Taiyo Koga
Defender - Centre-Back
at Kashiwa Reysol
at Kashiwa Reysol
3,400 days · joined 2017-02-01
👕200+ Apps
Market value
€1.30m
Centre-Back Defender
Career snapshot
3
clubs played for
17/18
debut season
0.02
goals / match
Kashiwa Reysol
top club · 294 apps
Career highs
€1.30m
peak value · 2025
—
top transfer fee
2
best season · 2019
—
int'l / penalties
Born the same day
Shares 1998-10-28 · 6 players total
316Appearances
5Goals
5Assists
14Yellow cards
1Red cards
59Full matches (90′)
| Full name | Taiyo Koga |
|---|---|
| Name in home country | 古賀 太陽 |
| Date of birth | 1998-10-28 (27 yrs) |
| Place of birth | ---, Chiba, Japan |
| Citizenship |  Japan |
| Position | Defender - Centre-Back (main: Defender) |
| Foot | right |
| Height | 183.00 m |
| Current club | Kashiwa Reysol |
| Joined | 2017-02-01 |
| Contract expires | 2026-01-31 |
| Agent | STARBERA |
Jul 2025
2025 — Kashiwa Reysol
33 matches · 0 G · 0 A · across 2 competitions
Jul 2024
2024 — Kashiwa Reysol
41 matches · 1 G · 0 A · across 3 competitions
Jul 2023
2023 — Kashiwa Reysol
44 matches · 0 G · 1 A · across 3 competitions
Jul 2022
2022 — Kashiwa Reysol
37 matches · 0 G · 2 A · across 3 competitions
Jul 2021
2021 — Kashiwa Reysol
41 matches · 1 G · 0 A · across 3 competitions
Jul 2020
2020 — Kashiwa Reysol
38 matches · 0 G · 2 A · across 2 competitions
Jul 2019
2019 — Kashiwa Reysol
42 matches · 2 G · 0 A · across 3 competitions
Jan 2019
Transfer: Avispa Fukuoka → Kashiwa Reysol
18/19 · Return from loan
Jul 2018
2018 — Avispa Fukuoka
21 matches · 0 G · 0 A · across 1 competition
Jun 2018
Transfer: Kashiwa Reysol → Avispa Fukuoka
17/18 · Loan
Jul 2017
17/18 — Kashiwa Reysol
2 matches · 0 G · 0 A · across 1 competition
Jul 2017
2017 — Kashiwa Reysol
16 matches · 1 G · 0 A · across 3 competitions
Mar 2017
Injury: unknown
5 games missed
Feb 2017
Transfer: Reysol U18 → Kashiwa Reysol
16/17 · Transfer
Jul 2014
2014 — Kashiwa Reysol U18
1 matches · 0 G · 0 A · across 1 competition
Jan 1970
Peak market value: €1.30m
Highest valuation recorded in dataset
Minutes played by club
Kashiwa Reysol
100.0%
Avispa Fukuoka
0.0%
Kashiwa Reysol U18
0.0%
| Club | Seasons | First | Last | Matches | Goals | Assists | Minutes |
|---|---|---|---|---|---|---|---|
| Kashiwa Reysol | 9 | 17/18 | 2025 | 294 | 5 | 5 | 5,300 |
| Avispa Fukuoka | 1 | 2018 | 2018 | 21 | 0 | 0 | 0 |
| Kashiwa Reysol U18 | 1 | 2014 | 2014 | 1 | 0 | 0 | 0 |
Career trajectory — goals, assists & market value
Goals by season
Assists by season
| Season | Competition | Club | Matches | Goals | Assists | YC | RC | Minutes |
|---|---|---|---|---|---|---|---|---|
| 2025 | J. League Cup | Kashiwa Reysol | 5 | 0 | 0 | 1 | 0 | 0 |
| 2025 | J1 League | Kashiwa Reysol | 28 | 0 | 0 | 2 | 0 | 0 |
| 2024 | Emperor's Cup | Kashiwa Reysol | 3 | 0 | 0 | 0 | 0 | 0 |
| 2024 | J. League Cup | Kashiwa Reysol | 1 | 0 | 0 | 0 | 0 | 0 |
| 2024 | J1 League | Kashiwa Reysol | 37 | 1 | 0 | 2 | 1 | 3,323 |
| 2023 | Emperor's Cup | Kashiwa Reysol | 5 | 0 | 0 | 0 | 0 | 0 |
| 2023 | J. League Cup | Kashiwa Reysol | 6 | 0 | 0 | 0 | 0 | 0 |
| 2023 | J1 League | Kashiwa Reysol | 33 | 0 | 1 | 4 | 0 | 0 |
| 2022 | Emperor's Cup | Kashiwa Reysol | 3 | 0 | 0 | 0 | 0 | 0 |
| 2022 | J. League Cup | Kashiwa Reysol | 2 | 0 | 0 | 0 | 0 | 0 |
| 2022 | J1 League | Kashiwa Reysol | 32 | 0 | 2 | 2 | 0 | 0 |
| 2021 | Emperor's Cup | Kashiwa Reysol | 1 | 0 | 0 | 0 | 0 | 0 |
| 2021 | J. League Cup | Kashiwa Reysol | 3 | 1 | 0 | 0 | 0 | 193 |
| 2021 | J1 League | Kashiwa Reysol | 37 | 0 | 0 | 0 | 0 | 0 |
| 2020 | J. League Cup | Kashiwa Reysol | 5 | 0 | 0 | 0 | 0 | 0 |
| 2020 | J1 League | Kashiwa Reysol | 33 | 0 | 2 | 1 | 0 | 0 |
| 2019 | Emperor's Cup | Kashiwa Reysol | 1 | 0 | 0 | 0 | 0 | 0 |
| 2019 | J. League Cup | Kashiwa Reysol | 4 | 0 | 0 | 0 | 0 | 0 |
| 2019 | J2 League | Kashiwa Reysol | 37 | 2 | 0 | 2 | 0 | 1,604 |
| 2018 | J2 League | Avispa Fukuoka | 21 | 0 | 0 | 0 | 0 | 0 |
| 2017 | Emperor's Cup | Kashiwa Reysol | 2 | 1 | 0 | 0 | 0 | 180 |
| 2017 | J. League Cup | Kashiwa Reysol | 5 | 0 | 0 | 0 | 0 | 0 |
| 2017 | J1 League | Kashiwa Reysol | 9 | 0 | 0 | 0 | 0 | 0 |
| 2014 | U18 PL Championship | Kashiwa Reysol U18 | 1 | 0 | 0 | 0 | 0 | 0 |
| 17/18 | AFC Champions League | Kashiwa Reysol | 2 | 0 | 0 | 0 | 0 | 0 |
| Season | Date | From | To | Type | Market value | Fee |
|---|---|---|---|---|---|---|
| 16/17 | 2017-02-01 | Reysol U18 | Kashiwa Reysol | Transfer | 0 | — |
| 17/18 | 2018-06-18 | Kashiwa Reysol | Avispa Fukuoka | Loan | 125000 | — |
| 18/19 | 2019-01-31 | Avispa Fukuoka | Kashiwa Reysol | Return from loan | 400000 | — |
| Season | Injury | From | To | Days missed | Games missed |
|---|---|---|---|---|---|
| 16/17 | Torn muscle fiber in the adductor area | 2017-03-29 | 2017-04-26 | 29 | 5 |
Current€1.30m
Peak€1.30m
Low€50k
Δ since start+€1.25m
| Date | Value |
|---|---|
| Jan 1, 1970 | €1.30m |
| Jan 1, 1970 | €1.00m |
| Jan 1, 1970 | €1.00m |
| Jan 1, 1970 | €1.00m |
| Jan 1, 1970 | €1.00m |
| Jan 1, 1970 | €1.00m |
| Jan 1, 1970 | €900k |
| Jan 1, 1970 | €1.00m |
| Jan 1, 1970 | €900k |
| Jan 1, 1970 | €950k |
| Jan 1, 1970 | €725k |
| Jan 1, 1970 | €800k |
| Jan 1, 1970 | €400k |
| Jan 1, 1970 | €400k |
| Jan 1, 1970 | €125k |
| Jan 1, 1970 | €50k |
No national team data.
| Teammate | PPG played with | Joint goals | Minutes |
|---|---|---|---|
| Matheus Savio | 1 | 2 | 0 |
| Keiya Shiihashi | 1 | 0 | 0 |
| Cristiano | 2 | 0 | 0 |
| Naoki Kawaguchi | 1 | 0 | 0 |
| Ataru Esaka | 2 | 0 | 0 |
| Richardson | 2 | 0 | 0 |
| Takuma Ominami | 1 | 0 | 0 |
| Seung-gyu Kim | 1 | 0 | 0 |
| Michael Olunga | 2 | 2 | 0 |
| Yuki Muto | 1 | 0 | 0 |
| Takumi Kamijima | 1 | 0 | 0 |
| Yuji Takahashi | 1 | 0 | 0 |
Single-season peaks across competitions in this player's career.
Top goalscoring seasons
| Season | Competition | Club | Goals | Matches |
|---|---|---|---|---|
| 2019 | J2 League | Kashiwa Reysol | 2 | 37 |
| 2021 | J. League Cup | Kashiwa Reysol | 1 | 3 |
| 2017 | Emperor's Cup | Kashiwa Reysol | 1 | 2 |
Top assist seasons
| Season | Competition | Club | Assists | Matches |
|---|---|---|---|---|
| 2022 | J1 League | Kashiwa Reysol | 2 | 32 |
| 2020 | J1 League | Kashiwa Reysol | 2 | 33 |
| 2023 | J1 League | Kashiwa Reysol | 1 | 33 |
Every loan spell across this player's career.
| Season | Date | From | To | Type | Fee | Value at transfer |
|---|---|---|---|---|---|---|
| 18/19 | 2019-01-31 | Avispa Fukuoka | Kashiwa Reysol | Return from loan | — | €400k |
| 17/18 | 2018-06-18 | Kashiwa Reysol | Avispa Fukuoka | Loan | — | €125k |
Last 50 matches for Kashiwa Reysol while Taiyo Koga was at the club (joined 2019-01-31). The Availability column cross-references our injury database — matches inside a known injury window are flagged INJURED. Per-match goal attribution requires a paid feed (FBref/Sofascore) and isn't wired up yet.
| Date | Comp | Home | Score | Away | Availability |
|---|---|---|---|---|---|
| 2026-04-29 | JAP1 |
Nagoya Grampus | 1–2 | Kashiwa Reysol | Available |
| 2026-04-26 | JAP1 |
Kashiwa Reysol | 1–1 | Albirex Niigata | Available |
| 2026-04-20 | JAP1 |
Shonan Bellmare | 0–1 | Kashiwa Reysol | Available |
| 2026-04-11 | JAP1 |
FC Tokyo | 1–1 | Kashiwa Reysol | Available |
| 2026-04-06 | JAP1 |
Kashiwa Reysol | 1–0 | Gamba Osaka | Available |
| 2026-04-02 | JAP1 |
Kyoto Sanga FC | 1–1 | Kashiwa Reysol | Available |
| 2026-03-29 | JAP1 |
Kashiwa Reysol | 0–0 | Tokyo Verdy | Available |
| 2026-03-16 | JAP1 |
Sanfrecce Hiroshima | 1–1 | Kashiwa Reysol | Available |
| 2026-03-08 | JAP1 |
Kashiwa Reysol | 1–3 | Kashima Antlers | Available |
| 2026-03-02 | JAP1 |
Urawa Red Diamonds | 0–2 | Kashiwa Reysol | Available |
| 2026-02-26 | JAP1 |
Kashiwa Reysol | 2–1 | Cerezo Osaka | Available |
| 2026-02-22 | JAP1 |
Kashiwa Reysol | 1–1 | Kawasaki Frontale | Available |
| 2026-02-15 | JAP1 |
Avispa Fukuoka | 0–1 | Kashiwa Reysol | Available |
| 2025-06-30 | JAP1 |
Sagan Tosu | 1–4 | Kashiwa Reysol | Available |
| 2025-06-26 | JAP1 |
Kyoto Sanga FC | 2–2 | Kashiwa Reysol | Available |
| 2025-06-22 | JAP1 |
Kashiwa Reysol | 0–1 | Sanfrecce Hiroshima | Available |
| 2025-06-16 | JAP1 |
Gamba Osaka | 2–1 | Kashiwa Reysol | Available |
| 2025-06-02 | JAP1 |
Kashiwa Reysol | 0–2 | Avispa Fukuoka | Available |
| 2025-05-29 | JAP1 |
Yokohama F. Marinos | 4–0 | Kashiwa Reysol | Available |
| 2025-05-25 | JAP1 |
Kawasaki Frontale | 1–1 | Kashiwa Reysol | Available |
| 2025-05-19 | JAP1 |
Kashiwa Reysol | 2–1 | Hokkaido Consadole Sapporo | Available |
| 2025-05-15 | JAP1 |
Kashiwa Reysol | 2–1 | Shonan Bellmare | Available |
| 2025-05-11 | JAP1 |
FC Tokyo | 3–3 | Kashiwa Reysol | Available |
| 2025-05-06 | JAP1 |
Kashiwa Reysol | 1–2 | Kashima Antlers | Available |
| 2025-05-03 | JAP1 |
FC Machida Zelvia | 2–0 | Kashiwa Reysol | Available |
| 2025-04-28 | JAP1 |
Kashiwa Reysol | 1–1 | Sagan Tosu | Available |
| 2025-04-12 | JAP1 |
Kashiwa Reysol | 1–0 | Urawa Red Diamonds | Available |
| 2025-04-07 | JAP1 |
Tokyo Verdy | 1–1 | Kashiwa Reysol | Available |
| 2025-04-03 | JAP1 |
Kashiwa Reysol | 1–1 | Cerezo Osaka | Available |
| 2025-03-30 | JAP1 |
Albirex Niigata | 1–1 | Kashiwa Reysol | Available |
| 2025-03-16 | JAP1 |
Kashiwa Reysol | 0–2 | Nagoya Grampus | Available |
| 2025-03-09 | JAP1 |
Júbilo Iwata | 0–1 | Kashiwa Reysol | Available |
| 2025-03-02 | JAP1 |
Vissel Kobe | 0–1 | Kashiwa Reysol | Available |
| 2025-02-25 | JAP1 |
Kashiwa Reysol | 1–1 | Kyoto Sanga FC | Available |
| 2024-12-08 | JAP1 |
Hokkaido Consadole Sapporo | 1–0 | Kashiwa Reysol | Available |
| 2024-11-30 | JAP1 |
Kashiwa Reysol | 1–1 | Vissel Kobe | Available |
| 2024-11-09 | JAP1 |
Kashiwa Reysol | 1–1 | Albirex Niigata | Available |
| 2024-11-03 | JAP1 |
Avispa Fukuoka | 2–1 | Kashiwa Reysol | Available |
| 2024-10-23 | JAP1 |
Urawa Red Diamonds | 1–0 | Kashiwa Reysol | Available |
| 2024-10-19 | JAP1 |
Kashiwa Reysol | 1–1 | FC Machida Zelvia | Available |
| 2024-10-05 | JAP1 |
Kashiwa Reysol | 1–0 | Yokohama F. Marinos | Available |
| 2024-09-28 | JAP1 |
Cerezo Osaka | 0–0 | Kashiwa Reysol | Available |
| 2024-09-21 | JAP1 |
Kashima Antlers | 0–0 | Kashiwa Reysol | Available |
| 2024-09-14 | JAP1 |
Kashiwa Reysol | 0–2 | Júbilo Iwata | Available |
| 2024-08-31 | JAP1 |
Kashiwa Reysol | 2–3 | Tokyo Verdy | Available |
| 2024-08-25 | JAP1 |
Sanfrecce Hiroshima | 2–0 | Kashiwa Reysol | Available |
| 2024-08-17 | JAP1 |
Shonan Bellmare | 1–2 | Kashiwa Reysol | Available |
| 2024-08-11 | JAP1 |
Kashiwa Reysol | 0–0 | Gamba Osaka | Available |
| 2024-07-20 | JAP1 |
Kashiwa Reysol | 2–3 | Kawasaki Frontale | Available |
| 2024-07-14 | JAP1 |
Nagoya Grampus | 2–1 | Kashiwa Reysol | Available |
Teams faced most often by Taiyo Koga's clubs during seasons he played in those competitions (team-level results, not personal head-to-head goals — see disclaimer above).
| Opponent | P | W | D | L | GF | GA | GD | Win % |
|---|---|---|---|---|---|---|---|---|
| Nagoya Grampus | 11 | 2 | 2 | 7 | 6 | 15 | -9 | 18% |
| Kawasaki Frontale | 11 | 0 | 5 | 6 | 9 | 17 | -8 | 0% |
| Kashima Antlers | 11 | 3 | 2 | 6 | 14 | 16 | -2 | 27% |
| Urawa Red Diamonds | 11 | 3 | 2 | 6 | 10 | 18 | -8 | 27% |
| Gamba Osaka | 11 | 3 | 3 | 5 | 11 | 12 | -1 | 27% |
| Sanfrecce Hiroshima | 11 | 2 | 3 | 6 | 7 | 14 | -7 | 18% |
| FC Tokyo | 11 | 3 | 4 | 4 | 15 | 20 | -5 | 27% |
| Shonan Bellmare | 11 | 8 | 1 | 2 | 22 | 14 | +8 | 73% |
| Cerezo Osaka | 11 | 3 | 5 | 3 | 7 | 9 | -2 | 27% |
| Sagan Tosu | 10 | 2 | 3 | 5 | 13 | 18 | -5 | 20% |
| Hokkaido Consadole Sapporo | 10 | 6 | 0 | 4 | 22 | 16 | +6 | 60% |
| Yokohama F. Marinos | 10 | 3 | 2 | 5 | 13 | 20 | -7 | 30% |
Auto-detected milestones based on cumulative career totals.
| Season / Year | Milestone | Date |
|---|---|---|
| 17/18 | Senior debut season | |
| 2017 | First senior goal |
Yellow / second-yellow / red cards per season. Only seasons with at least one card are shown.
| Season | Matches | Mins | YC | 2nd YC | RC | Cards / 90′ |
|---|---|---|---|---|---|---|
| 2025 | 33 | 0 | 3 | 0 | 0 | 0 |
| 2024 | 41 | 3,323 | 2 | 0 | 1 | 0.08 |
| 2023 | 44 | 0 | 4 | 0 | 0 | 0 |
| 2022 | 37 | 0 | 2 | 0 | 0 | 0 |
| 2020 | 38 | 0 | 1 | 0 | 0 | 0 |
| 2019 | 42 | 1,604 | 2 | 0 | 0 | 0.11 |
Output by competition
Career goals and assists broken down by tournament.
J2 League
58 apps
2 G
0 A
J1 League
209 apps
1 G
5 A
J. League Cup
31 apps
1 G
0 A
Emperor's Cup
15 apps
1 G
0 A
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Frequently asked about Taiyo Koga
Who is Taiyo Koga?
Taiyo Koga is a Japan professional footballer who plays as a centre-back for Kashiwa Reysol.
How old is Taiyo Koga?
Taiyo Koga is 27 years old. He was born on October 28, 1998 in ---, Chiba.
What position does Taiyo Koga play?
Taiyo Koga plays as a centre-back (Defender - Centre-Back).
What club does Taiyo Koga play for?
Taiyo Koga currently plays for Kashiwa Reysol.
How many career goals has Taiyo Koga scored?
Across all senior club competitions in our dataset, Taiyo Koga has scored 5 goals in 316 appearances.
What is Taiyo Koga's market value?
Taiyo Koga's most recent reported market value is €1.30m.