min/Max rating change allowed	128	143.2	141.8	169.9
Highest rating	1381.6 2024-02-01	1373.9 2020-02-01	1444.2 2022-05-01	1200 2018-10-01
Highest raw rating	1381.6 2024-02-01	1373.9 2020-02-01	1309.9 2024-02-01	1200 2018-02-01
Highest weighted rating	1381.6 2024-05-01	1373.9 2022-01-01	1309.9 2024-05-01	1200 2018-10-01
Highest weighted performance	1350.4 2020-01-01	1346.7 2020-01-01	1444.2 2022-05-01	1200 2018-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1381.6	1303	1309.9	1182.8
Analysis
Rating	1381.6	1303	1309.9	1182.8
Raw rating	1381.6	1303	1309.9	1182.8
Weighted rating	1381.6	1303	1309.9
Weighted performance	651.7	358.3	0
K-factor	36	36	36	36
Floor	881.6	873.9	809.9	700
Max/Min rating change allowed	128	143.2	141.8	169.9
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	1381.6	1303	1309.9	1182.8
New weighted rating	1381.6	1303	1309.9	1182.8
New weighted performance	651.2	357.9	0	0
Temp new rating	1381.6	1303	1309.9	1182.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1381.6	1303	1309.9	1182.8
New K-factor	36	36	36	36
New floor	881.6	873.9	809.9	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	10	0	10	0
	0	0	0	0
History	152	135	10	7

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Tshwane (GTP)
Province	Gauteng (GT)
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	152	95.5	62.83	109	1100.7	1209.8
Standard	135	81.5	60.37	88.1	1085.6	1173.8
Rapid	10	9	90	340	1244.9	1584.9
Blitz	7	5	71.43	182.1	1185.5	1367.6

Date	Main	Standard	Rapid	Blitz
2025-09-30	1381.6	1303	1309.9	1182.8
2025-09-01	1381.6	1303	1309.9	1182.8
2025-08-01	1381.6	1303	1309.9	1182.8
2025-07-01	1381.6	1303	1309.9	1182.8
2025-06-01	1381.6	1303	1309.9	1182.8
2025-05-01	1381.6	1303	1309.9	1182.8
2025-04-01	1381.6	1303	1309.9	1182.8
2025-03-01	1381.6	1303	1309.9	1182.8
2025-02-01	1381.6	1303	1309.9	1182.8
2025-01-01	1381.6	1303	1309.9	1182.8
2024-12-01	1381.6	1303	1309.9	1182.8
2024-11-01	1381.6	1303	1309.9	1182.8
2024-10-01	1381.6	1303	1309.9	1182.8
2024-09-01	1381.6	1303	1309.9	1182.8
2024-08-01	1381.6	1303	1309.9	1182.8
2024-07-01	1381.6	1303	1309.9	1182.8
2024-06-01	1381.6	1303	1309.9	1182.8
2024-08-01	1381.6	1303	1309.9	1182.8
2024-04-01	1381.6	1303	1309.9	1182.8
2024-03-01	1381.6	1303	1309.9	1182.8
2024-02-01	1381.6	1303	1309.9	1182.8
2024-01-01	1381.6	1303	1309.9	1182.8
2023-12-01	1381.6	1303	1309.9	1182.8
2023-11-01	1381.6	1303	1309.9	1182.8

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	Rhenish Primary Tournament 2022 (U14)	2022-05-14	2022-05-14	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
2	Central Winelands Schools Individual Trials 2022 (U13 Boys)	2022-02-19	2022-02-19	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
3	Chess Unlimited Leap Year Tournament 2020 (Open)	2020-02-29	2020-02-29	Standard	Ehlanzeni (MEN)	5	5	1	Yes	Analysis
4	Uplands 2020 (U18)	2020-01-25	2020-01-25	Standard	Ehlanzeni (MEN)	5	5	3	Yes	Analysis
5	2019 Wild Card Chess Championship (U12 Open)	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	7	6	Yes	Analysis
6	2019 South African Junior Team Championships (U12A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
7	Ehlanzeni Open 2019 (B)	2019-07-19	2019-07-21	Standard	Ehlanzeni (MEN)	5	5	1	Yes	Analysis
8	De Goede Top 10 2019 (U12)	2019-07-03	2019-07-03	Standard	Ehlanzeni (MEN)	5	5	4	Yes	Analysis
9	2019 Waterkloof Open (B)	2019-03-02	2019-03-03	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
10	2019 South African Junior Closed Chess Championship (U10 Open)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	5	Yes	Analysis
11	2019 Tshwane Chess Registration Tournament (C)	2019-01-26	2019-01-26	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
12	2018 Tshwane Inter Region (U10A)	2018-12-01	2018-12-01	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
13	South African Junior Blitz 2018 (U10)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	7	5	Yes	Analysis
14	2018 Wild Card Chess Championships (U10 Open)	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
15	South African Junior Team Championships 2018 (U10A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	6.5	Yes	Analysis
16	2018 Etienne Lewis Trials (U10 Boys)	2018-08-31	2018-09-02	Standard	Tshwane (GTP)	7	7	4	Yes	Analysis
17	2018 Centurion Chess Club Open (C)	2018-09-29	2018-09-29	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
18	Henley Open 2018 (B)	2018-09-08	2018-09-08	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
19	2018 Mid Gauteng Open (D)	2018-08-18	2018-08-18	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
20	2018 Gauteng League Final (U9)	2018-08-24	2018-08-24	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
21	2018 D4 Tshwane South Schools League Finals (U9)	2018-08-03	2018-08-03	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
22	2018 Alekhine Open (C)	2018-08-09	2018-08-11	Standard	Tshwane (GTP)	6	6	3	Yes	Analysis
23	2018 Lubowski Open (D)	2018-05-12	2018-05-12	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
24	2018 Waterkloof Open (E)	2018-03-03	2018-03-04	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
25	2018 Crawford Open (D)	2018-03-24	2018-03-24	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
26	2018 Blou Bul Open (E)	2018-02-17	2018-02-17	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
27	2018 Tshwane Registration Open Chess Tournament (E)	2018-01-27	2018-01-27	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

#	Games	Start				End
1	10	Tournament 2018 Tshwane Inter Region				Tournament South African Junior Blitz 2018
		date 2018-12-01	rnd 4	type Standard	result 1	date 2018-12-19	rnd 2	type Blitz	result 1
		Opponent Byliefeldt, L (Leroux)				Opponent Felix, R (Raphael)
2	8	Tournament 2018 Mid Gauteng Open				Tournament 2018 Gauteng League Final
		date 2018-08-18	rnd 1	type Standard	result 1	date 2018-08-24	rnd 3	type Standard	result 1
		Opponent Carney, J (Jaimie)				Opponent Viljoen, H (Henning)
3	7	Tournament Central Winelands Schools Individual Trials 2022				Tournament Rhenish Primary Tournament 2022
		date 2022-02-19	rnd 4	type Rapid	result 1	date 2022-05-14	rnd 5	type Rapid	result 1
		Opponent Lielieveld, J (Jadrian)				Opponent Van Schaik, N (Neil)

#	Games	Start				End
1	12	Tournament 2018 Tshwane Inter Region				Tournament 2018 Wild Card Chess Championships
		date 2018-12-01	rnd 4	type Standard	result 1	date 2018-12-22	rnd 3	type Standard	result 1
		Opponent Byliefeldt, L (Leroux)				Opponent Palmer, J (Jesse)
2	8	Tournament 2018 Mid Gauteng Open				Tournament 2018 Gauteng League Final
		date 2018-08-18	rnd 1	type Standard	result 1	date 2018-08-24	rnd 3	type Standard	result 1
		Opponent Carney, J (Jaimie)				Opponent Viljoen, H (Henning)
3	6	Tournament 2019 Wild Card Chess Championship				Tournament 2019 Wild Card Chess Championship
		date 2020-01-09	rnd 2	type Standard	result 1	date 2020-01-12	rnd 7	type Standard	result 1
		Opponent Ebrahim, Z (Zachary)				Opponent Naidoo, K (Kirthan)

#	Games	Start				End
1	7	Tournament Central Winelands Schools Individual Trials 2022				Tournament Rhenish Primary Tournament 2022
		date 2022-02-19	rnd 4	type Rapid	result 1	date 2022-05-14	rnd 5	type Rapid	result 1
		Opponent Lielieveld, J (Jadrian)				Opponent Van Schaik, N (Neil)
2	2	Tournament Central Winelands Schools Individual Trials 2022				Tournament Central Winelands Schools Individual Trials 2022
		date 2022-02-19	rnd 1	type Rapid	result 1	date 2022-02-19	rnd 2	type Rapid	result 1
		Opponent Ferndale, A (Aubrey)				Opponent Riddles, S (Sage)

#	Games	Start				End
1	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 6	type Blitz	result 1	date 2018-12-19	rnd 7	type Blitz	result 1
		Opponent Rabinowitz, B (Benjamin)				Opponent Reyneke, L (Luke)
2	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 1	type Blitz	result 1	date 2018-12-19	rnd 2	type Blitz	result 1
		Opponent Nortje, D (Dell-Maree)				Opponent Felix, R (Raphael)
3	1	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 4	type Blitz	result 1	date 2018-12-19	rnd 4	type Blitz	result 1
		Opponent Le Roux, JC (Jean)				Opponent Le Roux, JC (Jean)

#	Games	Start				End
1	8	Tournament 2018 Mid Gauteng Open				Tournament 2018 Gauteng League Final
		date 2018-08-18	rnd 1	type Standard	result 1	date 2018-08-24	rnd 3	type Standard	result 1
		Opponent Carney, J (Jaimie)				Opponent Viljoen, H (Henning)
2	7	Tournament Central Winelands Schools Individual Trials 2022				Tournament Rhenish Primary Tournament 2022
		date 2022-02-19	rnd 4	type Rapid	result 1	date 2022-05-14	rnd 5	type Rapid	result 1
		Opponent Lielieveld, J (Jadrian)				Opponent Van Schaik, N (Neil)
3	6	Tournament 2019 Wild Card Chess Championship				Tournament 2019 Wild Card Chess Championship
		date 2020-01-09	rnd 2	type Standard	result 1	date 2020-01-12	rnd 7	type Standard	result 1
		Opponent Ebrahim, Z (Zachary)				Opponent Naidoo, K (Kirthan)

#	Games	Start				End
1	8	Tournament 2018 Mid Gauteng Open				Tournament 2018 Gauteng League Final
		date 2018-08-18	rnd 1	type Standard	result 1	date 2018-08-24	rnd 3	type Standard	result 1
		Opponent Carney, J (Jaimie)				Opponent Viljoen, H (Henning)
2	7	Tournament South African Junior Team Championships 2018				Tournament 2018 Wild Card Chess Championships
		date 2018-12-17	rnd 4	type Standard	result 1	date 2018-12-22	rnd 3	type Standard	result 1
		Opponent Goliath, Q (Quinn)				Opponent Palmer, J (Jesse)
3	6	Tournament 2019 Wild Card Chess Championship				Tournament 2019 Wild Card Chess Championship
		date 2020-01-09	rnd 2	type Standard	result 1	date 2020-01-12	rnd 7	type Standard	result 1
		Opponent Ebrahim, Z (Zachary)				Opponent Naidoo, K (Kirthan)

#	Games	Start				End
1	7	Tournament Central Winelands Schools Individual Trials 2022				Tournament Rhenish Primary Tournament 2022
		date 2022-02-19	rnd 4	type Rapid	result 1	date 2022-05-14	rnd 5	type Rapid	result 1
		Opponent Lielieveld, J (Jadrian)				Opponent Van Schaik, N (Neil)
2	2	Tournament Central Winelands Schools Individual Trials 2022				Tournament Central Winelands Schools Individual Trials 2022
		date 2022-02-19	rnd 1	type Rapid	result 1	date 2022-02-19	rnd 2	type Rapid	result 1
		Opponent Ferndale, A (Aubrey)				Opponent Riddles, S (Sage)

#	Games	Start				End
1	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 6	type Blitz	result 1	date 2018-12-19	rnd 7	type Blitz	result 1
		Opponent Rabinowitz, B (Benjamin)				Opponent Reyneke, L (Luke)
2	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 1	type Blitz	result 1	date 2018-12-19	rnd 2	type Blitz	result 1
		Opponent Nortje, D (Dell-Maree)				Opponent Felix, R (Raphael)
3	1	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 4	type Blitz	result 1	date 2018-12-19	rnd 4	type Blitz	result 1
		Opponent Le Roux, JC (Jean)				Opponent Le Roux, JC (Jean)

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	Sathish ,A (Abinavah)	4	0.5	-318.8	3	0.5	-283.3	0	0	0	1	0	-425
1	Sathish ,A (Abinavah)	4	1319.6	1000.9	3	1316.3	1036.3	0	0	0	1	937.4	894.6
2	Erlank ,BG (Brandon Graham)	2	1	0	2	1	0	0	0	0	0	0	0
2	Erlank ,BG (Brandon Graham)	2	1030.3	1030.3	2	1033.3	1030.3	0	0	0	0	0	0
3	Nel ,JB (Janko Bruwer)	2	1	0	2	1	0	0	0	0	0	0	0
3	Nel ,JB (Janko Bruwer)	2	1102.9	1102.9	2	1068.4	1102.9	0	0	0	0	0	0
4	Wasserman ,M (Meirin)	2	1	0	2	1	0	0	0	0	0	0	0
4	Wasserman ,M (Meirin)	2	1188.1	1188.1	2	1186.7	1188.1	0	0	0	0	0	0
5	Bosman ,P (Petrus)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Bosman ,P (Petrus)	2	1332.2	1119.7	2	1289.1	1119.7	0	0	0	0	0	0
6	Dvir ,O (Omer)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
6	Dvir ,O (Omer)	2	1018.1	1230.6	2	1011.7	1230.6	0	0	0	0	0	0
7	Yang ,A (Alex)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
7	Yang ,A (Alex)	2	1272.5	1060	2	1260.7	1060	0	0	0	0	0	0
8	Boheim ,E (Eugene)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Boheim ,E (Eugene)	2	1161.9	736.9	2	1162.6	736.9	0	0	0	0	0	0
9	Chang ,S (Samuel)	2	1	0	2	1	0	0	0	0	0	0	0
9	Chang ,S (Samuel)	2	1089.8	1089.8	2	1086.8	1089.8	0	0	0	0	0	0
10	Du ,ZB (Zhuofeng Benjamin)	2	1	0	2	1	0	0	0	0	0	0	0
10	Du ,ZB (Zhuofeng Benjamin)	2	1105.6	1105.6	2	1097.1	1105.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Duvenhage, AM (Adriaan Markus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms