Official NHA Assessment

Race 4: FOLLOW IN THE BOX SEAT PODCAST MR 85 HANDICAP (Open)

Back to Race
Line Horse
Run To Denmark
Reference for assessment
Exact Matches
2 / 8
Calculated = Official
Close Matches
4 / 8
Within 2 points
Significant Diffs
3 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Sunday Island (AUS)  3    58.0    1    0.00     2.5   86    71           86    +0
2    Arumugam             6    56.5    2    0.05     0.0   83    73           73    -10
3    Run To Denmark       6    59.5    3    1.55     0.0   84    84           84    +0
4    Rex Union            4    57.5    4    3.15     1.0   80    76           76    -4
5    Earl                 4    55.5    5    3.45     1.0   81    72           72    -9
6    Fight Song           4    61.0    6    10.45    1.0   87    80           80    -7
7    Tonightsfightnight   5    58.5    7    14.05    0.0   82    77           77    -5
99   Motown Magic         3    60.5    99   0.00     2.5   -     76           76    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sunday Island (AUS) 86 86 86 ✓ Match 2.5 -
2 Arumugam 83 74 73 +1 0.0 -
3 Run To Denmark Line 84 84 84 ✓ Match 0.0
4 Rex Union 80 97 76 +21 1.0 -
5 Earl 81 78 72 +6 1.0 -
6 Fight Song 87 94 80 +14 1.0 -
7 Tonightsfightnight 82 80 77 +3 0.0 -
99 Motown Magic - 75 76 -1 2.5 -
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