Al Unser, Jr. Champ Car/IndyCar head-to-head driver comparisons
| Opponent | Races | Wins | Losses |
| Kenneth Acheson | 1 | 1 | 0 |
| Bill Alsup | 12 | 11 | 1 |
| Didier André | 12 | 10 | 2 |
| Jeff Andretti | 21 | 18 | 3 |
| John Andretti | 74 | 61 | 13 |
| Marco Andretti | 2 | 0 | 2 |
| Mario Andretti | 186 | 102 | 84 |
| Michael Andretti | 255 | 125 | 130 |
| Ian Ashley | 5 | 5 | 0 |
| Scott Atchison | 16 | 13 | 3 |
| Eric Bachelart | 23 | 20 | 3 |
| Tom Bagley | 1 | 1 | 0 |
| Mauro Baldi | 1 | 1 | 0 |
| Fulvio Ballabio | 6 | 6 | 0 |
| Fabrizio Barbazza | 25 | 16 | 9 |
| Alex Barron | 54 | 27 | 27 |
| Patrick Bedard | 4 | 4 | 0 |
| Donnie Beechler | 18 | 7 | 11 |
| Jon Beekhuis | 14 | 12 | 2 |
| Townsend Bell | 1 | 0 | 1 |
| Ross Bentley | 25 | 20 | 5 |
| Gary Bettenhausen | 28 | 23 | 5 |
| Tony Bettenhausen, Jr. | 77 | 59 | 18 |
| Tom Bigelow | 6 | 5 | 1 |
| Mark Blundell | 59 | 29 | 30 |
| Billy Boat | 37 | 22 | 15 |
| Raul Boesel | 179 | 122 | 57 |
| Brian Bonner | 4 | 4 | 0 |
| Claude Bourbonnais | 5 | 4 | 1 |
| Kenny Bräck | 17 | 8 | 9 |
| Gary Brabham | 2 | 1 | 1 |
| Geoff Brabham | 74 | 50 | 24 |
| Darin Brassfield | 2 | 2 | 0 |
| Scott Brayton | 131 | 102 | 29 |
| Steve Bren | 2 | 2 | 0 |
| Ryan Briscoe | 1 | 0 | 1 |
| Jeff Bucknum | 1 | 1 | 0 |
| Robbie Buhl | 61 | 43 | 18 |
| Phil Caliva | 1 | 1 | 0 |
| Buzz Calkins | 22 | 13 | 9 |
| Tyce Carlson | 11 | 7 | 4 |
| Ed Carpenter | 8 | 4 | 4 |
| Patrick Carpentier | 50 | 24 | 26 |
| Pancho Carter | 70 | 49 | 21 |
| Hélio Castroneves | 73 | 30 | 43 |
| Mike Chandler | 4 | 3 | 1 |
| Steve Chassey | 36 | 32 | 4 |
| Eddie Cheever | 117 | 85 | 32 |
| Ross Cheever | 4 | 4 | 0 |
| P.J. Chesson | 1 | 1 | 0 |
| Andrea Chiesa | 1 | 1 | 0 |
| Chuck Ciprich | 1 | 1 | 0 |
| Kevin Cogan | 101 | 72 | 29 |
| Dale Coyne | 34 | 29 | 5 |
| Jim Crawford | 18 | 14 | 4 |
| Cristiano da Matta | 18 | 8 | 10 |
| Guido Daccò | 23 | 21 | 2 |
| Wally Dallenbach, Jr. | 4 | 4 | 0 |
| Derek Daly | 65 | 48 | 17 |
| Christian Danner | 18 | 16 | 2 |
| Airton Daré | 37 | 22 | 15 |
| Gil de Ferran | 115 | 53 | 62 |
| Tony de Tommaso | 1 | 1 | 0 |
| John De Vries | 5 | 4 | 1 |
| Doug Didero | 5 | 4 | 1 |
| Mark Dismore | 30 | 23 | 7 |
| Scott Dixon | 21 | 6 | 15 |
| Dominic Dobson | 55 | 46 | 9 |
| Milka Duno | 1 | 1 | 0 |
| Fredrik Ekblom | 3 | 3 | 0 |
| Brandon Erwin | 4 | 3 | 1 |
| Cor Euser | 1 | 1 | 0 |
| Corrado Fabi | 4 | 4 | 0 |
| Teo Fabi | 117 | 75 | 42 |
| Juan Manuel Fangio II | 37 | 30 | 7 |
| Dick Ferguson | 11 | 11 | 0 |
| Adrián Fernández | 107 | 62 | 45 |
| Chet Fillip | 9 | 7 | 2 |
| Dennis Firestone | 23 | 18 | 5 |
| Sarah Fisher | 47 | 33 | 14 |
| Christian Fittipaldi | 74 | 35 | 39 |
| Emerson Fittipaldi | 195 | 113 | 82 |
| Gregor Foitek | 2 | 2 | 0 |
| Stan Fox | 12 | 12 | 0 |
| A.J. Foyt | 76 | 63 | 13 |
| Larry Foyt | 2 | 2 | 0 |
| A.J. Foyt IV | 20 | 16 | 4 |
| Franck Fréon | 5 | 4 | 1 |
| Dario Franchitti | 62 | 23 | 39 |
| Jean-Pierre Frey | 4 | 4 | 0 |
| Phillipe Gache | 1 | 1 | 0 |
| Bertrand Gachot | 1 | 1 | 0 |
| Chip Ganassi | 22 | 14 | 8 |
| Luiz Garcia, Jr. | 9 | 5 | 4 |
| Josele Garza | 67 | 49 | 18 |
| Spike Gehlhausen | 7 | 3 | 4 |
| Bruno Giacomelli | 11 | 11 | 0 |
| Felipe Giaffone | 41 | 14 | 27 |
| Memo Gidley | 11 | 6 | 5 |
| Phil Giebler | 1 | 1 | 0 |
| Tom Gloy | 3 | 1 | 2 |
| Scott Goodyear | 106 | 80 | 26 |
| Robby Gordon | 109 | 71 | 38 |
| Stéphan Grégoire | 15 | 7 | 8 |
| Marco Greco | 40 | 35 | 5 |
| Michael Greenfield | 9 | 8 | 1 |
| Mike Groff | 55 | 44 | 11 |
| Robbie Groff | 2 | 2 | 0 |
| Olivier Grouillard | 11 | 8 | 3 |
| Carlos Guerrero | 16 | 13 | 3 |
| Roberto Guerrero | 120 | 86 | 34 |
| Mauricio Gugelmin | 105 | 57 | 48 |
| Dean Hall | 21 | 17 | 4 |
| Pete Halsmer | 29 | 17 | 12 |
| Davey Hamilton | 15 | 10 | 5 |
| Scott Harrington | 3 | 2 | 1 |
| Naoki Hattori | 8 | 4 | 4 |
| Shigeaki Hattori | 35 | 27 | 8 |
| Richie Hearn | 74 | 42 | 32 |
| Ludwig Heimrath, Jr. | 30 | 26 | 4 |
| Jon Herb | 15 | 11 | 4 |
| Bryan Herta | 106 | 54 | 52 |
| Doug Heveron | 1 | 1 | 0 |
| Jay Hill | 1 | 1 | 0 |
| Andy Hillenburg | 1 | 0 | 1 |
| Al Holbert | 14 | 8 | 6 |
| John Hollansworth, Jr. | 2 | 1 | 1 |
| Howdy Holmes | 57 | 37 | 20 |
| Sam Hornish, Jr. | 55 | 17 | 38 |
| Nic Jönsson | 2 | 1 | 1 |
| Paul Jasper | 4 | 2 | 2 |
| Stefan Johansson | 73 | 57 | 16 |
| Gordon Johncock | 27 | 18 | 9 |
| Ronnie Johncox | 2 | 2 | 0 |
| Herm Johnson | 9 | 6 | 3 |
| Ken Johnson | 2 | 2 | 0 |
| Parker Johnstone | 45 | 30 | 15 |
| Alan Jones | 1 | 0 | 1 |
| Davy Jones | 15 | 12 | 3 |
| John Jones | 41 | 34 | 7 |
| P.J. Jones | 58 | 39 | 19 |
| Bernard Jourdain | 18 | 16 | 2 |
| Michel Jourdain, Jr. | 59 | 36 | 23 |
| Bruno Junqueira | 3 | 1 | 2 |
| Tony Kanaan | 59 | 19 | 40 |
| Jerry Karl | 7 | 7 | 0 |
| Rupert Keegan | 3 | 3 | 0 |
| Jimmy Kite | 9 | 8 | 1 |
| Tom Klausler | 2 | 2 | 0 |
| Steve Knapp | 1 | 0 | 1 |
| Chris Kneifel | 19 | 14 | 5 |
| Jorge Koechlin | 1 | 1 | 0 |
| Steve Krisiloff | 1 | 1 | 0 |
| Jeff Krosnoff | 11 | 10 | 1 |
| Phil Krueger | 13 | 11 | 2 |
| Cory Kruseman | 1 | 1 | 0 |
| Dave Kudrave | 8 | 7 | 1 |
| Peter Kuhn | 3 | 3 | 0 |
| Jan Lammers | 10 | 8 | 2 |
| Will Langhorne | 3 | 3 | 0 |
| Randy Lanier | 19 | 16 | 3 |
| Giovanni Lavaggi | 2 | 2 | 0 |
| Eddie Lawson | 11 | 8 | 3 |
| Buddy Lazier | 105 | 75 | 30 |
| Jaques Lazier | 32 | 19 | 13 |
| Anthony Lazzaro | 7 | 5 | 2 |
| Greg Leffler | 4 | 3 | 1 |
| Jason Leffler | 2 | 1 | 1 |
| JJ Lehto | 19 | 11 | 8 |
| Randy Lewis | 80 | 66 | 14 |
| Al Loquasto | 1 | 1 | 0 |
| Arie Luyendyk | 143 | 92 | 51 |
| Arie Luyendyk, Jr. | 1 | 1 | 0 |
| George Mack | 13 | 12 | 1 |
| Jeff MacPherson | 18 | 13 | 5 |
| Jan Magnussen | 11 | 4 | 7 |
| Darren Manning | 4 | 1 | 3 |
| Nigel Mansell | 31 | 18 | 13 |
| Enrique Mansilla | 3 | 2 | 1 |
| Jovy Marcelo | 3 | 3 | 0 |
| Nicola Marozzo | 3 | 3 | 0 |
| Tarso Marques | 4 | 3 | 1 |
| Hideshi Matsuda | 2 | 2 | 0 |
| Hiro Matsushita | 116 | 93 | 23 |
| Kosuke Matsuura | 5 | 1 | 4 |
| Scott Mayer | 3 | 3 | 0 |
| Jim McElreath | 3 | 3 | 0 |
| Robby McGehee | 31 | 20 | 11 |
| Graham McRae | 2 | 2 | 0 |
| Chip Mead | 2 | 2 | 0 |
| Casey Mears | 3 | 2 | 1 |
| Rick Mears | 133 | 71 | 62 |
| Roger Mears | 14 | 9 | 5 |
| Thiago Medeiros | 1 | 1 | 0 |
| Arnd Meier | 29 | 17 | 12 |
| Vitor Meira | 20 | 12 | 8 |
| Chris Menninga | 3 | 3 | 0 |
| Rick Miaskiewicz | 9 | 7 | 2 |
| Dr. Jack Miller | 2 | 2 | 0 |
| Nicolas Minassian | 1 | 0 | 1 |
| Andrea Montermini | 11 | 5 | 6 |
| Juan Pablo Montoya | 19 | 4 | 15 |
| Greg Moore | 70 | 30 | 40 |
| Rocky Moran | 23 | 22 | 1 |
| Roberto Moreno | 63 | 42 | 21 |
| Zak Morioka | 1 | 0 | 1 |
| John Morton | 6 | 4 | 2 |
| Mike Mosley | 10 | 8 | 2 |
| Shinji Nakano | 2 | 2 | 0 |
| Charlie Nearburg | 4 | 4 | 0 |
| Mike Nish | 4 | 4 | 0 |
| Hideki Noda | 6 | 6 | 0 |
| Drake Olson | 1 | 1 | 0 |
| Danny Ongais | 30 | 20 | 10 |
| Tero Palmroth | 12 | 12 | 0 |
| Max Papis | 60 | 25 | 35 |
| Johnny Parsons | 14 | 12 | 2 |
| Danica Patrick | 2 | 0 | 2 |
| John Paul, Jr. | 28 | 17 | 11 |
| Tom Phillips | 1 | 1 | 0 |
| Ed Pimm | 42 | 32 | 10 |
| Nelson Piquet | 1 | 1 | 0 |
| Ted Prappas | 26 | 25 | 1 |
| Scott Pruett | 143 | 78 | 65 |
| Laurent Rédon | 15 | 11 | 4 |
| Bobby Rahal | 254 | 122 | 132 |
| Greg Ray | 46 | 32 | 14 |
| Héctor Rebaque | 1 | 1 | 0 |
| Stevie Reeves | 3 | 2 | 1 |
| Bobby Regester | 1 | 1 | 0 |
| Tony Renna | 5 | 3 | 2 |
| Willy T. Ribbs | 46 | 40 | 6 |
| André Ribeiro | 68 | 46 | 22 |
| Buddy Rice | 22 | 14 | 8 |
| John Richards | 4 | 3 | 1 |
| Chip Robinson | 5 | 5 | 0 |
| Gonzalo Rodríguez | 2 | 0 | 2 |
| Billy Roe | 11 | 10 | 1 |
| Michael Roe | 4 | 4 | 0 |
| Jose Romero | 1 | 1 | 0 |
| Marty Roth | 2 | 2 | 0 |
| Johnny Rutherford | 62 | 44 | 18 |
| Eliseo Salazar | 48 | 27 | 21 |
| Steve Saleen | 7 | 5 | 2 |
| Gualter Salles | 32 | 18 | 14 |
| Vinicio Salmi | 5 | 5 | 0 |
| Franco Scapini | 1 | 0 | 1 |
| Tomas Scheckter | 31 | 18 | 13 |
| Mimmo Schiattarella | 5 | 3 | 2 |
| Jeret Schroeder | 17 | 10 | 7 |
| Vern Schuppan | 1 | 1 | 0 |
| Chico Serra | 1 | 1 | 0 |
| Scott Sharp | 73 | 38 | 35 |
| Jeff Simmons | 3 | 0 | 3 |
| Dick Simon | 52 | 38 | 14 |
| Mark Smith | 26 | 20 | 6 |
| Tom Sneva | 83 | 55 | 28 |
| George Snider | 8 | 7 | 1 |
| Vincenzo Sospiri | 4 | 2 | 2 |
| Joe Sposato | 1 | 1 | 0 |
| Lyn St. James | 11 | 10 | 1 |
| Tony Stewart | 1 | 0 | 1 |
| Hubert Stromberger | 1 | 0 | 1 |
| Danny Sullivan | 167 | 104 | 63 |
| Sammy Swindell | 3 | 3 | 0 |
| Tora Takagi | 19 | 9 | 10 |
| Mark Taylor | 3 | 2 | 1 |
| Bill Tempero | 3 | 3 | 0 |
| Michael Thackwell | 2 | 2 | 0 |
| Didier Theys | 47 | 43 | 4 |
| Brian Till | 20 | 17 | 3 |
| Paul Tracy | 130 | 74 | 56 |
| Rick Treadway | 11 | 9 | 2 |
| Al Unser | 68 | 39 | 29 |
| Johnny Unser | 6 | 5 | 1 |
| Robby Unser | 3 | 2 | 1 |
| Jimmy Vasser | 129 | 70 | 59 |
| Jacques Villeneuve | 31 | 21 | 10 |
| Jacques Villeneuve, Sr. | 35 | 25 | 10 |
| Dennis Vitolo | 40 | 33 | 7 |
| Rich Vogler | 8 | 6 | 2 |
| Bill Vukovich III | 7 | 5 | 2 |
| Bob Ward | 1 | 1 | 0 |
| Jeff Ward | 34 | 20 | 14 |
| Stan Wattles | 4 | 1 | 3 |
| James Weaver | 3 | 3 | 0 |
| Dan Wheldon | 21 | 10 | 11 |
| Bill Whittington | 12 | 10 | 2 |
| Don Whittington | 6 | 4 | 2 |
| Desiré Wilson | 11 | 9 | 2 |
| Cory Witherill | 2 | 1 | 1 |
| Jeff Wood | 50 | 43 | 7 |
| Roger Yasukawa | 19 | 11 | 8 |
| J.J. Yeley | 3 | 2 | 1 |
| Alessandro Zampedri | 26 | 21 | 5 |
| Alex Zanardi | 51 | 14 | 37 |
