Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 30 JANUARY FM 77 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
The Navy Lark
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
4 / 14
Within 2 points
Significant Diffs
7 / 14
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    Phantom Express      4    57.5    1    0.00     6.0   72    72           72    +0
2    Arilena              6    53.5    2    0.40     0.0   72    76           76    +4
3    Enchanting Lady      2    57.0    3    1.30     3.5   71    76           76    +5
4    The Navy Lark        4    60.0    4    1.70     6.0   77    77           77    +0
5    Quasikat             3    58.0    5    1.90     5.0   80    75           75    -5
6    Glawari              2    55.0    6    2.40     3.5   67    72           72    +5
7    Waitforgreenlight    2    56.5    7    4.10     3.5   70    75           75    +5
8    Royal Horizon        3    54.5    8    4.30     5.0   66    68           68    +2
9    Si Veloce            4    48.0    9    6.00     6.0   53    53           53    +0
10   Ilha Da Orange       4    58.0    10   6.20     6.0   73    73           73    +0
11   Flight Of A Condor   3    58.5    11   7.10     5.0   81    76           76    -5
12   Together Again       5    52.0    12   7.35     0.0   59    73           73    +14
13   Faithful Neo         3    60.0    13   9.25     5.0   84    79           79    -5
99   Smelting             7    52.0    99   0.00     0.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Phantom Express 72 76 72 +4 6.0 -
2 Arilena 72 75 76 -1 0.0 -
3 Enchanting Lady 71 67 76 -9 3.5 -
4 The Navy Lark Line 77 74 77 -3 6.0
5 Quasikat 80 83 75 +8 5.0 -
6 Glawari 67 65 72 -7 3.5 -
7 Waitforgreenlight 70 67 75 -8 3.5 -
8 Royal Horizon 66 68 68 ✓ Match 5.0 -
9 Si Veloce 53 50 53 -3 6.0 -
10 Ilha Da Orange 73 75 73 +2 6.0 -
11 Flight Of A Condor 81 85 76 +9 5.0 -
12 Together Again 59 55 73 -18 0.0 -
13 Faithful Neo 84 80 79 +1 5.0 -
99 Smelting - 52 73 -21 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