Official NHA Assessment

Race 2: RACEHORSE OWNERS ASSOCIATION OPEN MAIDEN (F & M) (For Maidens F&M. R15 000 Win bonus ROA Members)

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Line Horse
My True Love
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
4 / 9
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    Sea Of Tears         2    58.5    1    0.00     0.0   64    65           65    +1
2    My True Love         4    55.0    2    1.25     2.0   58    58           58    +0
3    Winning Grace        2    56.0    3    2.00     0.0   64    63           63    -1
4    Hat's Miracle        2    56.5    4    2.50     0.0   62    63           63    +1
5    Nairobi              3    57.0    5    4.75     3.0   55    56           56    +1
6    Countessofthestars   2    52.0    6    11.75    0.0   43    52           52    +9
7    Azimuth              3    56.5    7    12.25    3.0   62    55           55    -7
8    Keenonkelly          2    58.0    8    12.35    0.0   58    64           64    +6
9    Kamaria              3    61.0    9    23.60    3.0   -     64           64    +64
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sea Of Tears 64 60 65 -5 0.0 -
2 My True Love Line 58 50 58 -8 2.0
3 Winning Grace 64 62 63 -1 0.0 -
4 Hat's Miracle 62 59 63 -4 0.0 -
5 Nairobi 55 53 56 -3 3.0 -
6 Countessofthestars 43 40 52 -12 0.0 -
7 Azimuth 62 53 55 -2 3.0 -
8 Keenonkelly 58 53 64 -11 0.0 -
9 Kamaria - 53 64 -11 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