Hi Keith,
Had posted this in response to you on twitter a couple or so days ago – anywhere near?
They’ve all only started 2 GP; number is the number of days between their first and last GP start? However there are others on 14 days (e.g. Toshio Suzuki ‘93) and also some on 7 (e.g. Franck Lagorce ‘94, Bobby Rahal ‘78)… 🤔?
Cheers :)