| series | Champcar complete |
| race | Trenton II |
| year | 1966 |
| team | car | entry | driver | start | finish | chassis | engine | laps led | * | |
| Dean Racing | 1 | Dean Van Lines | Mario Andretti | | 1 | 1 | Hawk I [65-1] | Ford DOHC | 199 | |
| Mecom Racing | 24 | American Red Ball | Al Unser | | 2 | 2 | Lola T90 [SL-90-03] | Ford DOHC | ||
| AJ Foyt | 2 | Sheraton-Thompson | AJ Foyt | | 13 | 3 | Lotus 34 [2] | Ford DOHC | ||
| Agajanian | 98 | Agajanian REV 500 | Dick Atkins | | 4 | 4 | JP Shrike 66 [a] | Offy 168 sc | ||
| Lindsey Hopkins | 8 | G.C. Murphy | Roger McCluskey | | 7 | 5 | Eagle 66 [205] | Ford DOHC | ||
| John Zink | 3 | Zink-Urschel-Slick | Jim McElreath | | 3 | 6 | Moore BT12 | Ford DOHC | 1 | |
| Federal Engineering | 38 | Federal Engineering | Al Smith | | 14 | 7 | Ward 66 [1] | Offy 252 | ||
| J Frank Harrison | 96 | J Frank Harrison | Greg Weld | | 22 | 8 | Eisert 65 [2] | Chevy 305 V8 | ||
| Myron Caves | 85 | Caves Buick | Al Miller | | 12 | 9 | Gerhardt 66 [c] | Offy 168 sc | ||
| Walter Flynn | 35 | Enterprise Machine | Ralph Liguori | | 23 | 10 | Flynn 64 D [1] | Offy 252 | ||
| Ken Brenn | 24 | Ken Brenn | Wally Dallenbach | | 25 | 11 | Meskowski 62 D [9] | Offy 252 | ||
| W & W Enterprises | 72 | Weinberger Homes | Gordon Johncock | | 5 | 12 | Gerhardt 66 [i] | Ford DOHC | ||
| Leader Card | 86 | Wynn's | Chuck Hulse | | 11 | 13 | Watson 66 [2] | Offy 252 | ||
| Federal Engineering | 22 | Federal Engineering | Bud Tingelstad | | 8 | 14 | Gerhardt 66 [h] | Offy 252 | ||
| Vatis Enterprises | 53 | Valvoline | Gary Congdon | | 20 | 15 | Huffaker 64 [c] | Offy 252 | ||
| Viking Racing | 36 | Viking Racing | Bob Hurt | | 17 | 16 | Gerhardt 66 [f] | Offy 252 | ||
| Gerhardt | 56 | Gerhardt | Jim Hurtubise | | 24 | 17 | Gerhardt 66 [j] | Offy 168 sc | ||
| Jim Robbins | 27 | Jim Robbins | Billy Foster | | 6 | 18 | Vollstedt 66 [8] | Ford DOHC | ||
| Joe Barzda | 87 | California Speed Shop | Bob Harkey | | 10 | 19 | Halibrand Shrike 65 [e] | Offy 252 | ||
| Gordon Van Liew | 7 | Vita Fresh | Larry Dickson | | 21 | 20 | Gerhardt 66 [e] | Ford DOHC | ||
| Peter Salemi | 81 | Central Excavating | Arnie Knepper | | 18 | 21 | Gerhardt 65 [003] | Offy 252 | ||
| All American Racers | 29 | Bardahl | Lloyd Ruby | | 9 | 22 | Lotus 38 [3] | Ford DOHC | ||
| Leader Card | 95 | Leader Card | Don Branson | | 19 | 23 | Watson 63 FE [7] | Offy 252 | ||
| Michner Racing | 34 | Michner Petroleum | Sam Sessions | | 16 | 24 | Lola T80 [c] | Ford DOHC | ||
| Racing Associates | 39 | Racing Associates | Bobby Grim | | 15 | 25 | Watson 63 FE [6] | Offy 168 tc | ||
| Gordon Van Liew | 11 | Vita Fresh | Ronnie Duman | | 26 | 26 | Huffaker 66 [b] | Offy 168 tc | ||
| AJ Foyt | 6 | AJ Foyt | Joe Leonard | | DNS | Eagle 66 [202] | Ford DOHC | |||
| American Eagle Racing | 61 | American Eagle Racing | Gary Bettenhausen | | DNS | Meskowski 60 D [5] | Offy 252 | |||
| Dayton-Walther | 77 | Dayton-Walther | George Snider | | DNS | Gerhardt 66 [m] | Ford DOHC | |||
| Karl Hall | 71 | Fairchild-Hiller | Gig Stephens | | DNS | Halibrand Shrike 65 [g] | Offy 252 | |||
| Leader Card | 4 | Leader Card | Bobby Unser | | DNS | Gerhardt 66 [k] | Ford DOHC | |||
| Mel Nelson | 58 | Mel Nelson | Carl Williams | | DNS | Kurtis 500J FE [J119-59] | Offy 252 | |||
| Stoye Racing | 97 | Stoye Racing | Ray Duckworth | | DNS | Stoye 63 D [1] | Offy 252 |
