A couple of work around solutions :
1. Implement a scroll feature, which may be too much hassle ( depending on how much you are being paid for this ),
2. Alternatively move the stop watch counter part to the bottom of the display so that the latest split and counter are always visible, and scroll appropriately based on the height of the screen.
3. It looks like 2 columns of information would fit, so you could implement 5 splits per column with the stop watch counter at the bottom centered.

I would also add the number 1. 2. etc infront of each split just for clarity.

I hope this helps.