who is the only winning driver not from the us?
ludwig heimrath
col : round | date | circuit | winning driver (ta2) | winning vehicle (ta2) | winning driver (ta1) | winning vehicle (ta1) row 1 : 1 | may 21 | sears point | greg pickett | chevrolet corvette | gene bothello | chevrolet corvette row 2 : 2 | june 4 | westwood | ludwig heimrath | porsche 935 | nick engels | chevrolet corvette row 3 : 3 | june 11 | portland | tuck thomas | chevrolet monza | bob matkowitch | chevrolet corvette row 4 : 4 | june 25 | mont-tremblant | monte sheldon | porsche 935 | bob tullius | jaguar xjs row 5 : 5 | july 8 | watkins glen‡ | hal shaw, jr.\n monte shelton | porsche 935 | brian fuerstenau\n bob tullius | jaguar xjs row 6 : 6 | august 13 | brainerd | jerry hansen | chevrolet monza | bob tullius | jaguar xjs row 7 : 7 | august 19 | mosport | greg pickett | chevrolet corvette | bob tullius | jaguar xjs row 8 : 8 | september 4 | road america | greg pickett | chevrolet corvette | bob tullius | jaguar xjs row 9 : 9 | october 8 | laguna seca | greg pickett | chevrolet corvette | bob tullius | jaguar xjs row 10 : 10 | november 5 | mexico city | ludwig heimrath | porsche 935 | bob tullius | jaguar xjs
who is the only winning driver not from the us?
Round Date Circuit Winning driver (TA2) Winning vehicle (TA2) Winning driver (TA1) Winning vehicle (TA1)
1 May 21 Sears Point Greg Pickett Chevrolet Corvette Gene Bothello Chevrolet Corvette
2 June 4 Westwood Ludwig Heimrath Porsche 935 Nick Engels Chevrolet Corvette
3 June 11 Portland Tuck Thomas Chevrolet Monza Bob Matkowitch Chevrolet Corvette
4 June 25 Mont-Tremblant Monte Sheldon Porsche 935 Bob Tullius Jaguar XJS
5 July 8 Watkins Glen‡ Hal Shaw, Jr.\n Monte Shelton Porsche 935 Brian Fuerstenau\n Bob Tullius Jaguar XJS
6 August 13 Brainerd Jerry Hansen Chevrolet Monza Bob Tullius Jaguar XJS
7 August 19 Mosport Greg Pickett Chevrolet Corvette Bob Tullius Jaguar XJS
8 September 4 Road America Greg Pickett Chevrolet Corvette Bob Tullius Jaguar XJS
9 October 8 Laguna Seca Greg Pickett Chevrolet Corvette Bob Tullius Jaguar XJS
10 November 5 Mexico City Ludwig Heimrath Porsche 935 Bob Tullius Jaguar XJS
Ludwig Heimrath