- Separate ranks and MMR
- Flex: parties of 1, 2, 3 or 5
- Both count for Victorious wins
- Flex boosts cost 10% less
League has two ranked ladders on Summoner's Rift. Solo/Duo is the one people mean when they say "my rank"; Flex is the one you can play with your friends. They share the tiers, the LP system, the Victorious mission and the season calendar, but they keep separate ranks, separate MMR and separate decay banks — and they are priced differently to boost. This guide lays the two side by side so you can decide which rank to climb, and why a Flex boost costs 10% less here.
- Same tiers, separate ranks: you can be Gold in Solo/Duo and Platinum in Flex; neither affects the other.
- Party sizes: 1–2 in Solo/Duo (with rank windows), 1/2/3/5 in Flex (no fours).
- Both count for the Victorious skin — the 15 wins are combined across the two queues.
- Flex is cheaper to boost because the lobbies are softer: 10% under Solo/Duo per division here.
Side by side
| Ranked Solo/Duo | Ranked Flex | |
|---|---|---|
| Party size | 1 or 2 | 1, 2, 3, 5 — no parties of four |
| Duo / party rank limits | Strict tier windows, 200 LP in Diamond I, none above Master | Looser; parties are matched by the group's rating |
| Rank and MMR | Own | Own — completely separate from Solo/Duo |
| Placements | 5 games after the January reset | 5 games, separately |
| LP system | 100 LP divisions, ±20 baseline, demotion shield | Identical |
| Decay (Diamond+) | Own bank | Own bank |
| Victorious skin | 15 wins combined across both queues; chroma by the higher peak tier | |
| Apex tiers | Master · Grandmaster · Challenger with seat caps | Master · Grandmaster · Challenger, smaller ladder |
| Reputation | The rank that is compared | "For fun with friends" — taken less seriously |
| Boost price here | Base | 10% under Solo/Duo per division |
Why Flex ranks run higher
Three things make a Flex rank easier to hold than the same Solo/Duo rank. Fewer players take it seriously, so the MMR pool at each tier is softer. Full five-stacks with voice comms meet lobbies of mixed parties and win more than their individual ratings predict. And many strong players only touch Flex for the Victorious wins, placing low and leaving. None of this is official — Riot does not publish queue-by-queue skill data — but it is why a Flex rank is read with a discount and why most boosting sites, including this one, price it below Solo/Duo.
Which rank should you climb?
Climb Solo/Duo if…
- You want the rank people recognise, on your profile and on op.gg
- You are aiming for the border, which uses your highest finishing tier
- You mostly play alone or with one friend inside your window
- You want to measure your own improvement — the ladder is honest
Climb Flex if…
- You play with three or four friends and want it to count
- Your friends are outside your Solo/Duo duo window
- You want the Victorious chroma for a tier at the lowest price
- You are Grandmaster or Challenger and want to queue together at all
Rewards: how the two queues combine
The Victorious mission counts wins in both queues toward one total of 15, and the chroma follows your peak tier in either queue — so a Gold Solo/Duo player who hits Platinum in Flex receives the Platinum chroma. The border for collecting all three skins uses your highest finishing tier too. The one thing Flex cannot do is improve the Solo/Duo rank shown by default on your profile and on every tracker.
Boosting Flex vs Solo/Duo
The two services work the same way — division by division, piloted or duo, your roles free and champions as an option — and differ in price and pace. Flex divisions are priced 10% under Solo/Duo here because the booster wins them faster; our boosters often queue Flex as a party with another verified booster, which is allowed and keeps the climb quick. Duo is available on both. If you want a specific chroma at the lowest price, Flex is the order; if you want the rank on your profile, it has to be Solo/Duo.
- League of Legends Wiki (Riot) — Ranked game (queue structure, Flex party sizes, separate ratings), read 2026-10-09
- League of Legends Wiki (Riot) — Rank (Solo/Duo restrictions, LP rules shared by both queues)
- LoLTheory — Victorious skins (wins combined across queues)
All free tools: calculators, percentiles & season countdowns →
Common questions
Is Flex rank the same as Solo/Duo rank?
Which rank do people check?
Does Flex count for the Victorious skin?
Why is a Flex boost cheaper?
Ready to climb the Rift?
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League of Legends and all related assets are © Riot Games; splash art via Data Dragon. BoostPirate isn't endorsed by Riot Games.

