Chess South Africa Ratings Database

PLAYER PAGE

Personal

Lotter, M (Michael)

Chess SA id

1100138456

FIDE id

Date of birth

2010-01-13 (U18)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-11-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1390.3	1371.9	1324	1199.9
Raw rating	1390.3	1371.9	1324	1199.3
Weighted rating	1376.5	1358.4	1317.5	1199.9
Weighted performance	1308.7	1280.9	1169.4	0
Floor	919.7	912	824	700
K-factor	32	32	36	36
Min/Max rating change allowed	126.4	129.8	139	166
Highest rating	1439.1 2024-09-01	1426.7 2024-09-01	1344.9 2023-03-01	1200 2018-10-01
Highest raw rating	1419.7 2024-10-01	1412 2024-10-01	1324 2025-03-01	1200 2024-02-01
Highest weighted rating	1373.8 2025-11-30	1348.7 2025-09-30	1306.9 2025-08-01	1200 2018-10-01
Highest weighted performance	1439.1 2024-09-01	1426.7 2024-09-01	1344.9 2023-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	-0.1
New rating	1390.3	1371.9	1324	1199.8
Analysis
Rating	1390.3	1371.9	1324	1199.9
Raw rating	1390.3	1371.9	1324	1199.3
Weighted rating	1376.5	1358.4	1317.5
Weighted performance	1308.7	1280.9	1169.4
K-factor	32	32	36	36
Floor	919.7	912	824	700
Max/Min rating change allowed	126.4	129.8	139	166
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	1390.3	1371.9	1324	1199.3
New weighted rating	1378.9	1360.8	1318.8	1199.8
New weighted performance	1299.8	1271.9	1160.6	0
Temp new rating	1390.3	1371.9	1324	1199.8
Temp new rating +/-	0	0	0	-0.1
Final new rating +/-	0	0	0	-0.1
New rating	1390.3	1371.9	1324	1199.8
New K-factor	32	32	36	36
New floor	919.7	912	824	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	48	22	18	8
	46	36	10	0
	33	16	17	0
	5	5	0	0
	0	0	0	0
History	132	79	45	8

Games since
	Main 94	Standard 58		Rapid 28		Blitz 8
Gender	Male
Age group	U16
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2300		709		39
Male	1865		555		28
U16	351		110		8
U16 Male	267		81		5
Standard
	RSA		Province		Region
Overall	2396		667		33
Male	1930		511		24
U16	379		117		9
U16 Male	286		84		5
Rapid
	RSA		Province		Region
Overall	926		472		51
Male	757		386		36
U16	130		69		7
U16 Male	101		55		5
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	48	27	56.25	53.1	1341.3	1394.4
Standard	22	13	59.09	77.3	1328.2	1405.5
Rapid	18	11	61.11	94.4	1270	1364.5
Blitz	8	3	37.5	-106.2	1537.4	1431.2
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	132	75	56.82	58	1300.4	1358.4
Standard	79	44.5	56.33	53.8	1302.9	1356.7
Rapid	45	27.5	61.11	94.4	1253.8	1348.2
Blitz	8	3	37.5	-106.2	1537.4	1431.2

Date	Main	Standard	Rapid	Blitz
2026-01-01	1390.3	1371.9	1324	1199.3
2025-11-30	1390.3	1371.9	1324	1199.3
2025-11-01	1387.1	1371.9	1324	1200
2025-09-30	1387.1	1371.9	1324	1200
2025-09-01	1383.4	1368	1324	1200
2025-08-01	1363.9	1342.9	1324	1200
2025-07-01	1363.9	1342.9	1324	1200
2025-06-01	1363.9	1342.9	1324	1200
2025-05-01	1363.9	1342.9	1324	1200
2025-04-01	1398	1387.9	1324	1200
2025-03-01	1371.8	1356.6	1324	1200
2025-02-01	1378.8	1356.6	1305.4	1200
2025-01-01	1378.8	1356.6	1305.4	1200
2024-12-01	1378.8	1356.6	1305.4	1200
2024-11-01	1419.7	1412	1305.4	1200
2024-10-01	1419.7	1412	1305.4	1200
2024-09-01	1369.6	1354.8	1305.4	1200
2024-11-01	1369.6	1354.8	1305.4	1200
2024-07-01	1320.5	1286.6	1305.4	1200
2024-06-01	1320.5	1286.6	1305.4	1200
2024-05-01	1320.5	1286.6	1305.4	1200
2024-04-01	1300.4	1286.6	1266.2	1200
2024-03-01	1267.2	1244.8	1266.2	1200
2024-02-01	1257.4	1244.8	1239.9	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	Hermanus Chess Club November Blitz 2025 (Open)	2025-11-29	2025-11-29	Blitz	Overberg (WOS)	9	8	3	Yes	Analysis
2	Western Cape Schools - Top Schools 2025 (U15)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	3	Yes	Analysis
3	Overberg Top Schools 2025 (U15-U19)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U15 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	2	Yes	Analysis
5	Overberg Schools - HS Closed 2025 (U15 Boys)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
6	Overberg Schools - HS Trials 2025 (U15 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
7	Curro Hermanus Summer Open 2025 (U15)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
8	Overberg Schools & Federation Open 2025 (U15)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
9	Paarl Boys' High Chess Festival 2024 (C)	2024-10-04	2024-10-05	Standard	Cape Winelands (WCW)	6	5	2	Yes	Analysis
10	Overberg GP Invitational Day 2 2024 (B)	2024-09-27	2024-09-27	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
11	Overberg GP Invitational Day 1 2024 (B)	2024-09-26	2024-09-26	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
12	Western Cape Top Schools Championship 2024 (U15 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	3.5	Yes	Analysis
13	Overberg Schools - Top Schools 2024 (U15 Mixed)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	4	4	Yes	Analysis
14	Curro Hermanus Freedom Day Rapid 2024 (U15)	2024-04-27	2024-04-27	Rapid	Overberg (WOS)	5	5	3.5	Yes	Analysis
15	Western Cape HS Individuals Championship 2024 (U15 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	2	Yes	Analysis
16	Overberg High Schools Trails 2024 (U15 Boys)	2024-03-02	2024-03-02	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
17	Overberg High Schools Trails 2024 (U15)	2024-02-24	2024-02-24	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
18	Overberg Top Schools 2023 (U13)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
19	Western Cape PS Individuals 2023 (U13 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
20	Hermanus Rapid 2023 (C)	2023-04-22	2023-04-22	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
21	Overberg School Chess Closed Tournament 2023 (U13 Boys)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
22	Overberg Primary School Trials (Region 2)	2023-02-24	2023-03-10	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
23	Overberg Schools Open Tournament 2023 (U14)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
24	Overberg Primary Schools Closed 2022 (U13 Boys)	2022-03-12	2022-03-12	Standard	Overberg (WOS)	5	5	2	Yes	Analysis

#	Games	Start				End
1	6	Tournament Curro Hermanus Freedom Day Rapid 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-04-27	rnd 5	type Rapid	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Duminy, M (Marc)				Opponent Moja, M (Malesela)
2	4	Tournament Overberg Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Sangovana, M (Mihlali)				Opponent Nzaramba, S (Shalom)
3	4	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 1	type Standard	result 1	date 2025-03-22	rnd 4	type Standard	result 1
		Opponent Geldenhuys, R (Reynhardt)				Opponent Carelsen, C (Colan)

#	Games	Start				End
1	5	Tournament Overberg Schools - Top Schools 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 1	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Collins, X (Xiane)				Opponent Moja, M (Malesela)
2	4	Tournament Overberg Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Sangovana, M (Mihlali)				Opponent Nzaramba, S (Shalom)
3	4	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 1	type Standard	result 1	date 2025-03-22	rnd 4	type Standard	result 1
		Opponent Geldenhuys, R (Reynhardt)				Opponent Carelsen, C (Colan)

#	Games	Start				End
1	5	Tournament Overberg High Schools Trails 2024				Tournament Curro Hermanus Freedom Day Rapid 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-04-27	rnd 3	type Rapid	result 1
		Opponent Kolsen, D (Diego)				Opponent Brink, S (Samantha)
2	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Van Der Merwe, L (Luan)				Opponent Scholtz, F (Francois)
3	3	Tournament Overberg Schools & Federation Open 2025				Tournament Curro Hermanus Summer Open 2025
		date 2025-02-01	rnd 6	type Rapid	result 1	date 2025-02-08	rnd 2	type Rapid	result 1
		Opponent Jara, I (Iviwe)				Opponent Nel, Z (Zybrand)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Curro Hermanus Freedom Day Rapid 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-04-27	rnd 5	type Rapid	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Duminy, M (Marc)				Opponent Moja, M (Malesela)
2	4	Tournament Overberg Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Sangovana, M (Mihlali)				Opponent Nzaramba, S (Shalom)
3	4	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 1	type Standard	result 1	date 2025-03-22	rnd 4	type Standard	result 1
		Opponent Geldenhuys, R (Reynhardt)				Opponent Carelsen, C (Colan)

#	Games	Start				End
1	5	Tournament Overberg Schools - Top Schools 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 1	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Collins, X (Xiane)				Opponent Moja, M (Malesela)
2	4	Tournament Overberg Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Sangovana, M (Mihlali)				Opponent Nzaramba, S (Shalom)
3	4	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 1	type Standard	result 1	date 2025-03-22	rnd 4	type Standard	result 1
		Opponent Geldenhuys, R (Reynhardt)				Opponent Carelsen, C (Colan)

#	Games	Start				End
1	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Van Der Merwe, L (Luan)				Opponent Scholtz, F (Francois)
2	3	Tournament Overberg Schools & Federation Open 2025				Tournament Curro Hermanus Summer Open 2025
		date 2025-02-01	rnd 6	type Rapid	result 1	date 2025-02-08	rnd 2	type Rapid	result 1
		Opponent Jara, I (Iviwe)				Opponent Nel, Z (Zybrand)
3	3	Tournament Curro Hermanus Freedom Day Rapid 2024				Tournament Overberg Schools & Federation Open 2025
		date 2024-04-27	rnd 5	type Rapid	result 1	date 2025-02-01	rnd 2	type Rapid	result 1
		Opponent Duminy, M (Marc)				Opponent Barkhuysen, H (Hendr� Pieter)

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	Rock ,M (Mieke)	4	3	212.5	2	2	425	2	1	0	0	0	0
1	Rock ,M (Mieke)	4	1163.9	1376.4	2	1147.8	1588.9	2	1200.6	1163.9	0	0	0
2	Opperman ,C (Connor)	4	0.5	-318.8	2	0	-425	1	0.5	0	1	0	-425
2	Opperman ,C (Connor)	4	1702.9	1384.1	2	1671.6	1277.9	1	1677.5	1702.9	1	1371.2	1277.9
3	Mackenzie ,T (Tayden)	3	0	-425	2	0	-425	1	0	-425	0	0	0
3	Mackenzie ,T (Tayden)	3	1539	1114	2	1536.1	1114	1	1462.1	1114	0	0	0
4	Scholtz ,F (Francois)	3	2	141.7	1	1	425	2	1	0	0	0	0
4	Scholtz ,F (Francois)	3	1232.5	1374.2	1	1246.6	1657.5	2	1250.1	1232.5	0	0	0
5	Stevens ,DA (Danielle-Ann)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Stevens ,DA (Danielle-Ann)	2	1403.3	978.3	2	1358.4	978.3	0	0	0	0	0	0
6	Du Plessis ,MA (Matthys Armand)	2	2	425	2	2	425	0	0	0	0	0	0
6	Du Plessis ,MA (Matthys Armand)	2	1251.2	1676.2	2	1221.6	1676.2	0	0	0	0	0	0
7	Van Niekerk ,N (Nina)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Van Niekerk ,N (Nina)	2	1531.2	1106.2	2	1531.4	1106.2	0	0	0	0	0	0
8	Maans ,W (Waylen)	2	2	425	2	2	425	0	0	0	0	0	0
8	Maans ,W (Waylen)	2	1149.8	1574.8	2	1167.6	1574.8	0	0	0	0	0	0
9	Valentine ,L (Luke)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Valentine ,L (Luke)	2	1572.7	1147.7	2	1551.7	1147.7	0	0	0	0	0	0
10	Brink ,S (Samantha)	2	2	425	1	1	425	1	1	425	0	0	0
10	Brink ,S (Samantha)	2	1290.1	1715.1	1	1317.9	1715.1	1	1205.9	1715.1	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Lotter, M (Michael)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms