Official NHA Assessment

Race 4: RACING TODAY MR 66 HANDICAP (Open)

Back to Race
Line Horse
Head Gardener
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
3 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Heknows              3    60.0    1    0.00     1.5   66    62           66    +0
2    The Inkosana         3    56.5    2    0.25     1.5   59    55           55    -4
3    San Quintin          6    56.5    3    2.00     0.0   59    63           63    +4
4    Head Gardener        3    58.0    4    3.00     1.5   61    61           61    +0
5    Sunlit From Heaven   3    55.0    5    4.25     1.5   56    54           54    -2
6    Soft Touch           2    48.0    6    4.50     0.0   50    42           42    -8
7    Josi Mo              2    59.0    7    4.75     0.0   67    63           63    -4
8    Exhale               3    61.0    8    16.00    1.5   68    64           64    -4
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Heknows 66 71 66 +5 1.5 -
2 The Inkosana 59 67 55 +12 1.5 -
3 San Quintin 59 58 63 -5 0.0 -
4 Head Gardener Line 61 66 61 +5 1.5
5 Sunlit From Heaven 56 54 54 ✓ Match 1.5 -
6 Soft Touch 50 54 42 +12 0.0 -
7 Josi Mo 67 56 63 -7 0.0 -
8 Exhale 68 66 64 +2 1.5 -
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