now these are excellent and I do remember seeing these shots before. purple player is definitely closing distance on camera at a much higher rate since camera is on same side of field and there is much less lateral distance to aid the camera. the camera(you) is working admirably in my opinion.
A couple other words of encouragement. I had previously (starting almost 12 years ago) shot with Nikon low-end DSLRs (D70, D5000). In 2011, I was in between sons playing soccer (they are 9 years apart) and was using my D5000 less and less. I was often using a compact P&S digital camera. It was then that I decided to try M43, starting with a GF3. Soon, I was not using the D5000 at all and decided to switch to M43 fully with the purchase of a G3. Interestingly, it was the first time that I had ever owned two interchangeable lens cameras at the same time. From that point forward, I have owned a small camera (GF3, GX1, E-P5) and a larger camera with EVF (G3, E-M10, E-M1).
Once my younger son began playing more serious soccer in 2012, I realized that I needed to change the AF-S and time my shots more. It wasn't ideal but I was able to get some shots and I stayed with M43. Once I got the E-M1, it was back to the AF-C and I can say that I have been extremely happy.
Here is a portion of a sequence (first few and the last) from the first game I shot with the E-M1, just 1 week after buying a used one in London. It was a spur of the moment purchase because of the price ($580 US) and condition (less than 600 shutter clicks). I can say that shooting with the E-M1 feels just like shooting with a D5000 class DSLR.
I am confident that with a bit of practice, anyone can achieve the same results. I stumbled upon the settings (on this forum), and was lucky to have a set that worked for me right away.