Need help understanding play account

[wavygravy2k]

In this game Radinsky gives up a walk and then Donn Pall comes in to relieve. Why is Pall's Pitch Count Fatigue level lower than F9? Pall has a closer setting and the last time he pitched before this game (103) was in game 96.

http://fantasygames.sportingnews.com/stratomatic/league/boxscore.html?group_id=138671&g_id=614

[code:1:50c632d871]*** BOTTOM OF INNING 9 ***
0 P.Incaviglia 4 Single F9
SUBSTITUTE P - Scott Radinsky
0 1 C.Paquette 6 Single F9
0 12 E.Anthony 4 Strike Out F9
1 12 J.Posada 6 Walk F9
SUBSTITUTE P - Donn Pall
SUBSTITUTE PR- Tony Womack
1 123 J.Offerman 2 Single F7
1 123 J.Olerud 1 Triple F6
[/code:1:50c632d871]

[wavygravy2k]

I'm guessing this occurs when a reliever comes in when runners are in scoring position. It's a stressful situation so their endurance takes a small hit. Would this be the reason?

[Knerrpool]

F7 is the fatigue level after that batter. So he came in at F9 and gave up a hit and, I guess, since he is a C0 his fatigue immediately went down.