Official NHA Assessment

Race 3: TAB 4RACING APP MR 66 APPRENTICE HANDICAP (Open)

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Line Horse
Crepuscolo
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
5 / 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    Sky Pillar Rock      3    59.0    1    0.00     7.0   73    59           73    +0
2    Crepuscolo           4    50.5    2    1.75     3.5   52    52           52    +0
3    Fushimi Inari        2    53.0    3    7.25     0.0   60    61           61    +1
4    Commander Of All     2    53.5    4    8.50     0.0   58    62           62    +4
5    Hopscotch            2    56.5    5    9.10     0.0   78    68           68    -10
6    Gold De Grace        4    53.0    6    9.30     3.5   52    54           54    +2
7    Viva De Janeiro      5    49.0    7    11.80    0.0   52    53           53    +1
8    Bob Lee Swagger      4    54.5    8    13.20    3.5   55    57           57    +2
9    Flag Bearer          3    55.0    9    15.30    7.0   64    51           54    -10
99   Circle Of Grace      4    50.0    99   0.00     3.5   -     48           48    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sky Pillar Rock 73 81 73 +8 7.0 -
2 Crepuscolo Line 52 58 52 +6 3.5
3 Fushimi Inari 60 53 61 -8 0.0 -
4 Commander Of All 58 56 62 -6 0.0 -
5 Hopscotch 78 66 68 -2 0.0 -
6 Gold De Grace 52 51 54 -3 3.5 -
7 Viva De Janeiro 52 50 53 -3 0.0 -
8 Bob Lee Swagger 55 53 57 -4 3.5 -
9 Flag Bearer 64 60 54 +6 7.0 -
99 Circle Of Grace - 51 48 +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