Can someone explain?
How am I only at 68 rr when I got -43 rr from losing and +20 rr from winning

Solution
p2 (0rr)
-20 (p1 80rr)
-23 (p1 57rr)
dodged 3 games in total (-3 x3 = -9rr), leaving you at p1 48rr
+20 (p1 68rr)
-20 (p1 80rr)
-23 (p1 57rr)
+20 (p1 68rr)