Official NHA Assessment

Race 6: TRACK & BALL GAMING FM 64 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Perfect Trust
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
6 / 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    Spring Kiss          3    60.0    1    0.00     4.0   64    56           64    +0
2    Pretty Analia        5    54.5    2    0.40     0.0   61    58           58    -3
3    Perfect Trust        7    56.5    3    1.90     0.0   60    60           60    +0
4    Roy's Rocker         3    54.0    4    2.70     4.0   52    46           46    -6
5    Ideal Gift           2    59.5    5    4.20     0.0   63    64           64    +1
6    Rowins Dream         5    54.5    6    4.40     0.0   53    53           53    +0
7    Mythical Tune        3    53.5    7    6.00     4.0   56    43           46    -10
8    Predator's Feast     2    58.0    8    6.05     0.0   68    60           60    -8
9    Have A Party         3    57.5    9    9.05     4.0   59    51           51    -8
99   Global Secret        3    61.5    99   0.00     4.0   -     59           59    +0
99   Whatsupbuttacup      3    59.5    99   0.00     4.0   -     55           55    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Spring Kiss 64 64 64 ✓ Match 4.0 -
2 Pretty Analia 61 61 58 +3 0.0 -
3 Perfect Trust Line 60 50 60 -10 0.0
4 Roy's Rocker 52 53 46 +7 4.0 -
5 Ideal Gift 63 71 64 +7 0.0 -
6 Rowins Dream 53 48 53 -5 0.0 -
7 Mythical Tune 56 50 46 +4 4.0 -
8 Predator's Feast 68 62 60 +2 0.0 -
9 Have A Party 59 64 51 +13 4.0 -
99 Global Secret - 66 59 +7 4.0 -
99 Whatsupbuttacup - 65 55 +10 4.0 -
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