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Every player in an LEC starting line-up must now be tied to one in-game role, and must play that role in the game. Riot Games, which runs the LEC, the League of Legends EMEA Championship, recorded the change in its rulebook changelog under an entry dated May 18, 2026, five days before the Spring playoffs start.
The same entry reaches beyond the five on stage. It defines who counts as a team's roster when a substitute is needed at short notice, spells out what a team may say about a signing that is still being reviewed, gives the team that reaches the Split Final unbeaten its own draft advantage, and adjusts how the league's competition week is counted. The changelog lists each change with its rule number and wording; it gives no reason for any of them.
LEC rulebook changelog, entry of May 18, 2026; LEC Spring 2026 primer published by Riot Games on March 6, 2026.
Two rules, one principle
A League of Legends team fields five players, and the rulebook names five positions for them: Top, Jungle, Mid, Bot and Support. Both rules that now tie a starter to one of them are new: the changelog shows no earlier text for either.
Two new rules now do it, from two directions. Rule 3.2.5, in the section on roster modification, says the starting line-up must assign each player to one of the in-game roles, Top, Jungle, Mid, Bot or Support. "No more than one player may select each role," the rule adds.
Rule 7.7.8, in the section on setup time before a game, closes the loop on the day of the match. Players must play the in-game role that was submitted at the time of roster submission, and each team may only have one player in each role. Read together, the two rules mean that the role a team declares when it hands in its line-up is the role the player takes into the game.
Related readWho Are the Women Redefining Esports at EWC 2026?The changelog does not attach a penalty to either rule in the entry itself, and it does not describe any case that led to them. What changes in practice is that a team's line-up sheet now carries a role next to each name, and that sheet binds the five on stage.
How a starting line-up is built
The role rule sits on top of a set of roster requirements that Riot applies to every professional league it runs. They are written in the League of Legends Esports Global Policies, a document published in a 2026 edition with the version number v20251210, which the LEC rulebook defers to on many points.
Article 56 of the Global Policies requires a team to keep at least five eligible players on its competitive roster. Article 57 adds that at least three players in the starting line-up must be residents of the region, a status that depends on where a player has lived and played. Articles 92 and 93 describe the Global Contract Database, known as the GCD: a public team roster list that includes the contract end dates of registered players and coaches. A player or coach on a professional team must be registered to that team in the GCD to be eligible for official matches.
The new rule does not touch the residency count or the minimum of five. It adds one more condition to the line-up a team submits: five names, at least three residents among them, and now five different roles.
Who counts as an emergency substitute
The update also rewrites rule 3.3.2, on emergency substitutes. If an emergency happens on the day of a match, a team has up to one hour to find an immediate substitute from its team roster for a game. If no replacement can be found, the team forfeits, and league officials decide whether an event counts as an emergency.
Related readESL's July 2026 rulebook: CS2 players stay seated and comms rules tightenThe new sentence is the definition of that roster. To clarify, the rule now says, the team roster includes all team members registered in the GCD across LEC and ERL rosters. The ERLs are Riot's EMEA regional leagues, thirteen of them in 2026, which Riot presented in November 2025 as a pathway to high-level competition. A club that also has players registered on an ERL roster may draw on them inside that one-hour window, the rule now makes clear.
The Global Policies set out the wider procedure for what Riot calls a Roster Emergency, which applies across its leagues.
| Point | What the policy says | Article |
|---|---|---|
| Definition | A team cannot compete with the full roster submitted before the event's roster lock; examples include visa issues, travel restrictions, illness or suspensions. | 72 |
| Reporting | Teams report a potential emergency as soon as they become aware of it. | 75 |
| Decision | Riot decides at its sole discretion whether the situation qualifies. | 77 |
| Eligible substitutes | Players contracted with the team and registered in the GCD; players who have not played a Tier 1 league game in the active split; registered coaches, analysts and other team members. | 86 to 88 |
| Timing | The substitute is at the venue and ready at the time Riot sets; the original player returns as soon as cleared. | 82 and 83 |
| Limits | No substitution once a game has started; the procedure ends if a team cannot field three original players 72 hours before an event's first match. | 89 and 90 |
League of Legends Esports Global Policies, 2026 edition. Tier 1 is the top level of league play, the level of the LEC.
The LEC's one-hour rule is the league's own match-day version of that procedure. The role rules apply to it as well: a substitute who comes in fills a starting line-up that, under rule 3.2.5, still needs one player per role.
What a team may announce
Rule 3.2.11 deals with the public side of a roster move. Teams may not announce a roster change that needs league approval as final until the league has approved it. The update keeps that principle and adds a permitted middle step: a team may say that the change is under review by the league, as long as a summary sheet or a trade form has already been submitted.
The rule's scope also changes by one phrase. It used to say the restriction includes acquisitions and re-signings to the same organization. It now says it includes but is not limited to those cases, which makes the list an example rather than the whole of the rule.
Related readWho can enter Fortnite tournaments: age 13, level 350, region lockFor fans, the practical effect is in the wording of announcements. A move that has reached the league but not yet cleared it may now be presented as under review, and only an approved move may be presented as done.
A draft advantage for the Split Final
The 2026 season brought a new draft mechanism to every Riot region. In a page published on January 8, 2026, Riot said that teams that used to earn side selection would now earn first selection: they choose either the side of the map they play on, blue or red, or whether they pick first or second in the draft, and the opponent takes its choice of the remaining option. Riot pointed to the variance it had found in side win rates and said it wanted to prioritize player and team agency over system-driven advantages. The change applied in all regions from the start of the season, which for the LEC was January 17.
New rule 6.8.4 sets how that right works in the last match of a split. In the Split Final, the team that comes from the upper bracket, undefeated in the current playoff bracket, holds the right of first selection for both options in game 1.
The rule gives an example. If Team A reaches the Split Final from the upper bracket and chooses both second pick and blue side, its opponent makes no submission and defaults to the options Team A did not choose. In other words, the team that has not lost in the playoffs sets both the side and the pick order of the opening game.
Related readG2 opens a Performance Lab to study how esports players are developed- Upper bracket teamUndefeated in the playoff bracket, it holds first selection for both options.
- Its two choicesIt picks the map side and the draft order, first or second pick.
- Lower bracket teamIt submits nothing and takes the options left over.
The rule fits the Spring format that Riot published on March 6. The top six teams of the regular season play a double-elimination bracket, in which a team is out only after its second defeat, and every series is a best-of-five, won by the first team to three games. The team that wins the upper side of that bracket reaches the final without a loss; the other finalist has already lost once.
The competition week
The last item of the entry is a line in the glossary. The rulebook defines a competition week, the unit that its deadlines and schedules use, and gives league officials the power to set a different time frame for a given week in special circumstances. The update adds that the start of the competition week is adjusted if the first game starts earlier or later than 5:00 PM local time.
That default hour matches the LEC's usual start. The Spring primer gives 17:00 local time, 5:00 PM, as the start of regular-season match days, and the playoffs open at 17:00 CEST on May 23, with one best-of-five on each match day.
Where the rules apply next
The changes arrive just before the most important matches of the split. According to the Spring primer, the playoffs start on May 23 at 17:00 CEST, with game days from Saturday to Monday. The lower bracket final and the decider for a place at the Mid-Season Invitational, Riot's international tournament between seasons, are on June 6. The Split Final, the first one to use rule 6.8.4, is on June 7.
Two LEC places at the Mid-Season Invitational are at stake, and the event is held in Daejeon, South Korea. For the six teams still playing, every line-up they submit from May 23 carries a role next to each name, and every emergency substitute they might need can come from a roster registered in the GCD across the LEC and the ERL.
The name this event could hold, on the bracket and everywhere else.
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