Official NHA Assessment

Race 5: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Mattiazo
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
5 / 11
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    Hopscotch            2    55.0    1    0.00     0.0   -     55           6     +6
2    Pepper Tree          2    55.0    2    0.50     0.0   -     60           60    +60
3    Mattiazo             4    60.0    3    2.70     0.5   66    66           66    +0
4    Flightlight          3    60.0    4    10.50    1.5   68    62           62    -6
5    Falconfly            4    58.5    5    11.25    0.5   -     61           61    +61
6    Bella Boop Boop      3    60.0    6    13.50    1.5   63    62           62    -1
7    Umami                3    60.0    7    20.00    1.5   -     62           62    +62
8    Cape Flower          3    60.0    8    26.75    1.5   57    62           62    +5
9    Pass The Baton       4    60.0    9    28.25    0.5   48    64           64    +16
99   Cool Reggae          4    60.0    99   0.00     0.5   -     64           64    +0
99   Future Success       3    60.0    99   0.00     1.5   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hopscotch - 66 6 +60 0.0 -
2 Pepper Tree - 67 60 +7 0.0 -
3 Mattiazo Line 66 69 66 +3 0.5
4 Flightlight 68 61 62 -1 1.5 -
5 Falconfly - 73 61 +12 0.5 -
6 Bella Boop Boop 63 58 62 -4 1.5 -
7 Umami - 55 62 -7 1.5 -
8 Cape Flower 57 57 62 -5 1.5 -
9 Pass The Baton 48 48 64 -16 0.5 -
99 Cool Reggae - 64 64 ✓ Match 0.5 -
99 Future Success - 62 62 ✓ Match 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