ZakStunts Folyami ratings

Current
- Near misses
Historical
About the ratings

Current

Latest update: ZCT259 (Mar 2023)

New entries: Erik Barros

Recently inactive: satanziege

New leader: Duplode

Personal best: Argammon, Frieshansen

	Racer	Rating	Change
1	Duplode	2191	+23
2	Alan Rotoi	2181	-12
3	Argammon	2083	+22
4	CTG	2061	n/a
5	Friker	1911	+22
6	Frieshansen	1879	+12
7	KyLiE	1850	+2
8	Zapper	1766	-11
9	Usrin	1753	n/a
10	dreadnaut	1716	+19
11	Overdrijf	1692	-7
12	Ryoma	1592	+19
13	Heretic	1559	-2
14	Erik Barros	1492	+31
15	Shorty	1393	-70
16	Cas	1379	-24
17	afullo	1377	+10
18	Shoegazing Leo	1242	+21
19	Stan 286XT	1107	+10
20	Daniel3D	1106	-29

The “change” values are differences between current and previous ratings for racers who took part (and had an included entry) in the latest race.

Near misses

Racers unranked due to inactivity who have raced (with an included entry) within the last twelve rounds.

Racer	Rating	Latest
Akoss Poo	2030	C249
Marco	1989	C252
satanziege	1080	C255

Historical

Latest update: ZCT259 (Mar 2023)

	Racer	Pers. Best	At
1	Ayrton	2351	C100
2	Renato Biker	2309	C180
3	Gutix	2302	C111
4	CTG	2233	C160
5	Duplode	2221	C128
6	FinRok	2221	C229
7	Alan Rotoi	2213	C254
8	Akoss Poo	2170	C169
9	Marco	2104	C218
10	Argammon	2083	C259
11	Bonzai Joe	2072	C134
12	Alain	2019	C32
13	Mark L. Rivers	1994	C88
14	SuperBrian	1972	C124
15	Roy Wiegerinck	1963	C15
16	Mingva	1961	C102
17	Friker	1953	C187
18	Chulk	1951	C61
19	Seeker1982	1944	C230
20	Zak McKracken	1906	C64
21	AbuRaf70	1898	C138
22	Frieshansen	1879	C259
23	Overdrijf	1878	C221
24	DarkChaser	1872	C69
25	KyLiE	1862	C252
26	dreadnaut	1860	C210
27	Usrin	1833	C255
28	Zapper	1801	C245
29	vamologocomisso	1788	C69
30	mislav	1782	C64
31	XDude_NL	1778	C28
32	Krys TOFF	1732	C45
33	Stingray86	1716	C229
34	Doelloos	1710	C28
35	Imperas	1701	C198
36	Bismarck	1695	C15
37	DieselJoe	1691	C45
38	Ben Snel	1690	C14
39	Pershing II	1636	P1
40	Shorty	1631	C167
41	satanziege	1623	C31
42	ADPunk	1616	C142
43	Fernando Brito	1612	C32
44	Ryoma	1608	C243
45	Heretic	1604	C250
46	dstien	1596	C125
47	Pitman	1560	C107
48	SergioBaro	1559	C53
49	Johnny-K	1555	C54
50	dosbox92	1545	C218
51	JoSi	1514	C110
52	afullo	1508	C243
53	Paleke	1503	C51
54	Pavekiller	1502	C89
55	Erik Barros	1492	C259
56	Cas	1488	C170
57	arturbmallman	1486	C200
58	Shoegazing Leo	1472	C171
59	Guga	1427	C36
60	Eddie Brother	1419	P3
61	Juank_23	1415	C15
62	KHR	1405	C5
63	Crazy Jimmy	1399	C118
64	Ranger	1395	C33
65	PedroAntonio	1394	C64
66	JTK	1389	C26
67	Cyberman	1383	C93
68	Antti	1378	C91
69	Straycat	1372	C233
70	hek	1372	C64
71	GTAMan15	1363	C238
72	Dinmor	1362	C49
73	AMG	1362	C82
74	Trx	1362	C7
75	lise	1349	C48
76	sd4000	1325	C214
77	Igor	1308	C238
78	Böbszlee	1308	C91
79	Neil McRae	1294	C27
80	Fredmen67	1249	C109
81	Motig	1247	C199
82	Marci	1227	C64
83	Daffy Duck	1227	C27
84	matamo	1207	C244
85	Tweety Bird	1185	C27
86	Daniel3D	1174	C249
87	Stan 286XT	1167	C238
88	Lene	1164	C69

About the ratings

The ratings in this page are calculated using the Folyami system, an Elo-like system adapted for racing competitions and, in particular, ZakStunts. The technical details on the system works and how it differs from Elo are outlined in The Folyami Rating System page. In the following paragraphs, I will focus on the aspects specific to its current implementation for ZakStunts.

Two rankings are assembled from the ratings: current and historical. The current ranking lists the rating for each racer after the most recent race they took part in, while the historical ranking lists the personal best rating reached by each racer over the entire history of the competition. The rankings have complementary purposes: while the current ranking is very dynamic and responsive to form, the historical rating provides lasting records and milestones.

To be included in either ranking, a racer must have completed at least five ZakStunts races, so that their rating can stabilise to some extent after starting from the arbitrary initial value of 1500. Additionally, in accordance with the dynamic, responsive to form nature of the current ranking, racers must race at least once every four races to remain in it. Racers who leave the current ranking due to inactivity can rejoin it at any time by taking part of a race, with their ratings preserved.

While the rating values shown in the rankings are integers, the calculations are done with decimal numbers, with the results only being rounded down for display in the final tables. The order of racers in the rankings is set according to the values before rounding; there are no other tiebreakers. The choice of rounding down, rather than to the nearest integer, was made so that one can look at the rankings and claim that, for instance, someone has reached 2000 points while being sure that the actual result won’t turn out to be, say, 1999.93. The rating differences shown in the tables, as in the “change” column of the current ranking, are taken between the rounded down values for consistency.

The historical data of ZakStunts results used to obtain the ratings was reviewed to eliminate inconsistencies which might muddle up the results. In particular, known ghosts have been excluded altogether from the calculations (legitimate name changes and pseudonyms, on the other hand, have been merged). Additionally, there are three Folyami-specific exclusion rules for race results, which aim at keeping obviously unrepresentative results from affecting the ratings. They are:

EX1 (“Bonzai Joe rule”): Results attained with times above 300% of the winning time and more than two standard deviations above the average time are excluded.
EX2 (“Marco rule”): Results known to have been attained while driving under restrictive racing rules (such as GAR or NoRH) are excluded.
EX3 (“Alan Rotoi rule”): Results attained with a clearly uncompetitive car are excluded. A clearly uncompetitive car is one that is only present in the bottom fourth (rounded up) of the scoreboard, and that wasn’t used to reach a better result than anyone driving a car that isn’t clearly uncompetitive and whose result has not been excluded by the EX1 and EX2 rules.
- For instance, in a race with 17 entries there are Lancias from 1st to 12th and Carreras from 13th to 17th, the Carrera is an uncompetitive car. However, if there is only one Carrera in 13th place amidst sixteen Lancias, the Carrera is not uncompetitive, as it has ended up ahead of some of the Lancias.)

Results excluded under those three rules do not count towards reaching the five race threshold for entering the ranking, nor do they count as race activity for the purpose of remaining in the current ranking.

The ZakStunts results data set used to compute the ratings are available in the GitHub repository of the project. If you spot a mistake or an omission in the data, it can be reported through the usual channels, or through an issue or pull request at GitHub.