Timeform Favour Authorized In Arc - But Only Just Timeform have Authorized top-rated in Sunday's Arc de Triomphe. But only just.Authorized is rated 1lb clear of the Aidan O'Brien pair of Dylan Thomas and Soldier Of Fortune, and therefore their idea of the likeliest winner this weekend. But, even at the current Betfair odds of 6-4, the premier ratings service believes that the Derby winner doesn't represent any betting value. Kieran Packman, Timeform's Communications Manager, explained: 'The key thing to glean from the ratings is that we see very little between Authorized, Dylan Thomas and Soldier Of Fortune at their best. With that in mind, the value on Betfair at this stage has to lie with the O'Brien pair. 'The general consensus seems to be that Soldier Of Fortune would be inconvenienced by the ground drying out, but we thought he won his trial at Longchamp with something in reserve last time, and that was run on good to firm. 'Both he and Authorized look well above-average Derby winners, their performances at Epsom and the Curragh respectively placing them in the top ten European Derby winners of the last decade. 'Perhaps most eye-catching in terms of ratings compared to position in the market, is Zambezi Sun, who is third favourite on Betfair at the 5-1 mark, but is over a stone behind the three mentioned on form so far. He needs to show significant improvement to even be in the frame.' To win the Arc ? Betfair bet: 6-4 Authorized, 9-2 Soldier Of Fortune, 5-1 Zambezi Sun, 13-2 Dylan Thomas, 16-1 Mandesha, 23-1 Saddex, 41-1 Sagara, 69-1 Getaway, 84-1 Youmzain, 219-1 Dragon Dancer. Prices correct as of 3.30pm, Thursday Oct 4th. TIMEFORM TOP FIVE IN ARC li>Authorized 142Soldier Of Fortune 141+Dylan Thomas 141Mandesha 136Saddex 134