Official NHA Assessment

Race 5: THE ROA WISHES THE LADIES HAPPY WOMENS DAY MR 66 HANDICAP (Open)

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Line Horse
Flag Bearer
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 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    Storm Ahead          4    60.0    1    0.00     7.0   66    80           66    +0
2    Flag Bearer          3    55.5    2    4.60     10.0  65    65           65    +0
3    Gamer                4    59.0    3    5.60     7.0   64    78           78    +14
4    Instant Attraction   3    58.5    4    6.70     10.0  68    71           71    +3
5    Red Sparrow          3    55.5    5    6.95     10.0  59    65           65    +6
6    Pretty In Pearls     3    54.5    6    10.25    10.0  60    63           63    +3
7    Silky Jet            4    57.5    7    10.50    7.0   61    75           75    +14
99   Bob Lee Swagger      4    55.5    99   0.00     7.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Storm Ahead 66 80 66 +14 7.0 -
2 Flag Bearer Line 65 60 65 -5 10.0
3 Gamer 64 65 78 -13 7.0 -
4 Instant Attraction 68 60 71 -11 10.0 -
5 Red Sparrow 59 55 65 -10 10.0 -
6 Pretty In Pearls 60 56 63 -7 10.0 -
7 Silky Jet 61 61 75 -14 7.0 -
99 Bob Lee Swagger - 53 71 -18 7.0 -
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