SELECT
	count(*)
FROM
	N_RACE
INNER JOIN
	N_UMA_RACE AS FIRST
		ON
			FIRST.Year = N_RACE.Year
				AND
			FIRST.MonthDay = N_RACE.MonthDay
				AND
			FIRST.JyoCD = N_RACE.JyoCD
				AND
			FIRST.RaceNum = N_RACE.RaceNum
				AND
			FIRST.KakuteiJyuni = "01"
INNER JOIN
	N_UMA_RACE AS SECOND
		ON
			SECOND.Year = N_RACE.Year
				AND
			SECOND.MonthDay = N_RACE.MonthDay
				AND
			SECOND.JyoCD = N_RACE.JyoCD
				AND
			SECOND.RaceNum = N_RACE.RaceNum
				AND
			SECOND.KakuteiJyuni = "02"
INNER JOIN
	N_UMA_RACE AS THIRD
		ON
			THIRD.Year = N_RACE.Year
				AND
			THIRD.MonthDay = N_RACE.MonthDay
				AND
			THIRD.JyoCD = N_RACE.JyoCD
				AND
			THIRD.RaceNum = N_RACE.RaceNum
				AND
			THIRD.KakuteiJyuni = "02"
WHERE
	N_RACE.JyoCD IN("01", "02", "03", "04", "05", "06", "07", "08", "09", "10")
		AND
	N_RACE.Year IN("2010", "2011", "2012", "2013", "2014", "2015", "2016", "2017", "2018", "2019", "2020", "2021")
		AND
	N_RACE.TorokuTosu = "18"
		AND
	FIRST.Ninki IN("01", "02", "03")
		AND
	SECOND.Ninki IN("01", "02", "03")
		AND
	THIRD.Ninki IN("01", "02", "03")