Learner Tien and Vitaliy Sachko will play each other in the semifinal of the Moselle Open for the 1^st time in their career. They are scheduled to compete on Friday at 6:00 pm on COURT CENTRAL. In this post, we analyze their head to head performance and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Learner Tien who should win in 2 sets.

As per the initial odds, Learner Tien is the pick to win this match.
Learner Tien -> 1.148
Vitaliy Sachko -> 5.45

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Prediction and head to head Learner Tien vs. Vitaliy Sachko

There is no head to head record between Learner Tien and Vitaliy Sachko since this will be the first time that they will play each other in the main tour.

Learner Tien

Ranked no. 38, Tien reached the semifinal after beating Ugo Blanchet 6-3 6-3, Moez Echargui 7-6(3) 6-3 and Matteo Berrettini 5-7 6-2 6-3.

In the quarter against Berrettini, The American recovered from a 1-set down deficit before winning (5-7 6-2 6-3). During the match, Tien scored 84 points vs Berrettini’s 69. Learner was extremely aggressive to blast 44 winners.

Regarding the service games, Tien bagged 6 aces and he committed only 4 double faults. Overall, Learner Tien was extremely efficient on serve to win 77% (44/57) of his 1st serve and 65% (15/23) on the second serve. However, this didn’t prevent his to concede the serve once. Learner was clinical in his return game without wasting any break point and break Berrettini 3 times.

Overall Performance in this tournament

The American has conceded 1 set in this competition to conquer 57% of the points he played.

Tien has a fantastic win-loss record in the last 4 years having won 70% of his matches (142-60). 4-1 on indoor hard courts in 2025. In connection with his performance on the same surface of this event, Tien has a compiled25-9 win-loss record in the last 4 years on indoor hard courts.

Tien’s best result of the season was reaching the final in Beijing.

Learner has a compiled 37-25 win-loss record in 2025, 4-1 on indoor hard courts (See FULL STATS).

Previously in Metz

The American has never competed in this tournament before.

Vitaliy Sachko

Ranked no. 222, Vitaliy reached the semifinal after defeating Alexander Shevchenko 6-3 6-1, Clement Tabur 5-7 6-3 6-2, Giovanni Mpetshi Perricard 7-6(10) 6-3, Alexander Bublik 7-5 3-6 7-5 and Clement Tabur 6-4 3-6 6-4.

In the quarter, Sachko defeated Tabur (6-4 3-6 6-4).During the match Sachko scored less points (2) than Tabur. In fact, the world no. 38 won 84 points vs Tabur’s. That means that Sachko was more focused during the important points. Sachko was exceptionally aggressive to blast 45 winners.

About the serving games, Sachko bagged 9 aces and he committed only 1 double fault for the entire match. Overall, Vitaliy Sachko was exceptionally effective on serve to win 75% (45/60) of his 1st serve and 54% (13/24) on the second serve. However, this didn’t prevent his to concede the serve once. Sachko broke Tabur twice after converting 25% of his break points (2/8).

Overall Performance in this tournament

The Ukrainian started his run at this tournament from the qualifications. In the main draw, he has conceded 2 set in the tournament to win 52% of the points he played.

The Ukrainian’s best result of the season was getting to the final in the Barletta Challenger and the Monza Challenger.

Sachko has an aggregate 42-31 win-loss record in 2025, 15-10 on indoor hard courts (See FULL STATS).

H2H Performance in the tournament (main draw)

Matches, sets, games and points

Points	Tien	Sachko
Match played	3	4
Tot Set	7	10
Tot Games	69	100
Pts	230-176	313-292
Total Points	406	605
Winners	101	164
%Winners	44%	52%

Tien played 3 matches while Sachko competed in 4 matches. Sachko started his run from the qualifications while Tien had a direct access to the main draw. Both players lost a set in the event. Learner Tien dropped 1 set, while Vitaliy Sachko dropped 2 sets. Tien has played 3 set(s) less than Sachko (7 vs 10). Therefore, Tien played 31 games less than Sachko. Learner scored 101 winners (44% of the total points). On the other side, Vitaliy managed to score 164 winners (52%).

Serve Performance

Serve	Tien	Sachko
Aces	15	22
Avg per match	5	5.5
1st in	121/189	220/318
%1st in	64%	69%
1st pts	101/121	164/220
%1st pts	83%	75%
2nd pts	43/68	57/98
%2nd pts	63%	58%

Tien blasted 15 aces (5 per match). Sachko recorded 22 aces (5.5 per match). Tien won 83% points on his first serve. He pretty solid on his second serve to win 63% of the points. On the other side, Sachko won 75% of the points behind his first serve. He had a solid display on his second serve to win 58% of the points.

How they played the important points

Breaks	Tien	Sachko
Won	8	10
Converted	8/25	10/23
% Converted	32%	43%
Conceded	6	20
Saved	4	17
% Saved	67%	85%
Times Broken	2	3

Learner broke his opponents 8 times with a 32% conversion rate. Tien surrendered his serve twice and he saved 67% of the break points that he conceded. Vitaliy broke his opponents 10 times with a 43% conversion rate. The Ukrainian conceded his serve 3 times and he saved 85% of the break points that he conceded.

Tien
	R1 Blanchet	R2 Echargui	1/4 Berrettini	Total
Score	6-3 6-3	7-63 6-3	5-7 6-2 6-3
Tot Set	2	2	3	7
Tot Games	18	22	29	69
pts	67-41	79-66	84-69	230-176
Total points	108	145	153	406
Winners	25	32	44	101
%Winners	37%	41%	52%	44%
SERVE
Aces	4	5	6	15
Double Faults	1	4	4	9
1st in	27/41	37/68	57/80	121/189
% 1st in	66%	54%	71%	64%
1st pts	25/27	32/37	44/57	101/121
% 1st pts	93%	86%	77%	83%
2nd pts	11/14	17/31	15/23	43/68
% 2nd pts	79%	55%	65%	63%
Breaks
Won	3	2	3	8
Converted	3/11	2/11	3/3	8/25
Converted %	27%	18%	100%	32%
Conceded	0	4	2	6
Saved	0/0	3/4	1/2	4
Saved %	–	75%	50%	42%
Times Broken	0	1	1	2

Sachko
	Q1 Shevchenko	Q3 Tabur	R1 Mpetshi	R2 Bublik	1/4 Tabur	Total
Score	6-3 6-1	5-7 6-3 6-2	7-610 6-3	7-5 3-6 7-5	6-4 3-6 6-4
Tot Set	2	3	2	3	3	13
Tot Games	16	29	22	33	29	129
pts	58-40	86-84	78-66	93-100	84-86	399-376
Total points	98	170	144	193	170	775
Winners	25	43	40	54	45	207
%Winners	43%	50%	51%	58%	54%	52%
SERVE
Aces	3	6	3	7	9	28
Double Faults	1	4	1	0	1	7
1st in	36/56	53/86	49/69	75/109	60/84	273/404
% 1st in	64%	62%	71%	69%	71%	68%
1st pts	25/36	43/53	40/49	54/75	45/60	207/273
% 1st pts	69%	81%	82%	72%	75%	76%
2nd pts	10/20	17/33	15/20	19/34	13/24	74/131
% 2nd pts	50%	52%	75%	56%	54%	56%
Breaks
Won	5	1	1	2	2	11
Converted	5/8	1/7	1/3	2/4	2/8	11/30
Converted %	63%	14%	33%	50%	25%	37%
Conceded	5	8	2	6	7	28
Saved	4/5	6/8	2/2	5/6	6/7	23
Saved %	80%	75%	100%	83%	86%	141%
Times Broken	1	2	0	1	1	5

Tennis Scores in Metz

• Lorenzo SonegoSonego – Daniel AltmaierAltmaier (6-4 7-6⁶) – See score progression
• Sander Arends/Luke JohnsonArends/Luke Johnson – Rafael Matos/Marcelo MeloMatos/Marcelo Melo (4-6 6-3 10-5) – See score progression
• Vitaliy SachkoSachko – Clement TaburTabur (6-4 3-6 6-4) – See score progression
• Learner TienTien – Matteo BerrettiniBerrettini (5-7 6-2 6-3) – See score progression
• Cameron NorrieNorrie – Kyrian JacquetJacquet (4-6 7-6² 6-4) – See score progression
• Petr Nouza/Patrik RiklNouza/Patrik Rikl – Rithvik Choudary Bollipalli/Arjun KadheChoudary Bollipalli/Arjun Kadhe (7-6² 7-5) – See score progression
• Guido Andreozzi/Manuel GuinardAndreozzi/Manuel Guinard – Constantin Frantzen/Robin HaaseFrantzen/Robin Haase (6-4 6-4) – See score progression
• Quentin Halys/Pierre-Hugues HerbertHalys/Pierre-Hugues Herbert – Dan Added/Tom ParisAdded/Tom Paris (6-2 7-5) – See score progression
• Lorenzo SonegoSonego – Daniel AltmaierAltmaier (6-4 7-6(6)) – See score progression
• Vitaliy SachkoSachko – Clement TaburTabur (6-4 3-6 6-4) – See score progression
• Learner TienTien – Matteo BerrettiniBerrettini (5-7 6-2 6-3) – See score progression

Upcoming matches in the draw

• Cameron NorrieNorrie – Lorenzo SonegoSonego (2-1) – H2H and prediction
• Vitaliy SachkoSachko – (0-0) – H2H and prediction