| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2022 | J3-League | 20 | 1694 | 3 | 3 | 0.32 | 0 |
| 2023 | J2-League | 7 | 550 | 0 | 1 | 0.16 | — |
| 2024 | J2-League | 12 | 395 | 0 | 0 | 0 | — |
| 2025 | J1 League | 2 | 25 | 0 | 0 | — | 6.44 |
Domestic league competitions only (SportMonks sub_type='domestic'); national-team, continental and cup competitions are excluded. Classification resolved by league id against the canonical leagues index. G+A/90 computed from minutes actually played.
Cohort: 67 J2-League defenders, 2023, min. 450 minutes. Computed by ranking the full league corpus, not taken from any feed.
Figures computed from the GioScore season-stats database · as of 2026-07-14
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Giravanz Kitakyushu | 3 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
 Yokohama | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Kataller Toyama | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
 Mito Hollyhock | 2 | 0 | 2 | 0 | 0 | 0 | 1 | 0 |
 YSCC | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 0 |
 Urawa Reds | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Yokohama F. Marinos | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 FC Tokyo | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Cerezo Osaka | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Gifu | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Vissel Kobe | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 JEF United | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Tokushima Vortis | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
 Fagiano Okayama | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Kamatamare Sanuki | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 |
 Matsumoto Yamaga | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Oita Trinita | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Gamba Osaka | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Montedio Yamagata | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Imabari | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
In the 2024 J2-League, Riku Saga played 12 games (395 minutes) without a direct goal contribution. Measured against a 67-strong pool of J2-League defenders (2023, min. 450 minutes), he ranks in the 87th percentile by goal involvements per 90 — above the cohort median, and 17th of 67 for goals scored.
His league record spans 4 seasons (2022–2025) across 2 clubs.
