Official NHA Assessment

Race 7: COMPUTAFORM ONLINE MR 66 HANDICAP (Open)

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Line Horse
Eagle Alley
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
4 / 12
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    Maboneng             3    54.0    1    0.00     3.0   53    51           53    +0
2    Fasinada             4    54.5    2    0.10     1.5   54    55           55    +1
3    Eagle Alley          4    55.0    3    0.35     1.5   61    61           61    +0
4    Twosidestoastory     3    58.0    4    0.60     3.0   62    64           64    +2
5    Spring Will Come     3    57.0    5    2.00     3.0   65    60           60    -5
6    Oyster King          5    60.0    6    2.40     0.0   66    71           71    +5
7    Barmaid              2    56.5    7    2.70     0.0   65    64           64    -1
8    Wind Sock            3    59.5    8    3.10     3.0   65    64           64    -1
9    Big City Girl        4    56.5    9    4.90     1.5   62    59           59    -3
10   Speechmaker          5    57.0    10   26.15    0.0   60    63           63    +3
11   Gregor Macgregor     4    56.5    11   99.99    1.5   59    59           59    +0
99   Timeforthat          4    57.5    99   0.00     1.5   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Maboneng 53 67 53 +14 3.0 -
2 Fasinada 54 52 55 -3 1.5 -
3 Eagle Alley Line 61 58 61 -3 1.5
4 Twosidestoastory 62 62 64 -2 3.0 -
5 Spring Will Come 65 72 60 +12 3.0 -
6 Oyster King 66 50 71 -21 0.0 -
7 Barmaid 65 55 64 -9 0.0 -
8 Wind Sock 65 68 64 +4 3.0 -
9 Big City Girl 62 59 59 ✓ Match 1.5 -
10 Speechmaker 60 61 63 -2 0.0 -
11 Gregor Macgregor 59 63 59 +4 1.5 -
99 Timeforthat - 60 61 -1 1.5 -
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