ok BC bettors help me out with this....

[wac]

How in the world do some of these horses win these races??? I cashed 3 tix all day and they were on both juvy horses place on octave w/p on street sense and the ex. but:
1)FM turf ok i told everyone in box the ob was a monster but satwa queen just didnt do much so i can live with that one ok to get beat by a great one
2)sprint- how in the hell does thors echo win that race? last out was a 116 which i think was one of his best ever how does he not bouce? was so frazzled about this race didn't even bet.
3)mile-miesque approval i saw this horse run at Keen and he just didnt look like he did much that day what did i miss?
4)Distaff- played spun sugar b/c i figured would be won by a horse close to lead but not on it round pond really good horse but her odds were pretty good so i figured a lot of people missed here. To add onto the suckiness of this race the tragedy with Pine Island really just put a real cloud over whole thing. Yes, i did say tragedy b/c i really think it is.
5)turf- not too upset with this as had red rocks in ex but scorpion/cacique didnt run a lick i really liked scorpion 2nd off layoff and appeard to be a good horse on paper with back class
6)classic- i thought invasor was sick and missed training was stunned to see 11 run by berni like that b4 race went off thought 6/5 was a gift on berni but bet prmium tap wp

My ? is if you picked some of these long shots what made you pick them? What part of there PP's made you go "yes, here is a good bet"

any help would be appreciated as i am realitively new to the game thnaks