Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 19 JULY MR 74 HANDICAP (Open)

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Line Horse
Puerto Plata (ARG)
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
7 / 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    Catch The Tune       6    61.0    1    0.00     0.0   76    74           76    +0
2    Puerto Plata (ARG)   3    58.0    2    2.00     1.5   70    70           70    +0
3    Kanimambo            5    55.0    3    2.05     0.0   63    67           67    +4
4    Alado's Pride        7    62.5    4    2.80     0.0   79    80           80    +1
5    Downing Seven        5    61.5    5    4.05     0.0   77    77           77    +0
6    Crystal Maiden       4    60.0    6    4.80     0.5   77    71           71    -6
7    San Quintin          6    52.5    7    5.05     0.0   54    57           57    +3
8    Jaspero              4    58.5    8    7.30     0.5   79    68           69    -10
9    Gold For Africa      3    56.5    9    10.80    1.5   67    62           62    -5
10   Heknows              3    58.5    10   14.55    1.5   71    66           66    -5
11   Then In Focus        2    58.5    11   21.80    0.0   71    69           69    -2
99   Euphoric             6    60.5    99   0.00     0.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Catch The Tune 76 70 76 -6 0.0 -
2 Puerto Plata (ARG) Line 70 68 70 -2 1.5
3 Kanimambo 63 59 67 -8 0.0 -
4 Alado's Pride 79 73 80 -7 0.0 -
5 Downing Seven 77 69 77 -8 0.0 -
6 Crystal Maiden 77 66 71 -5 0.5 -
7 San Quintin 54 58 57 +1 0.0 -
8 Jaspero 79 76 69 +7 0.5 -
9 Gold For Africa 67 68 62 +6 1.5 -
10 Heknows 71 71 66 +5 1.5 -
11 Then In Focus 71 71 69 +2 0.0 -
99 Euphoric - 62 73 -11 0.0 -
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