There's a few condition that I will retreat on Matsuri:

If I alrd hv 3 win and its still my 1st team and the opponent asked to win or the BP too much diff (either lower or higher)

If I met him/her before and kill him/her, I'll retreat on 2nd meet coz he need collect win too

The last is if he/she's my group mates (My group mates always share if they searching and match so almost impossible we match each other in Matsu except those who not really understand English so well)

Since my lv is 86 plus I nv match ppl with lv below 80 (even ppl who hv semiliar lv with me so rare, mostly I got lv 93 above), I never makes lv as the benchmark in Matsu. But not a rare conditions that I only left 1 team to get 5 wins coz I retreat too. Coz what's the different about we hv complete 10 ninja and 4 ninja left and got 5 wins. The rewards is same.