# 2020 Oracle Challenger Series – Newport Beach – Men's singles

Taylor Fritz was the defending champion but lost in the third round to Mitchell Krueger.
Thai-Son Kwiatkowski won the title after defeating Daniel Elahi Galán 6–4, 6–1 in the final.

## Seeds

All seeds receive a bye into the second round.
* Taylor Fritz (third round)
* Frances Tiafoe (third round)
* Miomir Kecmanović (third round)
* Steve Johnson (semifinals)
* Andreas Seppi (second round)
* Brayden Schnur (third round)
* Marcos Giron (second round)
* Jason Jung (second round)
* Mackenzie McDonald (second round)
* Bradley Klahn (quarterfinals)
* Emilio Gómez (second round)
* Marius Copil (second round)
* Mitchell Krueger (semifinals)
* Rudolf Molleker (second round)
* Denis Istomin (quarterfinals)
* Peter Polansky (second round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final |
| 13 | Mitchell Krueger | 6 | 6$^5$ | 6 | | | | | | | | |
| PR | Raymond Sarmiento | 3 | 7$^7$ | 3 | | | | | | | | |
| PR | Raymond Sarmiento | 3 | 7$^7$ | 3 | 13 | Mitchell Krueger | 2 | 6$^3$ | | | | |
| | | | | | | Daniel Elahi Galán | 6 | 7$^7$ | | | | |
| | Daniel Elahi Galán | 4 | 7$^7$ | 6 | | Daniel Elahi Galán | 6 | 7$^7$ | | | | |
| | Christopher Eubanks | 6 | 6$^5$ | 3 | | | | | | | | |
| | Christopher Eubanks | 6 | 6$^5$ | 3 | | | | | | Daniel Elahi Galán | 4 | 1 |
| | | | | | | | | | | Thai-Son Kwiatkowski | 6 | 6 |
| 10 | Bradley Klahn | 4 | 2 | | | | | | | | | | Thai-Son Kwiatkowski | 6 | 6 |
| 4 | Steve Johnson | 6 | 6 | | | | | | | | | |
| 4 | Steve Johnson | 6 | 6 | | 4 | Steve Johnson | 6 | 6$^4$ | 1 | | | |
| | | | | | | Thai-Son Kwiatkowski | 3 | 7$^7$ | 6 | | | |
| | Thai-Son Kwiatkowski | 7$^8$ | 6 | | | Thai-Son Kwiatkowski | 3 | 7$^7$ | 6 | | | |
| 15 | Denis Istomin | 6$^6$ | 4 | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1/WC | T Fritz | 6 | 6 | | | | | | | | | | | |
| WC | G Nanda | 4 | 0 | | Q | A Velotti | 3 | 3 | | | | | | | | | | | |
| Q | A Velotti | 6 | 6 | | | | | | | 1/WC | T Fritz | 4 | 6 | 3 | | | | | |
| | D Young | 1 | 7$^7$ | 6 | | | | | | 13 | M Krueger | 6 | 3 | 6 | | | | | |
| | B Nakashima | 6 | 6$^5$ | 4 | | D Young | 6 | 1 | 4 | | | | | | | | | | |
| | | | | | 13 | M Krueger | 3 | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 13 | M Krueger | 6 | 6$^5$ | 6 |
| | | | | | | | | | | | | | | | PR | R Sarmiento | 3 | 7$^7$ | 3 |
| | | | | | 9 | M McDonald | 5 | 4 | | | | | | | | | | | |
| | K King | 4 | 5 | | PR | R Sarmiento | 7 | 6 | | | | | | | | | | | |
| PR | R Sarmiento | 6 | 7 | | | | | | | PR | R Sarmiento | 7 | 7$^7$ | | | | | | |
| | JC Aragone | 6 | 6 | | | | | | | | JC Aragone | 5 | 6$^3$ | | | | | | |
| | K Uchida | 1 | 3 | | | JC Aragone | 6 | 7$^7$ | | | | | | | | | | | |
| | | | | | 5 | A Seppi | 2 | 6$^2$ | | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 3 | M Kecmanović | 6 | 4 | 6 | | | | | | | | | |
| | Yo Watanuki | 6 | 6 | | | Yo Watanuki | 1 | 6 | 3 | | | | | | | | | |
| | S Mansouri | 3 | 1 | | | | | | | 3 | M Kecmanović | 3 | 7$^8$ | 3 | | | | |
| | DE Galán | 6 | 3 | 6 | | | | | | | DE Galán | 6 | 6$^6$ | 6 | | | | |
| | J Ward | 4 | 6 | 2 | | DE Galán | 6 | 6 | | | | | | | | | | |
| | | | | | 14 | R Molleker | 3 | 1 | | | | | | | | | | |
| | | | | | | | | | | | | | | | DE Galán | 4 | 7$^7$ | 6 |
| | | | | | | | | | | | | | | | C Eubanks | 6 | 6$^5$ | 3 |
| | | | | | 12 | M Copil | 6$^3$ | 4 | | | | | | | | | | |
| WC | Mi Redlicki | 7 | 6 | | WC | Mi Redlicki | 7$^7$ | 6 | | | | | | | | | | |
| | R Harrison | 5 | 2 | | | | | | | WC | Mi Redlicki | 6 | 1 | 4 | | | | |
| Q | A Sarkissian | 4 | 5 | | | | | | | | C Eubanks | 3 | 6 | 6 | | | | |
| | C Eubanks | 6 | 7 | | | C Eubanks | 6 | 7 | | | | | | | | | | |
| | | | | | 8 | J Jung | 4 | 5 | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 7 | M Giron | 4 | 6 | 6$^5$ | | | | | | | | | |
| | S Ehrat | 3 | 6 | 2 | | S Korda | 6 | 3 | 7$^7$ | | | | | | | | | |
| | S Korda | 6 | 4 | 6 | | | | | | | S Korda | 7 | 3 | 4 | | | | |
| | E Escobedo | 6 | 7 | | | | | | | 10 | B Klahn | 5 | 6 | 6 | | | | |
| | T Bellucci | 1 | 5 | | | E Escobedo | 5 | 1 | | | | | | | | | | |
| | | | | | 10 | B Klahn | 7 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 10 | B Klahn | 4 | 2 |
| | | | | | | | | | | | | | | | 4 | S Johnson | 6 | 6 |
| | | | | | 16 | P Polansky | 7$^7$ | 6$^6$ | 4 | | | | | | | | | |
| WC | U Blanch | 2 | 5 | | | A Vukic | 6$^5$ | 7$^8$ | 6 | | | | | | | | | |
| | A Vukic | 6 | 7 | | | | | | | | A Vukic | 6$^6$ | 7$^7$ | 6$^4$ | | | | |
| | R Quiroz | 5 | | | | | | | | 4 | S Johnson | 7$^8$ | 6$^4$ | 7$^7$ | | | | |
| | G Escobar | 1$^r$ | | | | R Quiroz | 3 | 2 | | | | | | | | | | |
| | | | | | 4 | S Johnson | 6 | 6 | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 6 | B Schnur | 6 | 6 | | | | | | | | | |
| M Cressy | 6 | 6 | | | M Cressy | 4 | 2 | | | | | | | | | |
| G Oliveira | 1 | 4 | | | | | | 6 | B Schnur | 6 | 3 | 2 | | | | |
| C Altamirano | 1 | 3 | | | | | | | T-S Kwiatkowski | 3 | 6 | 6 | | | | |
| T-S Kwiatkowski | 6 | 6 | | | T-S Kwiatkowski | 7 | 6 | | | | | | | | | |
| | | | | 11 | E Gómez | 5 | 3 | | | | | | | | | |
| | | | | | | | | | | | | | | T-S Kwiatkowski | 7$^8$ | 6 |
| | | | | | | | | | | | | | 15 | D Istomin | 6$^6$ | 4 |
| | | | | 15 | D Istomin | 7$^8$ | 6 | | | | | | | | | |
| D Popko | 6$^3$ | 6 | 4 | | S Bangoura | 6$^6$ | 4 | | | | | | | | | |
| S Bangoura | 7$^7$ | 4 | 6 | | | | | 15 | D Istomin | 6 | 6 | | | | | |
| R Cid Subervi | 6$^7$ | 2 | | | | | | 2/WC | F Tiafoe | 3 | 2 | | | | | |
| A Tabilo | 7$^9$ | 6 | | | A Tabilo | 4 | 2 | | | | | | | | | |
| | | | | 2/WC | F Tiafoe | 6 | 6 | | | | | | | | | |