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| {{InfoboxLost
| | #REDIRECT [[1971 USAC Championship Car Season (partially found footage of IndyCar races; 1971)]] |
| |title=<center>1971 Marlboro 300</center>
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| |image=1971marlboro3001.jpg
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| |imagecaption=Program for the race.
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| |status=<span style="color:red;">'''Lost'''</span>
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| }}
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| The '''''1971 Marlboro 300''''' (also known as the '''''1971 Trenton 300''''') was the 11th race of the 1971 USAC Championship Car Season. Occurring on 3rd October at the Trenton Speedway, the race would ultimately be won by Bobby Unser in an Eagle-Offenhauser, after having led 190 of the 200 laps. Joe Leonard also became the 1971 USAC Champion after finishing third in a Colt-Ford.
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| ==Background==
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| The ''1971 Marlboro 300'' was the third running of the event, with the annual race lasting 300 miles.<ref name="results">[https://www.racing-reference.info/race-results/1971_Marlboro_300/UO/ ''Racing-Reference'' detailing the qualifying and race results of the event.] Retrieved 4th Jun '22</ref> It was one of two 1971 USAC Championship Car Season races to commence at Trenton Speedway, the other being the Trentonian 200,<ref>[https://www.racing-reference.info/season-stats/1971/UO/ ''Racing-Reference'' detailing the 1971 USAC Championship Car Season schedule.] Retrieved 4th Jun '22</ref> [[1971 Trentonian 200 (lost footage of USAC Championship Car Season race; 1971)|which occurred on 25th April and was won by Mike Mosley in a Watson-Ford]].<ref>[https://www.racing-reference.info/race-results/1971_Trenton_200/UO/ ''Racing-Reference'' detailing the results of the 1971 Trenton 300.] Retrieved 4th Jun '22</ref> Trenton would continue hosting IndyCar races until 1979 before it was dropped from the schedule, with the circuit being demolished in 1980.<ref>[https://www.racingcircuits.info/north-america/usa/trenton-speedway.html ''Racing Circuits'' detailing the history of the Trenton Speedway.] Retrieved 4th Jun '22</ref>
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| Initially, qualifying commenced for a race start on 26th September.<ref name="postponed">[https://www.nytimes.com/1971/09/27/archives/marlboro-300-at-trenton-postponed-to-next-sunday.html ''The New York Times'' reporting on the race being postponed because of rain and Unser breaking the Trenton qualifying record.] Retrieved 4th Jun '22</ref> It was here that Bobby Unser broke the qualifying record at Trenton, posting a speed of 161.420 mph.<ref name="postponed"/> While this ultimately was allowed to stand, Unser and the other drivers were forced to re-qualify as the race was postponed a week because of rain.<ref name="postponed"/> When qualifying resumed, Unser again won the pole position, this time with a speed of 158.781 mph.<ref name="nyt">[https://www.nytimes.com/1971/10/04/archives/bobby-unser-sets-300mile-record-speeds-140771-at-trenton-leonard.html ''The New York Times'' reporting on Unser winning the race.] Retrieved 4th Jun '22</ref><ref name="results"/> Directly behind him was McLaren-Offenhauser's Mark Donohue, with Colt-Offenhauser driver Al Unser lining up third out of 28 competitors.<ref name="results"/>
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| ==The Race==
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| With the starting order decided, the 1971 Marlboro 300 commenced on 3rd October.<ref name="results"/> Unser maintained his lead from the start, ultimately proceeding to dominate the majority of the race.<ref name="nyt"/><ref name="results"/> The only instance where he dropped the first position was between laps 71-80, where he was forced to pit, enabling his brother Al to assume the lead.<ref name="nyt"/><ref name="results"/> Bobby quickly passed Al for the lead on lap 81, with the latter retiring after 134 laps because of a broken radiator.<ref name="results"/>
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| Unser led the remaining 120 laps, and was two laps ahead of McNamara-Ford's Mario Andretti when a crash involving King-Offenhauser's Steve Krisiloff necessitated a caution period.<ref name="nyt"/><ref name="results"/> Unser therefore claimed victory and $16,911 in prize money.<ref name="results"/><ref name="nyt"/> His average speed of 140.771 mph broke the 300-mile Trenton average speed record of 134.381 mph set by Andretti in 1969.<ref name="nyt"/><ref name="results"/> Andretti finished second, while Joe Leonard finished three laps down in third, his result being enough for him to claim the 1971 USAC Championship Car title.<ref>[https://www.racing-reference.info/standings/1971/UO/ ''Racing-Reference'' detailing the final standings of the 1971 USAC Championship Car season.] Retrieved 4th Jun '22</ref><ref name="nyt"/><ref name="results"/>
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| ==Availability==
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| According to ''IndyCar on TV'', the race originally was meant to receive live flag-to-flag coverage from ABC as part of its ''Wide World of Sports'' on 2nd October.<ref name="indycar">[https://sites.google.com/site/indycarontv/home/the-races/usac/1971/1971-trenton-300 ''IndyCar on TV'' detailing the ABC broadcast of the race.] Retrieved 4th Jun '22</ref> However, as rain again delayed the race start, 45 minutes of live footage were instead shown live the next day, alongside the World Figure Skating Championships.<ref name="indycar"/> The broadcast has yet to resurface however, and no footage of the race is currently publicly available.
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| ==Gallery==
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| ===Image===
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| <gallery mode=packed heights=250px>
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| 1971marlboro3002.jpg|Al (1) and Bobby Unser (2) battle for the lead.
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| </gallery>
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| ==See Also==
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| *[[1962 Trenton 100 (lost footage of USAC Championship Car Season race; 1962)]]
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| *[[1962 Trenton 200 (lost footage of USAC Championship Car Season race; 1962)]]
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| *[[1963 Trenton 100 (partially found footage of USAC Championship Car Season race; 1963)]]
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| *[[1963 Trenton 200 (lost footage of USAC Championship Car Season race; 1963)]]
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| *[[1964 Golden State 100 (lost footage of USAC Championship Car Season race; 1964)]]
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| *[[1964 Trenton 100 (lost footage of USAC Championship Car Season race; 1964)]]
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| *[[1965 Golden State 100 (lost footage of USAC Championship Car Season race; 1965)]]
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| *[[1965 Jimmy Bryan Memorial (lost footage of USAC Championship Car Season race; 1965)]]
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| *[[1966 Jimmy Bryan Memorial (lost footage of USAC Championship Car Season race; 1966)]]
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| *[[1966 Trenton 150 (partially found footage of USAC Championship Car Season race; 1966)]]
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| *[[1967 Trenton 150 (lost footage of USAC Championship Car Season race; 1967)]]
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| *[[1968 Tony Bettenhausen 100 (lost footage of USAC Championship Car Season race; 1968)]]
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| *[[1968 Trenton 150 (lost footage of USAC Championship Car Season race; 1968)]]
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| *[[1969 Langhorne 150 (lost footage of USAC Championship Car Season race; 1969)]]
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| *[[1969 Rex Mays Classic (lost footage of USAC Championship Car Season race; 1969)]]
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| *[[1969 Trenton 200 (lost footage of USAC Championship Car Season race; 1969)]]
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| *[[1970 Bobby Ball 150 (lost footage of USAC Championship Car Season race; 1970)]]
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| *[[1970 Jimmy Bryan 150 (partially lost footage of USAC Championship Car Season race; 1970)]]
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| *[[1970 Langhorne 150 (lost footage of USAC Championship Car Season race; 1970)]]
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| *[[1970 Rex Mays Classic (lost footage of USAC Championship Car Season race; 1970)]]
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| *[[1970 Rocky Mountain 150 (partially found footage of USAC Championship Car Season race; 1970)]]
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| *[[1970 Trenton 200 (lost footage of USAC Championship Car Season race; 1970)]]
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| *[[1971 Bobby Ball 150 (lost footage of USAC Championship Car Season race; 1971)]]
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| *[[1971 Jimmy Bryan 150 (partially found footage of USAC Championship Car Season race; 1971)]]
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| *[[1971 Michigan 200 (lost footage of USAC Championship Car Season race; 1971)]]
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| *[[1971 Rex Mays Classic (partially found footage of USAC Championship Car Season race; 1971)]]
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| *[[1971 Schaefer 500 (partially found footage of USAC Championship Car Season race; 1971)]]
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| *[[1971 Trentonian 200 (lost footage of USAC Championship Car Season race; 1971)]]
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| *[[1972 Best Western Motels 150 (lost footage of USAC Championship Car Season race; 1972)]]
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| *[[1972 Indianapolis 500 (partially found footage of USAC Championship Car Season race; 1972)]]
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| *[[1972 Phoenix 150 (partially found footage of USAC Championship Car Season race; 1972)]]
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| *[[1972 Rex Mays Classic (partially found footage of USAC Championship Car Season race; 1972)]]
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| *[[1972 Tony Bettenhausen 200 (lost footage of USAC Championship Car Season race; 1972)]]
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| *[[1972 Trenton Times 300 (lost footage of USAC Championship Car Season race; 1972)]]
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| *[[1972 Trentonian 200 (lost footage of USAC Championship Car Season race; 1972)]]
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| *[[1973 Schaefer 500 (partially found footage of USAC Championship Car Season race; 1973)]]
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| *[[1973 Texas 200 (partially found footage of USAC Championship Car Season race; 1973)]]
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| *[[1974 Phoenix 150 (partially found footage of USAC Championship Car Season race; 1974)]]
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| *[[1974 Schaefer 500 (lost footage of USAC Championship Car Season race; 1974)]]
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| *[[1974 Trentonian 200 (partially found footage of USAC Championship Car Season race; 1974)]]
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| *[[1975 Bricklin 150 (lost footage of USAC Championship Car Season race; 1975)]]
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| *[[1975 Michigan 150 (lost footage of USAC Championship Car Season race; 1975)]]
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| *[[1975 Trentonian 200 (lost footage of USAC Championship Car Season race; 1975)]]
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| *[[1976 Indianapolis 500 (partially found footage of USAC Championship Car Season race; 1976)]]
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| *[[1976 Jimmy Bryan 150 (lost footage of USAC Championship Car Season race; 1976)]]
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| *[[1976 Michigan 150 (lost footage of USAC Championship Car Season race; 1976)]]
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| *[[1976 Schaefer 500 (lost footage of USAC Championship Car Season race; 1976)]]
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| *[[1976 Trenton Times Auto Classic (lost footage of USAC Championship Car Season race; 1976)]]
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| *[[1976 Trentonian 200 (lost footage of USAC Championship Car Season race; 1976)]]
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| *[[1977 American Parts 200 (lost footage of USAC Championship Car Season race; 1977)]]
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| *[[1977 Jimmy Bryan 150 (lost footage of USAC Championship Car Season race; 1977)]]
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| *[[1977 Michigan Grand Prix (lost footage of USAC Championship Car Season race; 1977)]]
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| *[[1977 Rex Mays Classic (lost footage of USAC Championship Car Season race; 1977)]]
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| *[[1977 Schaefer 500 (lost footage of USAC Championship Car Season race; 1977)]]
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| *[[1977 Texas Grand Prix (lost footage of USAC Championship Car Season race; 1977)]]
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| *[[1977 Trentonian 200 (lost footage of USAC Championship Car Season race; 1977)]]
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| *[[1978 Coors 200 (lost footage of USAC Championship Car Season race; 1978)]]
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| *[[1978 Daily Express Indy Silverstone (lost footage of USAC Championship Car Season race; 1978)]]
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| *[[1978 Daily Mail Indy Trophy (partially found CBS and BBC One footage of USAC Championship Car Season race; 1978)]]
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| *[[1978 Norton Twin 200 (lost footage of USAC Championship Car Season race; 1978)]]
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| *[[1979 Arizona Republic / Jimmy Bryan 150 (partially found footage of SCCA/CART IndyCar Series race; 1979)]]
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| *[[1979 California 500 (lost footage of SCCA/CART IndyCar Series race; existence unconfirmed; 1979)]]
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| *[[1979 Gould Grand Prix (lost footage of SCCA/CART IndyCar Series race; 1979)]]
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| *[[1980 Miller High Life 150 (partially found footage of CART PPG IndyCar World Series race; 1980)]]
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| *[[1980 Norton Twin 200 (lost footage of CART PPG IndyCar World Series race; 1980)]]
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| *[[1980 Primera Copa Mexico 150 (lost footage of CART PPG IndyCar World Series race; 1980)]]
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| *[[1980 Tony Bettenhausen 200 (lost footage of CART PPG IndyCar World Series race; 1980)]]
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| *[[1981 Kraco Car Stereo 150 (lost CART PPG IndyCar World Series race; 1981)]]
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| *[[1981 Pocono 500 (lost footage of USAC Championship Car Season race; 1981)]]
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| *[[1996 Las Vegas 500K (partially lost footage of IRL Season race; 1996)]]
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| *[[Indianapolis 500 WFBM-TV Broadcasts (lost racing footage; 1949-1950)]]
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| *[[Indianapolis 500 MCA closed-circuit broadcasts (partially lost racing footage; 1964-1970)]]
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| ==References==
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| {{reflist}}
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| [[Category:Lost recordings of sports events]]
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| [[Category:Completely lost media]]
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