Official NHA Assessment

Race 7: 4RACING.TV MR 80 HANDICAP (Open)

Back to Race
Line Horse
Silvano's Song
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
4 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Total Surrender      5    59.5    1    0.00     0.0   81    100          81    +0
2    Youcanthurrylove     5    58.0    2    0.70     0.0   76    104          104   +28
3    Silvano's Song       3    53.0    3    1.20     10.0  73    73           73    +0
4    Over Two You         3    57.0    4    3.75     10.0  74    77           77    +3
5    Little Prince        3    56.0    5    4.75     10.0  72    73           73    +1
6    Pewter Sky           3    57.5    6    6.25     10.0  75    76           76    +1
7    Greenlight Magic     2    60.0    7    34.00    0.0   82    101          101   +19
99   Captain Chorus       5    57.0    99   0.00     0.0   -     95           95    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Total Surrender 81 74 81 -7 0.0 -
2 Youcanthurrylove 76 86 104 -18 0.0 -
3 Silvano's Song Line 73 74 73 +1 10.0
4 Over Two You 74 74 77 -3 10.0 -
5 Little Prince 72 73 73 ✓ Match 10.0 -
6 Pewter Sky 75 71 76 -5 10.0 -
7 Greenlight Magic 82 74 101 -27 0.0 -
99 Captain Chorus - 67 95 -28 0.0 -
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