Official NHA Assessment

Race 3: RACING TODAY OPEN MAIDEN (F & M) (For Maiden Fillies and Mares)

Back to Race
Line Horse
Amanatto
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
4 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Pomerol              3    56.0    1    0.00     6.0   73    61           61    -12
2    Amanatto             3    55.5    2    0.25     6.0   60    60           60    +0
3    Night In Japan       3    51.5    3    2.50     6.0   57    54           54    -3
4    Ripsnorter           4    55.0    4    4.75     3.5   59    64           64    +5
5    Izanami              3    60.0    5    5.25     6.0   69    69           69    +0
6    Salagadoola          2    54.0    6    8.50     0.0   69    69           69    +0
7    Explosive Gift       3    56.0    7    10.75    6.0   61    61           61    +0
8    Mediterraneanflame   3    52.5    8    14.25    6.0   60    54           54    -6
9    Golden Alexia        3    58.5    9    19.00    6.0   66    66           66    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pomerol 73 78 61 +17 6.0 -
2 Amanatto Line 60 64 60 +4 6.0
3 Night In Japan 57 49 54 -5 6.0 -
4 Ripsnorter 59 57 64 -7 3.5 -
5 Izanami 69 72 69 +3 6.0 -
6 Salagadoola 69 66 69 -3 0.0 -
7 Explosive Gift 61 56 61 -5 6.0 -
8 Mediterraneanflame 60 60 54 +6 6.0 -
9 Golden Alexia 66 56 66 -10 6.0 -
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