His chart has Jupiter rising before the Sun (the international, the traveller). Many bikers have Mars-Uranus aspects (they have to accelerate speed!) and so has he: Mars is in minor aspect with Uranus (75d) and in Aquarius. Mars and Uranus are in mutual reception, too.
This chart has no angularities but as AC/MC midpoint is semi square Mars we know about the importance of competition (drive, muscles, speed and energy) .
On July 30, 1957 the Progressed Sun had been trine the Moon and semi square Midheaven. Progressed Midheaven was conjunct the Sun. There was a double Sun-MC connection, highlighting the status and position. Transit Pluto square natal Sun/Moon and Chiron, with transit Chiron conjunct Saturn tell us about exhaustion and stress, too. He didn't win in luxury...but he repeated it 4 times!
There are a number of blogs about Lance Armstrong, Bertrand, Contador, Landis and Kohl, Sun-Jupiter and doping. They tell about the charts, transits and progressions in times of competition, winning, falling down and losing.
Doping is related to Sun-Jupiter. When you want more than your body can do, you need some help to be successful...Here are posts about the Sun-Jupiter correspondence with doping cases.
COMPETITION (AND ARGUING) AND MORE ABOUT ARMSTRONG
Lance Armstrong and Alberto Contador keep arguing and wrangling...It is a matter of Mars!
When Lance Armstrong fell hard in the Tour, there was a strong Mars-Saturn connection....
Floyd Landis accused Lance Armstrong of having used doping, too. (May 2010)
Bad times in March 2009 for Lance Armstrong. They showed up in his chart.
Also visit: Astromarkt.net