Official NHA Assessment

Race 4: PLAY SOCCER 6, 10 AND 13 FM 87 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Virgin River
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
5 / 11
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    The Navy Lark        4    54.0    1    0.00     5.0   75    65           75    +0
2    Virgin River         5    55.5    2    0.10     0.0   78    78           78    +0
3    Mist In Scotland     2    57.0    3    0.60     3.0   81    75           75    -6
4    Kia Kaha             3    56.0    4    0.65     4.5   85    70           75    -10
5    Flight Of A Condor   3    54.0    5    3.65     4.5   81    66           71    -10
6    Whirlybird           2    57.5    6    3.90     3.0   82    76           76    -6
7    Phantom Express      4    55.0    7    6.15     5.0   76    67           67    -9
8    Micke's Bomb         4    53.5    8    7.55     5.0   74    64           64    -10
9    Virginia Beach       2    60.0    9    10.95    3.0   87    81           81    -6
99   Global Thunder       4    56.0    99   0.00     5.0   -     69           69    +0
99   Just The Two Of Us   4    60.0    99   0.00     5.0   -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Navy Lark 75 74 75 -1 5.0 -
2 Virgin River Line 78 95 78 +17 0.0
3 Mist In Scotland 81 77 75 +2 3.0 -
4 Kia Kaha 85 71 75 -4 4.5 -
5 Flight Of A Condor 81 85 71 +14 4.5 -
6 Whirlybird 82 73 76 -3 3.0 -
7 Phantom Express 76 76 67 +9 5.0 -
8 Micke's Bomb 74 60 64 -4 5.0 -
9 Virginia Beach 87 82 81 +1 3.0 -
99 Global Thunder - 83 69 +14 5.0 -
99 Just The Two Of Us - 90 77 +13 5.0 -
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