Chronomètre infrarouge

Hello, I'm French and I'm looking for a sketch and to get that: Soccer Genius Training: Improve Your Results - YouTube

I have an arduino mega 2560 of the kit
I bought in addition an infrared cell:

The Arduino language is Chinese.

I tested a lot of editing that I do not like or that does not work because material too recent compared to the tutorial found. And here I crack.

A big thank you for your help.

https://forum.arduino.cc/index.php?board=33.0