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Ski Jumping Statistics

PostgreSQL analysis of men's Ski Jumping World Cup results, supported by a Python data collection pipeline.

World Cup Winners Compared

A comparison of World Cup winners across seasons that accounts for differences in the number of competitions held.

Rules

  • Only the winner of each season’s World Cup standings is included.
  • Each winner’s total points and number of competition performances are shown.
  • Average points per performance are calculated by dividing total points by the number of performances.

The analysis uses the world_cups view created for the season standings. Comparing average points per performance makes the result fairer when seasons contain different numbers of competitions.

Code

with comparison as (
	select 
		wc.season,
		j.jumper_name as jumper,
		wc.total_score as points,
		(
			select count(cr.*)
			from competition_results cr
			join competitions c using (race_id)
			where c.season = wc.season and cr.jumper_id = j.jumper_id
		) as number_of_performances
	from world_cups wc
	join jumpers j using (jumper_id)
	where pos = 1
	order by season
)
select *,
	(points / number_of_performances)::decimal(10,2) as avg_points_per_performance
from comparison;

Results

World Cup winners comparison returned by PostgreSQL0 rows