Frances Tiafoe and Daniel Altmaier will fight against each other in the semifinal of the Terra Wortmann Open for the 5th time in their career. They are scheduled to compete on Saturday at 5:30 pm on HERISTO-ARENA. Here the head to head stats and relative prediction.
Prediction, odds and live streaming
The pick for Tennis Tonic is Frances Tiafoe who should win in 2 sets.
As per the initial odds, Frances Tiafoe is the pick to win this match.
Frances Tiafoe -> 1.36
Daniel Altmaier -> 3.125
Here where top tennis events are broadcasted or streamed online (ATP, WTA).
At the challenger level, there will be free live streaming on Challenger TV.
Prediction and head to head Frances Tiafoe vs. Daniel Altmaier
This will be the 5th time that Frances Tiafoe and Daniel Altmaier play each other. The head to head is 4-0 for Tiafoe (see full H2H stats), 1-0 on grass.
The last time that they squared off, Tiafoe won 7-6(3) 4-6 6-4 in the 1st round in Stuttgart back in June 2026.
Highlights Frances Tiafoe vs Daniel Altmaier – Stuttgart 09-June-2026
Frances Tiafoe
27 - 12win/loss
8
8
LWLWWWWWLW | Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2026 | 43-18 | 26-11 | 7-4 | 1-1 | 9-2 | 0-0 |
| 2025 | 26-23 | 13-13 | 11-7 | 1-1 | 1-2 | 0-0 |
| 2024 | 33-27 | 21-13 | 5-6 | 4-5 | 3-3 | 0-0 |
| 2023 | 40-21 | 21-10 | 8-4 | 4-5 | 7-2 | 0-0 |
| 2022 | 35-25 | 19-11 | 8-6 | 5-5 | 3-3 | 0-0 |
Ranked no. 26, Tiafoe got to the semifinal after beating Flavio Cobolli 6-2 7-6(4), Sho Shimabukuro 6-4 7-5 and Felix Auger-Aliassime 3-6 6-3 7-6(12).
In the quarter against Auger-Aliassime, Francis recovered from a 1-set down deficit before winning (3-6 6-3 7-612). During the match, Tiafoe and Auger-Aliassime scored the same amount of points (105). However, the world no. 26 was stronger during the important points and that was the most significant difference in the match. Tiafoe was extremely aggressive to blast 51 winners.
Regarding the service games, Tiafoe recorded 5 aces and he committed only 3 double faults. Frances Tiafoe lost the serve twice and he saved 7 break points. Furthermore, Tiafoe put 67% of his first serves in, winning 70% (51/73) of the points behind his 1st serve and 61% (22/36) on the 2nd serve. Tiafoe broke Auger-Aliassime twice after converting 40% of his break points (2/5).
Overall Performance in this tournament
Tiafoe has surrendered 1 set in this event to win 53% of the points he played.
ATP Halle - Frances Tiafoe's projected path
Tiafoe has favorable win-loss record in the last 10 years having won 57% of his matches (308-231). 5-1 on grass in 2026. Talking about his performance on the same surface of this competition, Tiafoe has a compiled 34-22 record in the last years on grass.
Tiafoe’s best result of the season was getting to the final in Acapulco.
Tiafoe has a composed 27-12 win-loss record in 2026, 5-1 on grass (See FULL STATS).
Previously in Halle
Francis has never competed in this tournament before.
Daniel Altmaier
14 - 18win/loss
67
44
LLLLWLWLWL | Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2026 | 20-29 | 3-11 | 13-13 | 0-1 | 4-4 | 0-0 |
| 2025 | 34-35 | 11-16 | 13-8 | 9-8 | 1-3 | 0-0 |
| 2024 | 30-34 | 5-9 | 19-20 | 5-4 | 1-1 | 0-0 |
| 2023 | 32-31 | 8-13 | 21-10 | 2-5 | 1-3 | 0-0 |
| 2022 | 34-31 | 10-14 | 22-12 | 0-1 | 2-4 | 0-0 |
Ranked no. 81, Altmaier reached the semifinal after beating Nikoloz Basilashvili 7-5 6-4, Hubert Hurkacz 3-6 6-3 7-5 and Daniil Medvedev 6-4 6-7(6) 6-4.
In the quarter, The German defeated Medvedev (6-4 6-76 6-4). During the match Altmaier scored 111 points vs Medvedev’s 109. Daniel was pretty aggressive to blast 57 winners.
About the serving games, Altmaier fired 15 aces and he committed only 7 double faults. Daniel Altmaier lost the serve once and he saved 5 break points. Furthermore, Altmaier put 60% of his first serves in, winning 76% (57/75) of the points behind his 1st serve and 44% (22/50) on the 2nd serve. Daniel broke Medvedev 3 times after converting 60% of his break points (3/5).
Overall Performance in this tournament
The German has conceded 2 set in the tournament to win 52% of the points he played.
ATP Halle - Daniel Altmaier's projected path
Daniel’s best result of the year was getting to the final in the Naples Challenger.
Altmaier has a composed 14-18 win-loss record in 2026, 3-1 on grass (See FULL STATS).
Previously in Halle
Previously, his best result was reaching the 1st round in 2021, 2022 and 2025. See his history.
H2H Performance in the tournament (main draw)
Matches, sets, games and points
| Points | Tiafoe | Altmaier |
|---|---|---|
| Match played | 3 | 3 |
| Tot Set | 7 | 8 |
| Tot Games | 74 | 85 |
| Pts | 251-223 | 270-252 |
| Total Points | 474 | 522 |
| Winners | 114 | 144 |
| %Winners | 45% | 53% |
Both Tiafoe and Altmaier played 3 matches. Both players lost a set in the event. Frances Tiafoe conceded 1 set, while Daniel Altmaier conceded 2 sets. Tiafoe has played 1 set(s) less than Altmaier (7 vs 8). Therefore, Tiafoe played 11 games less than Altmaier. Francis scored 114 winners (45% of the total points). On the other side, The German managed to score 144 winners (53%).
Serve Performance
| Serve | Tiafoe | Altmaier |
|---|---|---|
| Aces | 18 | 34 |
| Avg per match | 6 | 11.3 |
| 1st in | 150/229 | 183/281 |
| %1st in | 66% | 65% |
| 1st pts | 114/150 | 144/183 |
| %1st pts | 76% | 79% |
| 2nd pts | 48/79 | 45/98 |
| %2nd pts | 61% | 46% |
Tiafoe bagged 18 aces (6 per match). Altmaier struck 34 aces (11.3 per match). Tiafoe won 76% points on his first serve. He quite strong on his second serve to win 61% of the points. On the other side, Altmaier won 79% of the points behind his first serve. He had a solid display on his second serve to win 46% of the points.
How they played the important points
| Breaks | Tiafoe | Altmaier |
|---|---|---|
| Won | 7 | 8 |
| Converted | 7/20 | 8/22 |
| % Converted | 35% | 36% |
| Conceded | 12 | 15 |
| Saved | 9 | 12 |
| % Saved | 75% | 80% |
| Times Broken | 3 | 3 |
Francis broke his opponents 7 times with a 35% conversion rate. Francis conceded his serve 3 times and he saved 75% of the break points that he conceded. Altmaier broke his opponents 8 times with a 36% conversion rate. Daniel conceded his serve 3 times and he saved 80% of the break points that he conceded.
| Tiafoe | |||||
| R1 Cobolli |
R2 Shimabukuro |
1/4 Auger-Aliassime |
Total | ||
|---|---|---|---|---|---|
| Score | 6-2 7-64 | 6-4 7-5 | 3-6 6-3 7-612 | ||
| Tot Set | 2 | 2 | 3 | 7 | |
| Tot Games | 21 | 22 | 31 | 74 | |
| pts | 71-55 | 75-63 | 105-105 | 251-223 | |
| Total points | 126 | 138 | 210 | 474 | |
| Winners | 34 | 29 | 51 | 114 | |
| %Winners | 48% | 39% | 49% | 45% | |
| SERVE | |||||
| Aces | 9 | 4 | 5 | 18 | |
| Double Faults | 0 | 1 | 3 | 4 | |
| 1st in | 42/58 | 35/62 | 73/109 | 150/229 | |
| % 1st in | 72% | 56% | 67% | 66% | |
| 1st pts | 34/42 | 29/35 | 51/73 | 114/150 | |
| % 1st pts | 81% | 83% | 70% | 76% | |
| 2nd pts | 11/16 | 15/27 | 22/36 | 48/79 | |
| % 2nd pts | 69% | 56% | 61% | 61% | |
| Breaks | |||||
| Won | 2 | 3 | 2 | 7 | |
| Converted | 2/5 | 3/10 | 2/5 | 7/20 | |
| Converted % | 40% | 30% | 40% | 35% | |
| Conceded | 0 | 3 | 9 | 12 | |
| Saved | 0/0 | 2/3 | 7/9 | 9 | |
| Saved % | – | 67% | 78% | 48% | |
| Times Broken | 0 | 1 | 2 | 3 | |
| Altmaier | |||||
| R1 Basilashvili |
R2 Hurkacz |
1/4 Medvedev |
Total | ||
|---|---|---|---|---|---|
| Score | 7-5 6-4 | 3-6 6-3 7-5 | 6-4 6-76 6-4 | ||
| Tot Set | 2 | 3 | 3 | 8 | |
| Tot Games | 22 | 30 | 33 | 85 | |
| pts | 72-55 | 87-88 | 111-109 | 270-252 | |
| Total points | 127 | 175 | 220 | 522 | |
| Winners | 35 | 52 | 57 | 144 | |
| %Winners | 49% | 60% | 51% | 53% | |
| SERVE | |||||
| Aces | 13 | 6 | 15 | 34 | |
| Double Faults | 0 | 4 | 7 | 11 | |
| 1st in | 42/59 | 66/97 | 75/125 | 183/281 | |
| % 1st in | 71% | 68% | 60% | 65% | |
| 1st pts | 35/42 | 52/66 | 57/75 | 144/183 | |
| % 1st pts | 83% | 79% | 76% | 79% | |
| 2nd pts | 9/17 | 14/31 | 22/50 | 45/98 | |
| % 2nd pts | 53% | 45% | 44% | 46% | |
| Breaks | |||||
| Won | 3 | 2 | 3 | 8 | |
| Converted | 3/10 | 2/7 | 3/5 | 8/22 | |
| Converted % | 30% | 29% | 60% | 36% | |
| Conceded | 2 | 7 | 6 | 15 | |
| Saved | 1/2 | 6/7 | 5/6 | 12 | |
| Saved % | 50% | 86% | 83% | 73% | |
| Times Broken | 1 | 1 | 1 | 3 | |
Head 2 Head
WWWWWWWWWW
WWWWWWWWWW Tennis Scores in Halle
- Frances TiafoeTiafoe – Felix Auger-AliassimeAuger-Aliassime (3-6 6-3 7-612) – See score progression
- Taylor FritzFritz – Ben SheltonShelton (6-75 7-68 7-63) – See score progression
- Alexander ZverevZverev – Raphael CollignonCollignon (7-610 7-62) – See score progression
- Daniel AltmaierAltmaier – Daniil MedvedevMedvedev (6-4 6-76 6-4) – See score progression
- Theo Arribage/Albano OlivettiArribage/Albano Olivetti – Robert Cash/James TracyCash/James Tracy (6-4 6-4) – See score progression
- Robert Galloway/John PeersGalloway/John Peers – Jakob Schnaitter/Mark WallnerSchnaitter/Mark Wallner (6-3 7-64) – See score progression
- Flavio Cobolli/Ben SheltonCobolli/Ben Shelton – Marcelo Melo/Alexander ZverevMelo/Alexander Zverev (7-65 6-3) – See score progression
- Alexander ZverevZverev – Raphael CollignonCollignon (7-6(10) 7-6(2)) – See score progression
- Daniel AltmaierAltmaier – Daniil MedvedevMedvedev (6-4 6-7(6) 6-4) – See score progression
- Frances TiafoeTiafoe – Felix Auger AliassimeAuger Aliassime (3-6 6-3 7-6(12)) – See score progression
Upcoming matches in the draw
- Alexander ZverevZverev – Taylor Harry FritzHarry Fritz (5-9) – H2H and prediction
- Daniel AltmaierAltmaier – Frances TiafoeTiafoe (0-4) – H2H and prediction
