Run into the room using between 11 and 12 tiles of runway in the other room (extra run speed between $2.D and $3.1). Jump somewhat soon after entering the room, and land on the pillar just past the last Evir. To get a controlled landing, it can help to turn around while still in spin, then break spin to stop instantly.

Entrance condition:

{
  "comeInRunning": {
    "speedBooster": true,
    "minTiles": 10.4375
  }
}

Requires:

{
  "notable": "Tricky Speedy Jump (Right to Left)"
}
"canSuitlessMaridia"
"canPlayInSand"
"canTrickyDashJump"

Dev note: A run speed of $2.C also works but requires a last-frame jump; speeds $3.2 and $3.3 can also work with a late jump. Note that there's not a spike in the jump height at this range of values; the 'canTrickyDashJump' is just because of the narrowness of the range that works well: lower speeds will not make it onto the ledge, and higher speeds will catch on a ceiling overhang. There are other, higher ranges of speed values that can also work but they are generally harder to control.