ATP tennis predict — Garrett Johns vs Pedro Martinez

Challenger Hard Kingston challenger · R16 18:30

Predicted probability

Garrett Johns

USA

50.88%

Pedro Martinez

Spain

49.12%

Average Odds

3.13 / 1.31

Market probability

29.50% / 70.50%

Why This Prediction?

This is a very close match — there is no significant statistical edge for either player.

Player Comparison

1575.7 Elo 1605.5

1576.6 Elo (surface) 1515.0

61 Wins (Challenger) 156

36 Wins (surface) 36

9 Last 15 form 7

0 Head-to-head wins 0

1.201 Dominance ratio 1.058

390 Rank 151

25.7 Age 29.3

right Hand right

Performance vs. the Odds

Career record grouped by how big a favorite the market made each player, based on their average odds.

Garrett Johns

Heavy favorite (odds below 1.30) 3W–0L · 100.0%

Favorite (odds 1.30-1.80) 2W–1L · 66.7%

Even match (odds 1.80-2.20) 0W–1L · 0.0%

Underdog (odds 2.20-4.00) 4W–5L · 44.4%

Heavy underdog (odds above 4.00) 0W–1L · 0.0%

17 matches with market odds since 2026-06-01.

Pedro Martinez

Heavy favorite (odds below 1.30) 3W–1L · 75.0%

Favorite (odds 1.30-1.80) 9W–5L · 64.3%

Even match (odds 1.80-2.20) 2W–2L · 50.0%

Underdog (odds 2.20-4.00) 1W–4L · 20.0%

Heavy underdog (odds above 4.00) 0W–1L · 0.0%

28 matches with market odds since 2026-06-01.

Serve & Return

Serve and return win rates from each player's last 10 matches at the selected level.

Garrett Johns Pedro Martinez

1st Serve In %

49.7%

67.7%

1st Serve Points Won %

73.5%

67.8%

2nd Serve Points Won %

49.4%

58.6%

Return Points Won vs 1st Serve %

23.7%

33.7%

Return Points Won vs 2nd Serve %

46.3%

56.5%

Aces per Service Game

0.57

0.40

Double Faults per Service Game

0.30

0.15

Based on each player's last 10 ATP/Grand Slam matches.

1st Serve In %

57.2%

65.8%

1st Serve Points Won %

67.2%

63.9%

2nd Serve Points Won %

54.0%

43.0%

Return Points Won vs 1st Serve %

34.5%

33.2%

Return Points Won vs 2nd Serve %

53.1%

56.8%

Aces per Service Game

0.30

0.10

Double Faults per Service Game

0.19

Based on each player's last 10 Challenger matches.

Break Point Performance

How each player handles the biggest points - break points saved serving, and converted returning - from their last 10 matches at the selected level.

Garrett Johns Pedro Martinez

Break Points Saved %

53.6%

64.2%

Break Points Converted %

40.9%

49.2%

Based on each player's last 10 ATP/Grand Slam matches.

Break Points Saved %

62.5%

55.7%

Break Points Converted %

45.8%

42.0%

Based on each player's last 10 Challenger matches.

Head-to-Head

Garrett Johns 0 – 0 Pedro Martinez

Hard Kingston challenger · 2026-08-19

R16

Pedro Martinez #151

Garrett Johns #390

6-4 6-1

2 Aces 2

0 Double Faults 0

65 Service Points 41

43 First Serve In 24

24 First Serve Won 19

7 Second Serve Won 11

4 Break Points Saved 0

9 Break Points Faced 1

- Winners -

- Unforced Errors -

1.3 Average Odds 3.1

Garrett Johns vs Pedro Martinez — Prediction