Official NHA Assessment

Race 7: 4RACING.TV MR 68 HANDICAP (Open)

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Line Horse
Tinder Dry
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
5 / 9
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    River Romeo          2    61.5    1    0.00     0.0   76    76           76    +0
2    Over Two You         3    61.0    2    4.25     2.5   70    72           72    +2
3    Tinder Dry           3    60.5    3    6.00     2.5   69    69           69    +0
4    Luthuli              5    59.5    4    8.75     0.0   72    72           72    +0
5    Oyster King          5    58.5    5    10.25    0.0   65    70           70    +5
6    English Primrose     3    55.5    6    10.30    2.5   58    59           59    +1
7    Treaty               2    52.5    7    11.00    0.0   58    58           58    +0
99   The Inkosana         3    53.5    99   0.00     2.5   -     55           55    +0
99   Nuclear Force        5    59.0    99   0.00     0.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 River Romeo 76 94 76 +18 0.0 -
2 Over Two You 70 74 72 +2 2.5 -
3 Tinder Dry Line 69 66 69 -3 2.5
4 Luthuli 72 74 72 +2 0.0 -
5 Oyster King 65 50 70 -20 0.0 -
6 English Primrose 58 58 59 -1 2.5 -
7 Treaty 58 48 58 -10 0.0 -
99 The Inkosana - 67 55 +12 2.5 -
99 Nuclear Force - 61 71 -10 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