Official NHA Assessment

Race 7: TRACK AND BALL OAKS (Grade 2) (For Fillies and Mares at Weight For Age + Penalties)

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Line Horse
None Other
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
7 / 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    None Other           5    58.0    1    0.00     0.0   110   110          110   +0
2    Dawnofanewday        3    60.0    2    0.80     3.0   101   113          113   +12
3    Light Of The Moon    3    60.0    3    3.10     3.0   110   111          111   +1
4    Hold My Hand         2    57.0    4    3.15     0.0   115   111          111   -4
5    Rockie Reef          3    60.0    5    3.45     3.0   80    110          110   +30
6    Electric Surge       5    60.0    6    4.15     0.0   77    116          116   +39
7    Capetown Beauty      3    60.0    7    4.25     3.0   83    110          110   +27
8    Bella Siccome        3    60.0    8    4.40     3.0   93    109          109   +16
9    Silverlinks          2    57.0    9    5.00     0.0   97    108          108   +11
10   Mel's Princess       3    60.0    10   10.80    3.0   79    108          108   +29
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 None Other Line 110 115 110 +5 0.0
2 Dawnofanewday 101 107 113 -6 3.0 -
3 Light Of The Moon 110 107 111 -4 3.0 -
4 Hold My Hand 115 112 111 +1 0.0 -
5 Rockie Reef 80 97 110 -13 3.0 -
6 Electric Surge 77 83 116 -33 0.0 -
7 Capetown Beauty 83 76 110 -34 3.0 -
8 Bella Siccome 93 93 109 -16 3.0 -
9 Silverlinks 97 94 108 -14 0.0 -
10 Mel's Princess 79 77 108 -31 3.0 -
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