Hiromasa Koyama vs Qian Sun — M15 Wuning Round of 16
Qian Sun defeated Hiromasa Koyama in the Round of 16 at the M15 Wuning tournament, winning in straight sets 6-4, 6-4 on hard courts. Qian Sun hit 8 aces and 5 double faults, while converting 67% of break points and securing 2 service breaks. Hiromasa Koyama had no aces and no service breaks, with 3 double faults.
Generated automatically from Umpiry match data.
Key context
- Match story: Qian Sun edged a tight contest from start to finish — 6–4 6–4.
How the match was decided
Auto-generatedSun Q. took it in straight sets.
- 1st-serve points wonSun Q. 79% · Koyama H. 76%
- AcesSun Q. 8 · Koyama H. 0
- Double faultsSun Q. 5 · Koyama H. 3
Match momentum
Whole matchKoyama H.Sun Q.Late momentumSun Q.24
6Last 12 points6
21Last 3 games18
1/12Break points1/1
Break of serve
Serve & return performance
Key performance gapsAcesSun Q. served 8 aces, Koyama H. 0. Largest performance gap of the match.+8Koyama H.0Sun Q.8
Common opponents
0 shared · last 12 monthsNo common opponents in the last 12 months. Surface form and ELO carry more weight here.
Draw
Closing odds
Next up
Player context
Before the matchKoyama H.Sun Q.1 521ELO1 5261 520Hard ELO1 5236–0Last 105–518Age25
Cite this
Qian Sun beat Hiromasa Koyama 4-6 4-6. Umpiry, "Hiromasa Koyama vs Qian Sun — M15 Wuning Round of 16", https://umpiry.com/match/2026-09-03/koyama-vs-sun-m15-wuning-r16?utm_source=cite (as of 3 September 2026).