Racecast

Isaac Bos

Kalamazoo Christian (MI) · 12 · SACMI D3 · Compare head to head

what a rating means
100 is the average runner in the athlete's pool; a rating of 133 means 33% faster than that average runner. Ratings are distance-normalised and course-adjusted, so a hard course and a fast track land on one number. Each pool (high school boys, college women, middle school…) has its own average, and the HS-equivalent view puts every pool on the high-school scale.
Athlete rating 120.1 2022 TF season
Best race 127.8 XC
Races 86
Seasons 6 2017 — 2022

RankedNation #12260·MI #498·MI D3 #106·SAC #10·Team #2 ?

Training paces & VO2max → critical speed 5:57/mi, fitted from 26 races in 2021

Rating scale ?
Speed rating — all races

Cross Country

XC speed rating

2021 XC 122.9

Kalamazoo Christian (MI) · Grade 12

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2021-11-06 Michigan International Speedway (MIS) 5000m 16:40.2 4th · 1st on team 124.9 -2.8% ★PR ★CR SR CSR
2021-10-29 Portage West MS 5000m 16:46.7 1st · 1st on team 125.4 -2.5% PR ★CR SR CSR
2021-10-23 Kalamazoo Christian Elementary 5000m 16:53.1 4th · 1st on team 121.6 -3.7% ★CR CSR
2021-10-09 Portage West MS 5000m 17:09.3 10th · 1st on team 122.9 -2.5% CR CSR
2021-10-02 Otsego HS 5000m 16:58.3 2nd · 1st on team 120.9 -4.1% ★CR CSR
2021-09-29 Galesburg Augusta MS 5000m 18:29.3 3rd · 1st on team 120.1 +3.5% ★CR CSR
2021-09-22 Parchment HS 5000m 17:22 4th · 1st on team 123.1 -0.3% ★CR CSR
2021-09-17 Forest Akers East Golf Course 5000m 17:25.3 10th · 1st on team 124.4 -0.3% ★CR CSR
2021-09-15 Fenn Valley Winery 5000m 16:48.3 3rd · 1st on team 127.8 0.0% PR ★CR ★R SR CSR RSR
2021-09-09 Gilmore Car Museum 5000m 17:16.1 3rd · 1st on team 123.5 -1.0% SR CSR RSR
2021-08-27 South Christian Sports Park 5000m 17:37 5th · 1st on team 121.0 -1.2% ★CR SR CSR RSR
2021-08-24 Riverview Park (St Joe) OFFICIAL 5000m 18:14.5 10th · 1st on team 118.8 -1.0% ★CR SR CSR RSR

2020 XC 118.5

Kalamazoo Christian (MI) · Grade 11

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2020-10-24 Kalamazoo Christian Elementary 5000m 17:11.8 1st · 1st on team 119.6 -3.7% CR CSR
2020-10-22 Kalamazoo Christian Elementary 5000m 17:21.4 1st · 1st on team 119.0 -3.7% CR CSR
2020-10-15 Gilmore Car Museum 5000m 17:11.7 5th · 1st on team 122.9 -1.0% PR ★CR SR CSR
2020-10-10 Lake Township Park 5000m 17:32.1 2nd · 1st on team 124.1 +1.4% ★CR R SR CSR RSR
2020-09-23 Schoolcraft HS 5000m 17:58.7 2nd · 1st on team 119.7 -1.2% ★CR R CSR RSR
2020-09-19 Allendale HS 5000m 17:46.6 10th · 1st on team 115.6 -3.8% ★CR CSR
2020-09-16 Kalamazoo Christian Elementary 5000m 17:46.8 2nd · 1st on team 116.8 -3.7% CR CSR
2020-09-10 Gilmore Car Museum 5000m 17:40.2 3rd · 1st on team 118.9 -1.0% CR R SR CSR RSR
2020-08-26 Kalamazoo Christian Elementary 5000m 18:51.3 2nd · 1st on team 110.0 -3.7% SR CSR RSR

2019 XC 114.5

Kalamazoo Christian (MI) · Grade 10

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2019-11-02 Michigan International Speedway (MIS) 5000m 17:29.6 35th · 1st on team 118.5 -2.8% PR CR SR CSR
2019-10-26 Portage West MS 5000m 17:38.1 3rd · 1st on team 116.9 -2.5% PR CR SR CSR
2019-10-19 Kalamazoo Christian Elementary 5000m 17:50.7 18th · 1st on team 114.5 -3.7% CR SR CSR
2019-10-10 Gobles Middle/High School 5000m 18:19.2 14th · 2nd on team 114.6 -2.0% ★CR CSR
2019-10-05 Portage West MS 5000m 19:06.7 83rd · 4th on team 107.8 -2.5% CSR
2019-09-11 Coloma HS OFFICIAL 5000m 18:21.3 10th · 1st on team 117.1 +1.7% ★CR CSR
2019-09-05 Paw Paw MS 5000m 17:59.3 6th · 1st on team 118.5 +0.9% ★CR R SR CSR RSR
2019-09-03 Comstock 5000m 19:22.3 1st · 1st on team 111.3 +2.1% ★CR CSR
2019-08-27 Riverview Park (St Joe) OFFICIAL 5000m 18:57 14th · 1st on team 111.3 -1.0% CR SR CSR RSR

2018 XC 110.1

Kalamazoo Christian (MI) · Grade 9

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2018-11-03 Michigan International Speedway (MIS) 5000m 18:32.6 107th · 3rd on team 112.0 -2.8% CR CSR
2018-10-27 Portage West MS 5000m 17:46.2 2nd · 1st on team 115.9 -2.5% PR CR SR CSR RSR
2018-10-20 Kalamazoo Christian Elementary 5000m 18:43.2 31st · 3rd on team 110.3 -3.7% CR CSR
2018-10-11 Gilmore Car Museum 5000m 18:44.3 20th · 2nd on team 112.1 -1.0% CR CSR
2018-10-06 Portage West MS 5000m 18:28 39th · 3rd on team 112.4 -2.5% CR CSR
2018-09-29 Otsego HS 5000m 18:04.8 7th · 3rd on team 112.5 -4.1% PR CR SR CSR
2018-09-26 Schoolcraft HS 5000m 18:33.6 15th · 2nd on team 113.3 -1.2% PR CR SR CSR RSR
2018-09-19 Schoolcraft HS 5000m 19:38 13th · 2nd on team 106.7 -1.2% PR CR SR CSR
2018-09-14 Forest Akers East Golf Course 5000m 19:49.8 103rd · 3rd on team 106.8 -0.3% PR CR SR CSR
2018-09-12 Fenn Valley Winery 5000m 19:59.4 33rd · 3rd on team 107.3 0.0% PR CR SR CSR RSR
2018-08-28 Paw Paw High School 5000m 22:17 49th · 4th on team — +1.8% ★CR CSR
2018-08-21 Riverview Park (St Joe) OFFICIAL 5000m 20:34 38th · 4th on team 101.4 -1.0% PR CR SR CSR RSR

2017 XC 117.1

Kalamazoo Christian (MI) · Grade 8

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2017-10-07 Allegan County Fairgrounds 3218m 12:39.5 25th · 2nd on team 118.3 -4.1% ★PR ★CR R SR CSR RSR
2017-09-27 Watervliet High School 3637m 14:40.6 14th · 2nd on team 116.0 -2.3% ★PR ★CR R SR CSR RSR

Track & Field

TF speed rating

2022 TF 117.7

Kalamazoo Christian (MI) · Grade 12

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2022-06-04 MHSAA LP Division 4 Finals 3200m 10:01.78 7th · 1st on team 120.8 -0.1%
2022-05-24 SAC Championship Meet 1600m 4:44.2 6th · 1st on team 119.6 +0.3% ★PR SR
2022-05-20 MHSAA LP Region 34-4 @ Gobles 3200m 10:35.03 2nd · 1st on team 115.6 -0.3%
2022-05-20 MHSAA LP Region 34-4 @ Gobles 1600m 4:55.49 3rd · 1st on team 114.9 -0.3%
2022-05-13 Little Guys Invitational 3200m 9:59.8 1st · 1st on team 122.7 -0.3% ★PR SR RSR
2022-05-11 Quad @ Schoolcraft 1600m 4:57.4 2nd · 1st on team 115.7 +1.3%
2022-05-11 Quad @ Schoolcraft 3200m 10:39.53 2nd · 1st on team 116.7 +1.3%
2022-05-04 SAC Quad at Parchment 3200m 10:11.46 2nd · 1st on team 121.4 +1.7% PR SR RSR
2022-04-27 Hackett vs. Kalamazoo Christian 3200m 10:31.08 1st · 1st on team 117.8 +1.8%
2022-04-27 Hackett vs. Kalamazoo Christian 1600m 4:57.04 1st · 1st on team 116.0 +1.8%
2022-04-21 K-Christian vs GA 3200m 10:25.42 1st · 1st on team 119.3 +1.8% SR RSR
2022-04-21 K-Christian vs GA 1600m 4:52.76 1st · 1st on team 117.9 +1.8% SR
2022-04-06 Galesburg Augusta at Kalamazoo Christian 3200m 10:51.72 1st · 1st on team 114.7 +1.8% SR RSR
2022-04-06 Galesburg Augusta at Kalamazoo Christian 1600m 5:02.72 1st · 1st on team 114.1 +1.8% SR

2021 TF 114.4

Kalamazoo Christian (MI) · Grade 11

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2021-06-05 MHSAA LP Division 4 Finals 3200m 10:16.65 7th · 1st on team 121.2 -0.1%
2021-05-25 SAC Championship 1600m 5:09.07 9th · 1st on team 111.8 +1.4%
2021-05-21 MHSAA LP Region 34-4 @ New Buffalo 3200m 10:15.6 1st · 1st on team 121.5 +1.0% PR SR RSR
2021-05-17 Kalamazoo Christian at Delton 800m 2:20.19 2nd · 2nd on team 110.0 +1.0%
2021-05-17 Kalamazoo Christian at Delton 1600m 4:51.98 1st · 1st on team 117.8 +1.0% PR SR
2021-05-14 Gobles 5 Team Meet 3200m 10:25.11 1st · 1st on team 118.0 -0.3% PR SR RSR
2021-05-12 Parchment Meet 1600m 4:58.57 2nd · 1st on team 115.8 +1.7%
2021-05-05 League Meet vs. Constantine 1600m 4:55.13 1st · 1st on team 117.9 +1.8% PR SR RSR
2021-04-28 League Meet vs. Hackett 3200m 11:08.73 2nd · 2nd on team 112.2 +1.8%
2021-04-28 League Meet vs. Hackett 1600m 4:55.71 1st · 1st on team 117.2 +1.8% PR SR RSR
2021-04-21 League Meet at Lawton 1600m 5:09 1st · 1st on team 112.2 +1.9%
2021-04-21 League Meet at Lawton 3200m 10:59.5 1st · 1st on team 113.9 +1.9% SR RSR
2021-04-12 League Quad 1600m 5:06.78 1st · 1st on team 112.8 +1.8% PR SR RSR
2021-04-12 League Quad 800m 2:18.46 1st · 1st on team 112.1 +1.8% ★PR SR
2021-04-07 League Tri with GA/Comstock 3200m 11:47 1st · 1st on team 107.1 +1.8% SR RSR
2021-04-07 League Tri with GA/Comstock 1600m 5:17.98 4th · 4th on team 109.0 +1.8% PR SR RSR

2019 TF 114.1

Kalamazoo Christian (MI) · Grade 9

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2019-05-21 SAC Conference Meet 3200m 10:44.52 4th · 1st on team 115.1 +0.3%
2019-05-17 MHSAA LP Region 31-4 @ Gobles 3200m 10:34.22 3rd · 1st on team 115.8 -0.3% PR SR RSR
2019-05-13 SAC Valley Divisional 3200m 10:49.85 2nd · 1st on team 115.2 +1.3% RSR
2019-05-10 Little Guys Invitational 3200m 10:46.42 7th · 1st on team 113.9 -0.3% PR SR
2019-05-03 Bangor Invitational 3200m 10:53.82 2nd · 1st on team 113.1 +0.3% PR SR
2019-04-29 Lawton at Kalamazoo Chr. 3200m 11:03 1st · 1st on team 113.9 +1.8%
2019-04-24 Gobles v. Kalamazoo Christian and Lawrence 3200m 11:02.5 1st · 1st on team 111.3 -0.3%
2019-04-17 Tri at Kalamazoo Chr. 3200m 10:59.55 2nd · 1st on team 114.0 +1.8% PR SR RSR
2019-04-09 Hackett at Kalamazoo Chr. 400m 1:01.75 4th · 1st on team — +1.8% ★PR SR

2018 TF 117.2

Kalamazoo Christian (MI) · Grade 8

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2018-05-10 SAC MS Valley Divisional 1600m 5:48.68 4th · 2nd on team 117.0 +1.0%
2018-05-03 MS quad with Constantine, Delton, Schoolcraft 1600m 5:48.12 3rd · 2nd on team 117.4 +1.8% PR SR RSR
2018-05-03 MS quad with Constantine, Delton, Schoolcraft 400m 1:08.16 5th · 2nd on team — +1.8% PR SR