Complex sentence: At 44, Kim is the oldest winning female (she is tied with Season 7's Joyce); together they form the oldest winning team (Chip was 46 and was the oldest male to win until Season 24).
Split into simpler sentences: At 44, Kim is the oldest winning female (she is tied with Season 7's Joyce). Together, they form the oldest winning team (Chip was 46 and was the oldest male to win until Season 24).