Abbrev.

Swimming
S = swim
K = kick
P = pull
H = hard (effort)
mod = moderate (effort)
ez = easy (effort)
smooth = good form, slow to moderate effort
100 Mtn = mountain (25, 50, 75, 100, 75, 50, 25)
200 Mtn = mountain (50, 100, 200, 100, 50)
500 Mtn = mountain (100, 200, 500, 200, 100)
100 Mtn IM = 25fly, 50(fly, back), 75(50breast, 25fr), 100 IM, 75(50fr, 25br), 50ba, 25fly
200 ComeDown/ComeUp = 200, 2 x 100; 200, 4 x 50; 200, 8 x 25; 200, 4 x 50; 200, 2 x 100
300 Comedown = 300, 2 x 150; 300, 3 x 100; 300, 4 x 75; 300, 6 x 50
4-1-1 = 4 x 50, 1 x 200, 1 x 100
1-2-4fifty = 1 x 200, 2 x 100, 4 x 50
3 Stack = 3x200, 3x150, 3x100, 3x50
OverUnder = 25ez, 25 no breath
on = the repeat interval
RI = rest interval (how many seconds rest between each)
w/Fins = with fins
AT = average time
alt = alternate
SD = swim down - moderate to easy