Low-Risk Laying for Profit at the Cheltenham Festival

Most of my best ideas come from a random thought out-of-the-blue. This one was no different. I was actually looking at some in-play odds on football when this sprung to mind...

How many 1.01 gubbings have there been at the Cheltenham festival?

First of all,the meaning of "gub"
Should you be of Scottish decent, this would more akin to a smack in the mouth but in exchange betting terms,whilst the physical pain may not be so severe, the emotional hurt of losing out when betting on something at very short odds, will not be so far removed.
So to be "gubbed", in it's most common use in betting, is to have bet on something on the exchanges at perhaps 1.05 (1/20) or lower and still lose.
My first thought was of the runner in the Foxhunters Chase in 2013 which jinked when the race was at his mercy un-shipping his unfortunate jockey for the runner in second to scoop the prize, and it also got me to thinking that the run-in at Cheltenham up the famous hill, has seen many a tired horse out on it's feet wandering aimlessly toward the line only to be caught late on. So how low did these runners trade? How often would it be possible to lay at very low odds, for very little risk and how often would it pay off?
Well in answer to how often could we lay at the price, the simple answer is every race! For every winner will trade at 1.01 as the "certainty gets backed crossing the line, so certainly we would be matched at least once.
What I really wanted to find out is how often would TWO runners [or more] trade at low prices. Would there be any point in laying the field sub 2.00 on the exchanges?
The only way to find out would be to go over the past results at the festival and manually check each race for the in-running low trading figures - And i was aghast to find I only had to cover four years to find at least one occurrence in every single race at the Festival except the OLBG Mares Hurdle!
First things first before i get onto the numbers. I was actually incorrect in my first assumption that the Foxhunters had a 1.01 gubbing, OSCAR DELTA actually was trading at 1.02 when un-shipping Jane Mangan when victory was hers. What I had forgot was that TORFINO BAY in the National Hunt Chase on the Wednesday had traded at 1.01 when left clear at the last only to beat caught in the shadow of the post by Willie Mullins' BACK IN FOCUS.
I have checked back to the 2010 season to find at least one occurrence of this happening in every race at the festival excewpt the Mares, the numbers are fascinating

Here is the list of races, years and runners that have traded sub 2.00 and lost at the Festival - Race by Race, Year, Horse, In Play Low

Including all 75 runners treading below 2.00 and losing
50 of which could have been laid at 1.55 or lower.

Supreme Novice Hurdle

• 2010 Dunguib 1.42
• 2011 Spirit Son 1.23 Sprinter Sacre 1.31
• 2012
• 2013 My Tent Or Yours 1.51

Arkle

• 2010
• 2011 Finians Rainbow 1.50
• 2012
• 2013

JLT Specialty

• 2010 Ogee 1.89
• 2011 Caroles Legacy 1.51
• 2012 
• 2013 White Star Line 1.55

Champion Hurdle

• 2010 
• 2011
• 2012 Hurricane Fly 1.62
• 2013