Betting Baseball

Can someone answer my question on this? I have never seen this and I don't know what it means.

<TABLE rules=none cellSpacing=0 cellPadding=0 frame=void><TBODY><TR class=trlabel-2><TD width=30 noWrap>925.</TD><TD> Seattle Mariners
F. Hernandez -R</TD><TD noWrap><INPUT id=editx maxLength=6 size=4 name=S1_12> -1½ +130 </TD><TD noWrap><INPUT id=editx maxLength=6 size=4 name=M1_12> -130 AT
<INPUT id=editx maxLength=6 size=4 name=P1_12> -130 LP </TD><TD noWrap><INPUT id=editx maxLength=6 size=4 name=L1_12> O 7 -120 </TD><TD noWrap> </TD><TD noWrap> </TD></TR><TR class=trlabel-2><TD width=30 noWrap>926.</TD><TD noWrap> Oakland Athletics
B. Sheets -R</TD><TD noWrap><INPUT id=editx maxLength=6 size=4 name=S2_12> +1½ -150 </TD><TD noWrap><INPUT id=editx maxLength=6 size=4 name=M2_12> +110 AT
<INPUT id=editx maxLength=6 size=4 name=P2_12> +110 LP </TD><TD noWrap><INPUT id=editx maxLength=6 size=4 name=L2_12> U 7 -120 </TD></TR></TBODY></TABLE>
What does the -130 AT and -130 LP mean? Does that have to do with listed pitcher?

Thanks

Listed pitcher or action means any pitcher you still want to bet team no matter who pitches

if teh starter gets scratched last second for any reason you have no bet if you chose the listed pitcher option