Official NHA Assessment

Race 6: 4RACING.TV MR 82 HANDICAP (Open)

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Line Horse
Donny Tee
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
7 / 10
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    Whatever Next        6    59.5    1    0.00     0.0   81    100          81    +0
2    Life On Mars         4    58.5    2    2.25     6.0   84    86           86    +2
3    Donny Tee            4    57.0    3    3.75     6.0   83    83           83    +0
4    Grey Smoke           2    54.0    4    6.25     3.5   77    82           82    +5
5    Thunder Master       6    60.0    5    7.50     0.0   82    101          101   +19
6    Notorix              6    57.0    6    10.75    0.0   76    95           95    +19
7    Tuscan Gold          2    59.0    7    12.50    3.5   80    92           92    +12
8    Pashtunwali          6    56.0    8    12.75    0.0   74    93           93    +19
9    Big Fella            2    55.5    9    17.00    3.5   80    85           85    +5
99   Timbavati River      3    54.0    99   0.00     5.0   -     79           79    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Whatever Next 81 73 81 -8 0.0 -
2 Life On Mars 84 87 86 +1 6.0 -
3 Donny Tee Line 83 68 83 -15 6.0
4 Grey Smoke 77 77 82 -5 3.5 -
5 Thunder Master 82 80 101 -21 0.0 -
6 Notorix 76 68 95 -27 0.0 -
7 Tuscan Gold 80 84 92 -8 3.5 -
8 Pashtunwali 74 58 93 -35 0.0 -
9 Big Fella 80 70 85 -15 3.5 -
99 Timbavati River - 79 79 ✓ Match 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