Nineteen-year-old home hope Filippo Tortu finished third in front of Baker's fellow American Christian Coleman, the world silver medallist and world indoor champion.

Elsewhere on a night of enthrallingly competitive events, South Africa's world and defending Diamond League champion Luvo Manyonga added two centimetres to his 2018 world best with an effort of 8.58m, high jumper Mariya Lasitskene regained her place at the top of this season's listings with 2.02m, and Qatar's Abderrahman Samba overtook world 400m hurdles champion Karsten Warholm to win in an Asian and Diamond League record of 47.48.

A crowd estimated at 30,000 had been hoping Tortu, who had lowered his personal best to 10.03 the previous week, could beat the 39-year-old national record of 10.01 set in the thin air of Mexico by the sprinter after whom this annual Golden Gala meeting is named, Pietro Mennea.

Tortu’s powerful finish, as he passed Coleman in the final strides, raised home hopes - but a sigh went out when the name of France’s Jimmy Vicaut came up on the scoreboard with a time of 10.02, with the taller Italian’s name soon arriving below with a time of 10.40.

Coleman, fifth in 10.06, appeared to be slowing slightly at the line and grimacing.

Baker, who beat Coleman in last Saturday's (May 26) race at the Eugene Diamond League meeting in a time of 9.78, with a following wind of 2.4 metres per second, said: "Today was definitely a confidence booster.

"To have two wins in two races under my belt is great but I know I have to keep working hard."

Manyonga triumphed in a memorable event that saw seven jumpers surpass eight metres.

Second place went to the 20-year-old Cuban Juan Miguel Echevarria, who beat Manyonga to the world indoor title in March and who snatched the lead in the second round with a personal best of 8.53, only to see the South African rise to that challenge shortly afterwards.

Manyonga's compatriot Ruswahl Samaai finished third with an effort of 8.34 in what was surely one of most extraordinary second rounds of long jumping ever witnessed.

Lasitskene remains apparently invincible in the women's high jump. 

The Russian world champion secured a 40th consecutive victory since being re-admitted to the sport as an Authorised Neutral Athlete last year.

In her normal imperturbable fashion, she defeated the field with a first-time clearance of 1.97, then cleared 2.02 before making three unsuccessful attempts at 2.04 - two centimetres below her personal best.

But she had the satisfaction of replacing the Olympic heptathlon champion Nafi Thiam, who jumped 2.01 at Gotzis last weekend, at the head of the 2018 rankings.

Samba produced a superbly judged performance to overtake his fellow 22-year-old over the final flight of barriers.

But the Norwegian's bold early effort earned him his first sub-48sec race as he took 0.40sec off his national record, clocking 47.82.

Samba - born in the northwest African state of Mauritania but granted an allegiance transfer since 2016 - came through smoothly in lane four, surpassing the time of 47.57 clocked at his home Diamond League meeting in Doha, with which he already topped the 2018 world lists.

"It's a big feeling for me to break not only my personal best, but also the Asian record, the national record and the Diamond League record,"  Samba said. 

"I now hope every race will be like this.

"I say thank you to my rivals for pushing me. 

"I told Karsten thank you especially.

"We are now giving the 400m hurdles the attention it deserves."

The next race on the track - the women's 3000m steeplechase - was equally stirring as world champion Emma Coburn, who had led narrowly at the bell, stumbled and fell as she took the final water jump flanked by Kenyan rivals Celliphine Chespol and 2015 world champion Hyvin Kiyeng.

Kiyeng proceeded to win in a meeting record and 2018 fastest time of 9min 4.96sec, with the 19-year-old prodigy Chespol, who had had to chart a quick route around her fallen opponent, second in a season's best of 9:05.14.

The gutsy American picked herself back up and drove on, but was passed by another Kenyan, Norah Jeruto, who was third in 9:07.17 with a shaken Coburn finishing fourth in 9:08.13.

The men's 800m race was also a compelling one as Kenya's Jonathan Kitilit, a clear leader at 500m as the pacemaker Bram Som moved over after taking the field through 400m in 51.24, pushed on strongly with a strung-out field appearing to struggle in his wake.

However, his compatriot Wyclife Kinyamal was a keen and powerful hunter, and as the race moved into the final ten metres the 20-year-old Commonwealth champion had his prey, moving past to win in 1:44.65, with Kitilit having to settle for third in 144.78 as a third Kenyan, Ferguson Rotich, came through in 1:44.74.

It was almost an exact replica of the finish that had played out earlier this month in the Shanghai Diamond League, when Kinyamal had come through in the final 20m to win by 0.04sec before declaring memorably: "We were fighting for the last 100 metres, but I was stronger and I knew it. 

"I come from the same village as Rudisha, he was always my example. Now I take over."

Kinyamal is certainly ticking all the boxes right now.

The men's 1,500m saw Kenya's world silver medallist Timothy Cheruyiot, winner of the Shanghai Diamond League 1,500m and the Bowerman Mile at the Eugene Diamond League, maintain bragging rights as he won in 3min 31.22sec, the fastest of the season so far.

The 22-year-old Cheruyiot finished well clear of his training partner Elijah Manangoi, who took gold to his silver in London last summer and finished here in a season’s best of 3:33.79.

Ethiopia’s world indoor champion Samuel Tefara took third place in 3:34.84.

Kenya’s world and Olympic 3,000m steeplechase champion Conseslus Kipruto, surprisingly beaten by compatriot Benjamin Kigen at the Eugene Diamond League, made sure it didn’t happen again in what was a non-Diamond League race, although it was a close run thing.

Kipruto pulled clear on the final lap to win in 8min 4.40sec, the fastest run so far this year, but Kigen maintained his rising reputation as he took second place in 8:10.01 despite a stumble at the last hurdle after which he looked briefly behind him before resuming his forward momentum.