Official NHA Assessment

Race 4: WOODRUFF RACING SYNDICATE OPEN MAIDEN (For all Maidens)

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Line Horse
Real Stunner
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
5 / 11
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    Ariovistus           3    58.5    1    0.00     2.0   67    64           64    -3
2    Real Stunner         3    61.0    2    3.25     2.0   72    72           72    +0
3    Beautiful Side       3    57.0    3    3.75     2.0   69    63           63    -6
4    Moment Of Truth      3    59.5    4    4.05     2.0   69    68           68    -1
5    Not Wanted           3    58.5    5    6.05     2.0   -     64           64    +64
6    Copper Plate         3    53.5    6    8.30     2.0   57    54           54    -3
7    Past And Present     3    60.0    7    8.70     2.0   70    67           67    -3
8    Greenlight Jet       3    52.0    8    9.45     2.0   42    51           51    +9
9    Silver Opposition    3    48.0    9    15.70    2.0   52    43           43    -9
10   Monticello           3    56.0    10   23.95    2.0   62    59           59    -3
11   Royal Dawn           3    56.0    11   99.99    2.0   62    59           59    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ariovistus 67 80 64 +16 2.0 -
2 Real Stunner Line 72 74 72 +2 2.0
3 Beautiful Side 69 63 63 ✓ Match 2.0 -
4 Moment Of Truth 69 64 68 -4 2.0 -
5 Not Wanted - 73 64 +9 2.0 -
6 Copper Plate 57 75 54 +21 2.0 -
7 Past And Present 70 68 67 +1 2.0 -
8 Greenlight Jet 42 44 51 -7 2.0 -
9 Silver Opposition 52 49 43 +6 2.0 -
10 Monticello 62 59 59 ✓ Match 2.0 -
11 Royal Dawn 62 55 59 -4 2.0 -
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