In its 17th season Second League was played with 32 teams, 16 in two groups: Group A and Group B. Group winners promoted to First League 1980–81. Runners-up played a promotion game to determine the third club to be promoted to first league. No teams relegated because next year second and third leagues merged and third league abandoned. Mersin İY became 1st in Group A with 17 wins and 38 goals.
Mersin İY's league performance in Second League Group A in 1979–80 season is shown in the following table. Note: Won, drawn and lost points are 2, 1 and 0. F belongs toMİY and A belongs to corresponding team for both home and away matches. No relegation.
Results by round
Results of games MİY played in 1979–80 Second League Group A by rounds:
First half
Mid-season
In the mid-season, MİY played a jubilee match for captain İbrahim against Galatasaray on 13 January 1980 at Tevfik Sırrı Gür Stadium. İbrahim left jersey no. 9 to Mücellip on 10th minute.
13.01.1980 - MİY-Galatasaray: 0–1.
Second half
Championship match
Mersin İdmanyurdu lost the second league championship game against Kocaelispor, the Group B's winner.
was played for the 18th season as Türkiye Kupası by 123 teams. First four elimination rounds were played in one-leg elimination system. Fifth and sixth elimination rounds and finals were played in two-legs elimination system. Mersin İdmanyurdu participated in 1979–80 Turkish Cup and was eliminated at round 3 by MKE Kırıkkalespor. Kırıkkalespor was eliminated at round 5. Altay won the Cup for the 2nd time and became eligible for 1981–82 European Cup Winners' Cup.
Cup track
The drawings and results Mersin İdmanyurdu followed in 1979–80 Turkish Cup are shown in the following table.
Round
Own League
Opponent's League
Opponent
Score
Result
Round 3
Second League Group A
Second League Group A
MKE Kırıkkalespor
H
0–0
Eliminated
Note: In the above table 'Score' shows For and Against goals whether the match played at home or not.
Game details
Mersin İdmanyurdu 1979–80 Turkish Cup game reports is shown in the following table. Kick off times are in EET and EEST. Source: 1979–80 Turkish Cup pages.
Management
Club management
Hadi Doğan was club president.
Coaching team
1979–80 Mersin İdmanyurdu head coaches:
Head Coach
Period
Notes
Suat Mamat
01.08.1979 – 31.05.1980
Note: Only official games were included.
1979–80 squad
Stats are counted for 1979–80 Second League matches and 1979–80 Turkish Cup matches. In the team rosters five substitutes were allowed to appear, two of whom were substitutable. Only the players who appeared in game rosters were included and listed in the order of appearance.
Sources: 1979–80 season squad data from maçkolik com, Milliyet, and Cem Pekin Archives. Transfer news from Milliyet:
Transfers in: Raşit.
MİY forward İbrahim ended his player career in the mid-season. In his jubilee match MİY lost to Galatasaray. This match was also a preparation match for the teams:
Mid season friendly game - 13.01.1980 - MİY-Galatasaray: 0-1. On 5th minute İbrahim left his place and jersey no. 9 to Mücellip.
