Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU MAIDEN PLATE (For all Maidens)

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Line Horse
Royal Raphael
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
8 / 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    Run For Cover        5    58.0    1    0.00     0.0   -     71           6     +6
2    Sky Velocity         5    55.5    2    3.00     0.0   62    68           68    +6
3    Royal Raphael        3    58.0    3    4.00     7.0   58    58           58    +0
4    Chicks For Free      3    57.0    4    4.45     7.0   -     55           55    +55
5    Bright Blue Sky      2    58.0    5    4.50     0.0   -     71           71    +71
6    Tree Fairy           3    55.0    6    5.25     7.0   -     51           51    +51
7    Big Five             3    60.0    7    6.50     7.0   57    61           61    +4
8    Silvano's Song       3    58.0    8    6.55     7.0   -     57           57    +57
9    Sky Runner           3    60.0    9    9.30     7.0   50    61           61    +11
10   Raining Rubies       5    55.0    10   17.80    0.0   -     65           65    +65
11   Prince Of Tides      3    58.0    11   18.50    7.0   56    57           57    +1
99   Ngokushesha          3    58.0    99   0.00     7.0   -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Run For Cover - 70 6 +64 0.0 -
2 Sky Velocity 62 57 68 -11 0.0 -
3 Royal Raphael Line 58 54 58 -4 7.0
4 Chicks For Free - 54 55 -1 7.0 -
5 Bright Blue Sky - 76 71 +5 0.0 -
6 Tree Fairy - 54 51 +3 7.0 -
7 Big Five 57 53 61 -8 7.0 -
8 Silvano's Song - 74 57 +17 7.0 -
9 Sky Runner 50 42 61 -19 7.0 -
10 Raining Rubies - 75 65 +10 0.0 -
11 Prince Of Tides 56 49 57 -8 7.0 -
99 Ngokushesha - 69 57 +12 7.0 -
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