Official NHA Assessment

Race 4: 4RACING.TV OPEN MR 74 HANDICAP (Open)

Back to Race
Line Horse
Swiss Walt
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 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    Sound Of The Sea     3    59.0    1    0.00     2.5   75    67           75    +0
2    Swiss Walt           4    59.0    2    2.25     0.0   72    72           72    +0
3    Travel Master        4    60.5    3    3.75     0.0   75    75           75    +0
4    Ravilious            3    54.0    4    3.85     2.5   65    57           57    -8
5    Samthewiseman        5    52.5    5    5.35     0.0   59    59           59    +0
6    Original Copy        3    59.5    6    7.60     2.5   76    68           68    -8
7    Miss Shaivi          4    59.0    7    9.10     0.0   72    72           72    +0
8    World Pharoah        3    61.0    8    10.85    2.5   79    71           71    -8
9    Resurgence           4    54.0    9    13.10    0.0   61    62           62    +1
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sound Of The Sea 75 80 75 +5 2.5 -
2 Swiss Walt Line 72 74 72 +2 0.0
3 Travel Master 75 65 75 -10 0.0 -
4 Ravilious 65 81 57 +24 2.5 -
5 Samthewiseman 59 52 59 -7 0.0 -
6 Original Copy 76 74 68 +6 2.5 -
7 Miss Shaivi 72 68 72 -4 0.0 -
8 World Pharoah 79 69 71 -2 2.5 -
9 Resurgence 61 57 62 -5 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