Official NHA Assessment

Race 4: TAB MIDDLE STAKES (For horses with nett rating of 105 and below)

Back to Race
Line Horse
Biofarmer
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
8 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Cymric               3    58.0    1    0.00     3.5   101   95           95    -6
2    Bob's Your Uncle     5    54.5    2    0.20     0.0   88    95           95    +7
3    Night Bomber         4    56.0    3    0.60     4.0   91    90           90    -1
4    Biofarmer            4    58.0    4    1.90     4.0   94    94           94    +0
5    Passage Of Power     6    56.5    5    1.95     0.0   95    99           99    +4
6    Silver Tudor         5    58.0    6    2.00     0.0   96    102          102   +6
7    Callmewhenuneedme    4    58.5    7    3.25     4.0   101   95           95    -6
8    Halberdier           4    56.0    8    3.75     4.0   91    90           90    -1
9    Max The Magician     4    56.0    9    4.75     4.0   93    90           90    -3
10   Rollwiththepunches   6    56.0    10   6.50     0.0   92    98           98    +6
11   Tchaikovsky          6    51.0    11   7.70     0.0   81    88           88    +7
12   Just Be Lekker       4    60.5    12   7.80     4.0   103   99           99    -4
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cymric 101 99 95 +4 3.5 -
2 Bob's Your Uncle 88 103 95 +8 0.0 -
3 Night Bomber 91 96 90 +6 4.0 -
4 Biofarmer Line 94 78 94 -16 4.0
5 Passage Of Power 95 76 99 -23 0.0 -
6 Silver Tudor 96 99 102 -3 0.0 -
7 Callmewhenuneedme 101 97 95 +2 4.0 -
8 Halberdier 91 83 90 -7 4.0 -
9 Max The Magician 93 95 90 +5 4.0 -
10 Rollwiththepunches 92 90 98 -8 0.0 -
11 Tchaikovsky 81 81 88 -7 0.0 -
12 Just Be Lekker 103 113 99 +14 4.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points