| 1998-12-20 | LeccevNapoliSerie B · Italy | 3–1 | Serie B · Italy |
| 1998-12-13 | NapolivRavennaSerie B · Italy | 2–4 | Serie B · Italy |
| 1998-12-05 | NapolivTorinoSerie B · Italy | 0–0 | Serie B · Italy |
| 1998-11-29 | ChievovNapoliSerie B · Italy | 0–2 | Serie B · Italy |
| 1998-11-22 | NapolivGenoaSerie B · Italy | 2–1 | Serie B · Italy |
| 1998-11-15 | BresciavNapoliSerie B · Italy | 0–0 | Serie B · Italy |
| 1998-11-08 | NapolivF. AndriaSerie B · Italy | 1–1 | Serie B · Italy |
| 1998-11-01 | TernanavNapoliSerie B · Italy | 2–1 | Serie B · Italy |
| 1998-10-18 | NapolivTrevisoSerie B · Italy | 1–1 | Serie B · Italy |
| 1998-10-11 | CesenavNapoliSerie B · Italy | 0–0 | Serie B · Italy |
| 1998-10-03 | NapolivAtalantaSerie B · Italy | 0–0 | Serie B · Italy |
| 1998-09-27 | ReggianavNapoliSerie B · Italy | 0–1 | Serie B · Italy |
| 1998-09-20 | NapolivRegginaSerie B · Italy | 1–1 | Serie B · Italy |
| 1998-09-12 | PescaravNapoliSerie B · Italy | 0–1 | Serie B · Italy |
| 1998-09-06 | NapolivCosenzaSerie B · Italy | 1–2 | Serie B · Italy |
| 1998-05-16 | NapolivBariSerie A · Italy | 2–2 | Serie A · Italy |
| 1998-05-10 | BresciavNapoliSerie A · Italy | 2–1 | Serie A · Italy |
| 1998-05-03 | NapolivUdineseSerie A · Italy | 1–3 | Serie A · Italy |
| 1998-04-26 | MilanvNapoliSerie A · Italy | 0–0 | Serie A · Italy |
| 1998-04-19 | NapolivSampdoriaSerie A · Italy | 0–2 | Serie A · Italy |
| 1998-04-11 | ParmavNapoliSerie A · Italy | 3–1 | Serie A · Italy |
| 1998-04-04 | NapolivPiacenzaSerie A · Italy | 1–2 | Serie A · Italy |
| 1998-03-29 | FiorentinavNapoliSerie A · Italy | 4–0 | Serie A · Italy |
| 1998-03-22 | NapolivLecceSerie A · Italy | 2–4 | Serie A · Italy |
| 1998-03-14 | JuventusvNapoliSerie A · Italy | 2–2 | Serie A · Italy |
| 1998-03-08 | NapolivBolognaSerie A · Italy | 0–0 | Serie A · Italy |
| 1998-02-28 | IntervNapoliSerie A · Italy | 2–0 | Serie A · Italy |
| 1998-02-22 | NapolivRomaSerie A · Italy | 0–2 | Serie A · Italy |
| 1998-02-15 | AtalantavNapoliSerie A · Italy | 1–0 | Serie A · Italy |
| 1998-02-11 | NapolivVicenzaSerie A · Italy | 2–0 | Serie A · Italy |
| 1998-02-08 | EmpolivNapoliSerie A · Italy | 5–0 | Serie A · Italy |
| 1998-02-01 | NapolivLazioSerie A · Italy | 0–0 | Serie A · Italy |
| 1998-01-25 | BarivNapoliSerie A · Italy | 2–0 | Serie A · Italy |
| 1998-01-18 | NapolivBresciaSerie A · Italy | 0–3 | Serie A · Italy |
| 1998-01-11 | UdinesevNapoliSerie A · Italy | 1–1 | Serie A · Italy |
| 1998-01-04 | NapolivMilanSerie A · Italy | 1–2 | Serie A · Italy |