1970 Indianapolis 500
|Indianapolis Motor Speedway|
|Season||1970 USAC Trail|
|Date||May 30, 1970|
|Winner||Al Unser, Sr.|
|Winning team||Vel's Parnelli Jones Racing|
|Average speed||155.749 mph (250.654 km/h)|
|Pole position||Al Unser, Sr.|
|Pole speed||170.221 mph (273.944 km/h)|
|Fastest qualifier||Al Unser, Sr.|
|Rookie of the Year||Donnie Allison|
|Most laps led||Al Unser, Sr. (190)|
|National anthem||Al Hirt|
|Back Home Again in Indiana||Saverio Saridis|
|Starting Command||Tony Hulman|
|Pace car||Oldsmobile 442|
|Pace car driver||Rodger Ward|
|TV in the United States|
|Network||ABC's Wide World of Sports|
|Announcers||Jim McKay, Rodger Ward|
The 54th 500 Mile International Sweepstakes was held at the Indianapolis Motor Speedway on Saturday, May 30, 1970.
Al Unser, Sr. dominated the race, leading 190 laps en route to victory. He joined his brother Bobby as the first duo of brothers to win the Indianapolis 500. It was the first of four victories for Al at Indianapolis. Car owner Parnelli Jones, who won the race as a driver in 1963, became the first individual to win separately as a driver and as an owner.
Unser took home $271,697 out of a record $1,000,002 purse. For the first time in Indy history, the total prize fund topped $1 million.
Rain on race morning delayed the start by about thirty minutes. On the pace lap, Jim Malloy smacked the outside wall in turn four, which delayed the start further.
All 33 cars in the field were turbocharged for the first time. This would be the final 500 in which the winner celebrated in the old victory lane at the south end of the pits. Victory lane would be relocated for 1971.
Race schedule 
Practice and Time trials 
Al Unser, Sr. set the fastest speed during practice, with a lap of 171.233 mph. Unser led the speed chart on five of the practice days, and was the only driver to crack the 170 mph barrier during the first two weeks. A. J. Foyt (169.173 mph) and Art Pollard (169.1 mph) were close behind.
John Cannon wrecked on Sunday May 10, and was unable to qualify. On Monday May 11, defending race winner Mario Andretti] spun and wrecked in turn four. His car hit the inside wall twice, and the car was heavily damaged. Andretti was not injured.
On Tuesday May 12, Dennis Hulme's car caught fire in turn three. He bailed from the moving machine, suffering burns to his hands and feet. He withdrew due to the injuries.
Pole Day - Saturday May 16 
Al Unser, Sr. won the pole position over Johnny Rutherford by 0.01 seconds, a record closest margin for the pole position at the time. A. J. Foyt rounded out the "all over 170 mph" front row. Unser's pole speed of 170.221 mph (his fastest single lap was 170.358 mph) was not a record - which marked the first time since the 1940s that two consecutive years went by without track records set during time trials at Indy.
Rain halted pole day qualifying at 3:42 p.m. with 17 cars in the field . A few cars (namely Lloyd Ruby, Gary Bettenhausen, and Peter Revson) were still waiting in line when the rains came. USAC officials closed the track for the day, and those cars were deemed ineligible for the pole round. In subsequent years, the rules would be changed to allow all cars in the original qualifying draw order at least one chance to make an attempt during the pole round, regardless if it extended into an additional calendar day due to rain.
Rookie Tony Adamowicz suffered bad luck during his attempt. On his first qualifying lap, the yellow light was turned on by error. He slowed down, and his first lap was turned in at 160.829 mph. The green light came back on moments later, and he completed the run. Though he had two laps over 166 mph, his first lap pulled his average down to 164.820 mph, and made him the second-slowest car in the field for the day.
Second Day - Sunday May 17 
Three drivers shut out from the pole round came back to qualify on the second day. Peter Revson (167.942 mph) was the 9th-fastest car in the field, but lined up 18th due to being a second day qualifier. Lloyd Ruby had a lap over 169.4 mph, but blew the engine on his final qualifying lap. Ruby went out again later in the day, but waved off after one slow lap.
Third Day - Saturday May 23 
After a disappointing first weekend, Lloyd Ruby rebounded to complete his qualifying attempt at 168.895 mph. A busy day saw 14 attempts, and the field was filled to 33 cars. Two drivers (Bentley Warren and Tony Adamowicz) were bumped.
Bump Day - Sunday May 24 
Jim McElreath put the fourth Foyt entry in the field, bumping Bartlett. No other cars, however, were able to show enough speed to make the field. Jigger Sirois, infamous for missing the 1969 race, fell far short in Jack Adam's Turbine car.
Race recap 
Rain delayed the start of the race by about 25 minutes. On the final pace lap, the field was coming through turn four to take the green flag. Suddenly, Jim Malloy on the outside of the third row, suffered a rear suspension failure, and smacked the outside wall. His car veered across the track to the inside, but narrowly avoided contact with any other car. The field was halted on the mainstretch under the red flag to clean up the accident.
The field was restarted after the red flag, and 32 cars took the green flag. Johnny Rutherford swept across to take the lead into turn one. Down the backstretch, Al Unser, Sr. tucked in behind, and took the lead going into turn three. Unser led the first lap.
Lloyd Ruby, who started 25th, notably passed ten cars on the first lap. By the third lap, Ruby was in the top ten.
First half 
The early laps focused on the mad charge of Lloyd Ruby, who was up to 5th place by about lap 28. The yellow flag came out when Art Pollard blew an engine. Under the caution, Mario Andretti was forced to make an unscheduled pit stop to repair to loose bodywork. He rejoined the race, but lost many positions.
Al Unser, Sr. led the first 48 laps. He gave up the lead to A. J. Foyt during a pit stop on lap 49. One lap later, Foyt entered the pits, giving the lead to Lloyd Ruby. Suddenly Ruby was given the black flag for smoke due to broken drive gears. Ruby's dramatic race was over after completing only 54 laps. Meanwhile, Johnny Rutherford stalled exiting the pits, losing considerable track position.
Unser re-took the lead on lap 54, and led until the halfway point.
Second half 
On lap 172, Roger McCluskey (driving for Kenyon), spun going into turn three, and crashed hard into the outside wall. Ronnie Bucknum was collected in the crash. Sammy Sessions locked up the brakes, and nearly slid into the crashed cars. Sessions, gained control, and weaved his way through, and continued. Spilled fuel started pouring from one of the crashed cars, and a small fire broke out. As the field approached the scene, several cars got into the fluid and spun. Wally Dallenbach and Jack Brabham spun but continued. The fire was quickly extinguished.
With Unser leading comfortably, the focus became the battle for second between Mark Donohue and A. J. Foyt. With only a handful of laps left, Foyt suddenly slowed in turn one. He pulled to the apron, but stayed out on the track attempting to nurse the car to the finish line.
Box score 
|15||27||19||Ronnie Bucknum||166.136||23||162||0||Crash T3|
|16||22||23|| Mel Kenyon
(Relieved by Roger McCluskey; Laps 112-160)
|17||24||22||Wally Dallenbach, Sr.||165.601||31||143||0||Coil|
|19||13||27||LeeRoy Yarbrough||166.559||19||107||0||Turbo Gear|
|23||30||58||Bill Vukovich II||165.753||28||78||0||Clutch|
|27||25||25||Lloyd Ruby||168.895||6||54||2||Drive Gear|
|29||14||97||Bruce Walkup||166.459||20||44||0||Timing Gear|
|31||21||20||George Follmer||166.052||25||18||0||Oil Gasket|
|33||9||31||Jim Malloy||167.895||11||0||0||Crash T4|
|Tire participation chart|
|Supplier||No. of starters|
|* - Denotes race winner|
Qualifying chronology 
|Saturday, May 16, 1971|
|3||5||GORDON JOHNCOCK||3||—||—||—||—||FLAGGED OFF|
|4||5||GORDON JOHNCOCK||2||—||—||—||—||WAVED OFF|
|5||7||A. J. FOYT||4||—||170.004||3||3|
|7||36||TONY ADAMOWICZ||4||—||164.820||—||—||BUMPED BY #58|
|10||95||SAM POSEY||0||—||—||—||—||BLOWN ENGINE|
|13||92||STEVE KRISILOFF||4||—||162.448||—||—||BUMPED BY #89|
|15||23||MEL KENYON||2||—||—||—||—||PULLED OFF|
|17||76||KEVIN BARTLETT||1||—||—||—||—||WAVED OFF|
|18||27||LEE ROY YARBROUGH||4||3:36.0700||166.613||18||13|
|20||94||BENTLEY WARREN||0||—||—||—||—||PULLED OFF|
|25||74||JIM MCELREATH||1||—||—||—||—||PULLED OFF|
|Sunday May 17, 1971|
|28||19||RONNIE BUCKNUM||2||—||—||—||—||WAVED OFF|
|29||12||LLOYD RUBY||3||—||—||—||—||BLOWN ENGINE|
|32||74||JIM MCELREATH||4||—||163.592||—||—||BUMPED BY #32|
|34||76||KEVIN BARTLETT||3||—||—||—||—||WAVED OFF|
|35||12||LLOYD RUBY||1||—||—||—||—||PULLED OFF|
|Saturday May 23, 1971|
|41||94||BENTLEY WARREN||4||3:38.4400||164.805||—||—||BUMPED BY #44|
|47||77||KEVIN BARTLETT||4||3:37.8400||165.259||—||—||BUMPED BY #14|
|48||89||JERRY GRANT||4||3:36.8900||165.983||26||29||BUMPS #92|
|49||78||LARRY DICKSON||1||—||—||—||—||PULLED OFF|
|50||32||JACK BRABHAM||4||—||166.397||22||26||BUMPS #74|
|51||50||ARNIE KNEPPER||2||—||—||—||—||WAVED OFF|
|52||17||JOHN CANNON||2||—||—||—||—||WAVED OFF|
|53||44||DICK SIMON||4||3:37.4600||165.548||32||31||BUMPS #94|
|54||58||BILLY VUKOVICH II||4||3:37.1900||165.753||28||30||BUMPS #36|
|Sunday May 24, 1971|
|55||54||JIGGER SIROIS||4||3:38.5900||164.692||—||—||TOO SLOW|
|56||14||JIM MCELREATH||4||3:35.8000||166.821||16||33||BUMPS #77|
|58||99||DENNY ZIMMERMAN||4||3:46.5400||158.912||—||—||TOO SLOW|
|59||21||JOHN CANNON||3||—||—||—||—||WAVED OFF|
|60||53||ARNIE KNEPPER||4||3:37.7600||165.320||—||—||TOO SLOW|
|61||8||LARRY DICKSON||4||3:47.1600||158.479||—||—||TOO SLOW|
The race was carried live on the IMS Radio Network. Sid Collins served as chief announcer for the 23rd consecutive year. Len Sutton served as "driver expert" for the fifth year. At the conclusion of the race, Lou Palmer reported from victory lane.
The entire on-air crew remained mostly consistent from 1966-1969.
The broadcast was carried by over 1,000 affiliates in all fifty states, AFN, the CBC, and reached locations such as Vietnam and had four foreign language translations. The broadcast had an estimated 120 million listeners worldwide.
|Indianapolis Motor Speedway Radio Network|
|Booth Announcers||Turn Reporters||Pit/garage reporters|
Turn 1: Mike Ahern
|Chuck Marloe (north)
Luke Walton (center)
Lou Palmer (south)
The race was carried in the United States on ABC's Wide World of Sports. The broadcast aired on Saturday June 6. Jim McKay anchored the broadcast with Rodger Ward and Chris Economaki as analysts. Ward drove the pace car at the start of the race.
The broadcast has re-aired on ESPN Classic starting in May 2011.
See also 
|Wikimedia Commons has media related to: 1970 Indianapolis 500|
Works cited 
- 1970 Indianapolis 500 Press Information - Daily Trackside Summary
- Indianapolis 500 History: Race & All-Time Stats - Official Site
- 1970 Indianapolis 500 at RacingReference.info
- 1970 Indianapolis 500 Radio Broadcast, Indianapolis Motor Speedway Radio Network
|1969 Indianapolis 500
|1970 Indianapolis 500
|1971 Indianapolis 500