Official NHA Assessment

Race 5: www.galloptv.co.za MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Terminal Velocity
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
1 / 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    Sonata Samaritan     3    60.0    1    0.00     6.0   77    63           63    -14
2    Terminal Velocity    2    60.0    2    1.20     0.0   79    79           79    +0
3    Royal Mermaid        3    60.0    3    3.00     6.0   -     65           65    +65
4    Nautical Landing     3    60.0    4    3.40     6.0   77    64           67    -10
5    Greenlight Queen     3    60.0    5    3.80     6.0   -     64           64    +64
6    Glorious Butterfly   3    60.0    6    4.30     6.0   -     63           63    +63
7    Twilight Bay         2    60.0    7    7.90     0.0   79    75           75    -4
8    Sanbeenee            2    60.0    8    8.15     0.0   69    75           75    +6
9    Matt Attack          3    60.0    9    21.35    6.0   -     63           63    +63
10   Fly To Me            3    58.5    10   99.99    6.0   -     60           60    +60
99   Guard My Fate        3    60.0    99   0.00     6.0   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sonata Samaritan 77 74 63 +11 6.0 -
2 Terminal Velocity Line 79 68 79 -11 0.0
3 Royal Mermaid - 70 65 +5 6.0 -
4 Nautical Landing 77 63 67 -4 6.0 -
5 Greenlight Queen - 64 64 ✓ Match 6.0 -
6 Glorious Butterfly - 66 63 +3 6.0 -
7 Twilight Bay 79 72 75 -3 0.0 -
8 Sanbeenee 69 59 75 -16 0.0 -
9 Matt Attack - 38 63 -25 6.0 -
10 Fly To Me - 47 60 -13 6.0 -
99 Guard My Fate - 48 63 -15 6.0 -
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