Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION MR 80 HANDICAP (Open)

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Line Horse
Tinder Dry
Reference for assessment
Exact Matches
0 / 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    Arlington Action     6    60.0    1    0.00     0.0   81    88           81    +0
2    Tinder Dry           3    55.0    2    0.50     7.0   71    71           71    +0
3    Chasing Mavericks    4    52.5    3    0.70     3.5   65    73           73    +8
4    Earl                 4    60.5    4    2.20     3.5   81    87           87    +6
5    Bally Magic          6    54.5    5    2.95     0.0   69    80           80    +11
6    Little Prince        3    57.5    6    3.95     7.0   76    71           71    -5
7    Vengeance Forever    3    53.0    7    9.45     7.0   67    60           60    -7
8    Cerulean Dancer      2    52.0    8    18.95    0.0   74    72           72    -2
99   Master Of Coin       3    55.5    99   0.00     7.0   -     65           65    +0
99   Future Pearl         2    53.5    99   0.00     0.0   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Arlington Action 81 73 81 -8 0.0 -
2 Tinder Dry Line 71 66 71 -5 7.0
3 Chasing Mavericks 65 65 73 -8 3.5 -
4 Earl 81 78 87 -9 3.5 -
5 Bally Magic 69 60 80 -20 0.0 -
6 Little Prince 76 73 71 +2 7.0 -
7 Vengeance Forever 67 51 60 -9 7.0 -
8 Cerulean Dancer 74 71 72 -1 0.0 -
99 Master Of Coin - 72 65 +7 7.0 -
99 Future Pearl - 114 75 +39 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