Horse racing draw advantage bias results Haydock 7F 30yds
Stalls usually positioned Low 

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WINNING STALL NUMBER

 1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
No

of

R

U

N

E

R

S

8   1 11     111 1  
9 1 11   1     1   11
10 11 1111   11 11 11     11 1
11   1 1 1 1 1   111     1
12     1 1 1   1     1    
13   1 1         1         1
14 1   1   11 1 1         11    
15         1 1 1                
16 1 111 11 1         11 1 11   1   1 1
17                                  
18                                    
19                                      
20                                        
21                                          
22                                            
23                                              
3 8 5 4 7 2

<--Good or better -->

5 0 4 1 1 2
29 9

Copyright 2005 [H Hutchinson]. All rights reserved.

The best way to eliminate a draw advantage is to stop racing over a course and distance where a minority of stalls has been favoured.
I believe Haydock have taken this drastic measure to eliminate an embarrassment of wins from Low stalls in 7F races.

A very strong pattern, but unfortunately the number of races over this course and distance was greatly reduced during 2004 to just 3 races.
Could it have anything to do with the strength of this pattern ?
There were only 2 races with 8 or more runners in 2005 and 2006.
Most newspaper advice seems to concentrate on sprint races at Haydock, and usually there is no mention of an advantage on the round course, so we may assume that this pattern of results is little known at least to the press, if not to the Haydock management.
There is a left hand bend of 180 degrees shortly after the start in these races which probably favours horses drawn Low nearest to the rail.

On good or better going, the Bottom half Top half split favours the Bottom half of the draw by 29 wins to 9 (a ratio of 3 to1).
On good or better going, stalls 1 to 6 also won 29 of 38 races 76 %.
On good or better going in the last 3 years, stalls 1 to 6 won 4 of 4 races.

On good/good to soft in places or softer going, there are spreads of results throughout this chart.

2006 results :- 2-10, 10-12

2005 results :-  6-8, 2-10

2004 results :-  2-9, 4-10, 5-12