Are the events single athlete time trials or mass start? I am guessing single start.
This would normally be timed with a wand type start gate, finish line photocell, and printing timer. We would typically sync the timer to "time of day".
Then we would run Finish Lynx just as back up at the finish line. Just use "no gun sensor" and input the time of day as the running time and do a good manual sync. That way you will get a running visual "TOD" backup.
Run auto capture if you can.