Most successful team in F1 history

[crmalcolm]

I have created this thread following a discussion point in the Quiz thread in the F1 sub-forum.

The discussion revolves around the legitimacy and legacy of F1 teams' historical records. And so, for reference, I have decided to trace the many considerations in play.

From my perspective, here’s how I see it through the span of history.
Or if you want, in the context of the quiz thread, what would be the answer to the question ‘which four teams are the most successful in F1 history’? (if asked at any point in time)

The starting point is 1946 – with the first race that was contested to F1 regulations. That was won by an Alfa-Romeo.
The following year, the first ‘Grandes Épreuves’ season was held featuring 4 races.
The table now reads

Team	Total Wins	Wins Grandes Épreuves
Alfa-Romeo	4	3
Talbot-Lago	1	1

Following this through, the first time we have four teams on the list is after the 1949 season:

Team	Total Wins	Wins Grandes Épreuves
Alfa-Romeo	7	6
Talbot-Lago	3	3
Maserati	2	2
Ferrari	2	2

From 1950 onwards, I would exclude the Indy 500 winners as that event was not held to F1 regulations. We do now have a new category though; races that were held as part of the WDC.

[crmalcolm]

For 1952 and 1953, with the WDC being contested to F2 regulations, this also clouds the records in the early years of F1. They are included in the overall wins in the table, but with a new column that excludes F1 WDC wins.
1954 saw the first wins for the Mercedes, and also definitively moved them ahead of Talbot-Lago. Talbot-Lago are removed from the table at this point, with their record coming from pre-WDC results.

Team	Wins	Excl F2	Grandes Épreuves	WDC
Ferrari	21	7	2	19
Alfa-Romeo	17	17	6	10
Maserati	5	4	2	3
Mercedes	4	4	0	4

1958 is the next time that results could be seen as diverging again. This was the first season that a manufacturers’ trophy was awarded. It was not referred to as the WCC then, but in effect is the same record.
As a result, if this is the marker for results, you have Vanwall and Cooper staking a claim to be one of the top four teams.

Team	Wins	Excl F2	Grandes Épreuves	WDC	WCC
Ferrari	29	15	2	27	2
Alfa-Romeo	17	17	6	10	0
Maserati	11	10	2	9	0
Mercedes	9	9	0	9	0
Vanwall	9	9	0	9	6
Cooper	2	2	0	2	2

1959 sees BRM stake a claim for being in the top four WCC teams, with a single win.

Team	Wins	Excl F2	Grandes Épreuves	WDC	WCC
Ferrari	31	17	2	29	4
Alfa-Romeo	17	17	6	10	0
Maserati	11	10	2	9	0
Mercedes	9	9	0	9	0
Vanwall	9	9	0	9	6
Cooper	7	7	0	7	7
BRM	1	1	0	1	1

[crmalcolm]

In 1974, Cooper drops out of contention for a ‘top four’

Team	Wins	Excl F2	Grandes Épreuves	WDC	WCC
Lotus	57	57	0	57	57
Ferrari	54	40	2	52	27
Tyrrell	18	18	0	18	18
Alfa-Romeo	17	17	6	10	0
BRM	17	17	0	17	17

And by the end of 1975, the top four unifies with Brabham moving ahead of BRM and Alfa-Romeo.

Team	Wins	Excl F2	Grandes Épreuves	WDC	WCC
Ferrari	60	46	2	58	33
Lotus	57	57	0	57	57
Tyrrell	19	19	0	19	19
Brabham	18	18	0	18	18

In 1976, the order changed again with McLaren moving into the top four.

Team	Wins	Excl F2	Grandes Épreuves	WDC	WCC
Ferrari	66	52	2	64	39
Lotus	58	58	0	58	58
McLaren	21	21	0	21	21
Tyrrell	20	20	0	20	20

In 1980, Brabham swaps with Tyrrell.

Team	Wins	Excl F2	Grandes Épreuves	WDC	WCC
Ferrari	81	67	2	79	54
Lotus	71	71	0	71	71
McLaren	24	24	0	24	24
Brabham	23	23	0	23	23

By the end of 1987, Williams moved into the top four and replaced Brabham.

Team	Wins	Excl F2	Grandes Épreuves	WDC	WCC
Ferrari	95	81	2	93	68
Lotus	79	79	0	79	79
McLaren	55	55	0	55	55
Williams	40	40	0	40	40

[E.B]

Great work 'crm' on all the preparation and background you have put forward for this more than interesting discussion point.

[crmalcolm]

In my tracking of wins - it is just getting interesting (in terms of legacy) as Benetton/Renault is moving towards the top four, with a split history for Renault....

[crmalcolm]

It is not until after the 2012 season when we see the next claim for inclusion in the top four. This comes from the Lotus name, which now has a split history between the original Lotus team and the continuation of the Toleman team.

Team	Wins	Excl F2	Grandes Épreuves	WDC	WCC
Ferrari	221	207	2	219	194
McLaren	182	182	0	182	182
Williams	114	114	0	114	114
Lotus (name)	80	80	0	80	80
Lotus (1954 team)	79	79	0	79	79

By 2016, the top four is contested again with the combined results of the Tyrrell team surpassing the record of Lotus (as a name or the original team).

Team	Wins	Excl F2	Grandes Épreuves	WDC	WCC
Ferrari	226	212	2	224	199
McLaren	182	182	0	182	182
Williams	114	114	0	114	114
Tyrrell-BAR-Honda-Brawn-Mercedes	87	87	0	87	87
Lotus (name)	81	81	0	81	81
Lotus (1954 team)	79	79	0	79	79

In only two more years, Mercedes passes Lotus as a name on the list during 2018– and if you discount the Tyrrell (legacy) results Mercedes is in the top four in its own right.

Team	Wins	Excl F2	Grandes Épreuves	WDC	WCC
Ferrari	237	223	2	235	210
McLaren	182	182	0	182	182
Williams	114	114	0	114	114
Tyrrell-BAR-Honda-Brawn-Mercedes	110	110	0	110	110
Mercedes (name)	87	87	0	87	78

[crmalcolm]

And at the end of the 2022 season, what does the table look like?
Depending on your interpretation, the top four is either:
Ferrari-McLaren-Tyrrell-Williams
Ferrari-McLaren-Mercedes-Williams

For those interested, the full list including combined and separated results reads:

Team	Wins	Excl F2	Grandes Épreuves	WDC	WCC
Ferrari	244	230	2	242	217
McLaren	183	183	0	183	183
Tyrell-BAR-Honda-Brawn-Mercedes	148	148	0	148	148
Mercedes (name)	125	125	0	125	116
Williams	114	114	0	114	114
Stewart-Jaguar-Red Bull	93	93	0	93	93
Red Bull (name)	92	92	0	92	92
Lotus (name)	81	81	0	81	81
Lotus (1954 team)	79	79	0	79	79
Toleman-Benetton-Renault-Lotus-Renault-Alpine	50	50	0	50	50
Brabham	35	35	0	35	35
Renault (name)	35	35	0	35	35
Benetton (name)	27	27	0	27	27
Tyrrell (name)	23	23	0	23	23
Matra/Ligier	18	18	0	18	18
Alfa-Romeo (1946 team)	17	17	6	10	0
BRM	17	17	0	17	17
Alfa-Romeo (name)	17	17	6	10	0
Cooper	16	16	0	16	16
Renault (1977 team)	15	15	0	15	15
Maserati	11	10	2	9	0
Mercedes (1954 team)	9	9	0	9	0
Vanwall	9	9	0	9	6
Matra (name)	9	9	0	9	9
Ligier (name)	9	9	0	9	9
Brawn (name)	8	8	0	8	8
Talbot (name)	5	5	3	2	2
Jordan-Midland-Spyker-Force India-Racing Point-Aston Martin	5	5	0	5	5
Jordan (name)	4	4	0	4	4
Talbot-Lago	3	3	3	0	0
March	3	3	0	3	3
Wolf	3	3	0	3	3
Honda (name)	3	3	0	3	3
Minardi-ToroRosso-AlphaTauri	2	2	0	2	2
Porsche	1	1	0	1	1
Eagle	1	1	0	1	1
Hesketh	1	1	0	1	1
Penske	1	1	0	1	1
Shadow	1	1	0	1	1
Sauber-BMW-Alfa Romeo	1	1	0	1	1
BMW (name)	1	1	0	1	1
Stewart (name)	1	1	0	1	1
ToroRosso (name)	1	1	0	1	1
AlphaTauri (name)	1	1	0	1	1
Racing Point (name)	1	1	0	1	1
Alpine (name)	1	1	0	1	1
Aston Martin (name)	0	0	0	0	0

[S griffin]

No surprise to Ferrari on top and it says a lot that the current Merc isn't even close enough

[crmalcolm]

Originally Posted by S griffin

No surprise to Ferrari on top and it says a lot that the current Merc isn't even close enough

I think the more telling statistic is that having only been running their team for just over 12 years, they have achieved 116 race wins.

It took Ferrari 50 years to reach this same number of wins. Their best spell saw them take 116 race wins in 18 seasons (1996-2013).

It took McLaren 30 years to reach 116 wins (1968-1998). Their shortest span for 116 wins was 1984 to 2005.

Williams took 26 years to get their first 113 wins.

[S griffin]

More races in a season probably helps Merc though

[BTCC frog]

Thanks for this, crmalcolm, it's pretty much exactly what I was hoping for.

Just a question, what is 'Matra/Ligier'? Is this the Matra that Jackie Stewart drove for in 1968-69 and Ken Tyrrell managed initially, and that Chris Amon was last to race for in 1972, because I never knew they turned into Ligier who wouldn't appear until 1976, four years later? Also, when Tyrrell did form their own team in 1970, they raced a March, so have you given this race win to Tyrrell or to March (I would have chosen Tyrrell).

In terms of which version should be used, I would certainly go with the one linking Tyrrell to Mercedes, Toleman to Alpine etc. Definitely not names, Enstone Lotus was not Colin Chapman Lotus. I don't feel like Mercedes is the same as Tyrrell, but I suppose Ferrari still exists long after the death of Enzo Ferrari, Williams is still going without Frank Williams, Brabham continued without Jack Brabham and Lotus continued without Colin Chapman. So just because Ken Tyrrell is no longer involved doesn't make it not the same team.

But maybe it is different with manufacturers because Mercedes, Renault and Alfa Romeo are still the same company despite running teams at different times in the sports history. It is certainly not a straightforward question.

[crmalcolm]

Originally Posted by BTCC frog

Thanks for this, crmalcolm, it's pretty much exactly what I was hoping for.

Just a question, what is 'Matra/Ligier'? Is this the Matra that Jackie Stewart drove for in 1968-69 and Ken Tyrrell managed initially, and that Chris Amon was last to race for in 1972, because I never knew they turned into Ligier who wouldn't appear until 1976, four years later? Also, when Tyrrell did form their own team in 1970, they raced a March, so have you given this race win to Tyrrell or to March (I would have chosen Tyrrell).

In terms of which version should be used, I would certainly go with the one linking Tyrrell to Mercedes, Toleman to Alpine etc. Definitely not names, Enstone Lotus was not Colin Chapman Lotus. I don't feel like Mercedes is the same as Tyrrell, but I suppose Ferrari still exists long after the death of Enzo Ferrari, Williams is still going without Frank Williams, Brabham continued without Jack Brabham and Lotus continued without Colin Chapman. So just because Ken Tyrrell is no longer involved doesn't make it not the same team.

But maybe it is different with manufacturers because Mercedes, Renault and Alfa Romeo are still the same company despite running teams at different times in the sports history. It is certainly not a straightforward question.

Firstly - I agree there is a lot of complexity and people will always have different opinions on the heritage of certain teams / names.

To answer the Matra and Tyrrell questions.

There is a slight flaw in trying to answer the question - I have opted to list all of the results under the constructor. I guess the title of the thread would be more accurate as 'Most successful constructor in F1 history' - but then we are getting even more murky with constructors vs teams in the early years.

What is 'Matra/Ligier'?
The first wins I have down for Matra come from the 1968 season. According to my history the Matra F1 team's assets were acquired by Ligier in 1972 so I saw the Ligier entry as a continuation of the team (akin to Toleman-Benneton).
Of course, some will see this differently, which is why Matra and Ligier both have separate listings in the table too.


Have you given this [1970] race win to Tyrrell or to March (I would have chosen Tyrrell).
It is in the records against March (as the constructor) - but theoretically it could also be given to Tyrrell as well. I've added one to Tyrrell in my spreadsheet, so they now read as 149 wins.

[crmalcolm]

Originally Posted by S griffin

More races in a season probably helps Merc though

That is a very valid point. I will look into this further and see how the quantity of races in each year changes how we view the success.


Mercedes’ recent record is queried against the others due to there being more races in a season – which raises the question of whether 116 wins in 12 years is as good as 116 wins in 18 years (for example).

To answer this, I am going to look at whole season records against the total number of races, and see if there is a conclusive marker of most successful period.
For simplicity, any record of less than 10 wins is discounted as well as Indy 500 rounds.
I am also only including records set over at least three years, to prevent single-season dominance from crowding the records. The list includes records that are greater than 30% win rate, limited to the best 5 periods for each entrant.

[crmalcolm]

The first entry on the list comes from the Alfa-Romeo team from 1946. Reaching a total of 13 wins by the end of the 1950 season, their record was 13 wins from 20 races.

Team	Start	End	Races	Wins	Ratio
Alfa-Romeo	1946	1950	20	13	65%
Alfa-Romeo	1947	1950	19	12	63%

[crmalcolm]

The next team to reach the 10 win milestone is Ferrari in the 1952 season. This sees them join the list in addition to Alfa’s results so far.

Team	Start	End	Races	Wins	Ratio
Alfa-Romeo	1946	1950	20	13	65.00%
Alfa-Romeo	1947	1950	19	12	63.16%
Alfa-Romeo	1946	1951	27	17	62.96%
Alfa-Romeo	1947	1951	26	16	61.54%
Alfa-Romeo	1948	1951	22	13	59.09%
Ferrari	1949	1952	25	12	48.00%

The 1953 season saw Ferrari set a new record and was a more successful period than Alfa-Romeo’s previously. With this record stretching back from the first WDC, this is the new benchmark with just Alfa’s best record from pre-1950 left in for reference.

Team	Start	End	Races	Wins	Ratio
Ferrari	1951	1953	22	17	77.27%
Alfa-Romeo	1946	1950	20	13	65.00%
Ferrari	1950	1953	28	17	60.71%

[crmalcolm]

With the 1952 and 1953 WDC seasons using F2 regulations, this is also a talking point over the validity of the records. As with the pre-1950 Alfa records, I will leave Ferrari’s best record spanning those seasons in as a marker.
The arrival of Cooper saw a new name enter the list after the 1960 season, with a 3-year record of 13 wins from 27 races.

Team	Start	End	Races	Wins	Ratio
Ferrari	1951	1953	22	17	77.27%
Alfa-Romeo	1946	1950	20	13	65.00%
Cooper	1958	1960	27	13	48.15%

[crmalcolm]

1961 sees two more records added to the list, with Cooper completing another 3 year run of 11 from 25 and Ferrari setting the first purely F1-WDC record of 15 from 49 over 6 years.

Team	Start	End	Races	Wins	Ratio
Ferrari	1951	1953	22	17	77.27%
Alfa-Romeo	1946	1950	20	13	65.00%
Cooper	1958	1960	27	13	48.15%
Cooper	1959	1961	25	11	44.00%
Ferrari	1956	1961	49	15	30.61%

[crmalcolm]

In 1963 Lotus joins the club, with a 3-year record of 13 from 27 at 48.15%
Further wins through to the end of 1965 saw another 3-year record of 16 from 30 at an even better 53.33% alongside a 4-year record of 19 from 39.

Team	Start	End	Races	Wins	Ratio
*1 Ferrari	1951	1953	22	17	77.27%
*2 Alfa-Romeo	1946	1950	20	13	65.00%
Lotus	1963	1965	30	16	53.33%
Lotus	1962	1965	39	19	48.72%
Cooper	1958	1960	27	13	48.15%
Lotus	1961	1963	27	13	48.15%
Cooper	1959	1961	25	11	44.00%
Ferrari	1956	1961	49	15	30.61%

*1 – includes WDC seasons of F2 regulations
*2 – includes pre-1950 results

[crmalcolm]

When you include the 1960 season in the Lotus record, they also have the first run of over 50 races to be >30% win ratio.
The next run of seasons comes for Lotus at the end of the 1968 season with 3-year record of 10 from 32, which they improve on the following year with a 3-year record of 11 from 34.

Team	Start	End	Races	Wins	Ratio
*1 Ferrari	1951	1953	22	17	77.27%
*2 Alfa-Romeo	1946	1950	20	13	65.00%
Lotus	1963	1965	30	16	53.33%
Lotus	1962	1965	39	19	48.72%
Cooper	1958	1960	27	13	48.15%
Lotus	1961	1963	27	13	48.15%
Cooper	1959	1961	25	11	44.00%
Lotus	1960	1965	56	24	42.86%
Lotus	1967	1969	34	11	32.35%
Lotus	1966	1968	32	10	31.25%
Ferrari	1956	1961	49	15	30.61%

*1 – includes WDC seasons of F2 regulations
*2 – includes pre-1950 results

[crmalcolm]

After the 1972 season, Tyrrell makes an appearance on the list with a 3-year record of 12 from 36. Lotus also sets another benchmark with a second 6-year spell in the least of 22 from 70.
Tyrrell improves on their record in 1973 and records a 16 from 38. Also at the end of the 1973 season, Lotus records the first >100 record of 36 from 104.
Combined, the Tyrrell and Lotus records after 1973 start to dominate the list.

Team	Start	End	Races	Wins	Ratio
*1 Ferrari	1951	1953	22	17	77.27%
*2 Alfa-Romeo	1946	1950	20	13	65.00%
Lotus	1963	1965	30	16	53.33%
Lotus	1962	1965	39	19	48.72%
Cooper	1958	1960	27	13	48.15%
Lotus	1961	1963	27	13	48.15%
Cooper	1959	1961	25	11	44.00%
Lotus	1960	1965	56	24	42.86%
Tyrrell	1971	1973	38	16	42.11%
Lotus	1970	1973	51	18	35.29%
Lotus	1965	1973	104	36	34.62%
Lotus	1964	1973	114	39	34.21%
Lotus	1967	1973	85	29	34.21%
Lotus	1968	1973	74	25	33.78%
Tyrrell	1970	1972	36	12	33.33%
Tyrrell	1970	1973	51	17	33.33%
Lotus	1967	1969	34	11	32.35%
Lotus	1969	1973	62	20	32.26%
Lotus	1971	1973	38	12	31.58%
Ferrari	1956	1961	49	15	30.61%

*1 – includes WDC seasons of F2 regulations
*2 – includes pre-1950 results

[crmalcolm]

After the 1974 season, Lotus and Tyrrell both post an improvement against their existing records.

Team	Start	End	Races	Wins	Ratio
*1 Ferrari	1951	1953	22	17	77.27%
*2 Alfa-Romeo	1946	1950	20	13	65.00%
Lotus	1963	1965	30	16	53.33%
Lotus	1962	1965	39	19	48.72%
Cooper	1958	1960	27	13	48.15%
Lotus	1961	1963	27	13	48.15%
Cooper	1959	1961	25	11	44.00%
Lotus	1960	1965	56	24	42.86%
Tyrrell	1971	1973	38	16	42.11%
Lotus	1972	1974	42	15	35.71%
Lotus	1970	1973	51	18	35.29%
Lotus	1965	1973	104	36	34.62%
Lotus	1964	1973	114	39	34.21%
Lotus	1967	1973	85	29	34.12%
Tyrrell	1971	1974	53	18	33.96%
Lotus	1968	1973	74	25	33.78%
Tyrrell	1970	1972	36	12	33.33%
Lotus	1967	1969	34	11	32.35%
Lotus	1969	1973	62	20	32.26%
Ferrari	1956	1961	49	15	30.61%

*1 – includes WDC seasons of F2 regulations
*2 – includes pre-1950 results

[crmalcolm]

In 1976, Ferrari make another entry on the list with a 3-year record of 15 from 45.

Team	Start	End	Races	Wins	Ratio
*1 Ferrari	1951	1953	22	17	77.27%
*2 Alfa-Romeo	1946	1950	20	13	65.00%
Lotus	1963	1965	30	16	53.33%
Lotus	1962	1965	39	19	48.72%
Cooper	1958	1960	27	13	48.15%
Lotus	1961	1963	27	13	48.15%
Cooper	1959	1961	25	11	44.00%
Lotus	1960	1965	56	24	42.86%
Tyrrell	1971	1973	38	16	42.11%
Lotus	1972	1974	42	15	35.71%
Lotus	1970	1973	51	18	35.29%
Lotus	1965	1973	104	36	34.62%
Lotus	1964	1973	114	39	34.21%
Lotus	1967	1973	85	29	34.12%
Tyrrell	1971	1974	53	18	33.96%
Lotus	1968	1973	74	25	33.78%
Tyrrell	1970	1972	36	12	33.33%
Ferrari	1974	1976	45	15	33.33%
Lotus	1969	1973	62	20	32.26%
Ferrari	1956	1961	49	15	30.61%

*1 – includes WDC seasons of F2 regulations
*2 – includes pre-1950 results

[crmalcolm]

Ferrari improves their best 3-year record in 1977 with a 16 from 47.

Team	Start	End	Races	Wins	Ratio
*1 Ferrari	1951	1953	22	17	77.27%
*2 Alfa-Romeo	1946	1950	20	13	65.00%
Lotus	1963	1965	30	16	53.33%
Lotus	1962	1965	39	19	48.72%
Cooper	1958	1960	27	13	48.15%
Lotus	1961	1963	27	13	48.15%
Cooper	1959	1961	25	11	44.00%
Lotus	1960	1965	56	24	42.86%
Tyrrell	1971	1973	38	16	42.11%
Lotus	1972	1974	42	15	35.71%
Lotus	1970	1973	51	18	35.29%
Lotus	1965	1973	104	36	34.62%
Lotus	1964	1973	114	39	34.21%
Lotus	1967	1973	85	29	34.12%
Ferrari	1974	1976	47	16	34.04%
Tyrrell	1971	1974	53	18	33.96%
Lotus	1968	1973	74	25	33.78%
Tyrrell	1970	1972	36	12	33.33%
Lotus	1969	1973	62	20	32.26%
Ferrari	1956	1961	49	15	30.61%

*1 – includes WDC seasons of F2 regulations
*2 – includes pre-1950 results

[crmalcolm]

In 1978, Ferrari set their first >50 race record of 21 from 63. They also matched their previous 15 from 49 record at the end of 1978.

Team	Start	End	Races	Wins	Ratio
*1 Ferrari	1951	1953	22	17	77.27%
*2 Alfa-Romeo	1946	1950	20	13	65.00%
Lotus	1963	1965	30	16	53.33%
Lotus	1962	1965	39	19	48.72%
Cooper	1958	1960	27	13	48.15%
Lotus	1961	1963	27	13	48.15%
Cooper	1959	1961	25	11	44.00%
Lotus	1960	1965	56	24	42.86%
Tyrrell	1971	1973	38	16	42.11%
Lotus	1972	1974	42	15	35.71%
Lotus	1970	1973	51	18	35.29%
Lotus	1965	1973	104	36	34.62%
Lotus	1964	1973	114	39	34.21%
Lotus	1967	1973	85	29	34.12%
Ferrari	1974	1976	47	16	34.04%
Tyrrell	1971	1974	53	18	33.96%
Lotus	1968	1973	74	25	33.78%
Tyrrell	1970	1972	36	12	33.33%
Ferrari	1975	1978	63	21	33.33%
Ferrari	1956	1961	49	15	30.61%

*1 – includes WDC seasons of F2 regulations
*2 – includes pre-1950 results

[crmalcolm]

In 1979, Ferrari improved their >50 race record to 27 from 78.

Team	Start	End	Races	Wins	Ratio
*1 Ferrari	1951	1953	22	17	77.27%
*2 Alfa-Romeo	1946	1950	20	13	65.00%
Lotus	1963	1965	30	16	53.33%
Lotus	1962	1965	39	19	48.72%
Cooper	1958	1960	27	13	48.15%
Lotus	1961	1963	27	13	48.15%
Cooper	1959	1961	25	11	44.00%
Lotus	1960	1965	56	24	42.86%
Tyrrell	1971	1973	38	16	42.11%
Lotus	1972	1974	42	15	35.71%
Lotus	1970	1973	51	18	35.29%
Ferrari	1975	1979	78	27	34.62%
Lotus	1965	1973	104	36	34.62%
Lotus	1964	1973	114	39	34.21%
Lotus	1967	1973	85	29	34.12%
Ferrari	1974	1976	47	16	34.04%
Tyrrell	1971	1974	53	18	33.96%
Lotus	1968	1973	74	25	33.78%
Tyrrell	1970	1972	36	12	33.33%
Ferrari	1956	1961	49	15	30.61%

*1 – includes WDC seasons of F2 regulations
*2 – includes pre-1950 results