Official NHA Assessment

Race 3: FOLLOW IN THE BOX SEAT PODCAST MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Zalta Star
Reference for assessment
Exact Matches
1 / 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    Zalta Star           3    59.0    1    0.00     5.0   77    77           77    +0
2    Roy's Grace          4    60.0    2    0.10     3.0   63    83           83    +20
3    Valli Gal            2    60.0    3    2.30     0.0   65    91           91    +26
4    Umzolozolo           2    57.5    4    2.50     0.0   76    86           86    +10
5    K M V Retrofit       3    59.0    5    2.80     5.0   -     79           79    +79
6    Long Street          4    60.0    6    4.00     3.0   63    84           84    +21
7    Madame Pompadour     2    60.0    7    5.90     0.0   58    89           89    +31
8    Magic Maverick       3    60.0    8    9.40     5.0   60    79           79    +19
99   Run For Peace        3    55.0    99   0.00     5.0   -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Zalta Star Line 77 77 77 ✓ Match 5.0
2 Roy's Grace 63 63 83 -20 3.0 -
3 Valli Gal 65 65 91 -26 0.0 -
4 Umzolozolo 76 75 86 -11 0.0 -
5 K M V Retrofit - 69 79 -10 5.0 -
6 Long Street 63 62 84 -22 3.0 -
7 Madame Pompadour 58 56 89 -33 0.0 -
8 Magic Maverick 60 54 79 -25 5.0 -
99 Run For Peace - 54 69 -15 5.0 -
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