Petrov-Vodkin

Multirun, fixed 25 km total, as many runs as needed inside the dates. Scoring follows the mechanic — best total time on the distance once work is verified (detail in the Rulebook).

Clock (UTC). The race is open UTC from 00:00 on 10 September through 23:59 on 30 September. Only runs published to Petrov-Vodkin in that span count; how the twenty-five kilometres split across days is up to the entrant, within format and verification rules.

After the period ends. 30 September closes the live phase; official standings follow later. A gap of a few days before Results out is normal; heavier fields can take longer while verification clears. Provisional order can move until the race is Results out.

Twenty-five kilometres from the tenth to the last day of September: more room than a two-week classic, still a distance that disappears if the first week stays empty. Split it evenly or in fewer, longer runs — the dates do not wait for a late start to become a plan.

September is already stacked when this race opens. Sun (30 km Multirun) and Harvest (50 km Multirun) run through the 30th. Cézanne (25 km Multirun) is live until the 22nd. Thirteen (Classic, 13 km) closes on the 15th. Hyperdrive 50 until the 20th. Buenos Aires (Open) covers the whole season block.

• Early vs late — Clear the twenty-five while the dates are still wide, or compress toward month-end and accept a thinner recovery lane if something slips. Cézanne and Hyperdrive 50 leave the last days of September.

• Many short runs vs fewer long ones — Tracking friction and fatigue trade against flexibility.

• Enter vs stay out — A defined 25 km with proof, or no line on this race. Skipping it is a choice that registers.

A completed 25 km multirun is a clean line: finished or not, inside the UTC dates or not. Late entry still works if the kilometres fit before 23:59 on 30 September UTC.

At Results out, the race locks; until then, provisional standings may still move.