Получения сущности по вторичному ключу. Hibernate

Есть две связанные таблицы, Runner и Registration.

package ru.worldskills.model.entity;
import javax.persistence.*;
import java.util.Date;
@Entity
@Table(name = "runner")
public class Runner{
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "RunnerId")
    private int runnerId;
    @Column(name = "Email")
    private String email;
    @ManyToOne
    @JoinColumn(name =  "Gender", foreignKey = @ForeignKey(ConstraintMode.CONSTRAINT))
    private Gender gender;
    @Column(name = "DateOfBirth")
    private Date dateOfBirth;
    @ManyToOne
    @JoinColumn(name = "CountryCode", foreignKey = @ForeignKey(ConstraintMode.CONSTRAINT))
    private Country country;
}

и

package ru.worldskills.model.entity;
import javax.persistence.*;
import java.math.BigDecimal;
import java.util.Date;
@Entity
@Table(name = "registration")
public class Registration{
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "RegistrationId")
    private int registrationId;
    @OneToOne
    @JoinColumn(name = "RunnerId")
    private Runner runner;
    @Column(name = "RegistrationDateTime")
    private Date registrationDateTime;
    @ManyToOne
    @JoinColumn(name = "RaceKitOptionId", foreignKey = @ForeignKey(ConstraintMode.CONSTRAINT))
    private RaceKitOption raceKitOption;
    @ManyToOne
    @JoinColumn(name = "RegistrationStatusId", foreignKey = @ForeignKey(ConstraintMode.CONSTRAINT))
    private RegistrationStatus registrationStatus;
    @Column(name = "cost")
    private BigDecimal cost;
    @ManyToOne
    @JoinColumn(name = "CharityId", foreignKey = @ForeignKey(ConstraintMode.CONSTRAINT))
    private Charity charity;
    @Column(name = "SponsorshipTarget")
    private BigDecimal sponsorshipTarget;
}

Нужно получить строку из Registration по RunnerID. В нативном SQL это делается легко, а тут не получается. Можно и CriteriaAPI и JPQL использовать.