Official NHA Assessment

Race 5: VHM RACING SYNDICATE OPEN MAIDEN (For all Maidens)

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Line Horse
Tunguska
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
6 / 13
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    Show Off             3    60.5    1    0.00     3.5   79    74           74    -5
2    Tunguska             3    59.0    2    0.30     3.5   76    76           76    +0
3    Jet A One            2    55.0    3    0.80     0.0   68    74           74    +6
4    Moment Of Truth      3    57.0    4    4.55     3.5   72    67           67    -5
5    Afrique              3    59.0    5    6.55     3.5   76    71           71    -5
6    Dricus               3    61.0    6    10.30    3.5   -     75           75    +75
7    Typically French     4    53.0    7    12.30    1.5   50    63           63    +13
8    Global Speak         3    56.0    8    12.70    3.5   70    65           65    -5
9    Ariovistus           3    55.5    9    13.10    3.5   69    64           64    -5
10   Hawaii Tractor       3    61.0    10   26.10    3.5   -     75           75    +75
11   Townsman             3    48.0    11   27.35    3.5   62    49           52    -10
12   Monkey Puzzle        4    59.5    12   27.45    1.5   70    76           76    +6
99   Past And Present     3    56.0    99   0.00     3.5   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Show Off 79 77 74 +3 3.5 -
2 Tunguska Line 76 69 76 -7 3.5
3 Jet A One 68 69 74 -5 0.0 -
4 Moment Of Truth 72 64 67 -3 3.5 -
5 Afrique 76 83 71 +12 3.5 -
6 Dricus - 75 75 ✓ Match 3.5 -
7 Typically French 50 52 63 -11 1.5 -
8 Global Speak 70 64 65 -1 3.5 -
9 Ariovistus 69 80 64 +16 3.5 -
10 Hawaii Tractor - 47 75 -28 3.5 -
11 Townsman 62 61 52 +9 3.5 -
12 Monkey Puzzle 70 79 76 +3 1.5 -
99 Past And Present - 68 65 +3 3.5 -
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