Official NHA Assessment

Race 8: FOLLOW CAPE RACING ON SOCIAL MEDIA CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 78)

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Line Horse
Princess Izzy
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
8 / 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    Callmegetrix         4    56.5    1    0.00     3.0   83    74           74    -9
2    Fatal Gem            4    60.5    2    0.20     3.0   91    82           82    -9
3    Rainbow Lorikeet     2    57.0    3    0.25     0.0   84    81           81    -3
4    Princess Izzy        2    59.5    4    2.00     0.0   89    89           89    +0
5    Cattaleya            2    57.0    5    2.40     0.0   72    83           83    +11
6    Typeface             2    60.0    6    3.65     0.0   78    88           88    +10
7    Miss New York        3    55.5    7    5.40     6.0   69    66           66    -3
8    Cloud Chaser         3    59.0    8    5.60     6.0   76    73           73    -3
9    Winter Frolic        2    55.0    9    6.60     0.0   80    77           77    -3
10   Eternal Optimist     2    55.5    10   7.00     0.0   81    78           78    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Callmegetrix 83 113 74 +39 3.0 -
2 Fatal Gem 91 91 82 +9 3.0 -
3 Rainbow Lorikeet 84 115 81 +34 0.0 -
4 Princess Izzy Line 89 104 89 +15 0.0
5 Cattaleya 72 67 83 -16 0.0 -
6 Typeface 78 78 88 -10 0.0 -
7 Miss New York 69 61 66 -5 6.0 -
8 Cloud Chaser 76 68 73 -5 6.0 -
9 Winter Frolic 80 61 77 -16 0.0 -
10 Eternal Optimist 81 62 78 -16 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