Yes - I mostly measured distances on a map (ruler) or sometimes physically with a vehicle. For Comrades it was just a pacing chart matched to distance markers. Some highlights: Switching to a digital Casio watch (1985?) Upgrading to a digital watch with a one lap function Upgrading to a digital watch with a 10 lap function (Timex) Upgrading to a digital watch with a 50 lap function! (Timex Ironman IIRC) (Remember it were 'manual' laps, capturing the splits to a spreadsheet afterwards.) Then in 1999-ish I bought my first HRM, a Polar S210 (which I still have and is 100% functional). Transferring settings & training plans via sound, which was actually an S410 function which worked (undoc'ed) with the S210 as well: Later on the GPS tech came and I start off doing some runs with a handheld outdoor unit, carried in a waist belt First real GPS wearable was a Polar M400, bought Jan 2015
