Official NHA Assessment

Race 3: FOLLOW IN THE BOX SEAT PODCAST FM 72 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Indigo Moon
Reference for assessment
Exact Matches
2 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 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    Capetown Beauty      3    54.0    1    0.00     4.5   69    55           69    +0
2    Siege Of Orleans     3    54.5    2    4.20     4.5   70    58           60    -10
3    Indigo Moon          4    56.0    3    5.25     2.0   64    64           64    +0
3    Port Adelaide (AUS)  4    51.0    3    5.25     2.0   62    54           54    -8
5    Que For You          5    53.5    5    5.40     0.0   59    63           63    +4
6    Golden Grove         3    52.0    6    6.15     4.5   68    51           58    -10
7    Emerald Isla         4    55.0    7    6.95     2.0   62    62           62    +0
8    Heartsease           3    60.0    8    8.25     4.5   81    67           71    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Capetown Beauty 69 76 69 +7 4.5 -
2 Siege Of Orleans 70 52 60 -8 4.5 -
3 Indigo Moon Line 64 64 64 ✓ Match 2.0
3 Port Adelaide (AUS) 62 54 54 ✓ Match 2.0 -
5 Que For You 59 67 63 +4 0.0 -
6 Golden Grove 68 65 58 +7 4.5 -
7 Emerald Isla 62 55 62 -7 2.0 -
8 Heartsease 81 73 71 +2 4.5 -
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