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Margaret River 2024 | Women's Historical Performance

Margaret River 2024 | Women's Historical Performance

Past Performers | Tier A:

  • Johanne Defay: Defay has participated in 9 events, achieving an Event Historic Score of 8.6 and a normalized score of 77. Her consistent performance, as reflected in both scores and a Surferlytics rating of 65, establishes her as a leading performer in Tier A.
  • Molly Picklum: With 2 event occurrences, Picklum has a Historic Score of 4.4 and a normalized score of 39. Despite fewer appearances, her high Surferlytics rating of 66 shows promising potential.

Past Performers | Tier B:

  • Tyler Wright: Wright has the most robust track record in Tier B, with an Event Historic Score of 11.2 and a normalized score of 100 from 8 events. Her Surferlytics rating of 73 underscores her extensive experience and effectiveness.
  • Tatiana Weston-Webb: With an Event Historic Score of 10.5 and a normalized score of 94 from 8 events, Weston-Webb's performance has been consistently high, supported by a Surferlytics rating of 46.
  • Caroline Marks: Marks has participated in 4 events, posting an Event Historic Score of 7.0 and a normalized score of 63. Her outstanding Surferlytics rating of 100 highlights her potential for top-tier performances.

Past Performers | Tier C:

  • Sally Fitzgibbons: Fitzgibbons leads Tier C with an Event Historic Score of 10.2 and a normalized score of 91 over 9 events. Her consistent high-level performance is further verified by a Surferlytics rating of 53.
  • Bronte Macaulay: Competing in 7 events, Macaulay has an Event Historic Score of 9.1 and a normalized score of 82, showing solid and reliable performance at Margaret River.

Women's Historical Performance | Surferlytics Score

This table shows the Surferlytics scores per year for each year that the surfer participated in the event.

Women's Historical Performance | Places

This table shows the places per year for each year that the surfer participated in the event.

Women's Historical Performance | Rounds

This table shows the rounds per year for each year that the surfer participated in the event.

The Terms

See below for a glossary of each term below:

Surferlytics Rating

Basis of Calculation:

  • The Surferlytics Rating is calculated based on the outcomes of heats—wins and losses. After each heat, a surfer's rating is adjusted, adding or subtracting points based on the result.

Calculation Method:

  • Win/Loss Outcome: A win results in gaining points, while a loss leads to losing points. The number of points gained or lost depends on the expected outcome, which is determined by the difference in ratings between the competing surfers before the heat.
  • Rating Difference: The magnitude of rating adjustment after a heat depends on the difference in Surferlytics Ratings between the competitors. A win against a higher-rated surfer results in gaining more points than a win against a lower-rated surfer, reflecting the unexpected nature of the outcome.
  • Expectation Factor: Before a heat, the system calculates the expected result based on the ratings of the two competitors. The actual result of the heat compared to this expectation determines the exact change in points.
  • Normalisation: The ratings for each of the surfers is then normalised into a scale of 10-100. This is to allow for easier interpretation of the data.

Event Historical Score

Base Metric - Heat Wins: At its core, this metric considers the number of heat wins a surfer has accumulated at the event throughout their career. This provides a basic measure of success and competitiveness.

Temporal Weighting: Recognizing that a surfer's more recent performances are likely more indicative of their current ability and form, the metric applies a weighting system. Recent years are given more significance, meaning a win in the latest event has a greater impact on the rating than a win several years back.

Calculation Method:

  • Each heat win is assigned points, with more recent wins scoring higher points due to the temporal weighting.
  • These points are then aggregated to produce a comprehensive score for each surfer, reflecting both their historical success and current form at the event.
  • Normalisation: The ratings for each of the surfers is then normalised into a scale of 0-100. This is to allow for easier interpretation of the data.

Historical Event Performance Metrics

Heats Surfed: The total number of competition heats a surfer has participated in, providing insight into their experience level.

Heat Wins: The number of heats a surfer has won in their career for the current event.

Quarterfinals: The number of times the surfer has reached the quarterfinals for this event in their career.

Semifinals: The number of times the surfer has reached the semifinals for this event in their career.

Finals: The number of times the surfer has reached the finas for this event in their career.

Avg Heat Score: The average score of their heats in their career for this event.

Heat win %: The percentage of heats won out of the total heats surfed.

Best Heat Score: The highest score a surfer has achieved in a single heat in their career for the current event.

Best Wave Score: The highest wave score a surfer has achieved in their career for the current event.

Excellent Heats: Heats where a surfer's score is above 16, indicating an exceptional performance.

Excellent Waves: The number of times a surfer has a wave scored 8 points or higher.