Official NHA Assessment

Race 4: FOLLOW IN THE BOX SEAT PODCAST MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Sparkling Flame
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
8 / 9
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    Rotunda              3    58.0    1    0.00     6.0   -     68           6     +6
2    Sparkling Flame      3    58.0    2    4.70     6.0   69    69           69    +0
3    Top Ten              4    56.0    3    5.10     3.0   53    70           70    +17
4    Claudina             4    60.0    4    7.60     3.0   58    78           78    +20
5    Golden Grove         3    55.5    5    8.50     6.0   60    63           63    +3
6    Celtic Crystal       3    58.0    6    10.00    6.0   59    68           68    +9
7    Show The FLag        4    60.0    7    15.80    3.0   -     78           78    +78
8    Silver Princess      4    60.0    8    20.50    3.0   51    78           78    +27
9    Brightandbeautiful   3    58.0    9    24.20    6.0   -     68           68    +68
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rotunda - 83 6 +77 6.0 -
2 Sparkling Flame Line 69 59 69 -10 6.0
3 Top Ten 53 50 70 -20 3.0 -
4 Claudina 58 56 78 -22 3.0 -
5 Golden Grove 60 65 63 +2 6.0 -
6 Celtic Crystal 59 53 68 -15 6.0 -
7 Show The FLag - 42 78 -36 3.0 -
8 Silver Princess 51 50 78 -28 3.0 -
9 Brightandbeautiful - - 68 -68 6.0 -
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