cover
Jeff Diffenderfer profile photo
Jeff Diffenderfer helmet photo
Jeff
Diffenderfer
flag
SCCA June Sprints Formula Mazda

Driver Information

nationality
American
age
74
birthday
28 Mar 1950
hometown
Midland, MI
helmet

Driver Information

nationality
American
age
74
birthday
28 Mar 1950
hometown
Midland, MI
helmet

Competitors

Doug Peterson profile photo
Doug
Peterson
us
age
74
wins
25
poles
16
races
228
podiums
50
fastest laps
11
Robert Noell profile photo
Robert
Noell
us
age
wins
1
poles
0
races
9
podiums
5
fastest laps
0
Zachary Silver profile photo
Zachary
Silver
us
age
28
wins
1
poles
0
races
28
podiums
11
fastest laps
1
Gary Phillips profile photo
Gary
Phillips
us
age
wins
0
poles
0
races
14
podiums
0
fastest laps
0
Stuart Rettie profile photo
Stuart
Rettie
gb
age
65
wins
13
poles
8
races
98
podiums
39
fastest laps
3
Juan Marchand profile photo
Juan
Marchand
pr
age
50
wins
3
poles
1
races
24
podiums
7
fastest laps
2
Dale Vandenbush profile photo
Dale
Vandenbush
us
age
wins
3
poles
1
races
26
podiums
5
fastest laps
2
David Parr profile photo
David
Parr
us
age
wins
2
poles
0
races
24
podiums
12
fastest laps
0
Steve Jenks profile photo
Steve
Jenks
us
age
wins
6
poles
6
races
82
podiums
26
fastest laps
7
Russell Hillenburg profile photo
Russell
Hillenburg
us
age
wins
0
poles
0
races
7
podiums
0
fastest laps
0
Darryl Wills profile photo
Darryl
Wills
us
age
63
wins
21
poles
4
races
97
podiums
28
fastest laps
5
Alan McCallum profile photo
Alan
McCallum
us
age
wins
7
poles
0
races
31
podiums
16
fastest laps
0
Jason Vinkemulder profile photo
Jason
Vinkemulder
us
age
wins
2
poles
1
races
27
podiums
7
fastest laps
0

Career Overview

year
series
team
points
position
2011
NASA Pro Formula Mazda Nationals
Lake Effect Motorsports
0
10th
car
engine
tyres
races
wins
podiums
pole positions
fastest laps
Star (Mazda)
1
0
0
0
0
races
wins
podiums
pole pos
fastest laps
points
1
0
0
0
0
0
year
series
team
points
position
2011
SCCA June Sprints Formula Mazda
car
engine
tyres
races
wins
podiums
pole positions
fastest laps
Star (Mazda)
1
0
0
0
0
races
wins
podiums
pole pos
fastest laps
points
1
0
0
0
0
year
series
team
points
position
2006
NASA National Championships - Spec Miata
0
27th
car
engine
tyres
races
wins
podiums
pole positions
fastest laps
Mazda MX-5 Miata
1.8L I4 NA
Toyo
1
0
0
0
0
races
wins
podiums
pole pos
fastest laps
points
1
0
0
0
0
0
year
type
races
wins
podiums
pole positions
fastest lap
2011
Racing
2
0
0
0
0
2006
Racing
1
0
0
0
0

Related Drivers

Dale Vandenbush profile photo
Dale
Vandenbush
Juan Marchand profile photo
Juan
Marchand
Zachary Silver profile photo
Zachary
Silver
Russell Hillenburg profile photo
Russell
Hillenburg

DriverDB Top 100

pos
driver
championship
points
change
01
Max Verstappen
Formula 1
2216.25
-0.6
02
Lewis Hamilton
Formula 1
2117.65
-2.1
03
Charles Leclerc
Formula 1
2041.5
+2.6
04
Sergio Pérez
Formula 1
2038.7
+0.5
05
Porsche AGLarry ten Voorde
Porsche Carrera Cup Germany
2017.5
+0.5
06
Carlos Sainz
Formula 1
2008
+1.3
07
Lando Norris
Formula 1
1986.4
+4.3
08
ADAC MotorsportRaffaele Marciello
British GT Championship - GT3
1958.95
-4.8
09
INDYCAR PhotographyScott Dixon
IndyCar
1951.4
-4.8
10
Jamie Whincup
V8 Supercars Series
1946.35
-
Based on over 70,000 race results the DriverDB ranking is an objective way to rate drivers without relying on subjective evaluations of championships and categories. Rating is based on the average of the drivers' last 20 races.