Official NHA Assessment

Race 5: TAB 4RACING APP MAIDEN PLATE (For all Maidens)

Back to Race
Line Horse
Emerald City
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
5 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Euphrates            3    60.0    1    0.00     8.0   64    59           59    -5
2    Emerald City         2    57.0    2    0.80     0.0   74    74           74    +0
3    Asiah's Tiara        3    56.5    3    1.50     8.0   63    57           57    -6
4    Silent Future        2    53.5    4    8.75     0.0   67    62           62    -5
5    Cuzzie               3    60.0    5    14.25    8.0   59    59           59    +0
6    Over Sensible        3    53.5    6    15.50    8.0   53    46           46    -7
7    Festival Of Light    3    49.5    7    15.75    8.0   65    38           55    -10
8    Elusive Charm        2    57.0    8    24.50    0.0   69    69           69    +0
9    Future Success       3    56.5    9    24.70    8.0   64    52           54    -10
10   Flying On My Mind    3    57.0    10   25.10    8.0   20    53           53    +33
99   Gift Of Royal        3    60.0    99   0.00     8.0   -     59           59    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Euphrates 64 70 59 +11 8.0 -
2 Emerald City Line 74 71 74 -3 0.0
3 Asiah's Tiara 63 56 57 -1 8.0 -
4 Silent Future 67 64 62 +2 0.0 -
5 Cuzzie 59 54 59 -5 8.0 -
6 Over Sensible 53 51 46 +5 8.0 -
7 Festival Of Light 65 75 55 +20 8.0 -
8 Elusive Charm 69 62 69 -7 0.0 -
9 Future Success 64 62 54 +8 8.0 -
10 Flying On My Mind 20 20 53 -33 8.0 -
99 Gift Of Royal - 58 59 -1 8.0 -
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