Official NHA Assessment

Race 3: RACING TODAY MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Genovefa
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
3 / 10
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    Rachel Wall          2    57.0    1    0.00     1.5   -     67           6     +6
2    Rendevous In Rio     2    60.0    2    6.75     1.5   -     73           73    +73
3    Fire On Fire         2    57.0    3    8.25     1.5   -     67           67    +67
4    Jilted               2    60.0    4    12.50    1.5   70    73           73    +3
5    Genovefa             3    60.0    5    13.10    2.5   71    71           71    +0
6    Erik's Girl          2    57.0    6    16.20    1.5   -     67           67    +67
7    Milo's Millionaire   3    60.0    7    27.50    2.5   70    71           71    +1
8    Panning Silver       3    60.0    8    34.25    2.5   72    71           71    -1
99   Chilli Marmalade     5    60.0    99   0.00     0.0   -     76           76    +0
99   Eight Hats           2    57.0    99   0.00     1.5   -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rachel Wall - 105 6 +99 1.5 -
2 Rendevous In Rio - 71 73 -2 1.5 -
3 Fire On Fire - 72 67 +5 1.5 -
4 Jilted 70 65 73 -8 1.5 -
5 Genovefa Line 71 72 71 +1 2.5
6 Erik's Girl - 67 67 ✓ Match 1.5 -
7 Milo's Millionaire 70 66 71 -5 2.5 -
8 Panning Silver 72 68 71 -3 2.5 -
99 Chilli Marmalade - 48 76 -28 0.0 -
99 Eight Hats - 64 67 -3 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