Len DuncanLen Duncan compared with team-mates| season | team | team-mate | # | best pos | points | wins | poles | pos | quali | fl | CP | CP/# |
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| 1953 | ? | 27 team-mates | 1 | | | 0 | | 0 | | | | | | | | | | | | | 0 | 0.000 | | 1954 | Ray T Brady | (nobody) | 1 | 31 | | 0 | | 0 | | | | | | | | | | | | | 0 | 0.000 | | 1955 | ? | 9 team-mates | 1 | | | 0 | | 0 | | | | | | | | | | | | | 0 | 0.000 | | 1956 | | 13 team-mates | 1 | | | 0 | | 0 | | | | | | | | | | | | | 0 | 0.000 | | 4 | 2 | 3 | 4 | 31 | - | 0 | | 0 | 0 | | 0 | 0 | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 |
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The marked columns contain the figures of the respective team-mate. CP (comparison points):
Qualified better/worse than team-mate(s): +1/-1
Classified better/worse than team-mate(s): +2/-2
Better/slower fastest lap than team-mate(s): +1/-1
other drivers... | 
