Sivir's Boomerang Blade returns to her after reaching the max range, so you can shift position to hit enemies who would otherwise have evaded it.
Try saving Spell Shield for enemy abilities that can disable you such as stuns and roots.
Ricochet resets Sivir's basic attack timer on activation, so activating this immediately after landing a normal basic attack will maximize damage output.
Yasuo's shield from Resolve lasts only 2 seconds. Dealing damage to him will trigger it. Wait it out, then engage.
Steel Tempest is very narrow. Dodge laterally if possible.
Yasuo is at his weakest just after he has launched a whirlwind. Engage at that point.
When Yasuo lands two Steel Tempests in a row, his next will fire a tornado. Watch and listen for the associated sound to prepare to dodge.
The stat comparisons shown on this page clarify some strategic Sivir versus Yasuo matchup stats that can help us figure out the differences between the pair. As an example, Sivir’s KDA ratio ([kills + assists] / deaths) of NaN is better than Yasuo’s KDA ratio of NaN, indicating that Sivir may be more central to her team's team fighting capacity than Yasuo..
Sivir normally has a slightly smaller longest killing spree than her matchup does. Typically, she takes less damage than Yasuo. This often reflects differing health capacities, yet it can also illustrate that the one champion has less mobility and thus is not able to escape further harm when poked or engaged.
Both LoL champions are great. Both champs have their pros and cons. In the game's current meta, Sivir usually loses when trying to fight Yasuo, with a 48.2% win rate. Thus, Sivir makes a bad counter to Yasuo.
While Sivir does have a lower winrate compared to Yasuo, when they face off with one another, Sivir also has a much lower learning curve that makes her a less challenging champ to pick up and master. You should be careful when picking Sivir into Yasuo.
Furthermore, Sivir also has only a small amount of utility and CC, a similar amount to Yasuo. This makes her just as valuable during teamfights, especially when trying to counter champions with a lot of burst damage.
While there isn't a single best champion for every situation in League of Legends, in Sivir vs Yasuo matchups, Yasuo is the better champ with a lower win rate, less champion complexity, and a similar amount of utility to help out your allied champions during teamfights.
Sivir is a somewhat poor counter for Yasuo. You will do well by focussing your play on increasing your gold income and taking out objectives. If you are able to do that, you should be able to stand on your own as Sivir against Yasuo.
If you would like to learn all of the intricacies of Sivir to counter Yasuo during both the laning and mid / late game phases of League of Legends, you should continue reading to gather a few extra tricks and insights into this matchup. If you mind the build and tips displayed here, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Sivir usually accumulates a similar amount of CS compared to Yasuo. Champs who on average don't take many minion kills usualy don't have to have much CS to be effective, such as support champions. They are capable of scaling properly off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, typically have to have a lot of items to be effective. In either case, try to surpass the values reported here to do well.
The best items to prioritize in your Sivir versus Yasuo build include Lord Dominik's Regards, Statikk Shiv, and Navori Quickblades. When Sivir included at least these three pieces in her build, she did a lot better vs Yasuo than with most other common builds. In fact, Sivir had an average win rate of 48.2% when playing against Yasuo with this counter build.
To have the highest probability of coming out on top against Yasuo as Sivir, Sivir players should take the Lethal Tempo, Presence of Mind, Legend: Bloodline, Coup de Grace, Biscuit Delivery, and Magical Footwear runes from the Precision and Inspiration rune sets. Of all the rune combinations players chose for Sivir vs Yasuo face-offs, this composite of runes yielded the highest win rate. Notably, these runes provided a 48.2% winrate overall.
If you would like to view Sivir versus Yasuo tips and matchup stats and build suggestions for a an individual division, please choose one from the selection menu above. If viewing for the first time, the stats and guides displayed are computed using all games with data with these champs.