Complex sentence: Despite providing an exciting climax to the season, the race wasn't successful from the hosts' standpoint, as the promoters barely broke even; when prize money checks bounced, Charles Moran and Briggs Cunningham paid the money to save face for their country.
Split into simpler sentences: Despite providing an exciting climax to the season, the race was not successful from the hosts' standpoint, as the promoters barely broke even. When prize money checks bounced, Charles Moran and Briggs Cunningham paid the money to save face for their country.