2007: In a rain-interrupted race, Marco was a front runner for most of the afternoon. Marco took the lead on lap 102 during a caution, and rain was swiftly approaching the Speedway. Since the race was beyond the halfway point, if rain washed out the remained of the race, it could have been declared official. With the weather in mind, the restart on lap 107 could have decided the race. Tony Kanaan got the jump into turn 1 on the restart, and took the lead. The red flag came out for rain on lap 113 with Marco sitting in second place. Three hours later the track was dried, and the race resumed. Late in the race, Marco was involved in a spectacular crash with Dan Wheldon on the backstretch which eliminated him from competition. His car flipped upside down after making contact with Wheldon's wheel, slid to the infield, and then righted itself. Marco was unhurt. The race ended moments later when the rain returned.