Official NHA Assessment

Race 4: TAB 4RACING APP FM 63 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Isn't It Bliss
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
7 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Bouquet              2    56.5    1    0.00     3.5   63    61           63    +0
2    Miss Rose            3    57.0    2    0.75     5.0   57    59           59    +2
3    Isn't It Bliss       4    55.0    3    1.75     6.0   53    53           53    +0
4    Quick Count          3    60.0    4    2.25     5.0   63    65           65    +2
5    Shesakinda Magic     3    57.5    5    2.50     5.0   58    60           60    +2
6    Mon Tresor           3    59.0    6    2.60     5.0   61    63           63    +2
7    South Wester (IRE)   4    60.0    7    2.65     6.0   63    63           63    +0
8    Emily's Spirit       2    60.0    8    3.90     3.5   70    68           68    -2
9    Echoes Of Winter     2    59.5    9    6.15     3.5   69    67           67    -2
10   Baby Dont Hurt Me    3    57.5    10   9.65     5.0   58    60           60    +2
99   Babyitscoldoutside   3    60.0    99   0.00     5.0   -     65           65    +0
99   Alloway Grove        4    53.5    99   0.00     6.0   -     50           50    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bouquet 63 63 63 ✓ Match 3.5 -
2 Miss Rose 57 57 59 -2 5.0 -
3 Isn't It Bliss Line 53 51 53 -2 6.0
4 Quick Count 63 69 65 +4 5.0 -
5 Shesakinda Magic 58 58 60 -2 5.0 -
6 Mon Tresor 61 71 63 +8 5.0 -
7 South Wester (IRE) 63 56 63 -7 6.0 -
8 Emily's Spirit 70 53 68 -15 3.5 -
9 Echoes Of Winter 69 54 67 -13 3.5 -
10 Baby Dont Hurt Me 58 52 60 -8 5.0 -
99 Babyitscoldoutside - 56 65 -9 5.0 -
99 Alloway Grove - 44 50 -6 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