Official NHA Assessment

Race 4: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Delaware River
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 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    Delaware River       2    59.0    1    0.00     0.0   75    75           75    +0
2    The Reason           3    59.0    2    2.70     5.0   -     67           67    +67
3    Master'S Rose        3    59.0    3    4.30     5.0   -     65           65    +65
4    Sweetsummerlove      2    60.0    4    4.60     0.0   52    77           77    +25
5    My Eyes Never Lie    2    59.0    5    8.60     0.0   59    75           75    +16
6    Leanne's Love        2    59.0    6    9.80     0.0   63    75           75    +12
7    Asminderod           3    59.0    7    10.30    5.0   -     65           65    +65
8    Amber's Fate         2    59.0    8    20.50    0.0   -     75           75    +75
99   Winds Of Grace       3    60.0    99   0.00     5.0   -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Delaware River Line 75 77 75 +2 0.0
2 The Reason - 73 67 +6 5.0 -
3 Master'S Rose - 68 65 +3 5.0 -
4 Sweetsummerlove 52 58 77 -19 0.0 -
5 My Eyes Never Lie 59 59 75 -16 0.0 -
6 Leanne's Love 63 58 75 -17 0.0 -
7 Asminderod - 66 65 +1 5.0 -
8 Amber's Fate - 56 75 -19 0.0 -
99 Winds Of Grace - 72 67 +5 5.0 -
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