Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION FM 78 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Field Of Vision
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 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    Song                 4    54.0    1    0.00     2.0   66    73           66    +0
2    Field Of Vision      3    52.5    2    0.50     4.5   72    72           72    +0
3    Eye Catching         4    52.0    3    0.80     2.0   56    75           75    +19
4    Ntinga               3    54.5    4    1.10     4.5   75    75           75    +0
5    Golden Dah           4    59.5    5    1.85     2.0   77    89           89    +12
6    Apache Dream         6    55.5    6    2.15     0.0   69    85           85    +16
7    Rewrite The Stars    5    58.0    7    4.15     0.0   74    87           87    +13
8    Sweet Repeat         3    55.0    8    5.65     4.5   77    70           70    -7
9    Fynbos               5    60.0    9    6.65     0.0   78    89           89    +11
10   Isle Of The Winds    3    52.0    10   10.15    4.5   71    64           64    -7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Song 66 68 66 +2 2.0 -
2 Field Of Vision Line 72 55 72 -17 4.5
3 Eye Catching 56 48 75 -27 2.0 -
4 Ntinga 75 74 75 -1 4.5 -
5 Golden Dah 77 84 89 -5 2.0 -
6 Apache Dream 69 68 85 -17 0.0 -
7 Rewrite The Stars 74 59 87 -28 0.0 -
8 Sweet Repeat 77 69 70 -1 4.5 -
9 Fynbos 78 76 89 -13 0.0 -
10 Isle Of The Winds 71 59 64 -5 4.5 -
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