Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 9 AUGUST CLASSIFIED STAKES (For horses with nett rating of 71 and below)

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Line Horse
Miss Shaivi
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
8 / 11
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    Swiss Walt           4    58.0    1    0.00     12.0  67    70           70    +3
2    Miss Shaivi          4    58.5    2    0.10     12.0  71    71           71    +0
3    Pashtunwali          6    60.0    3    0.35     0.0   70    98           98    +28
4    Coastal Path         5    60.0    4    1.60     0.0   69    98           98    +29
5    Aquila Gold          4    60.0    5    1.70     12.0  68    74           74    +6
6    Cruzador             6    58.0    6    3.45     0.0   67    94           94    +27
7    Justcantgetenough    2    60.0    7    3.70     7.0   70    84           84    +14
8    Magic Prince         2    58.5    8    3.75     7.0   68    81           81    +13
9    Charlie Malone       5    60.0    9    4.25     0.0   68    98           98    +30
10   Mister Whistle       4    52.5    10   7.25     12.0  50    59           59    +9
11   Herecomestherain     4    48.0    11   21.75    12.0  55    50           50    -5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Swiss Walt 67 74 70 +4 12.0 -
2 Miss Shaivi Line 71 68 71 -3 12.0
3 Pashtunwali 70 58 98 -40 0.0 -
4 Coastal Path 69 77 98 -21 0.0 -
5 Aquila Gold 68 56 74 -18 12.0 -
6 Cruzador 67 61 94 -33 0.0 -
7 Justcantgetenough 70 57 84 -27 7.0 -
8 Magic Prince 68 66 81 -15 7.0 -
9 Charlie Malone 68 71 98 -27 0.0 -
10 Mister Whistle 50 52 59 -7 12.0 -
11 Herecomestherain 55 55 50 +5 12.0 -
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