Official NHA Assessment

Race 1: WELCOME TO HOLLYWOODBETS GREYVILLE OPEN MAIDEN (F & M) (For all Maiden Fillies & Mares)

Back to Race
Line Horse
Stampede Ahead
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
2 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Nebulous             2    58.5    1    0.00     3.5   72    72           72    +0
2    Lou Lou              2    58.0    2    2.90     3.5   74    71           71    -3
3    Roy's Blossom        4    54.5    3    3.80     6.0   56    59           59    +3
4    Cartel Queen         2    57.5    4    5.50     3.5   70    70           70    +0
5    Stampede Ahead       2    58.5    5    6.70     3.5   72    72           72    +0
6    Jenny Darling        2    54.0    6    7.30     3.5   68    63           63    -5
7    Olive Grove          2    58.5    7    8.40     3.5   72    72           72    +0
8    Winter Miracle       3    58.0    8    10.50    5.0   64    68           68    +4
9    Predator's Suprise   3    50.0    9    13.50    5.0   56    52           52    -4
10   Catrien              3    55.0    10   14.80    5.0   65    62           62    -3
99   Snow Queen           2    61.5    99   0.00     3.5   -     78           78    +0
99   Rosa Osiria          3    52.0    99   0.00     5.0   -     56           56    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Nebulous 72 77 72 +5 3.5 -
2 Lou Lou 74 73 71 +2 3.5 -
3 Roy's Blossom 56 54 59 -5 6.0 -
4 Cartel Queen 70 66 70 -4 3.5 -
5 Stampede Ahead Line 72 76 72 +4 3.5
6 Jenny Darling 68 62 63 -1 3.5 -
7 Olive Grove 72 68 72 -4 3.5 -
8 Winter Miracle 64 60 68 -8 5.0 -
9 Predator's Suprise 56 56 52 +4 5.0 -
10 Catrien 65 60 62 -2 5.0 -
99 Snow Queen - 68 78 -10 3.5 -
99 Rosa Osiria - 57 56 +1 5.0 -
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