Singed Runes explained
There's one set of runes for Singed on patch 15.13 that is the clear favorite for LoL players and pros alike. The best Singed rune paths on the position 
Mid are 
Precision as the primary path and 
Sorcery as the secondary path with a pick rate of 65%. Besides picking runes on Singed you should learn how to play Singed and if you are interested in pro matches take a look on how a pro builds Singed. If you want to discuss 
Singed then you should visit the champion subreddit.
Singed runes from primary path
Precision improves attack and sustained damage on Singed troughout the match. Most of high elo players – and our LoL pros in the the major regions – have agreed that 
Conqueror is the best keystone rune to run on Singed. This keystone rune provides additional power in the later stages of a game. As soon as Conqueror is fully charged, Singed deals additional damage and gains life steal. Other primary runes on Singed are 
Triumph, 
Legend: Alacrity and 
Last Stand.
Triumph restores on Singed a part of missing health and award bonus gold, if a champion is killed. Legend: Alacrity grants additional attack speed to Singed. With Last Stand you deal more damage while you are at low health.
Singed runes from secondary path
When it comes to your secondary path, most Singed players prefer to go with Sorcery. Sorcery empoweres abilities of Singed and increases the available champion resources. On the Sorcery path, the best runes for Singed are 
Celerity and 
Nimbus Cloak.
Celerity boosts all movement speed bonuses to Singed. Nimbus Cloak, which grants movement speed upon using a summoner spell, works amazingly well with junglers in particular as they take the shortest cooldown summoner spell, 
Smite.
FAQ for Singed Runes
Which is the best keystone rune on Singed?
The best keystone rune on Singed is Conqueror. This Singed runes setup is then referred as Singed Conqueror.
What runes does Singed use?
Runes from the paths Precision and Sorcery are the most used runes on Singed. For the exact pick rates of Singed runes used, you have to study the rune distribution presented.