To get an S rank in LoL, you need to outperform other players on the same champion and position, not hit one universal Riot stat line.
Riot's Champion Mastery guide says your post-game grade is based on your champion, your role, and a set of performance metrics compared against other players in your region. That is why Lux support and Lux mid are different benchmarks, and why a good CS score depends on the role you played.
The useful takeaway is simple: play one champion-role combination, keep your deaths low, stay productive in farm and fights, help secure objectives, and compare your post-game stats to other games on that same pick. There is no public Riot formula that says "3.0 KDA = S" or "7 CS per minute = S" every time.
How S Rank Is Actually Calculated
Riot does not publish the full weighting for S, S-, and S+ grades, but it does publish the part that matters most: you are compared against players on the same champion and position. Your Ahri game is judged against other Ahri games, not the whole mid lane pool, and Lux support is evaluated on completely different expectations than Lux mid — different expected farm, vision, and map duties. Kills help, but in practice players consistently see grades move with the broader picture — farm, vision, objective presence, and deaths — not just the scoreline.
That is why players often feel confused after a high-kill game that only gets an A or A+. If your farm was weak for the role, your vision was poor, or you died too often compared to other players on that champion-role combination, your grade can still fall short.
What Counts Toward S Rank
Riot does not publish exact stat weights, but the same themes show up consistently across player reports. Deaths tend to drag grades down noticeably — a 14/3/5 game and a 14/6/5 game often land very differently even with the same kills. Economy covers CS, gold income, and spending your gold on time. Vision tends to matter more than players expect: wards, control wards, and clearing enemy vision all appear to count. Objectives — dragons, Void Grubs, Herald, Baron, towers, and showing up to teamfights — raise your overall value. And all of it is filtered through your specific role, so ADCs and supports are never evaluated on the same expectations.
| Role | What usually helps most | Common reason players miss S |
|---|---|---|
| ADC | Strong farm, high damage, low deaths, clean teamfight positioning | Good scoreline, but weak CS or too many late deaths |
| Jungle | Objective control, kill participation, efficient clears, low dead time | Farming well but missing dragons, grubs, Herald, or key fights |
| Mid | Farm, damage, roam impact, vision around one side of the map | Getting kills without keeping farm and map impact high |
| Top | Side-lane farm, towers, pressure, low deaths, useful teleport plays | Winning lane early, then falling behind in farm or side pressure |
| Support | Vision, assists, roam timers, peel, engage quality, low deaths | Low ward impact, weak roam timing, or dying for no reason |
What Are the Requirements for S Rank?
There is no official public Riot checklist for S rank. If you search for "S rank requirements," what you really want is a reliable way to judge whether your game looked better than the average game on that same champion and role.
A better checklist is this:
- Stick to one champion and role so you are learning one benchmark instead of five different ones.
- Keep deaths low because unnecessary deaths drag down every other stat.
- Stay strong in role-specific economy such as CS for laners or camp tempo for junglers.
- Show up for objectives and teamfights instead of padding side waves while the game is decided elsewhere.
- Review the post-game screen and compare your farm, damage, vision, and kill participation to what your role usually needs.
That is less satisfying than a single magic number, but it is closer to how the system actually works.
S- vs S vs S+
S-, S, and S+ are all real grades. If your goal is simply to clear high-grade mastery milestones, an S- can still matter. Riot's mastery system changed in 2024, replacing the old token flow with Marks of Mastery, so many older guides on this topic are now partially outdated.
If you are trying to climb from A+ to S-, the gap is often not one big play. It is usually one missing part of a complete game: a few extra deaths, weak side-wave farm, poor warding, or low objective presence.
How to Get S on ADC
ADC is the role where weak farming gets exposed the fastest. Strong CS is expected, but only if you still convert it into damage on dragons, towers, and teamfights — disappearing from fights to pad your farm number will not score well. Late deaths hurt more than most ADC players realize because they cut your uptime and objective presence, so protecting yourself when you have a gold lead matters. If your lane wins early, convert it into plates, dragon setup, and mid-game positioning rather than random skirmishes.
If you need role fundamentals first, this is easier once you are already comfortable with ADC spacing and lane control.
How to Get S on Jungle
Jungle S grades lean harder on map impact than raw KDA. A jungler who farms well but misses every early objective often feels much weaker to the grading system than a jungler with similar gold who controlled grubs, Herald, dragons, and team tempo.
- Do not trade every objective for camps. Efficient clears matter, but the role is judged heavily on objective presence and successful influence on lanes.
- Keep your kill participation high. You do not need every kill, but your team should feel your presence in the fights that matter.
- Trim dead time. Failed ganks, late resets, and wandering between camps are grade killers because they tank both tempo and impact.
If jungle is not already your main role, start with the broader jungle guide and treat S rank as the result of cleaner pathing, not as a separate mini-game.
How to Get S on Mid
Mid lane S grades are usually about balance. You need enough farm to look like a solo laner, enough damage to matter, and enough map impact that your lead touches other lanes and objectives. Mid players who roam constantly but miss too many waves often end with flashy kills and a weak grade. Turn lane priority into something — vision, river control, roams, objective setup. And pick one side of the map to lean: warding and committing correctly helps both your death count and your fight impact.
For the role itself, see the full mid lane guide.
How to Get S on Top
Top lane S grades usually come from winning your own economy while still affecting the map. A top laner who wins lane, keeps side waves pushed, takes towers, and avoids pointless deaths is much easier for the grading system to reward.
- Protect your farm lead. Top is a role where falling off in side lanes can erase a good early game.
- Convert pressure into towers or useful teleports. If your side-lane lead never creates anything, the game looks less complete.
- Avoid coin-flip fights. Top laners often ruin S-worthy games by turning one clean lane into three bad deaths.
If you want more lane-specific help first, use the main top lane guide.
How to Get S on Support
Support is the role where players most often chase the wrong stat. You do not need ADC-level farm, but you do need clear impact: vision, assists, roams, peel, engages, and low deaths. Wards and control wards matter more than many supports expect — vision tends to be one of the clearer signals in support grades. Roams should happen on real timers: after wave states, resets, or lane priority, not randomly mid-wave. And kill participation usually matters more than personal gold, so being present in the fights that matter outweighs farming safely on the side.
If you are learning the role itself, start with the broader support guide.
What S Rank Is Not
- Not a fixed formula: Riot does not publish universal cutoffs for KDA, CS per minute, vision score, or damage.
- Not just kills: A 14/6/5 game can still miss S if your farm, vision, or objective impact lag behind your benchmark.
- Not the same on every role: Support, jungle, ADC, mid, and top are judged differently.
- Not a direct Hextech chest reward anymore: old guides often blur S grades, mastery tokens, and loot. Riot's current loot system works differently, so if you need the loot side, read the guide on Hextech keys and chests.
Questions You Might Have
Do You Need to Win to Get an S Rank?
No. Winning helps because it usually improves your objective control and overall game impact, but players do report earning S and S- grades in losses when their individual game was strong enough relative to the champion-role benchmark.
Why Did I Get Fed and Still Miss S?
Usually because one of the quieter stats was weak for your role. Common reasons are low farm on a solo laner, weak vision on support, poor objective presence on jungle, or too many deaths on ADC.
Is S- Good Enough?
Yes, in many practical cases it is. S- is still a high grade, and Riot's current mastery milestones can still use S- or better.
Is There an Official S Rank Calculator?
No. There are community guesses and rules of thumb, but Riot does not publish an official public calculator for post-game grades.
