Sure, I'm on cellphone so formatting is gonna be weird, but here goes. (Only looking at 2017 and after because 2016 included his last rework).

I'm gonna be adjusting the stats using the player's winrate, for example, Rookie's overall winrate is 50*1.356, so I'll divide his Ryze winrate 1.356.

Rookie:
Ryze: 20/31
Wr: 64.5%
90% CI: 48.2% to 78.7%
Overall: 232/342
Wr: 67.8%
Adjusted Ryze Wr 90% CI: 35.5% to 58.3%
Adjusted Ryze Wr: 47.6%

Faker:
Ryze: 15/25
Wr: 60%
90% CI: 41.7% to 76.4%
Overall: 175/278
Wr: 61.6%
Adjusted Ryze Wr 90% CI: 43.2% to 62.0%
Adjusted Ryze Wr: 48.7%

Caps:
Ryze: 16/21
Wr: 76.2%
90% CI: 56.3% to 90.1%
Overall: 157/241
Wr: 65.1%
Adjusted Ryze Wr 90% CI: 35.5% to 69.2%
Adjusted Ryze Wr: 56.2%

All combined:
Ryze: 51/77
Wr: 66.2%
90% CI: 56.3% to 75.2%
Overall: 564/861
Wr: 65.5%
Adjusted Ryze Wr 90% CI: 43.0% to 57.4%
Adjusted Ryze Wr: 50.5%