Official NHA Assessment

Race 3: FOLLOW IN THE BOX SEAT PODCAST APPRENTICE CLASS 5 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 66)

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Line Horse
Blush Of Dawn
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
3 / 8
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Purple Flower        3    57.5    1    0.00     2.0   69    65           65    -4
2    Blush Of Dawn        8    55.0    2    1.50     0.0   64    64           64    +0
3    Quentasia            4    50.5    3    6.60     2.5   55    50           50    -5
4    Pink Diamond         6    55.5    4    7.00     0.0   60    65           65    +5
5    Drive By             6    57.5    5    7.50     0.0   69    69           69    +0
6    Heirloom             4    58.5    6    9.40     2.5   68    66           66    -2
7    Elusive Belle        4    48.5    7    9.55     2.5   51    46           46    -5
8    Sky Velocity         5    56.0    8    12.35    0.0   63    66           66    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Purple Flower 69 74 65 +9 2.0 -
2 Blush Of Dawn Line 64 64 64 ✓ Match 0.0
3 Quentasia 55 58 50 +8 2.5 -
4 Pink Diamond 60 60 65 -5 0.0 -
5 Drive By 69 68 69 -1 0.0 -
6 Heirloom 68 67 66 +1 2.5 -
7 Elusive Belle 51 51 46 +5 2.5 -
8 Sky Velocity 63 57 66 -9 0.0 -
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