Official NHA Assessment

Race 4: PLAY SOCCER 6, 10 AND 13 MR 75 HANDICAP (Open)

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Line Horse
Arlington Action
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Chabal               3    57.0    1    0.00     8.5   71    48           71    +0
2    Cartagena            4    56.0    2    0.25     5.0   67    53           57    -10
3    Arlington Action     6    58.0    3    1.75     0.0   71    71           71    +0
4    Banha Bridge         5    60.0    4    2.85     0.0   75    74           74    -1
5    Sky Pillar Rock      3    59.0    5    3.05     8.5   75    55           65    -10
6    Volte Face           3    56.5    6    3.75     8.5   68    49           58    -10
7    Trident King         3    57.0    7    4.05     8.5   69    50           59    -10
8    Itsnowornever        5    53.5    8    7.55     0.0   67    58           58    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chabal 71 73 71 +2 8.5 -
2 Cartagena 67 77 57 +20 5.0 -
3 Arlington Action Line 71 73 71 +2 0.0
4 Banha Bridge 75 70 74 -4 0.0 -
5 Sky Pillar Rock 75 81 65 +16 8.5 -
6 Volte Face 68 66 58 +8 8.5 -
7 Trident King 69 65 59 +6 8.5 -
8 Itsnowornever 67 64 58 +6 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