Two Queues, Two Worlds
League of Legends has two ranked queues: Solo/Duo and Flex. Both give you a rank, both use the same LP and division system, and both go all the way to Challenger. But the experience of playing each one is completely different.
If you've ever wondered which one matters more, when to play each, or why your Flex rank doesn't match your Solo rank, this guide is for you.
What Is Solo/Duo?
Solo/Duo is the main ranked queue. You can enter alone or with one friend (duo). Nobody on your team will be in a group larger than two, which means games depend much more on individual skill.
This is the queue most players consider "the one that matters." When someone says "I'm Diamond," they almost always mean their Solo/Duo rank.
Duo Rank Restrictions
You can't duo with just anyone. There's a rank difference limit between both players. Generally, you can play with someone within one tier of your rank. Starting in 2026, Riot has enabled duo queue at all ranks, including Challenger, thanks to improvements in boosting detection.
What Is Flex?
Flex is the team-oriented ranked queue. You can queue solo, as a duo, as a trio, or as a group of 5. Groups of 4 are not allowed (you'd have to play normals for that).
Flex tends to be more relaxed than Solo/Duo. Games are usually less competitive because organized groups face solo players, which creates imbalances. Many players use Flex to:
- Play ranked with friends who are too far in rank for Solo/Duo
- Practice new champions in a competitive environment without risking their main rank
- Prepare for Clash with their team
- Test specific compositions
Flex Rank Restrictions
Flex is more lenient. Diamond and below, there are no rank restrictions at all. If you want to play with someone Master or above, you need to be at least Emerald.
Key Differences
Independent MMR
Your Solo/Duo MMR and your Flex MMR are completely separate. You can be Emerald in Solo and Gold in Flex, or the other way around. A losing streak in Flex doesn't affect your Solo/Duo MMR at all.
Starting in 2026, Riot adjusted initial Flex MMR to sit closer to your Solo/Duo MMR, reducing the mismatches that happened when a high-elo player entered Flex for the first time with low MMR.
Match Quality
Solo/Duo games tend to be more balanced because everyone is solo or in a duo. In Flex, it's common for a group of 5 premades to face a team of 2+3 or scattered solo players, which can make games feel lopsided.
Rank Perception
In the community, Solo/Duo rank is considered the "real rank." Saying "I'm Plat in Flex" doesn't carry the same weight as "I'm Plat in Solo." This doesn't mean Flex has no value, but it's the reality of how the community perceives it.
Queue Times
Flex generally has longer queue times, especially at higher ranks, because fewer players use it. Solo/Duo is the most popular ranked queue in LoL, so finding a match is usually faster.
When to Play Each
Play Solo/Duo When...
- You want to test your real skill level
- You're focused on improving and climbing
- You want the most balanced matches possible
- You're in peak mental condition and have time to focus
Before jumping in, it can help to check if it's a good time for ranked. Should I Queue helps you evaluate whether you're in shape to perform your best.
Play Flex When...
- You want to play ranked with a group of friends
- You want to practice a new champion or role without extreme pressure
- You're warming up before Solo/Duo
- Your Clash team wants to practice compositions
Which One Matters More?
For most players, Solo/Duo is the queue that defines your level. It's more competitive, more balanced, and it's the benchmark the entire community uses.
But that doesn't mean Flex is useless. If you regularly play with friends, Flex is the best way to get a competitive group experience. And for improving your macro with a coordinated team, nothing beats it.
Ideally, use both. Solo/Duo to measure your real progress and Flex to enjoy the game with friends. Check your performance across both queues by comparing your stats with other players on WhoIsBetter for a complete picture of your level.