Junri Namigata defeated Chin Wei Chan 6-3 3-6 7-6 in the Wenshan 50K round of 32 on hard. The upset overturned the form book — Chin Wei Chan came in leading the head-to-head 3–2. Junri Namigata narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-07-08 | Beijing 75K | R32 | hard | Chin Wei Chan | 7-5 6-2 |
| 2010-11-01 | Taipei 100K | R32 | carpet | Junri Namigata | 6-3 4-6 6-4 |
| 2006-05-08 | Fukuoka 50K | R16 | grass | Chin Wei Chan | 6-3 6-2 |
| 2005-06-06 | Seoul 25K | R16 | hard | Junri Namigata | 7-6(4) 6-4 |
| 2004-04-19 | Hamanako 10K | SF | carpet | Chin Wei Chan | 6-3 6-4 |
Averages over each player's completed matches in the selected window (195 vs 14). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About