Constantin Frantzen (born 16 March 1998) is a German tennis player who specializes in doubles.
Frantzen has a career high ATP doubles ranking of world No. 59, achieved on 24 June 2024.[1] He has won six ATP Challenger doubles titles, all with partner Hendrik Jebens.
He played college tennis at Baylor University.[2]
Career
2023–2024: ATP and Grand Slam debuts in doubles
Frantzen made his ATP Tour doubles main draw debut at the Swiss Open Gstaad alongside Hendrik Jebens.
He reached his first ATP Tour final at the Moselle Open with partner Jebens, but lost to Hugo Nys and Jan Zieliński.[3]
Doubles performance timeline
W | F | SF | QF | #R | RR | Q# | DNQ | A | NH |
Current through the 2024 Mallorca Championships.
Tournament | 2023 | 2024 | SR | W–L |
---|---|---|---|---|
Grand Slam tournaments | ||||
Australian Open | A | 1R | 0 / 1 | 0–1 |
French Open | A | 1R | 0 / 1 | 0–1 |
Wimbledon | A | 0 / 0 | 0–0 | |
US Open | A | 0 / 0 | 0–0 | |
Win–loss | 0–0 | 0–2 | 0 / 2 | 0–2 |
Career statistics | ||||
Tournaments | 5 | 12 | 17 | |
Titles | 0 | 0 | 0 | |
Finals | 1 | 0 | 1 | |
Overall win–loss | 3–5 | 9–12 | 12–17 | |
Year-end ranking | 65 | 41% |
ATP Tour finals
Doubles: 1 (1 runner-up)
|
|
Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
---|---|---|---|---|---|---|---|---|
Loss | 0–1 | Nov 2023 | Moselle Open, France |
250 Series | Hard (i) | ![]() |
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4–6, 4–6 |
ATP Challenger finals
Doubles: 15 (7–8)
Finals by surface |
---|
Hard (2–5) |
Clay (5–2) |
Carpet (0–1) |
Result | W–L | Date | Tournament | Surface | Partner | Opponents | Score |
---|---|---|---|---|---|---|---|
Loss | 0–1 | Sep 2022 | Columbus, United States |
Hard | ![]() |
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2–6, 5–7 |
Loss | 0–2 | Oct 2022 | Las Vegas, United States |
Hard | ![]() |
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4–6, 6–7(1–7) |
Loss | 0–3 | Mar 2023 | Pau, France |
Hard (i) | ![]() |
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6–3, 1–6, [8–10] |
Loss | 0–4 | Mar 2023 | Lugano, Switzerland |
Hard (i) | ![]() |
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2–6, 6–7(6–8) |
Win | 1–4 | Mar 2023 | Biel/Bienne, Switzerland |
Hard (i) | ![]() |
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6–2, 6–4 |
Loss | 1–5 | May 2023 | Mauthausen, Austria |
Clay | ![]() |
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4–6, 2–6 |
Win | 2–5 | Jun 2023 | Heilbronn, Germany |
Clay | ![]() |
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7–6(9–7), 6–4 |
Loss | 2–6 | Jun 2023 | Lyon, France |
Clay | ![]() |
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4–6, 6–2, [7–10] |
Win | 3–6 | Aug 2023 | Augsburg, Germany |
Clay | ![]() |
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6–2, 6–2 |
Win | 4–6 | Sep 2023 | Como, Italy |
Clay | ![]() |
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6–3, 6–4 |
Win | 5–6 | Sep 2023 | Bad Waltersdorf, Austria |
Clay | ![]() |
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6–1, 6–2 |
Win | 6–6 | Oct 2023 | Orléans, France |
Hard (i) | ![]() |
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7–6(7–5), 7–6(14–12) |
Loss | 6–7 | Nov 2023 | Ismaning, Germany |
Carpet (i) | ![]() |
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6–7(4–7), 4–6 |
Loss | 6–8 | Mar 2024 | Lugano, Switzerland |
Hard (i) | ![]() |
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7–6(11–9), 6–7(1–7), [8–10] |
Win | 7–8 | May 2024 | Mauthausen, Austria |
Clay | ![]() |
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6–4, 6–4 |
ITF World Tennis Tour finals
Doubles: 11 (5–6)
Finals by surface |
---|
Hard (1–4) |
Clay (3–2) |
Carpet (1–0) |
Result | W–L | Date | Tournament | Surface | Partner | Opponents | Score |
---|---|---|---|---|---|---|---|
Win | 1–0 | Oct 2015 | Ismaning, Germany |
Carpet (i) | ![]() |
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2–6, 7–5(7–5), [10–8] |
Loss | 1–1 | Oct 2021 | M15 Lubbock, United States |
Hard | ![]() |
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4–6, 6–4, [5–10] |
Loss | 1–2 | Nov 2021 | M25 Harlingen, United States |
Hard | ![]() |
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6–7(3–7), 7–5, [7–10] |
Loss | 1–3 | Feb 2022 | M25 Glasgow, United Kingdom |
Hard (i) | ![]() |
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6–4, 6–7(1–7), [4–10] |
Loss | 1–4 | Apr 2022 | M15 Monastir, Tunisia |
Hard | ![]() |
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6–7(4–7), 7–6(7–2), [2–10] |
Win | 2–4 | Apr 2022 | M15 Monastir, Tunisia |
Hard | ![]() |
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7–5, 2–6, [10–8] |
Win | 3–4 | May 2022 | M15 Meerbusch, Germany |
Clay | ![]() |
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7–6(7–5), 6–4 |
Win | 4–4 | May 2022 | M25 Most, Czech Republic |
Clay | ![]() |
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6–3, 4–6, [10–7] |
Loss | 4–5 | Jun 2022 | M25 Arlon, Belgium |
Clay | ![]() |
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6–7(5–7), 4–6 |
Win | 5–5 | Jul 2022 | M25 Kassel, Germany |
Clay | ![]() |
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6–4, 6–2 |
Loss | 5–6 | Aug 2022 | M25 Wetzlar, Germany |
Clay | ![]() |
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4–6, 3–6 |
References
- ^ "Constantin Frantzen - Overview". ATP Tour.
- ^ "Constantin Frantzen – Men's Tennis". Baylor University Athletics.
- ^ "Escobar/Nedovyesov Win Sofia Doubles Title; Nys/Zielinski Retain Metz Crown". ATP Tour. 11 November 2023.
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