After a 45-year break, cross-country running will return to Hamilton Park racecourse this weekend when it hosts the West District Cross-Country Relays.
Lachie, 70, from Bonhill, who became a national hero in 1970 when he won the 10,000m at Meadowbank Stadium at the Commonwealth Games, will present the medals at the event on Saturday, hosted by Glasgow running club Shettleston Harriers.
He won the last race staged at the Lanarkshire course in 1968.
Lachie said: "It will be great to see cross-country running return to Hamilton Park on Saturday.
"The racecourse was the home to cross-country in Scotland.
"This course holds a special place in my heart. It was the only place my dad saw me win when I finished first in the Scottish boys' championships."
More than 600 competitors from 57 clubs will take part in relays on the venue's famous racetrack.