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ATP/French Open ATP - Qualification/Quarter-finals

Service strength keeps Damm ahead in Paris qualifier

Analysis by Predict Tennis

Note: Written by humans, with the help of AI. Based on real statistical data.

Published: May 17, 2026(..)

Martin Damm faces Toby Samuel in the quarter-finals of French Open ATP qualifying on clay on 18 May, with the match scheduled as best of five sets.

The market leans towards Damm, and the broader picture explains why. Samuel brings stronger return numbers in places, but Damm has the ranking edge, the previous win in this match-up and a more commanding service profile on clay.

FINISHED

Damm M.

0
2

Samuel T.

6-7

, 2-6

Damm holds the only rivalry win

Damm won their only previous meeting, beating Samuel in three sets at the Tbilisi Challenger on hard court on 20 May 2025. That match was tight, running to 35 games and two tie-breaks, but Damm's serve carried the clearest message: he held every service game and produced 25 aces. It gives him a useful reference point, though there is no clay meeting between them yet.

Damm M.

Samuel T.

Wins
1 0
First Serve Points Won
87 %75 %
Second Serve Points Won
45 %57 %
Return Points Won
33 %29 %
Break Points Converted
20 %0 %
Break Points Saved
0 %80 %

Clay numbers favour Damm's serve

On clay this season, Damm is 7-5 compared with Samuel's 4-4, and his service hold rate is stronger at 83% against 74%. That matters because clay qualifying can quickly become a test of repeat pressure; if Damm protects serve at that level, Samuel may need to be unusually efficient on return. Samuel does have the better return-games figure, winning 24% compared with Damm's 15%, so the contest is not one-way.

Recent form is level but different

Both players are 6-4 across their last 10 matches, yet the pattern is different. Damm has won four of his last six and recently came through a Bordeaux qualifying final before beating Grigor Dimitrov and Arthur Rinderknech, while Samuel has lost his last three after a stronger Challenger run earlier in the spring. The short-term rhythm is therefore slightly better for Damm.

Bookmakers side with Damm

Bookmakers price Damm at 1.5 against Samuel at 2.5, with first-set prices of 1.57 and 2.25. That supports the idea of Damm as the clearer favourite, although Samuel's recent first-set win rate of 70% keeps the opening phase interesting.

Damm M.

Samuel T.

Win Percentage
70 %60 %
Titles
0 1
Aces per match
9.3 2.1
Double Faults per match
3.8 2
First Serve Points Won
79 %66 %
Second Serve Points Won
53 %56 %
Return Points Won
32 %39 %
Break Points Converted
38 %45 %
Break Points Saved
66 %53 %

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Samuel's return threat is the warning

The key tension is straightforward: Damm has the heavier serve profile, while Samuel's best route is to make more return games competitive. Damm has held 84% of service games across his last 10 matches but has broken only 12% of the time, so a few loose games could keep Samuel close. Workload also slightly favours Damm, with 7 hours 36 minutes across his last five matches compared with Samuel's 9 hours 45 minutes.

Prediction

French Open ATP - QualificationPICK

Martin Damm

61%
Predicted Winner

Toby Samuel

The data points towards Damm, mainly because of his stronger clay service numbers, market support and the only previous win in the rivalry. Samuel's return game and first-set record add risk, so this is not a runaway call, but Damm has the more stable route through the match.

Odds

Odds:

To Win Match

Total Games

22.5

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