Throughout the course of today, I have spent over 290k on the headliner bundle. I went back through and recorded 174 packs worth of data from the pack history on this site, however, I estimate I opened well over 200 packs if we factor in the ones I opened in-game.
For the online packs, I received a total of 696 players. The breakdowns by tier are:
Common Count: 137
Bronze Count: 323
Silver Count: 163
Gold Count: 52
Diamond Count: 21
Off of memory alone, there were 3 diamonds that I pulled while at my console, which were SS Dennis Eckersly, LS Kirby Yates, and FS Keston Hiura, which raises the diamond count to 24 overall.
The best streak of luck that I had was 3 packs in a row containing diamonds, which were LS Trevor Story, SS Larry Doby, and Chris Sale.
Overall, I do believe I broke even once everything sells, but I do not know for certain right now. Feel free to ask any questions you might have.