Slugger Draft Pick success

A bunch of players in my club have a ton of cash in game, after level 15 upgrades there isn't much use for money. We decided to try and get into the HR Derby thing without spending gold. I have tallied our success in drafting players with the bronze draft pick (the only one that doesn't require gold).

After some calculating, overall we used 370 bronze draft picks. The results are 1 four star player, 6 three and a half star players and 19 three star players.

So success rates in a sample size of 370 pics:

4 Star - 0.27%
3.5 Star - 1.62%
3 Star - 5.14%

Or

4 Star player - approximately $2.2 million
3.5 Star player - $370,000
3 Star Player - $117,000