Official NHA Assessment

Race 2: OPEN A tabGOLD ACCOUNT - 031 314 1874 MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Royal Oasis
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 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    Palm Breeze          3    58.0    1    0.00     10.5  -     58           6     +6
2    Asiye Phambili       3    58.0    2    0.75     10.5  -     58           58    +58
3    Triptoroyalty        2    56.5    3    5.15     7.0   74    62           64    -10
4    Royal Oasis          3    60.0    4    5.65     10.5  62    62           62    +0
5    Adelante             3    60.0    5    6.15     10.5  -     62           62    +62
6    Fine Design          3    60.0    6    10.55    10.5  -     62           62    +62
7    Roy's Caviar         3    58.0    7    13.35    10.5  -     58           58    +58
8    Lady Jane Lover      2    55.5    8    18.05    7.0   50    60           60    +10
9    I'm Devine           4    60.0    9    18.30    12.0  -     59           59    +59
10   Cinnamon Blush       3    60.0    10   99.99    10.5  65    62           62    -3
99   Adrenaline Rush      2    58.0    99   0.00     7.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Palm Breeze - 66 6 +60 10.5 -
2 Asiye Phambili - 119 58 +61 10.5 -
3 Triptoroyalty 74 56 64 -8 7.0 -
4 Royal Oasis Line 62 61 62 -1 10.5
5 Adelante - 50 62 -12 10.5 -
6 Fine Design - - 62 -62 10.5 -
7 Roy's Caviar - 49 58 -9 10.5 -
8 Lady Jane Lover 50 43 60 -17 7.0 -
9 I'm Devine - 60 59 +1 12.0 -
10 Cinnamon Blush 65 66 62 +4 10.5 -
99 Adrenaline Rush - 45 65 -20 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