Two games makes a biathlon
                                            Shooting and skiing
                                            Three games makes a triathlon
                                            Swimming, biking, long-distance running
                                            Four games makes a tetrathlon
                                            Hurdles, shot-put, running, high jump, and short-distance running
                                            Five games make a pentathlon
                                            Long jump,, discus throwing, stadion, javelin throwing, and wrestling
                                            Seven games makes a heptathlon
                                            Hurdles, running high jump, shot-put, 200m race, long jump, javelin throwing, and middle-distance running
                                            Eight games makes an octathlon
                                            100m race, long jump, shot-put,400m race, 110m hurdles, javelin throwing, running high jump, and 1500m race
                                            Ten games makes an decathlon
                                            100m race, long jump, shot-put, running high jump, 400m race, 110 m hurdles, discus throw, pole vaulting, javelin throwing, and 1500m race
                                            20 games makes an icosathlon
                                            100m race, long j ump, 200m hurdles, shot-put, 5000m race, 800m race, running high jump, 400m race, hammer throw, 3000m obstacle course, 110m hurdles, discus throw, 200m race, pole vault, 3000m race, 400m hurdles, javelin throwing, 1500m race, triple jump, and 10000m race