You should get £105 shortrun for that return on Bradley ok.
Here's the leaderbaord
1.Kaymer -10
2.Fowler -1
2.Compton -1
4.Bradley +1
4.Day +1
4.Koepka +1
4.Johnson +1
4.Stenson +1
We have a clear winner and a 2nd and 3rd spot full with Fowler and Compton, even though they tie 2nd they fill 2nd and 3rd, we only need to fill 6 places as that's all bookmakers are paying. Now we only have 3 places to allow payment for and 5 player's all tied so we divide 5 (no.of player's) by your 10 pound each way stake (10 lost on win part) which gives us £2. Now as stated we need to fill ONLY 3 places so we multiply the £2 by the 3 places we need to fill which gives us 6. You took 66/1 on Bradley and each way that gives us 16.5/1 at 1/4 the odds, so then multiply 16.5 * 6 + 6 = £105.
Hope this explains well enough.