Retirements in a Season

until 1950 ACF GP

Ignore Indy 500 races
Ignore non-championship races
Note: records involving non-championship races may be inaccurate due to incomplete data.

Finishing position:

Pos	Designer	Year	Retirements
1	Ernesto Maserati	1947	66
2	Dante Giacosa	1947	40
3	Ernesto Maserati	1946	29
4	Reid Railton	1947	27
5	Antonio Lago	1949	20
	Carlo Marchetti	1949	20
	Antonio Lago	1950	20
	Carlo Marchetti	1950	20
9	Reid Railton	1948	15
10	Amédée Gordini	1947	12
10	Gioacchino Colombo	1950	12
12	Ernesto Maserati	1948	11
13	Alberto Massimino	1950	10
14	Reid Railton	1949	8
15	Amédée Gordini	1948	6
15	Reid Railton	1950	6
17	Gioacchino Colombo	1946	5
17	Reid Railton	1946	5
19	Antonio Lago	1948	4
	Carlo Marchetti	1948	4
	Ernesto Maserati	1949	4
	Ernesto Maserati	1950	4
23	Ferdinand Porsche	1948	3
	Amédée Gordini	1949	3
	Gioacchino Colombo	1949	3
	Amédée Gordini	1950	3
	Arialdo Ruggieri	1950	3
	Geoffrey Taylor	1950	3
29	Amédée Gordini	1946	2
	Dante Giacosa	1948	2
	Dante Giacosa	1949	2
	Geoffrey Taylor	1949	2
33	Ferdinand Porsche	1946	1
	Ferdinand Porsche	1947	1
	Gioacchino Colombo	1947	1
	Aurelio Lampredi	1948	1
	Geoffrey Taylor	1948	1
	Aurelio Lampredi	1950	1
	Owen Maddock	1950	1

Finishing position: