Most reliable/unreliable CART drivers, 1979-2007

Top 5 highest and lowest finishing percentages in CART, 1979-2007.

Full schedule (75% or more races) only.

1979:
Most reliable:
1. Bobby Unser (93%)
1. Rick Mears (93%)
3. Tom Bagley (92%)
4. Al Unser (79%)
5. Gordon Johncock (71%)
5. Johnny Rutherford (71%)

Least reliable:
1. Spike Gehlhausen (14%)
2. Mike Mosley (33%)
3. Danny Ongais (46%)
4. Pancho Carter (54%)
4. Joe Saldana (54%)


1980:
Most reliable:
1. Johnny Rutherford (83%)
2. Tom Sneva (75%)
2. Rick Mears (75%)
4. Bobby Unser (73%)
5. Pancho Carter (67%)

Least reliable:
1. Al Unser (33%)
2. Danny Ongais (33%)
2. Dick Simon (33%)
4. Jerry Karl (40%)
5. Gordon Johncock (45%)
5. Tom Bagley (45%)

1981:
Most reliable:
1. Rick Mears (100%)
2. Bill Alsup (90%)
3. Tony Bettenhausen Jr. (89%)
4. Bob Lazier (82%)
5. Larry Dickson (78%)

Least reliable:
1. Jerry Karl (11%)
2. Tom Sneva (44%)
2. Dick Simon (44%)
4. Josele Garza (45%)
5. Al Unser (55%)
5. Johnny Rutherford (55%)

1982:
Most reliable:
1. Rick Mears (73%)
2. Bobby Rahal (70%)
3. Roger Mears (64%)
4. Tony Bettenhausen Jr. (60%)
5. Mario Andretti (55%)
5. Gordon Johncock (55%)
5. Tom Sneva (55%)
5. Kevin Cogan (55%)
5. Bill Alsup (55%)

Least reliable:
1. Al Unser (22%)
1. Johnny Rutherford (22%)
3. Pancho Carter (27%)
4. Josele Garza (36%)
5. Geoff Brabham (45%)

1983:
Most reliable:
1. Al Unser (85%)
1. Pancho Carter (85%)
3. Roger Mears (83%)
3. Al Unser Jr. (77%)
5. Teo Fabi (69%)
5. Mario Andretti (69%)

Least reliable:
1. Josele Garza (20%)
2. Kevin Cogan (23%)
3. Mike Mosley (40%)
4. Steve Chassey (45%)
4. Chris Kniefel (45%)

1984:
Most reliable:
1. Tom Sneva (75%)
1. Bobby Rahal (75%)
3. Mario Andretti (69%)
3. Geoff Brabham (69%)
3. Michael Andretti (69%)
6. Gordon Johncock (69%)
6. Scott Brayton (69%)

Least reliable:
1. Ed Pimm (23%)
2. Al Holbert (29%)
3. Roberto Guerrero (38%)
4. Danny Ongais (46%)
5. Pete Halsmer (50%)

1985:
Most reliable:
1. Al Unser (86%)
2. Ed Pimm (77%)
3. Emerson Fittipaldi (73%)
4. Danny Sullivan (67%)
5. Al Unser Jr. (60%)
5. Bobby Rahal (60%)

Least reliable:
1. Roberto Guerrero (29%)
2. Michael Andretti (40%)
3. Mario Andretti (43%)
4. Tom Sneva (53%)
4. Kevin Cogan (53%)
4. Geoff Brabham (53%)
4. Josele Garza (53%)

1986:
Most reliable:
1. Al Unser Jr. (82%)
2. Johnny Rutherford (76%)
3. Danny Sullivan (71%)
4. Michael Andretti (65%)
4. Bobby Rahal (65%)
4. Raul Boesel (65%)
4. Mario Andretti (65%)

Least reliable:
1. Tom Sneva (29%)
2. Roberto Moreno (31%)
3. Arie Luyendyk (40%)
4. Roberto Guerrero (44%)
5. Jacques Villeneuve (46%)


1987:
Most reliable:
1. Bobby Rahal (80%)
2. Michael Andretti (73%)
2. Arie Luyendyk (73%)
4. Geoff Brabham (67%)
4. Josele Garza (67%)

Least reliable:
1. Ludwig Heimrath Jr. (17%)
2. Kevin Cogan (29%)
3. Mario Andretti (33%)
4. Randy Lewis (43%)
5. Derek Daly (46%)

1988:
Most reliable:
1. Bobby Rahal (87%)
2. Howdy Holmes (73%)
2. Rick Mears (73%)
2. Danny Sullivan (73%)
2. Michael Andretti (73%)

Least reliable:
1. Arie Luyendyk (33%)
2. Scott Brayton (33%)
3. Randy Lewis (36%)
4. Tony Bettenhausen Jr. (42%)
4. Roberto Guerrero (42%)

1989:
Most reliable:
1. Rick Mears (93%)
2. Scott Pruett (86%)
3. Emerson Fittipaldi (80%)
4. Danny Sullivan (77%)
5. Al Unser Jr. (73%)
5. Arie Luyendyk (73%)
5. Raul Boesel (73%)
5. Teo Fabi (73%)

Least reliable:
1. A.J. Foyt (17%)
2. Bernard Jourdain (36%)
3. Didier Theys (42%)
3. Guido Dacco (42%)
5. Kevin Cogan (43%)

1990:
Most reliable:
1. Rick Mears (88%)
1. Bobby Rahal (88%)
3. Al Unser Jr. (81%)
3. Emerson Fittipaldi (81%)
3. Scott Goodyear (81%)

Least reliable:
1. Roberto Guerrero (33%)
2. Randy Lewis (50%)
2. Teo Fabi (50%)
2. John Andretti (50%)
5. Didier Theys (58%)
5. Mike Groff (58%)

1991:
Most reliable:
1. Hiro Matsushita (82%)
1. Al Unser Jr. (82%)
3. Bobby Rahal (76%)
3. Tony Bettenhausen Jr. (76%)
3. John Andretti (76%)

Least reliable:
1. Mike Groff (46%)
2. Scott Pruett (47%)
2. Danny Sullivan (47%)
4. Scott Goodyear (59%)
5. Emerson Fittipaldi (65%)
5. Rick Mears (65%)

1992:
Most reliable:
1. Al Unser Jr. (100%)
2. Danny Sullivan (88%)
3. Bobby Rahal (81%)
4. Raul Boesel (77%)
5. John Andretti (75%)
5. Scott Pruett (75%)

Least reliable:
1. Eric Bachelart (46%)
2. Scott Brayton (50%)
2. Buddy Lazier (53%)
4. Eddie Cheever Jr. (63%)
5. Ted Prappas (64%)

1993:
Most reliable:
1. Hiro Matsushita (94%)
2. Emerson Fittipaldi (88%)
3. Bobby Rahal (87%)
4. Raul Boesel (81%)
4. Mario Andretti (81%)
4. Teo Fabi (81%)

Least reliable:
1. Marco Greco (38%)
2. Mark Smith (42%)
3. Stefan Johansson (44%)
4. Roberto Guerrero (46%)
5. Paul Tracy (56%)
5. Robby Gordon (56%)

1994:
Most reliable:
1. Teo Fabi (81%)
2. Hiro Matsuhita (77%)
3. Al Unser Jr. (75%)
3. Robby Gordon (75%)
3. Dominic Dobson (75%)
3. Scott Goodyear (75%)

Least reliable:
1. Mike Groff (44%)
2. Jimmy Vasser (50%)
2. Arie Luyendyk (50%)
2. Mario Andretti (50%)
5. Willy T. Ribbs (53%)

1995:
Most reliable:
1. Jacques Villeneuve (82%)
1. Mauricio Gugelmin (82%)
3. Al Unser Jr. (81%)
4. Bobby Rahal (76%)
4. Scott Pruett (76%)
4. Alessandro Zampedri (76%)
4. Teo Fabi (76%)

Least reliable:
1. Andre Ribeiro (41%)
1. Bryan Herta (41%)
3. Gil de Ferran (47%)
4. Eddie Cheever Jr. (47%)
5. Paul Tracy (53%)
5. Michael Andretti (53%)