| Jarno Trulli | Johnny Herbert | |
|---|---|---|
| Career | ||
| Championships | — | — |
| Career span | 1997–2011 | 1989–2000 |
| Seasons | 15 | 12 |
| Race starts | 252 | 160 |
| Teams | Minardi, Prost, Jordan, Renault, Toyota, Lotus Racing | Benetton, Lotus, Sauber, Stewart, Jaguar |
| Wins & podiums era-dependent · not directly comparable across eras | ||
| Wins | 1 | 3 |
| Podiums | 11 | 7 |
| Poles | 4 | 0 |
| Fastest laps | 1 | 0 |
| Era-fair rates career rate · across all seasons | ||
| Win % | 0.4% | 1.9% |
| Podium % | 4.4% | 4.4% |
| Pole % | 1.6% | 0.0% |
| Reliability & consistency era-dependent · see explanation | ||
| DNF rate | 32.1% | 43.1% |
| Points-finish rate | 28.6% | 18.1% |
| Points scoring-era variable · not directly comparable | ||
| Career total | 246.5 | 98 |
The share of race starts that ended without a classified finish. Formula: races not finished ÷ race starts × 100. Races the driver did not start are excluded from both sides. A disqualification counts as a finish that scored nothing, not a DNF. Why it sits apart from the era-fair rates: unlike a win or a podium, finishing meant something very different in different eras. Cars in the 1950s–70s broke constantly; modern cars almost always reach the flag. A high DNF rate in 1955 says far more about the machinery than the driver. Comparing two drivers within the same season is meaningful — they faced the same conditions. Across eras it's context, not a verdict.
The share of race starts that ended in a points-paying position. Formula: races finished in a scoring position ÷ race starts × 100, using that season's real points system. Why it's era-dependent: the number of positions that pay points has changed repeatedly — the top five scored in 1950, the top ten score today. A modern driver has roughly twice as many scoring positions available for the same relative performance, so a higher percentage doesn't necessarily mean a better driver. Like DNF rate, it's shown as context.