Kai Wagner
DF · Born February 15, 1997
Age in each playoff game
- 2019 MLS Cup Playoffs (October 20, 2019), Philadelphia Union vs New York Red Bulls 4–3: 22 years, 247 days
- 2019 MLS Cup Playoffs (October 24, 2019), Philadelphia Union vs Atlanta United 0–2: 22 years, 251 days
- 2020 MLS Cup Playoffs (November 24, 2020), Philadelphia Union vs New England Revolution 0–2: 23 years, 283 days
- 2021 MLS Cup Playoffs (November 20, 2021), Philadelphia Union vs New York Red Bulls 1–0: 24 years, 278 days
- 2021 MLS Cup Playoffs (November 28, 2021), Philadelphia Union vs Nashville 1–1 (2–0 pens): 24 years, 286 days
- 2022 MLS Cup Playoffs (October 20, 2022), Philadelphia Union vs FC Cincinnati 1–0: 25 years, 247 days
- 2022 MLS Cup Playoffs (October 30, 2022), Philadelphia Union vs NYCFC 3–1: 25 years, 257 days
- MLS Cup 2022 (November 5, 2022), Philadelphia Union vs LAFC 3–3 (0–3 pens): 25 years, 263 days
- 2023 MLS Cup Playoffs (October 28, 2023), Philadelphia Union vs New England Revolution 3–1: 26 years, 255 days
- 2025 MLS Cup Playoffs (October 26, 2025), Philadelphia Union vs Chicago Fire 2–2 (4–2 pens): 28 years, 253 days
- 2025 MLS Cup Playoffs (November 1, 2025), Philadelphia Union vs Chicago Fire 3–0: 28 years, 259 days
- 2025 MLS Cup Playoffs (November 23, 2025), Philadelphia Union vs NYCFC 0–1: 28 years, 281 days
Age in each season
- 2019 (Philadelphia Union): 22 years, 15 days to 22 years, 233 days
- 2020 (Philadelphia Union): 23 years, 14 days to 23 years, 267 days
- 2021 (Philadelphia Union): 24 years, 60 days to 24 years, 265 days
- 2022 (Philadelphia Union): 25 years, 11 days to 25 years, 236 days
- 2023 (Philadelphia Union): 26 years, 10 days to 26 years, 248 days
- 2024 (Philadelphia Union): 27 years, 6 days to 27 years, 247 days
- 2025 (Philadelphia Union): 28 years, 7 days to 28 years, 245 days
- 2026 (Philadelphia Union): 29 years, 6 days to 29 years, 265 days