Olaf can combine Berserker Rage, Vicious Strikes, and Ragnarok at low life to become deceptively strong.
The bonus healing granted by Vicious Strikes amplifies your Life Steal from all sources as well as heals from allies.
Rengar's passive enables him to leap out of brush, so avoid fighting him when near bushes.
Rengar puts an indicator over the nearest enemy champion when he is camouflaged during his ultimate.
Rengar gains an empowered ability when his resource bar is full. Try to confront him when it's low.
The stats shown on this page clarify several important Olaf vs. Rengar counter stats that can help us distinguish the differences and similarities between the pair. Olaf’s KDA ratio ([kills + assists] / deaths) of NaN is better than Rengar’s ratio of NaN, highlighting that Olaf may be more central to his team's team fighting effectiveness than Rengar..
Olaf normally has a similar longest killing spree as his enemy does. Typically, he takes less damage than Rengar. This is usually reflective of differing health capacities, but it can also illustrate that the one champ has less mobility and thus is unable to kite away from further harm when engaged or poked.
Both League champions are great champions. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Olaf usually fairs equally well when taking on Rengar, with a 50.1% win rate. Therefore, Olaf makes an ok counter to Rengar.
While Olaf does have a higher win rate than Rengar, when facing one another, Olaf also has a much lower learning curve that makes him a less difficult champ to learn. You still need to be cautious when picking Olaf into Rengar.
Furthermore, Olaf also has almost no amount of utility and CC, a similar amount to Rengar. This often makes her just as valuable during team fights, especially when trying to counter champions with a lot of burst damage.
While there isn't one best champion for every situation in League of Legends, in Olaf vs Rengar matchups, Olaf is the better champ with a similar win rate, less champion complexity, and a similar amount of utility to help out your allies during team fights.
Olaf is a decent counter to Rengar. You will do well by focussing your gameplay on keeping up your gold income and clearing objectives. If you are able to do that, you should hold your own as Olaf against Rengar.
To learn all of the intricacies of Olaf in order to counter Rengar during both the laning and mid / late game phases of League of Legends, you should keep reading to pick up a few extra tricks and insights into this matchup. If you mind the build and stats displayed above, you will increase your win rate by a lot and be that much closer to League of Legends pro players.
Olaf most often racks up much more CS relative to Rengar. Champions who typically don't earn much CS typically don't need much CS to be effective, such as sup champs. These kinds of champions are capable of scaling properly off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, often have to have several high cost items to be effective. In either situation, try to surpass the values reported here to do well.
The most crucial items to have in your Olaf versus Rengar build include Experimental Hexplate, Ravenous Hydra, and Death's Dance. When Olaf incorporated at least these three items in his build, he performed much better when facing Rengar than with many other common item sets. In fact, Olaf boasted an average win rate of 50.1% battling Rengar with this counter build.
To have the greatest chance of annihilating Rengar as Olaf, Olaf players should take the Conqueror, Triumph, Legend: Alacrity, Last Stand, Approach Velocity, and Biscuit Delivery runes from the Precision and Inspiration rune sets. Of all the rune builds players used for Olaf vs Rengar fights, this blending of runes yielded the greatest win rate. Notably, these runes averaged a 50.1% win rate overall.
By default, tips, statistics, and builds on how to beat Rengar as Olaf are given for all ranked divisions. If you would like to narrow the statistics and builds to a particular player tier, you can use the selection menu located earlier in the counter matchup guide.