Ramba uchinyora ndima iyi - Pamitambo yeOlympic yeZhizha ya2012 muLondon, Agnel akahwina menduru nhatu: mbiri dzendarama neimwe yesirivha. Mumutambo wake wokutanga, Agnel akaedza kumhanyira kumashure mumutambo we4 × 100 metres freestyle relay kuhwina goridhe naAmaury Leveaux, Fabien Gilot, naClément Lefert. Agnel akakwanisa kuderedza nguva yaaiva nayo kusvika pamasekonzi 0,55 kuti asvike mamita 350. Mumamita 50 okupedzisira, Agnel akakunda Ryan Lochte wokuAmerica uye France yakakunda nenguva ya3:09:93 kuUnited States nguva ya3:10:38. Agnel akahwina nguva yakakurumidza yokuparadzanisa munda wose nenguva ye46.74, munhu oga kuti aputse 47 seconds. Zuva rakatevera, Agnel akawana menduru yake yechipiri yegoridhe mumamita mazana maviri akasununguka nenguva ye1: 43.14, yakakurumidza munhoroondo yekushambira yeFrance uye 1.79 masekondi pamberi pevakakunda menduru yesirivheri Sun Yang naPark Tae-hwan. Mumutambo wokupedzisira, Agnel akatungamirira kubva pakutanga kusvika pakupedzisira, achinyora nguva ye50.64 mumamita 100 okutanga uye 52.50 mumamita 100 okupedzisira. Nguva yake ye25.98 yemamita 50 okupedzisira yakanga iri yokukurumidza zvikuru mumunda. Agnel akawana menduru yake yokupedzisira, sirivha, mumutambo we4×200-meter freestyle relay shure kweUnited States naAmaury Leveaux, Grégory Mallet, naClément Lefert. Akanga ane nguva yakakurumidza kupatsanura munda mumagumo ane nguva ye1:43.24 sechitsiko cheanchor. Muchiitiko chake chokupedzisira, 100 metres freestyle
, Agnel akapedza wechina munguva yake yakanakisisa ye 47.84, 0.04 s yechipiri kunze kwemenduru. Sangano reEuropean Swimming Federation rakapa Agnel zita rekuti murume wekuEurope wekushambira wegore ra2012.