Rira Kosaka vs Natsuho Arakawa — W50 Nanao Qualifying Round of 32
W50 Nanao · ITF · Qualifying Round of 32
2 — 1
Sets
Monday, 21 September 2026 ·
carpet
Kosaka R.3-6 6-3 6-2
Arakawa N.
Kosaka R.
3662
Arakawa N.
6321
Rira Kosaka defeated Natsuho Arakawa 3-6, 6-3, 6-2 in the qualifying round 3 of the W50 Nanao tournament. Kosaka and Arakawa were evenly matched in aces, double faults, and service breaks. Kosaka converted her only break point opportunity, while Arakawa converted 50 percent of her break points.
Generated automatically from Umpiry match data.
Momentum · Final
Kosaka R.12/13
Arakawa N.10/13
hold to 0/15to 30to 40 / deucebroken
Key context
- Match story: Rira Kosaka dropped the opening set before beating Natsuho Arakawa 3–6 6–3 6–2.
Head to head
No previous meetings on record.
Statistics
This season1st serve in·Slight edge
54%
65%
1st serve points won·Slight edge
54%
63%
2nd serve points won·Slight edge
45%
40%
Service points won·Slight edge
50%
55%
Return points won·Even
44%
44%
Break points saved·Slight edge
47%
54%
Aces / match·Clear edge
0.3
2.5
Double faults / match·Slight edge
6.7
6.0
Averages over each player's completed matches in the selected window (3 vs 12). ATP, WTA & Challenger.
Umpiry Score
Pre-match5.4
Clear underdogUmpiry ScorePartial · surface data limited5.7
Slight disadvantageUmpiry ScorePartial · surface data limitedForm & Matchup
5.0No prior meetings
H2H5.0No prior meetings
0.0Lost last 2
Win streak0.0
Fatigue & Travel
8.0Hard → Carpet
Surface transition8.0Hard → Carpet
Context
5.0Didn't play here last year
Defending pts5.0Didn't play here last year
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Conditions
Weather
26°CPartly cloudy
Wind 15 km/hHumidity 78%