Here are my previously changed oem rod bearings:
44k km (~27k mls)
Summarized 3 days of trackuse
2 trackdays with BMW M, some laps on public driving (Hockenheim GP, Nürburgring GP, Nordschleife)
Oil was changed 5000-6000 km (3100-3800 mls)
The first rod bearings were replaced ~69k km (43k mls).