http://replays.springrts.com/replay/db2df352a89dc2377bfd2e0f79b8f899/
2 players * 39 minutes = 78 playerminutes

http://replays.springrts.com/replay/c73af3525ae99ec601375f7679b8f899/
4 players * 25 minutes = 100 playerminutes

http://replays.springrts.com/replay/0548f352a3fc2734fdbd7b2e79b8f899/
4 players * 13 minutes = 52 playerminutes

http://replays.springrts.com/replay/394cf3527237198f3c1f2f5f79b8f899/
4 players * 23 minutes = 92 playerminutes

78
+100
+52
+92
---
322 playerminutes