Run into the room using exactly 20 tiles of runway (with closed ends) in the other room, or up to 6 pixels more (getting extra run speed exactly $4.4). Jump on the last possible frame, and aim down as Samus approaches the overhang, to avoid bonking it. If successful, Samus will land on the last pillar.

Entrance condition:

{
  "comeInRunning": {
    "speedBooster": true,
    "minTiles": 19.4375,
    "maxTiles": 19.8125
  }
}

Requires:

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

Dev note: Speeds above $4.4 cause Samus to bonk the ceiling, losing all vertical speed, or the overhang, losing all horizontal speed; there is a significant amount of vertical speed to lose, even though it may not appear that way because of how the sandfalls push Samus down. Speeds in the range from $4.0 - $4.3 give a spike in jump speed, resulting in a ceiling bonk even earlier. Speeds below $4.0 are not close to enough to make it across.