As riven, You will have to h her as many times as you can before looking to engage in a fight. This way you will be able to take Riven down quickly.

Make sure that you keep CC'ing and slow her as much as possible. Riven won't be able to do much as her entire kit is based on mobility.

You will want to take her down as quickly as you can in this matchup. The best thing will be to pick her off before a major fight.

Keep the wave close to your tower. The enemy has no sort of sieging potential and can be easily exposed to ganks. As riven, You will need the h h as many times as you can before you try to engage in a fight. This way you will be able to take Riven quickly. Make sure you keep CC'ing and slow down as much as possible. Riven will not be able to do as much as its set is based on mobility. You will want to take it down as quickly as you can in this matchup. The best thing will be to take it before a major fight. Keep the wave near your turn. The enemy does not have some sort of sifting potential and can easily be exposed to the ganks.