Every figure shows its source. Where a source is missing, the number is a placeholder — and it is never written as fact.

By GamGem ResearchLast updated 23 Sept 2026

Act 5 · Patch 13.06

Split

Vertical, no mid · Ropes and vents

Height decides fights; controlling the vents isolates a site from its rotation.

2 sites · 24 published callouts · in the Competitive pool. Rewards Controller · Sentinel.

Both defaults, and the buy

Attacking
Commit early — a slow default gives the defence both rotations.
Defending
Play the height and let them walk into the choke.
First buy
Commit to one half of the map early; a slow default gives the defence both rotations.
Utility
Smoke the height first, then take the vent — rafters cost two utilities, not one.

Say it in three

Way in
A Main
Plant zone
A Site
They arrive
A Back

All of A: Back · Lobby · Main · Rafters · Ramps · Screens · Sewer · Site · Tower. Callout names are Riot’s own; the reduction to three is ours.

Five minutes in a custom game

  1. 1Walk in through A Main and B Lobby.1 min
  2. 2Stand in A Site and B Site and find two pieces of cover you can plant behind in each.2 min
  3. 3Hold A alone and time how long the rotation takes to reach you.1 min
  4. 4Retake through A Back and B Link — the route the defence uses.1 min

What the library can do here

  • A · Post-plant AttackA Rafters → A Site
  • B · Block vision AttackB Alley → B Tower
  • Mid · Information AttackMid Bottom → Mid Top
Open the whole library

A tested starting point

Commit to one half early and use height rather than crossing it.

  • Omen
  • Breach
  • Cypher
  • Sage
  • Raze
What it covers, and what it cannot do

Split balance history

Riot's notes from patch 1.01 to 13.06 change Split in 2 patches. The latest is patch 2.01, published 2021-01-20.

  1. Patch 2.012021-01-20

    • Increased the width of the B Main doorway
    • This creates a new angle into B Main when standing on the new object.
    • Increased Spike plant zone boundary
    • This allows a new Spike plant location for attackers to defend from within B Main.
    • New material stack for cover in B Site that allows you to isolate angles more effectively
    • This also breaks up a vertical 50/50 angle when peeking into the site from B Main.
    • Reduced depth of this corner to allow pushing into defender spawn with more safety
    • Removed this cubby near defender spawn to allow pushing through this area more safely
    • Increased the width of the Vent Room entrance
    • The new sloped wall also protects you from wall penetration coming from Mid.
    • Simplified the Ramen/Scuttle Crab area
    • Reduce depth of cubby in Sewer to allow pushing through this space more safely
    • Increased the width of the doorway to A Tower and reduced safety of defenders in A Tower
    • This change should increase the value of controlling A Ramps.
    • Adjusted angle of sloped wall
    • This allows the back corner to be cleared slightly earlier from attackers. This angle is still safe from the A Tower, however you can now successfully clear this spot by stepping out onto the Rafters without having to drop down towards site.
    Why, in Riot's words

    This Split update is focused around improving attacker options on the map, as well as reducing 50/50 checks, the depth of certain corners, and opening specific areas on the map by increasing chokepoint widths.

    On top of the changes to B Main, there is an additional trash pile placed in the corner to prevent defenders from hiding in too deep a nook

    Added a sloped wall in the Vent Room, which removes a 50/50 check when entering Vents from Mid

    This should make the map feel more open and allow you to push through and clear this area without having to rely as heavily on utility.

  2. Patch 1.022020-06-23

    Defender Spawn

    • Collision and Nav Mesh (playable terrain) improvements
    Why, in Riot's words

    We’ll continue monitoring how the maps are playing and make adjustments as necessary.

Every Split callout (24)

A
A Back · A Lobby · A Main · A Rafters · A Ramps · A Screens · A Sewer · A Site · A Tower
Attacker Side
Attacker Side Spawn
B
B Alley · B Back · B Link · B Garage · B Rafters · B Site · B Stairs · B Tower · B Lobby
Defender Side
Defender Side Spawn
Mid
Mid Bottom · Mid Mail · Mid Top · Mid Vent

Split in Riot's catalog

Riot's catalog places Split at 35°41'CD'N,139°41'WX'E. 5 languages print it under another name:

Arabic
سبليت
Japanese
スプリット
Korean
스플릿
Chinese (Simplified)
霓虹町
Chinese (Traditional)
雙塔迷城

Written for Split

All maps