Official NHA Assessment

Race 2: #YOUCANBETONUS! MAIDEN PLATE (For all Maidens)

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Line Horse
Rockie Blue
Reference for assessment
Exact Matches
0 / 17
Calculated = Official
Close Matches
1 / 17
Within 2 points
Significant Diffs
13 / 17
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    Overture             3    60.0    1    0.00     5.0   -     5            5     +5
2    Rockie Blue          3    57.5    2    0.75     5.0   -     -            -     +0
3    Here Comes Johnny    3    56.0    3    4.00     5.0   -     -3           -     +0
4    Atlantic Pearl       2    57.5    4    5.25     3.5   68    3            58    -10
5    Susurrando           3    60.0    5    6.00     5.0   66    5            56    -10
6    Sun Eclipse          3    58.0    6    6.25     5.0   -     1            1     +1
7    Magnus The Good      2    60.0    7    6.35     3.5   75    8            65    -10
8    River Fern           2    56.0    8    8.85     3.5   75    -            68    -7
9    Bomber Stream        4    57.5    9    8.95     6.0   53    -2           43    -10
10   Bright Eruption      2    60.0    10   9.00     3.5   67    8            57    -10
11   Star Trooper         3    60.0    11   12.25    5.0   56    5            46    -10
12   Focal Point          2    57.5    12   12.35    3.5   71    3            61    -10
13   Global Chief         3    60.0    13   13.85    5.0   54    5            44    -10
14   Looking Good         2    57.5    14   20.85    3.5   60    3            50    -10
15   Down Town Cody       2    60.0    15   33.60    3.5   70    8            60    -10
99   Bourne Supremacy     2    60.0    99   0.00     3.5   -     8            8     +0
99   Norse Warrior        2    60.0    99   0.00     3.5   -     8            8     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Overture - 81 5 +76 5.0 -
2 Rockie Blue Line - 71 - +71 5.0
3 Here Comes Johnny - 71 - +71 5.0 -
4 Atlantic Pearl 68 72 58 +14 3.5 -
5 Susurrando 66 74 56 +18 5.0 -
6 Sun Eclipse - - 1 -1 5.0 -
7 Magnus The Good 75 74 65 +9 3.5 -
8 River Fern 75 73 68 +5 3.5 -
9 Bomber Stream 53 52 43 +9 6.0 -
10 Bright Eruption 67 67 57 +10 3.5 -
11 Star Trooper 56 51 46 +5 5.0 -
12 Focal Point 71 64 61 +3 3.5 -
13 Global Chief 54 51 44 +7 5.0 -
14 Looking Good 60 64 50 +14 3.5 -
15 Down Town Cody 70 70 60 +10 3.5 -
99 Bourne Supremacy - 78 8 +70 3.5 -
99 Norse Warrior - 56 8 +48 3.5 -
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