These were shot with my A7R2 and FE90-rental at very close range and the bikes were moving pretty fast in relation to the camera. Sorry to say but under these conditions the EVF could just not keep up with the action. When the camera was moving quickly right to left the subjects are always further into the composition than shown in the EVF and it took a bit of time to develop the right amount of anticipation. Not complaining though, just reporting...
Heavy cloud cover made everything dull and lifeless so I added some special sauce in LR, the second image being a bit influenced by Barry's blending techniques.