.execution is the most demanding format in Season 262. Six weeks, one hundred kilometres, and a single condition that does not relax: every submission must improve on the pace of the previous one.
The Pace Ladder format is specific about this. Improvement is not encouraged—it is required. A session that matches the previous pace is blocked from publishing to this virtual competition. One that is slower fails the same test. Only runs that register a genuine step up in pace can enter the record.
Over six weeks, that creates a structure unlike anything else in the season.
What the ladder asks
The mechanics are simple to state: improve pace each time. The execution is harder. Fatigue accumulates across sessions. Conditions change week to week. The body that produced a given pace in late April has to produce a better one in mid-May, then again in early June.
There is no reset. Each submission extends the chain—or ends it.
The entry point
Where the ladder starts matters as much as where it ends. An opening run that is too fast closes down the available ceiling: there is less room above it to keep improving across the full window. An opening run that is too slow leaves slow kilometres in the record and may not produce enough overall improvement to finish near the top of this online race.
That calibration is one of the first decisions the challenge forces. It cannot be undone.
Frequency and spacing
More submissions give more opportunities to register improvement—but each one requires a genuine step up, and the body needs enough recovery between sessions to actually be faster. Fewer sessions allow longer rest and potentially larger pace jumps, but compress the remaining window and leave less room to maneuver if one session fails to improve.
Neither pacing structure eliminates risk. Each shifts where the risk sits.
The season around the ladder
.execution opens on 25 April and closes on 5 June—covering most of the active season. Streets is open all of May. Solstice starts 20 May. Gravity can appear without notice. The ladder does not pause for that context.
An athlete carrying .execution through May does so while other virtual running events are also asking for their best efforts. The session that extends the chain may be the same session that Streets, Goya, or Solstice also needs.
Verification
The mechanic requires each submission to be verified. Proof is not secondary to pace—it is half the task. A session that runs at the right pace and does not survive verification does not count and does not extend the chain.
The record being built is not just faster runs. It is faster runs that cleared the process.
When the window closes
5 June ends the live phase of this online running challenge. After that, results move through review, and the standings are provisional until the race reaches Results out.
The last valid submission before midnight on 5 June is the one that sets the final result. There is no extending the chain after the window closes.
What the ladder reveals
The Pace Ladder does not reward a single peak effort. It rewards the ability to improve—reliably, over weeks, under load. That is a different kind of fitness from the one that appears in one hard session.
It shows up in whether the chain holds from April through to June, whether each rung was genuinely earned, and whether the final submission is faster than the first by an amount that means something in the standings.