As teammates — same car
Race finishesahead
Qualifyingahead
Arturo Merzario · Tom Belsø
Qualifying compares starting grid position, which covers every era — it includes any grid penalties.
Race H2H
1
—
0
1 shared
Qualifying H2H
1
—
0
1 shared
Championship record
0
World titles
0
0
Runner-up
0
0
Top-3 finishes
0
P12
Best championship
—
Teammate battle by season
1
0
1974
Career totals
Arturo Merzario
Tom Belsø
Championships
0
0
Wins
0
0
Poles
0
0
Podiums
0
0
Fastest laps
0
0
Career points
11
0
Starts
58
2
Rate-adjusted · per start
Arturo Merzario
Tom Belsø
Win rate
0%
0%
Podium rate
0%
0%
Pole rate
0%
0%
Points / start
0.2
0.0
Avg grid
P17.2
P24.0
Avg finish
P17.3
P17.5
Finish rate
31%
50%
Rates reward peak form; totals reward longevity. Avg grid/finish: lower is better.
Why they retired
Arturo Merzario
Tom Belsø
Mechanical retirements
30
1
Crash retirements
7
0
Classified from the finishing status. Mechanical covers car failures, crash covers accidents, collisions and damage — fewer is better on both.
Retirements with an unclear cause: 3 · 0
Milestones & racecraft
1972
Debut season
1974
—
First win
—
—
First pole
—
—
First title
—
P4
Best finish
P8
+0.1
Avg places gained
+6.5
Season points trajectory
Arturo Merzario
Tom Belsø
Final points each season — scoring systems changed over the eras.
Track by track
| Circuit | Arturo Merzario | Tom Belsø |
|---|---|---|
| W · Pod · Best | W · Pod · Best | |
| W · Pod · Best W · Pod · Best | ||
| Kyalami | 0 · 0 · P4 | 0 · 0 · — |
| Arturo Merzario 0 · 0 · P4 0 · 0 · — Tom Belsø | ||
| Scandinavian Raceway | 0 · 0 · P14 | 0 · 0 · P8 |
| Arturo Merzario 0 · 0 · P14 0 · 0 · P8 Tom Belsø | ||
Team history
Arturo Merzario
Ferrari 1972–1973Iso Marlboro 1974Williams 1975Fittipaldi 1975March 1976Wolf 1976March 1977Shadow 1977Merzario 1978–1979
Tom Belsø
Iso Marlboro 1974
19721979
Basis
Head-to-head counts races where both drivers were classified, compared by final position (post-penalty). Teammate section counts only seasons in the same car. Career totals mirror the source data. Data: Jolpica-F1 (CC BY-NC-SA 4.0).