Official NHA Assessment

Race 5: NEXT FESTIVAL MEETING 03 DECEMBER MAIDEN SPECIAL WEIGHTS (F & M) (For all Maiden Fillies & Mares)

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Line Horse
Short Sharp Shock
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 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    Royal Invitation     5    59.0    1    0.00     0.0   75    72           70    -5
2    Destined To Dance    3    54.0    2    1.50     7.0   51    51           51    +0
3    Short Sharp Shock    3    54.0    3    1.60     7.0   51    51           51    +0
4    Medlers Tart         2    58.0    4    2.85     0.0   73    72           72    -1
5    Chelsea Garden       2    56.5    5    3.05     0.0   70    69           69    -1
6    By Midnight          3    52.0    6    3.25     7.0   55    46           46    -9
7    Catchusifyoucan      3    56.0    7    3.30     7.0   69    53           59    -10
8    Daisy Duke           2    59.5    8    6.80     0.0   76    73           73    -3
9    Crimson Wings        3    60.0    9    99.99    7.0   -     60           60    +60
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Royal Invitation 75 99 70 +29 0.0 -
2 Destined To Dance 51 48 51 -3 7.0 -
3 Short Sharp Shock Line 51 62 51 +11 7.0
4 Medlers Tart 73 92 72 +20 0.0 -
5 Chelsea Garden 70 70 69 +1 0.0 -
6 By Midnight 55 55 46 +9 7.0 -
7 Catchusifyoucan 69 66 59 +7 7.0 -
8 Daisy Duke 76 47 73 -26 0.0 -
9 Crimson Wings - 49 60 -11 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